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1.
Rev. Soc. Cardiol. Estado São Paulo, Supl. ; 34(2B): 117-117, abr-jun. 2024.
Article in Portuguese | CONASS, Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1561538

ABSTRACT

INTRODUÇÃO: A válvula aórtica bicúspide (BAV) ocorre em até 6% dos pacientes com estenose aórtica importante. Sua presença pode refletir um desafio para TAVI uma vez que pacientes com BAV podem possuir maiores diâmetros do anel valvar, calcificação acentuada dos folhetos e dilatação da aorta ascendente. O número crescente de TAVI nessa população torna imperativo um aprofundamento na investigação de seus resultados e desfechos clínicos. MÉTODOS: Retrospectivo, unicêntrico e observacional. Realizamos uma revisão de banco de dados e selecionamos pacientes submetidos a TAVI no período de novembro de 2020 a janeiro de 2024. O objetivo deste estudo é avaliar a incidência e resultados imediatos na população com BAV comparativamente aos pacientes com valva tricúspide. Para isso, foram coletados dados clínicos e demográficos, bem como informações sobre complicações e desfechos intrahospitalares após TAVI em ambas as populações, segundo o VARC 3. A análise dos dados foi realizada utilizando estatística descritiva e comparativa (Teste T de Student), com intuito de verificar se há diferenças significativas em desfechos entre as populações. RESULTADOS: De um total de 174 pacientes, 33 deles apresentaram BAV, resultando em uma incidência de 18,96%. A análise estatística não evidenciou diferença significativa nos dados de base de ambas as populações. Média de idade entre o grupo BAV (75,84 ± 8,19 anos) e o grupo tricúspide (78,61 ± 6,32 anos), com um p-valor não significativo de p 0,243. O STS score médio foi de 3,14 ± 1,86% no grupo BAV e 3,47 ± 1,97% no grupo tricúspide; p 0,12. Em relação ao procedimento, houve diferença significativa na necessidade de pré-dilatação entre os grupos, sendo necessária em 25 dos 33 casos de bicúspide (75,75%) e 71 dos 141 casos de tricúspide (50,35%) (p 0,008). Porém, não foi evidenciada diferença significativa no gradiente ventrículo esquerdo e aorta pós-procedimento de 4,53 ± 3,04 vs 5,33 ± 4,46; p 0,233, de bicúspide e tricúspide respectivamente; nem no tempo de permanência hospitalar pós procedimento 2,63 ± 2,11 vs 3,03 ± 4,29; p 0,439. Não foi observado também diferença significativa em relação a necessidade de marcapasso definitivo, refluxo paravalvular ou complicações hemorrágicas e vasculares. CONCLUSÃO: Com base nos resultados, não foi observada diferença significativa nos desfechos entre os pacientes com BAV e tricúspide. Estes achados sugerem que a TAVI é um tratamento seguro e eficaz para pacientes com BAV. No entanto, são necessários estudos adicionais com amostras mais amplas para confirmar esses resultados.


Subject(s)
Humans , Aged , Aged, 80 and over , Transcatheter Aortic Valve Replacement
2.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 33(supl. 2B): 186-186, abr. 2023. ilus
Article in Portuguese | CONASS, Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1438099

ABSTRACT

As obstruções intraventriculares são uma preocupação para os intervencionistas cardíacos antes da implantação da válvula transcateter (TAVI). O ventrículo suicida é uma situação que pode ocorrer quando o gradiente de estenose da válvula aórtica é subitamente eliminado, levando a um colapso hemodinâmico paradoxal devido ao aumento do gradiente intraventricular. ERASH (ablação septal por radiofrequência) é uma técnica publicada recentemente para reduzir o gradiente ventricular por meio da entrega de RF aos segmentos aonde encontra-se a aceleração do fluxo, usando cateteres de eletrofisiologia terapêutica. Conforme publicado antes, a técnica já foi usada com sucesso na cardiomiopatia hipertrófica como procedimento de primeira linha e após uma falha de miectomia. Apresentamos a primeira série de casos do uso de ERASH antes do TAVI para eliminar o gradiente ventricular como forma de diminuir o risco do Ventrículo suicida. