Durabilidad de prótesis valvulares aórticas biológicas: deterioro estructural e incidencia de eventos en el seguimiento alejado / Durability of Bioprosthetic Aortic Valves: Structural Deterioration and Incidence of Events at Long-Term Follow-Up

RESUMEN Introducción: En el tratamiento de la estenosis aórtica grave ha habido un cambio en la elección del tipo de prótesis valvular, con priorización de la utilización de válvulas biológicas. En la actualidad, a nivel mundial, en el 80% de los recambios valvulares aórticos se utilizan prótesis biológicas, cuya menor durabilidad alejada representa su mayor limitación. No contamos con evaluación reciente en nuestro medio de la durabilidad de las válvulas biológicas y la incidencia de eventos a largo plazo. Objetivos: Evaluar el comportamiento alejado de las prótesis valvulares aórticas biológicas, respecto de su sobrevida e incidencia ecocardiográfica de deterioro valvular estructural (DVE). Material y Métodos: Estudio retrospectivo sobre 2365 pacientes operados entre enero de 2003 y diciembre de 2023. Se evaluó la sobrevida alejada y la incidencia de DVE de acuerdo con las modificaciones del gradiente medio transprotésico (GMt) según la edad (dicotomizada en 60 años) y el tamaño de la prótesis utilizada (dicotomizado en 23 mm). Resultados: La edad promedio fue de 73 ± 3,05 años (105 pacientes < 60 años y 2530 pacientes ≥60 años). Sexo masculino en 63,4 %. Seguimiento alejado en el 92 % de los pacientes, media de 5,9 ± 3,2 años. Sobrevida a 5 y 10 años según edad: en < 60 años: 98,3 y 91,7 % vs. ≥ 60 años: 81,7 y 65,7 % (p=0,007) respectivamente. Seguimiento ecocardiográfico global en 1399 (59,7 %) pacientes. Valores del GMt basal, y a 5 y 10 años: a) según edad: en < 60 años: 16 ±3 mmHg, 16 ± 6 mmHg y 19 ± 5 mmHg, vs. en ≥ 60 años: 15 ± 5 mmHg, 16 ± 7 mmHg y 18± 7 mmHg (p=NS); b) según tamaño de la prótesis: en < 23 mm: 17±6 mmHg, 19±7 mmHg y 22± 7 mmHg, vs. en ≥ 23 mm: 15± 5 mmHg, 16± 6 mmHg y 18± 6 mmHg (p= 0,001). Conclusiones: Los pacientes con prótesis valvulares biológicas presentaron una elevada sobrevida alejada con diferencias según el grupo etario. Se registraron en el seguimiento diferencias del GMt (<10 mmHg) en las válvulas < 23 mm, demostrando baja incidencia de DVE grave.

ABSTRACT Background: In the treatment of severe aortic stenosis there has been a shift in the choice of the valve prosthesis type toward the use of biological valves. At present, bioprosthetic valves are used in 80% of aortic valve replacements worldwide. Their main limitation is their reduced long-term durability. No assessment has been yet performed in our setting regarding the durability of bioprosthetic valves and the incidence of long-term events. Objectives: To evaluate the long-term performance of bioprosthetic aortic valves related to survival and echocardiographic incidence of structural valve deterioration (SVD). Methods: A retrospective study of 2365 patients undergoing aortic valve replacement with biological prosthesis between January 2003 and December 2023. We analyzed the long-term survival and the incidence of SVD pursuant to changes in the mean transprosthetic gradient (mTPG) according to age (< or ≥60 years) and prosthetic valve size (< or ≥ 23 mm). Results: Mean age was 73±3.05 years (105 patients <60 years and 2530 patients ≥60 years). A total of 63.4% was male. Of patients, 92% completed a long-term follow-up, mean 5.9±3.2 years. Survival at 5 and 10 years according to age was: in patients <60 years: 98.3 and 91.7% vs. patients ≥60 years: 81.7 and 65.7% (p=0.007), respectively. A total of 1399 (59.7%) patients had an overall echocardiographic follow-up. The values of mTPG at baseline, 5 and 10 years were: a) according to age: in patients <60 years: 16±3 mmHg, 16±6 mmHg and 19±5 mmHg, vs. in patients ≥60 years: 15±5 mmHg, 16±7 mmHg and 18±7 mmHg (p=NS); b) according to prosthesis size: <23 mm: 17±6 mmHg, 19±7mmHg and 22±7 mmHg, vs. ≥23 mm: 15±5 mmHg, 16±6 mmHg and 18±6 mmHg (p= 0.001). Conclusions: Patients with bioprosthetic valves experienced high long-term survival with some differences according to age group. At follow-up, differences in mTPG (<10 mmHg) were observed in prosthetic valve sizes <23 mm, showing low incidence of severe SVD.

Compromiso de arteria renal en paciente con arteritis de Takayasu: reporte de caso y revisión de literatura

Introducción: La arteritis de Takayasu (TAK) es una enfermedad idiopática granulomatosa de grandes vasos que afecta predominantemente a la aorta, ramas arteriales principales y pulmonares. La prevalencia es mayor en adultos que en niños, con una incidencia de 1,1 por millón de personas. Su etiología sigue siendo poco conocida. Caso Clínico: Se presenta el caso de un paciente pediátrico con pérdida de la masa renal izquierda por disminución del calibre de arteria renal ipsilateral meses después del debut de la Arteritis de Takayasu como aneurisma de aorta abdominal. El paciente cumple criterios de TAK según clasificación EULAR/PRINTO/PReS basados en anomalía angiográfica, hipertensión arterial y elevación reactantes de fase aguda. La TAK presenta afectación sistémica y alteraciones cardiovasculares (75-85%), hipertensión en más del 80% de los casos, con estenosis de la arteria renal en casi el 50% de los pacientes. Conclusiones: El tratamiento general de la TAK está dirigido a controlar la inflamación vascular y prevenir el daño orgánico irreversible. A pesar de un diagnóstico temprano con tratamiento oportuno y agresivo el seguimiento en la enfermedad de Takayasu es imprescindible dado que la progresión de esta puede seguirse dando. Deben establecerse estrategias para asegurar la adherencia al seguimiento. (provided by Infomedic Intl.)

Introduction: Takayasu's arteritis (TAK) is an idiopathic granulomatous large vessel disease predominantly affecting the aorta, main arterial branches and pulmonary arteries. The prevalence is higher in adults than in children, with an incidence of 1.1 per million people. Its etiology remains poorly understood. Case Report: We present the case of a pediatric patient with loss of left renal mass due to decreased ipsilateral renal artery caliber months after the debut of Takayasu's arteritis as abdominal aortic aneurysm. The patient meets TAK criteria according to EULAR/PRINTO/PReS classification based on angiographic abnormality, arterial hypertension and elevated acute phase reactants. TAK presents systemic involvement and cardiovascular alterations (75-85%), hypertension in more than 80% of cases, with renal artery stenosis in almost 50% of patients. Conclusions: The general treatment of TAK is aimed at controlling vascular inflammation and preventing irreversible organ damage. Despite early diagnosis with timely and aggressive treatment, follow-up in Takayasu's disease is imperative as progression may still occur. Strategies should be established to ensure adherence to follow-up. (provided by Infomedic Intl.)

Reemplazo de la raíz aórtica con preservación valvular en niños y adolescentes: experiencia y resultados en una institución pública en Argentina / Valve-Sparing Aortic Root Replacement in Children and Adolescents: Experience and Results in a Public Institution in Argentina

RESUMEN Background: La cirugía de reemplazo de la raíz aórtica con preservación valvar tipo reimplante (RRAoPV) está indicada en pacientes con aneurisma de la raíz aórtica. Objetivos: Evaluar los resultados a mediano plazo de esta técnica quirúrgica en niños y adolescentes de nuestra institución. Material y métodos: Estudio retrospectivo. Se incluyó a 21 pacientes a quienes se realizó cirugía de RRAoPV entre julio de 2006 y julio de 2022. Se evaluó la relación entre las variables basales y la progresión de insuficiencia aórtica (IAo). Resultados: La mediana de edad fue de 13 años. Diecisiete pacientes tenían enfermedad del tejido conectivo, (3 de ellos además con aorta bicúspide), 2 cardiopatías congénitas operadas aisladas, 1 válvula aórtica bicúspide aislada y 1 síndrome de Turner. Trece pacientes tenían IAo leve y 5 moderada en el preoperatorio. Tres pacientes requirieron reemplazo aórtico precoz, 2 por endocarditis y uno por IAo aguda grave. La mediana de seguimiento fue de 4,1 años. De 17 pacientes en seguimiento, 2 evolucionaron con IAo leve-moderada, 2 moderada y 3 grave. Uno de ellos requirió cirugía de Bentall. No se encontró asociación del grado de IAo preoperatoria, ni de la presencia de aorta bicúspide, con la progresión de la IAo postoperatoria. No hubo asociación entre el tipo de coaptación valvular postoperatorio y el desarrollo de la IAo mayor que leve en el seguimiento. Conclusiones: El RRAoPV tipo reimplante es una técnica quirúrgica viable en pacientes pediátricos con buenos resultados a mediano plazo y baja tasa de reoperación.

ABSTRACT Background: Valve-sparing aortic root replacement (VSARR) with reimplantation technique is indicated in patients with aortic root aneurysm. Objective: To evaluate the mid-term outcomes of this surgical technique in children and adolescents in our institution. Methods: Retrospective study. Twenty-one patients who underwent VSARR surgery were included between July 2006 and July 2022. The relationship between baseline variables and progression of aortic regurgitation (AR) was assessed. Results: The median age was 13 years. Seventeen patients had connective tissue disorders (3 with bicuspid aortic valve), 2 operated congenital heart disease, 1 isolated bicuspid aortic valve and 1 Turner syndrome. Thirteen patients had mild AR and 5 had moderate AR preoperatively. Three patients underwent early aortic replacement, 2 due to endocarditis and 1 due to severe acute AR. The median follow-up was 4.1 years. Of 17 patients at follow-up, 2 developed mild-moderate AR, 2 moderate AR and 3 severe AR. One of them underwent Bentall surgery. No association was found between the degree of preoperative AR or the presence of bicuspid aortic valve and the progression of postoperative AR. There was no association between the type of postoperative valve coaptation and the development of AR greater than mild at follow-up. Conclusions: VSARR with reimplantation is a feasible surgical technique with favorable mid-term outcomes and low reoperation rate in pediatric patients.

Resumen: Consenso internacional para la nomenclatura y clasificación de la válvula aórtica bicúspide congénita y su aortopatía, con fines clínicos, quirúrgicos, intervencionistas y de investigación / Summary: International consensus statement on nomenclature and classification of the congenital bicuspid aortic valve and its aortopathy, for clinical, surgical, interventional and research purposes

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Abstract This consensus of nomenclature and classification for congenital bicuspid aortic valve and its aortopathy is evidence-based and intended for universal use by physicians (both pediatricians and adults), echocardiographers, advanced cardiovascular imaging specialists, interventional cardiologists, cardiovascular surgeons, pathologists, geneticists, and researchers spanning these areas of clinical and basic research. In addition, as long as new key and reference research is available, this international consensus may be subject to change based on evidence-based data1.

Endocarditis por Haemophilus aphrophilus

La endocarditis infecciosa (EI) es una enfermedad causada por microorganismos que se asientan principalmente en las válvulas cardiacas. Frecuentemente ocurren por laceraciones orales, gastrointestinales y urogenitales, además de procedimientos médicos que pueden causar bacteriemia la cual conlleva a adherencia bacteriana e inflamación local y éstas a destrucción valvular(1,2). Las bacterias grampositivas son mayoritariamente asociadas a EI, y en menor proporción, las del grupo HACEK, saprofitos de la orofaringe, que son responsables de menos del 5% de casos(2-4). Se presenta el caso de un varón de 23 años con cuadro de 1 mes de evolución de sensación febril, sudoración y astenia; al que posteriormente se agrega tos productiva. Se plantea foco probable cardiológico por antecedentes y hallazgos físicos, retornando aislamiento del germen Haemophilus aphrophilus, microorganismo poco habitual.

Infective endocarditis (IE) is a disease caused by microorganisms that settle mainly in the heart valves. They frequently occur due to oral, gastrointestinal and urogenital lacerations, in addition to medical procedures that can cause bacteremia which leads to bacterial adhesion and local inflammation and these to valve destruction(1,2).. Gram-positive bacteria are mostly associated with IE, and to a lesser extent, those of the HACEK group, saprophytes of the oropharynx, which are responsible for less than 5% of cases(2-4). We present the case of a 23-year-old man with a 1-month history of fever, sweating, and asthenia; to which a productive cough is later added. A probable cardiological focus is proposed due to history and physical findings, returning isolation of the Haemophilus aphrophilus germ, an unusual microorganism.

Curva de Aprendizagem da Mortalidade Hospitalar da Substituição da Válvula Aórtica Transcateter: Insights do Registro Nacional Brasileiro / Learning Curve for In-Hospital Mortality of Transcatheter Aortic Valve Replacement: Insights from the Brazilian National Registry

Resumo Fundamento Dados robustos sobre a curva de aprendizagem (LC) da substituição da válvula aórtica transcateter (TAVR) são escassos nos países em desenvolvimento. Objetivo Avaliar a LC da TAVR no Brasil ao longo do tempo. Métodos Analisamos dados do registro brasileiro de TAVR de 2008 a 2023. Pacientes de cada centro foram numerados cronologicamente em número sequencial de caso (NSC). A LC foi realizada usando um spline cúbico restrito ajustado para o EuroSCORE-II e o uso de próteses de nova geração. Ainda, os desfechos hospitalares foram comparados entre grupos definidos de acordo com o nível de experiência, com base no NSC: 1º ao 40º caso (experiência inicial), 41º ao 80º caso (experiência básica), 81º ao 120º caso (experiência intermediária) e 121º caso em diante (experiência alta). Análises adicionais foram conduzidas de acordo com o número de casos tratados antes de 2014 (>40 e ≤40 procedimentos). O nível de significância adotado foi p <0,05. Resultados Foram incluídos 3194 pacientes de 25 centros. A idade média foi 80,7±8,1 anos e o EuroSCORE II médio foi 7±7,1. A análise da LC demonstrou uma queda na mortalidade hospitalar ajustada após o tratamento de 40 pacientes. Um patamar de nivelamento na curva foi observado após o caso 118. A mortalidade hospitalar entre os grupos foi 8,6%, 7,7%, 5,9%, e 3,7% para experiência inicial, básica, intermediária e alta, respectivamente (p<0,001). A experiência alta foi preditora independente de mortalidade mais baixa (OR 0,57, p=0,013 vs. experiência inicial). Centros com baixo volume de casos antes de 2014 não mostraram uma redução significativa na probabilidade de morte com o ganho de experiência, enquanto centros com alto volume de casos antes de 2014 apresentaram uma melhora contínua após o caso de número 10. Conclusão Observou-se um fenômeno de LC para a mortalidade hospitalar do TAVR no Brasil. Esse efeito foi mais pronunciado em centros que trataram seus 40 primeiros casos antes de 2014 que naqueles que o fizeram após 2014.

Abstract Background Robust data on the learning curve (LC) of transcatheter aortic valve replacement (TAVR) are lacking in developing countries. Objective To assess TAVR's LC in Brazil over time. Methods We analyzed data from the Brazilian TAVR registry from 2008 to 2023. Patients from each center were numbered chronologically in case sequence numbers (CSNs). LC was performed using restricted cubic splines adjusted for EuroSCORE-II and the use of new-generation prostheses. Also, in-hospital outcomes were compared between groups defined according to the level of experience based on the CSN: 1st to 40th (initial-experience), 41st to 80th (early-experience), 81st to 120th (intermediate-experience), and over 121st (high-experience). Additional analysis was performed grouping hospitals according to the number of cases treated before 2014 (>40 and ≤40 procedures). The level of significance adopted was <0.05. Results A total of 3,194 patients from 25 centers were included. Mean age and EuroSCORE II were 80.7±8.1 years and 7±7.1, respectively. LC analysis demonstrated a drop in adjusted in-hospital mortality after treating 40 patients. A leveling off of the curve was observed after case #118. In-hospital mortality across the groups was 8.6%, 7.7%, 5.9%, and 3.7% for initial-, early-, intermediate-, and high-experience, respectively (p<0.001). High experience independently predicted lower mortality (OR 0.57, p=0.013 vs. initial experience). Low-volume centers before 2014 showed no significant decrease in the likelihood of death with gained experience, whereas high-volume centers had a continuous improvement after case #10. Conclusion A TAVR LC phenomenon was observed for in-hospital mortality in Brazil. This effect was more pronounced in centers that treated their first 40 cases before 2014 than those that reached this milestone after 2014.

Prevalencia de estenosis aórtica moderada-grave en pacientes con amiloidosis cardiaca en un centro de referencia / Prevalence of moderate-severe aortic stenosis in patients with cardiac amyloidosis in a referral center

Resumen Antecedentes: La estenosis aórtica (EA) es actualmente la enfermedad valvular más frecuente, con una prevalencia estimada de más del 4 % en octogenarios. Objetivo: Describir la prevalencia de estenosis aórtica (EA) moderada-grave en pacientes con amiloidosis por transtiretina wild type (ATTRwt). Además, describir las características clínicas, ecocardiográficas y la evolución en este grupo de pacientes. Método: Estudio de cohorte retrospectiva de pacientes con diagnóstico de ATTRwt, pertenecientes al Registro Institucional de Amiloidosis del Hospital Italiano de Buenos Aires, en el periodo del 30/11/2007 al 31/05/2021. El seguimiento de los pacientes se realizó a través de la historia clínica electrónica de la institución. Se estimó la prevalencia de EA moderada-grave, que se presenta como porcentaje con su intervalo de confianza del 95% (IC 95%). Se compararon las características por grupos según tuvieran o no EA moderada-grave. Resultados: Se incluyeron 104 pacientes con diagnóstico de ATTRwt. La mediana de seguimiento fue de 476 días [rango intercuartílico: 192-749]. La prevalencia de EA moderada-grave al momento del diagnóstico de ATTRwt fue del 10.5% (n = 11; IC95%: 5-18%). La mediana de edad de los pacientes con EA fue de 86 años [78-91] y predominó el sexo masculino (81.8%). La mayoría de los pacientes tenían el antecedente de insuficiencia cardiaca (n = 8) y fibrilación auricular (n = 8). Predominaron los pacientes con EA grave de bajo flujo y bajo gradiente (n = 7). Cuatro pacientes fueron sometidos a alguna intervención en la válvula aórtica. Durante el seguimiento, 5 pacientes (46%) tuvieron internaciones por insuficiencia cardiaca descompensada y 4 (36%) fallecieron. Conclusiones: En nuestra cohorte, la coexistencia de ambas patologías tuvo una prevalencia similar a la reportada en la literatura internacional. Se trató de una población añosa con alto porcentaje de fibrilación auricular y antecedente de insuficiencia cardiaca. La mayoría presentaron EA grave de bajo flujo y bajo gradiente.

Abstract Background: Aortic stenosis (AS) is currently the most common valvular disease, with an estimated prevalence of over 4% in octogenarians. Objective: To describe the prevalence of moderate-severe aortic stenosis (AS) in patients with wild type transthyretin amyloidosis (ATTRwt). Also, describe the clinical features, echocardiographic characteristics and clinical evolution. Method: Retrospective cohort of patients with diagnosis of ATTRwt, belonging to Hospital Italiano de Buenos Aires Institutional Amyloidosis Registry, from 30/11/2007 to 31/05/2021. Patients follow up was carried out through the institution clinical history. The prevalence of moderate-severe AE was estimated and presented as a percentage with its 95% confidence interval (95% CI). The characteristics were compared by groups according to whether or not they had moderate-severe AS. Results: 104 patients with ATTRwt were included. Median follow up was 476 days [interquartile range: 192-749]. Moderate-severe AS prevalence at the ATTRwt time of diagnosis was 10.5% (n = 11; 95% CI: 5-18%). The median age of patients with AS moderate-severe at the time of diagnosis of ATTRwt was 86 years [78-91] and the male sex predominated (82%). Most of the patients had a history of heart failure (n = 8) and atrial fibrillation (n = 8) prior to the diagnosis of ATTRwt. Most of the patients were subclassified as low flow low gradient severe AS group (n = 7). Four patients underwent some intervention on the aortic valve. During follow-up, 5 patients (46%) were hospitalized for decompensated heart failure and 4 (36%) died. Conclusions: In our cohort, the coexistence of both pathologies had a similar prevalence as reported in the international literature. It was an elderly population with a high percentage of atrial fibrillation and history of heart failure. Most of the patients presented with severe AS with low flow low gradient.

Infectious endarteritis in aortic coarctation: two spectra of an infrequent disease / Endarterite infecciosa na coarctação da aorta: dois espectros de uma doença pouco frequente

ABSTRACT Objective: To describe two different degrees of clinical commitment and results in the evolution of infectious endarteritis in patients without a previous diagnosis of aortic coarctation. Case description: Two male patients aged 13 and 9 years old were admitted. The first due to a fever for 2 months, which started after dental cleaning, and the second due to high blood pressure, both patients with asthenia and weight loss. In the first case, the transthoracic echocardiogram showed aortic coarctation, and the transesophageal echocardiogram showed the presence of vegetations in the post-coarctation area, without pseudoaneurysms, with blood culture positive for Streptococcus mitis. This patient was treated for six weeks with crystalline penicillin, resolving the infection without complications. The second case was assessed for high blood pressure with a history of fever, and was treated with antibiotics. When performing a transthoracic echocardiogram, aortic coarctation was observed with a saccular image classified as a pseudoaneurysm by angiography and tomography. Blood culture was negative, and the patient developed an episode of hematemesis whose initial etiology could not be determined. Before surgical repair, he had a second episode of copious hematemesis with hypovolemic shock and death. Comments: We need to have a high index of clinical suspicion to establish the diagnosis of aortic coarctation complicated by endarteritis and start the appropriate antibiotic treatment, always maintaining surveillance for the early detection of pseudoaneurysms.

RESUMO Objetivo: Descrever dois diferentes graus de comprometimento clínico e resultados na evolução de endarterite infecciosa em pacientes sem diagnóstico prévio de coarctação da aorta. Descrição do caso: Dois pacientes do sexo masculino com idades entre 13 e nove anos foram internados. O primeiro por febre durante dois meses, iniciada após limpeza dentária. O segundo por hipertensão arterial. Ambos com astenia e perda de peso. No primeiro caso, o ecocardiograma transtorácico mostrou coarctação da aorta e o ecocardiograma transesofágico revelou vegetações na área pós-coarctação, sem pseudoaneurismas. A hemocultura foi positiva para de Streptococcus mitis. Este paciente foi tratado por seis semanas com penicilina cristalina, resolvendo a infecção sem complicações. O segundo caso foi avaliado pela presença de hipertensão arterial, com história de febre tratada com antibióticos. Ao realizar o ecocardiograma transtorácico, observou-se coarctação da aorta com imagem sacular classificada como pseudoaneurisma pela angiografia e tomografia. A hemocultura foi negativa. O paciente desenvolveu um episódio de hematêmese, cuja etiologia inicial não pôde ser determinada. Antes da correção cirúrgica, apresentou um segundo episódio de hematêmese profusa, com choque hipovolêmico e óbito. Comentários: Devemos ter um alto índice de suspeição clínica para poder estabelecer o diagnóstico de coarctação da aorta complicada com endarterite e iniciar o tratamento antibiótico adequado. É preciso manter a vigilância para a detecção precoce de pseudoaneurismas.

Fatores Preditores de Risco de Sangramento em Pacientes Submetidos a Cirurgia Valvar / Predictive Factors for Bleeding Risk in Patients Undergoing Valvular Surgery

Resumo Fundamento: O pós-operatório de cirurgia cardíaca valvar é desafiador devido ao risco de sangramento, levando a complicações e aumento da morbimortalidade. Objetivo: Desenvolver um escore de risco para prever hemorragia em pacientes no pós-operatório de cirurgia valvar. Métodos: Estudo retrospectivo de pacientes submetidos a cirurgia valvar entre 2021 e 2022 no IDPC. Pacientes com sangramento maior foram selecionados com base nos critérios de BARC e Bojar. Foi realizada uma análise de regressão logística para fatores relacionados ao sangramento e foi criado um nomograma. Para significância estatística, foram considerados p<0,05 e um intervalo de confiança de 95%. O estudo foi aprovado pelo CEP. Resultados: Foram analisados 525 pacientes com idade média de 56 anos e predomínio do sexo feminino. A valvopatia mais comum foi a insuficiência mitral, 8,8% apresentaram sangramento aumentado e houve 4,3% de reabordagens cirúrgicas. As variáveis com significância estatística foram: insuficiência tricúspide (OR 3,31, p < 0,001), doença renal crônica/lesão renal aguda (OR 2,97, p = 0,006), hemoglobina pré-operatória (OR 0,73, p < 0,001), reoperações (OR 2,5, p = 0,003), tempo de circulação extracorpórea (CEC) (OR 1,12, p < 0,001), abordagem de 2 valvas OR de 2,23 (p = 0,013), uso de concentrado de hemácias OR de 2,8 (p = 0,001). No modelo múltiplo a insuficiência tricúspide, tempo de CEC e hemoglobina pré-operatória alcançaram significância estatística. Conclusão: O tempo de CEC, hemoglobina pré-operatória e insuficiência tricúspide associaram-se independentemente com hemorragia pós-operatória. A escala proposta é plausível, e pode auxiliar na predição de risco de sangramento.

Abstract Background: The postoperative period of heart valve surgery is challenging due to the risk of bleeding, leading to complications and increased morbidity and mortality. Objective: To develop a risk score to predict bleeding in patients after valve surgery. Methods: Retrospective study of patients operated on between 2021 and 2022. Patients with major bleeding were selected based on the BARC and Bojar criteria. A logistic regression analysis was performed for factors related to bleeding and a nomogram of scores was created. For statistical significance, p<0.05 and a 95% confidence interval were considered. The study was approved by the CEP. Results: 525 patients were analyzed, with a mean age of 56 years and a predominance of females. The most common valve disease was mitral insufficiency, 8.8% had increased bleeding and 4.3% had surgical reoperations. The variables with statistical significance were tricuspid insufficiency (OR 3.31, p < 0.001), chronic kidney disease/acute kidney injury (OR 2.97, p = 0.006), preoperative hemoglobin (OR 0.73, p < 0.001), reoperations (OR 2, 5, p = 0.003), cardiopulmonary bypass (CPB) time (OR 1.12, p < 0.001), 2-valve approach OR of 2.23 (p = 0.013), use of packed red blood cells OR of 2.8 (p = 0.001). In the multiple model, tricuspid insufficiency, CPB time and preoperative hemoglobin reached statistical significance. Conclusion: CPB time, preoperative hemoglobin and tricuspid insufficiency were independently associated with postoperative bleeding. The proposed scale is plausible and can help predict the risk of bleeding.

Desfechos Intra-Hospitalares no Registro Brasileiro de Implante de Bioprótese Aórtica por Cateter - 14 Anos em Análise / In-Hospital Outcomes in the Brazilian Registry of Transcatheter Aortic Valve Implantation - 14-Year Analysis

Resumo Fundamento O implante valvar aórtico transcateter (TAVI) apresenta crescimento exponencial de suas indicações e foi incorporado ao Sistema Único de Saúde em 2022, sendo necessário avaliar seu uso no Brasil. Objetivo Conhecer os fatores associados a mortalidade e complicações não fatais intra-hospitalares, em ambos os gêneros, na população do Registro Brasileiro de Implante de Bioprótese Aórtica por Cateter e Novas Tecnologias (RIBAC-NT). Método Análise do banco de dados RIBAC-NT de 2008 a 2022. Aplicados modelos logísticos e machine learning na avaliação estatística da associação das variáveis com os desfechos, empregando o software R e nível de significância de 5%. Resultados Analisados 2.588 pacientes (mulheres, 51,2%; óbito intra-hospitalar, 8,2%). Mortalidade associou-se a complicações do procedimento, dentre elas destacam-se complicações vasculares (CV) maiores e insuficiência renal aguda (IRA) (p< 0,001). A CV maior ocorreu em 6%, com 34% de mortalidade; IRA ocorreu em 8,8%, com 13% de mortalidade, que aumentou até 8 vezes quando IRA coexistiu com outras complicações. Complicações não fatais ocorreram em 50,5% do total de pacientes, acometendo 63% daqueles com bioprótese de 1a geração (1G) e 39% daqueles com bioprótese de 2a geração (2G) p<0,001. O acesso não femoral e o ritmo cardíaco influenciaram as complicações não fatais nas próteses 1G, enquanto complicações das próteses 2G associaram-se ao gênero feminino (39,6% vs. 30,4%, p= 0,003). Conclusão A mortalidade intra-hospitalar na população do RIBAC-NT associou-se diretamente a complicações do procedimento, principalmente CV maior e IRA. A ocorrência de complicações não fatais diferiu conforme o gênero e o tipo da bioprótese.

Abstract Background Transcatheter aortic valve implantation (TAVI) has had an exponential increase of its indication, being incorporated into the Brazilian Unified Public Health System in 2022, thus requiring assessment of its use in Brazil. Objeticve To assess the factors associated with in-hospital mortality and non-fatal complications in both genders in the Brazilian Registry of Transcatheter Aortic Valve Implantation and New Technologies (RIBAC-NT) population. Method Analysis of the RIBAC-NT database from 2008 to 2022 was performed. Logistic models and machine learning were used for statistical assessment of the association between variables and outcomes. The software R was used and a 5% significance level, adopted. Results Analysis of 2588 patients (women, 51.2%; in-hospital death, 8.2%). Mortality was associated with procedural complications, of which major vascular complication (VC) and acute kidney injury (AKI) stood out (p<0.001). Major VC occurred in 6% of the patients, with 34% mortality; AKI occurred in 8.8%, with 13% mortality, which increased up to 8 times when AKI coexisted with other complications. Non-fatal complications occurred in 50.5% of all patients, affecting 63% of those with 1st generation (1G) bioprosthesis and 39% of those with 2nd generation (2G) bioprosthesis (p<0,001). Non-femoral access and heart rhythm influenced non-fatal complications in patients with 1G prostheses, while complications in patients with 2G prosthesis associated with the female gender (39.6% vs. 30.4%, p=0.003). Conclusion In-hospital mortality in the RIBAC-NT population was directly associated with procedural complications, mainly major VC and AKI. The occurrence of non-fatal complications differed according to gender and bioprosthesis type.

Tendência Temporal no Implante Percutâneo de Bioprótese Aórtica: Análise de 10 Anos do Registro TAVIDOR / Temporal Trends in Transcatheter Aortic Valve Implantation: 10-Year Analysis of the TAVIDOR Registry

Resumo Fundamento O implante percutâneo de bioprótese valvar aórtica (TAVI) consolidou-se como opção terapêutica da estenose aórtica de grau importante. Dados sobre as características evolutivas dos procedimentos e dos resultados obtidos com a técnica ao longo da última década, em escala nacional, são desconhecidos. Objetivos Analisar a tendência temporal referente ao perfil demográfico, características dos procedimentos e desfechos hospitalares de pacientes submetidos a TAVI na Rede D'Or São Luiz. Métodos Registro observacional envolvendo 29 instituições nacionais. Comparou-se características dos procedimentos realizados de 2012 a 2017 (Grupo 1) e de 2018 a 2023 (Grupo 2). Foram considerados significantes os resultados com valor de p < 0,05. Resultados Foram analisados 661 casos, 95 pertencentes ao Grupo 1 e 566 ao Grupo 2. A média de idade foi 81,1 anos. Observou-se no Grupo 1 maior prevalência de pacientes em classe funcional III ou IV e escore de risco > 8%. Foi mais frequente o emprego de anestesia geral, monitorização ecocardiográfica transesofágica e via de acesso por dissecção. Maior taxa de sucesso do procedimento (95,4% versus 89,5%; p = 0,018) foi aferida em implantes efetivados a partir de 2018, assim como menor mortalidade (3,9% versus 11,6%; p = 0,004) e necessidade de marcapasso definitivo (8,5% versus 17,9%; p = 0,008). Conclusões A análise temporal de 10 anos do Registro TAVIDOR demonstra uma queda na complexidade clínica dos pacientes. Além disso, o avanço para técnicas de implante minimalistas, somadas à evolução tecnológica dos dispositivos, podem ter contribuído para desfechos favoráveis dentre aqueles cujo implante ocorreu no último quinquênio.

Abstract Background Transcatheter aortic valve implantation (TAVI) has established itself as the preferential strategy to approach severe aortic stenosis. Information on procedural improvements and nationwide results obtained with the technique throughout the past decade are unknown. Objectives To assess the temporal variation of the demographic profile, procedural characteristics, and in-hospital outcomes of patients undergoing TAVI procedures at the Rede D'Or São Luiz. Methods Observational registry comprising 29 national institutions, comparing the characteristics of the TAVI procedures performed from 2012 to 2017 (Group 1) to those performed from 2018 to 2023 (Group 2). The statistical significance level adopted was p < 0.05. Results This study assessed 661 patients, 95 in Group 1 and 566 in Group 2, with a mean age of 81.1 years. Group 1 patients had a higher prevalence of New York Heart Association functional class III or IV and STS risk score > 8%. In addition, they more often underwent general anesthesia, transesophageal echocardiographic monitoring, and access through femoral dissection. Group 2 patients had a higher success rate of the TAVI procedure (95.4% versus 89.5%; p = 0.018), lower mortality (3.9% versus 11.6%; p = 0.004), and less often needed permanent pacemaker implantation (8.5% versus 17.9%; p = 0.008). Conclusions The 10-year temporal trends analysis of the TAVIDOR Registry shows a reduction in patients' clinical complexity over time. Furthermore, the advance to minimalistic implantation techniques, added to the technological evolution of the devices, may have contributed to the favorable outcomes observed among those whose implantation occurred in the last 5 years studied.

Anticoagulación precoz con warfarina en pacientes sometidos a sustitución valvular aórtica por bioprótesis: ensayo prospectivo randomizado: análisis interino / Early anticoagulation with warfarin in patients undergoing bioprosthetic aortic valve replacement: randomized prospective trial: interim analysis / Anticoagulação precoce com varfarina em pacientes submetidos à troca valvar aórtica por bioprótese: ensaio prospectivo randomizado: análise provisória

Introducción: aunque las bioprótesis son menos trombogénicas que las válvulas mecánicas; la trombosis de estas es una entidad cada vez más reconocida como causa de disfunción protésica potencialmente reversible. No está definido el beneficio de la anticoagulación rutinaria versus antiagregación plaquetaria luego de la sustitución valvular aórtica (SVA) por bioprótesis. La anticoagulación precoz podría asociarse a menores gradientes transprotésicos con similar riesgo de complicaciones. Objetivos: el objetivo primario es determinar si existe una diferencia significativa en la variación del gradiente transprotésico medio al año de la SVA entre las dos estrategias de tratamiento antitrombótico. Los objetivos secundarios son la comparación de la variación del gradiente máximo y del área valvular aórtica, y parámetros clínicos que incluyen la Clase Funcional de la New York Heart Association, las tasas de sangrado mayor y menor y la incidencia de eventos embólicos. Este trabajo representa el análisis interino a 3 meses de un proyecto a más largo plazo, y se propone mostrar los resultados preliminares de los puntos finales previamente definidos. Métodos: se presenta el análisis interino de un ensayo randomizado multicéntrico. Todos los pacientes sometidos a SVA por bioprótesis porcinas fueron sucesivamente reclutados en dos centros de cirugía cardíaca desde el 01/01/2019 hasta el 01/09/2019. El grupo anticoagulación recibió warfarina durante los primeros 3 meses y ambos recibieron aspirina a largo plazo. Se realizaron instancias de seguimiento clínicas y ecocardiográficas antes del alta, a los 3 meses y al año. Resultados: se reclutaron 107 pacientes; 46% de ellos fueron randomizados al grupo anticoagulación y 54% al grupo control. No existieron diferencias en las características basales. Tampoco existieron diferencias significativas entre ambos grupos en la variación entre el alta y los 3 meses del área valvular protésica, coeficiente de obstrucción, gradiente máximo ni gradiente medio ni en la clase funcional. En cuanto a las complicaciones, no existieron eventos embólicos y los sangrados no difirieron significativamente entre ambos grupos. Conclusiones: la anticoagulación no modificó la variación de los gradientes transprotésicos a los 3 meses. Asimismo, no produjo mayor incidencia de efectos adversos. Todavía no está dilucidado si la anticoagulación precoz con warfarina luego de la SVA tiene impacto en los resultados a largo plazo.

Introduction: although bioprostheses are less thrombogenic than mechanical valves, bioprosthesis valve thrombosis is an increasingly recognized entity that can cause potentially reversible prosthetic valve dysfunction. There is a lack of consensus whether to use anticoagulation after aortic valve replacement (AVR) or antiplatelet therapy. Our hypothesis is that early anticoagulation is associated with lower transprosthetic gradients with similar risk of complications. Objective: primary objective is to determine if there is a significant difference in the variation of the mean transprosthetic gradient (ΔGm) one year after SVA between the two antithrombotic treatment strategies. Secondary objectives are the comparison of the variation of maximum gradient and aortic valve area, and clinical parameters including NYHA functional class, major and minor bleeding rates, and the incidence of embolic events. This work represents the 3-month interim analysis of a longer-term project, and is intended to show the preliminary results of the previously defined end points. Methods: this is an interim analysis of a multicenter randomized trial. All patients who underwent AVR by porcine bioprostheses were successively recruited in two cardiac surgery centers in Montevideo between 01/01/2019 and 01/09/2019. The anticoagulation group received warfarin for 3 months. Both groups received aspirin. Clinical and echocardiographic follow-up consultations were performed before discharge, at 3 months, and at 1 year. Results: 107 patients were recruited, 46% were randomized to the anticoagulation group and 54% to the control group. There were no differences in baseline characteristics. There were no significant differences between the two groups in the variation between discharge and 3 months of effective orifice area, doppler velocity index, peak gradient and mean gradient. There were also no differences between both groups in functional class. Regarding complications, there were no embolic events and bleeding did not differ significantly. Conclusions: in this study, anticoagulation did not modify the variation of transprosthetic gradients at 3 months. Likewise, it did not produce a higher incidence of adverse effects. It remains unclear whether early anticoagulation with warfarin after AVR has an impact on long-term outcomes.

Introdução: embora as biopróteses sejam menos trombogênicas que as mecânicas, a trombose de biopróteses é uma entidade cada vez mais reconhecida como causa de disfunção protética potencialmente reversível. A anticoagulação de rotina após a substituição da valva aórtica por bioprótese (SVA) não está definida. Nossa hipótese é que a anticoagulação precoce está associada a menores gradientes transprotéticos com risco semelhante de complicações. Objetivo: o objetivo principal é determinar se há uma diferença significativa na variação do gradiente transprotético médio (ΔGm) um ano após SVA entre as duas estratégias de tratamento antitrombótico. Os objetivos secundários são a comparação da variação do gradiente máximo e da área valvar aórtica e parâmetros clínicos, incluindo NYHA CF, taxas de sangramento maior e menor e incidência de eventos embólicos. Este trabalho representa a análise intercalar de 3 meses de um projeto de longo prazo, e pretende mostrar os resultados preliminares dos pontos finais previamente definidos. Métodos: apresenta-se a análise interina de um estudo multicêntrico randomizado. Todos os pacientes submetidos a SVA por biopróteses suínas foram sucessivamente recrutados em dois centros de cirurgia cardíaca em Montevidéu, durante um período de recrutamento de 1/1/2019 a 1/9/2019. O grupo de anticoagulação recebeu warfarina por 3 meses. Ambos os grupos receberam aspirina. Foram realizadas consultas médicas clínicas e ecocardiográficas antes da alta, aos 3 meses e ao 1 ano. Resultados: foram recrutados 107 pacientes, 46% foram randomizados para o grupo anticoagulação e 54% para o grupo controle. Não houve diferenças nas características basais. Não houve diferenças significativas entre os dois grupos da variação entre alta e 3 meses na área valvar, coeficiente de obstrução, gradiente máximo ou gradiente médio. Também não houve diferenças entre os dois grupos na classe funcional. Em relação às complicações, não houve eventos embólicos e sangramentos não diferiram significativamente. Conclusões: neste estudo, a anticoagulação não modificou a variação dos gradientes transprotéticos aos 3 meses. Da mesma forma, não produziu maior incidência de efeitos adversos. Ainda não está claro se a anticoagulação precoce com varfarina após SVA tem impacto nos resultados a longo prazo.

Compromiso aórtico en síndrome de Marfan ¿es suficiente el tratamiento de la raíz aórtica? / Aortic challenges in Marfan syndrome, is the management of the aortic root enough?

Resumen Introducción: La sobrevida de pacientes con síndrome de Marfan y compromiso de la raíz aórtica ha aumentado debido a la introducción de técnicas de reemplazo de raíz aórtica con preservación valvular. Objetivo: Identificar y caracterizar desenlaces a corto y largo plazo de pacientes con síndrome de Marfan intervenidos con la técnica de reemplazo de la raíz aórtica con reimplante de la válvula aórtica (procedimiento de Tirone David). Materiales y método: Serie de casos de pacientes con síndrome de Marfan sometidos al procedimiento quirúrgico de Tirone David entre 2002 y 2020. Se generaron curvas de Kaplan-Meier para evaluar el tiempo libre de reintervención aórtica y la sobrevida. Resultados: Se incluyeron 18 pacientes, con edad promedio de 29 años. Se identificó progresión de la enfermedad en el 35.3%, determinada por reintervención en 5 pacientes, disección aórtica tipo B en 3 pacientes, insuficiencia aórtica grave en 2 pacientes y aneurismas crónicos torácicos o abdominales en 5 pacientes. Se identificaron 3 muertes no relacionadas directamente con la progresión de la enfermedad. Conclusiones: En pacientes con síndrome de Marfan y patología de raíz aórtica, el procedimiento de reemplazo de la raíz aórtica con reimplante de la válvula aórtica es la técnica ideal por sus resultados en libertad de reintervención, sobrevida y calidad de vida. Sin embargo, la cirugía no resuelve el compromiso aórtico distal, el cual es el principal factor en la progresión de la enfermedad.

Abstract Introduction: The survival of patients with Marfan syndrome and aortic root involvement has increased over the past decades due to the introduction of valve-sparing aortic root replacement techniques. Objective: To identify and characterize the short- and long-term outcomes of patients with Marfan syndrome managed with aortic root replacement with aortic valve reimplantation (Tirone David procedure). Materials and method: A case series of patients diagnosed with Marfan syndrome who underwent the surgical procedure between 2002 and 2020. Kaplan-Meier curves were created to evaluate aortic reintervention-free time and survival. Results: 18 patients were included, the average age was 29 years; disease progression was identified in 35.3%, determined by reintervention in five patients, three patients had type B aortic dissection, two had severe aortic insufficiency and five had chronic thoracic or abdominal aneurysms. There were three deaths, not directly related to disease progression. Conclusions: In patients with Marfan syndrome and aortic root disease, aortic root replacement with aortic valve reimplantation is the ideal technique due to its results in results in avoiding the need for reintervention and improving survival and quality of life. However, surgery does not resolve distal aortic involvement, which is the main factor in disease progression.

Enzima convertidora de angiotensina homóloga (ECA2) y actividad de ROCK en la falla cardíaca experimental / ACE 2 and ROCK activity in experimental congestive heart failure

Antecedentes: La ECA2 ha mostrado ser un regulador esencial de la funcionalidad cardíaca. En un modelo experimental de insuficiencia cardíaca (IC) con Fier, modelo de coartación de aorta (COA), se encontró activación de la vía Rho-kinasa. La inhibición de esta vía con fasudil no mejoró el remodelado cardíaco ni la disfunción sistólica. Se desconoce en este modelo, si el deterioro de la función cardíaca y activación de la vía rho-kinasa se asocia con una disminución de la ECA2 cardíaca y si la inhibición de Rho-kinasa tiene un efecto sobre la expresión de ECA2. Objetivo: Nuestro objetivo es determinar si en la falla cardaca experimental por coartación aórtica, los niveles proteicos de ECA2 en el miocardio se asocian a disfunción sistólica y cual es su interacción con la actividad de ROCK en el miocardio. Métodos: Ratones C57BL6J machos de 7-8 semanas se randomizaron en 3 grupos experimentales. Grupo COA por anudación de la aorta + vehículo; Grupo COA + Fasudil (100 mg/Kg día) por bomba osmótica desde la semana 5 post-cirugía; y grupo control o Sham. Se determinaron las dimensiones y función cardíaca por ecocardiografía. Posterior a la eutanasia, se determinaron los niveles de ECA2 del VI por Western-blot y actividad de la Rho-kinasa Resultados: En los grupos COA+vehículo y COA-FAS hubo deterioro de la función cardíaca, reflejada por la reducción de la FE (47,9 ± 1,53 y 45,5 ± 2,10, p < 0,05, respectivamente) versus SHAM (68,6 ± 1,19). Además, aumentaron las dimensiones cardíacas y hubo desarrollo de hipertrofia (0,53 ± 0,02 / 0,53 ± 0,01, p < 0,05) medida por aumento de la masa cardíaca relativa respecto del grupo SHAM (0,40 ± 0,01). En los grupos COA+vehículo y COA-FAS se encontró una disminución significativa del 35% en la expresión de ECA2 cardíaca respecto al grupo control. Conclusiones: La disfunción sistólica por coartación aórtica se asocia con aumento de la actividad de Rho-kinasa y significativa disminución de la expresión de ECA2. La inhibición de Rho-kinasa no mejoró el remodelado cardíaco, la disfunción sistólica y tampoco modificó los niveles de ECA2 cardíaca.

Background: ACE2 has been described as an essential regulator of cardiac function. In an experimental model of heart failure (HF) and heart failure reduced ejection fraction (HFrEF), the aortic coarctation (COA) model, activation of the Rho-kinase pathway of cardiac remodeling was found. Inhibition of this pathway did not improve cardiac remodeling or systolic ventricular dysfunction. It is unknown in this model whether the impairment of cardiac function and activation of the rho-kinase pathway is associated with a decrease in ACE2 and whether rho-kinase inhibition has an effect on ACE2 expression. Objective: To determine if in experimental heart failure due to aortic coarctation, ACE2 protein levels in the myocardium are associated with systolic dysfunction and what is its interaction with ROCK activity in the myocardium. Methods: Male C57BL6J mice aged 7-8 weeks were divided into 3 groups and anesthetized: One group underwent COA+ vehicle; A second group COA + Fasudil (100 mg/Kg/d) by osmotic pump from week 5 post-surgery and; the third group, control(SHAM). Echocardiograms were performed to determine cardiac dimensions and systolic function. Rats were then euthanized. Ventricular expression of ACE2, activity of the Rho-kinase pathway by MYPT-1 phosphorylation, relative cardiac mass, area and perimeter of cardiomyocytes were determined by Western blot. Results: In both COA+vehicle and COA+FAS groups there was deterioration of cardiac function, reflected in the reduction of EF (47.9 ± 1.53 and 45.5 ± 2.10, p < 0.05, respectively) versus the SHAM group (68.6 ± 1.19). In addition, cardiac dimensions and hypertrophy increased (0.53 ± 0.02 / 0.53 ± 0.01, p < 0.05) due to increased relative cardiac mass compared to the SHAM group (0.40 ± 0.01). In the COA+vehicle and COA+FAS groups a significant decrease of 35% in cardiac ACE2 expression was found compared to the control group. Conclusions: Systolic dysfunction due to aortic coarctation is associated with increased Rhokinase activity and a significant decrease in ACE2 expression. Rho-kinase inhibition did not improve cardiac remodeling, systolic dysfunction, nor did it change cardiac ACE2 levels.

Impacto de un Heart Team en pacientes con estenosis aórtica candidatos a reemplazo percutáneo / Impact of a Heart Team in patients with aortic stenosis who are candidates for transcatheter aortic valve replacement

RESUMEN La difusión del reemplazo valvular aórtico percutáneo (TAVI) en la estenosis aórtica (EAo) generó la creación de un Heart Team (HT), para elegir el mejor tratamiento. Existen pocos reportes sobre su utilidad. Objetivos: analizar los resultados del tratamiento de los pacientes con EAo evaluados por un HT durante 10 años Material y métodos: Inclusión consecutiva de todos los pacientes con EAo candidatos a TAVI entre enero del 2012 y julio del 2021 para seleccionar el mejor tratamiento, incluyendo además Cirugía de reemplazo valvular aórtico (CRVA) y Tratamiento médico conservador (TMC). Resultados: De 841 pacientes, se asignaron a TAVI 455 (53%), CRVA 213 (24%) y TMC 183 (23%). El porcentaje asignado a TAVI aumentó con el tiempo de 48 a 62% (p < 0,05). Los pacientes que fueron a TAVI, con respecto a los enviados a CRVA, eran mayores (86 ± 7 vs 83 ± 7 años), con mayor EUROSCORE II (6,2, IC95% 5,7-6,6 vs 5,6, IC95% 4,4-6,5) y más frágiles (1,62 ± 1 vs 0,91 ± 1), en todos los casos p <0,01. La sobrevida actuarial (IC 95%) a 1 y a 2 años fue, para TAVI 88% (84-91%) y 82% (77-86%), para CRVA 83% (76-88%) y 78% (70-84%) y para TMC 70% (60-87%) y 59% (48-68%) respectivamente (p <0,001). Conclusiones: Durante los primeros 10 años de establecido un Heart Team para la toma de decisiones en EAo, se asignaron a TAVI aproximadamente la mitad y el resto se asignó por mitades a cirugía u observación. La sobrevida de los pacientes intervenidos fue similar a 2 años y mayor que la de los no intervenidos.

ABSTRACT As transcatheter aortic valve implantation (TAVI) for aortic stenosis (AS) became widespread, the need for a Heart Team (HT) arose to choose the best treatment. There are few reports regarding its usefulness. Objectives: To analyze treatment outcomes in patients with AS evaluated by a HT for 10 years. Methods: Consecutive enrollment of all patients with AS who were candidates for TAVI between January 2012 and July 2021 to choose the best treatment, including surgical aortic valve replacement (SAVR) and conservative medical management (CMM). Results: Out of 841 patients, 455 were assigned to TAVI (53%), 213 to SAVR (24%), and 183 to CMM (23%). The percentage assigned to TAVI has increased from 48% to 62% over time (p <0.05). Patients who underwent TAVI versus those who underwent SAVR were older (86 ± 7 vs. 83 ± 7 years), had a higher EUROSCORE II (6.2, 95% CI 5.7-6.6 vs. 5.6; 95% CI 4.4-6.5) and were frailer (1.62 ± 1 vs. 0.91 ± 1), in all cases p <0.01. Actuarial survival (95% CI) at 1 and 2 years was 88% (84-91%) and 82% (77-86%) for TAVI, 83% (76-88%) and 78% (70-84%) for SAVR, and 70% (60-87%) and 59% (48-68%) for CMM, respectively (p <0.001). Conclusions: For the first 10 years after a Heart Team was established for AS decision-making, approximately half of the patients were assigned to TAVI, and the rest were equally assigned in halves to either surgery or observation. Survival for patients who received interventions was similar at 2 years and higher than in those who did not.

Manejo anestésico perioperatorio en histerectomía total abdominal por fibroma uterino en paciente con estenosis aórtica severa. Presentación de un caso

Se presenta el caso de una paciente de 35 años, femenina, con antecedentes de presentar un soplo desde la infancia y que debía ser intervenida quirúrgicamente por fibroma uterino. El anestesiólogo, durante la consulta preoperatoria, constató el soplo ya mencionado por lo que se decidió posponer la cirugía e interconsultar con un cardiólogo. El examen ecocardiográfico demostró que la paciente era portadora de una estenosis aórtica severa con fracción de eyección conservada, prueba ergométrica: clase funcional I, sin isquemia. Mediante anestesia general orotraqueal, se realizó histerectomía total abdominal sin complicaciones. Es de vital importancia para el anestesiólogo el manejo perioperatorio de la estenosis aórtica.

The case of a 35-years-old female patient with a history of presenting a murmur since childhood and who had to undergo surgery for uterine fibroid is presented. The anesthesiologist, during the preoperative consultation, verified the aforementioned murmur, so it was decided to postpone surgery and consult with a cardiologist. The echocardiographic examination showed that the patient had severe aortic stenosis with preserved ejection fraction, stress test: functional class I, without ischemia. Using orotracheal general anesthesia, a total abdominal hysterectomy was performed without complications. The perioperative management of aortic stenosis is of vital importance for the anesthesiologist.

Infarto de miocardio con elevación del segmento ST inferior y anterior: ¿doble lesión culpable? / Myocardial infarction with elevation of the inferior and anterior ST segment: double artery is the culprit? Pabla Cataldo1 ab

El dolor torácico es uno de los motivos de consulta más frecuente en un servicio de urgencia. Dentro de las hipótesis diagnósticas se deben descartar las patologías de mayor gravedad: el infarto al miocardio (IM), la disección aórtica, el tromboembolismo pulmonar y el neumotórax. El escenario más frecuente es el IM debido a un accidente de placa, pero existen casos en donde la disección aórtica puede verse acompañada de un déficit de perfusión coronaria (síndrome de malaperfusión) generando un IM. Su diagnóstico es difícil, con una mayor mortalidad y complejidad quirúrgica. Presentamos el caso de un hombre de 59 años que cursó con dolor torácico y electrocardiograma con elevación del segmento ST inferior y anterior, derivado a angioplastia primaria y que en el estudio angiográfico se identifica compromiso ostial de coronarias, se sospecha una disección aórtica, confirmándose por angiotomografía computada de aorta, donde se evidencia una disección de aorta ascendente con compromiso de ambos ostium coronarios que se trató quirúrgicamente.

Chest pain is one of the most frequent reasons for consultation in the emergency department. The most severe pathologies must be quickly ruled out within the diagnostic hypotheses: myocardial infarction (MI), aortic dissection, pulmonary thromboembolism, and pneumothorax. A frequent scenario is ST elevation MI due to a plaque accident. However, there are infrequent cases of aortic dissection associated with a deficit in coronary perfusion (malperfusion syndrome) that triggers a MI. The diagnosis of a double artery is difficult, with higher mortality and surgical complexity. We present the case of a 59-year-old man who presented chest pain and an electrocardiogram with inferior and anterior ST-segment elevation who was referred for primary angioplasty. The angiographic study confirmed the presence of a coronary ostium defect and suggested aortic dissection. Computed tomography angiography confirmed the diagnosis, showing the dissection of the ascending aorta with the compromise of both coronary ostia, which was subjected to surgical treatment.

Aortic valve reconstruction surgery with Ozaki technique: initials results from a single center / Cirugía de reconstrucción de válvula aórtica con técnica de Ozaki: resultados iniciales en un centro de referencia

Abstract Background: Aortic valve (AV) replacement is the gold standard treatment for severe symptomatic AV disease. Recently, AV reconstruction surgery (Ozaki procedure) emerges as a surgical alternative with good results in the medium term. Methods: We retrospectively analyzed 37 patients who underwent AV reconstruction surgery between January 2018 and June 2020 in a national reference center in Lima, Peru. The median age was 62 years, interquartile range (IQR: 42-68). The main indication for surgery was AV stenosis (62.2%), in most cases due to bicuspid valve (19 patients, 51.4%). Twenty-two (59.4%) patients had another pathology with surgical indication associated to AV disease, 8 (21.6%) had dilatation of the ascending aorta with indication for replacement. Results: One in-hospital death occurred (1/38, 2.7%) due to perioperative myocardial infarction. There was a significant reduction in the medians of the peak (70 mmHg, CI 95% = 50.03-79.86 vs. 14 mmHg, CI 95% = 11.93-17.5, p < 0.0001) and mean (45.5 mmHg CI 95% = 30.6-49.68 vs. 7 mmHg, CI 95% = 5.93-9.6, p < 0.0001) AV gradients when we compared baseline characteristics with first 30-days results. In an average of 19 (± 8.9) months of follow-up, survival, reoperation-free survival for valve dysfunction, and survival free of AV insufficiency ≥ II were 97.3%, 100% and 91.9%, respectively. Significant reduction in the medians of the peak and mean AV gradients was maintained. Conclusions: AV reconstruction surgery showed optimal results in term of mortality, reoperation-free survival, and hemodynamic characteristics of the neo-AV.

Resumen Introducción: El reemplazo de la válvula aórtica es el tratamiento de elección para la valvulopatía aórtica severa sintomática. Recientemente, la cirugía de reconstrucción valvular aórtica (procedimiento de Ozaki) emerge como una alternativa quirúrgica con buenos resultados a mediano plazo. Métodos: Analizamos retrospectivamente 37 pacientes intervenidos de reconstrucción de válvula aórtica entre enero de 2018 y junio de 2020 en un centro de referencia nacional en Lima, Perú. La mediana de edad fue de 62 años (rango intercuartílico: 42-68). La estenosis de la válvula fue la principal indicación de cirugía (62.2%), en la mayoría de los casos por válvula bicúspide (19 pacientes, 51.4%). 22 (59.4%) pacientes presentaban otra patología con indicación de cirugía, 8 (21.6%) presentaban dilatación de la aorta ascendente con indicación de reemplazo. Resultados: La mortalidad intrahospitalaria fue de 1/38, 2.7%, por infarto de miocardio perioperatorio. Hubo una reducción significativa en las medianas del gradiente máximo (70 mmHg, IC 95% = 50.03-79.86 vs. 14 mmHg, IC 95% = 11.93-17.5, p < 0.0001) y gradiente medio (45.5 mmHg IC 95% = 30.6-49.68 vs. 7 mmHg, IC 95% = 5.93-9.6, p < 0.0001) de la válvula aórtica cuando comparamos las características basales con los resultados de los primeros 30 días. En una media de 19 (± 8.9) meses de seguimiento la sobrevida fue del 97.3%; la sobrevida libre de reoperación por disfunción valvular, 100% y la sobrevida libre de insuficiencia aórtica ≥ II, 91.9%, respectivamente. Se mantuvo una reducción significativa en las medianas de los gradientes máximo y medio de la válvula aórtica. Conclusiones: La cirugía de reconstrucción de válvula aórtica con pericardio autólogo mostró resultados óptimos en términos de mortalidad, supervivencia libre de reoperación y características hemodinámicas de la neo-válvula.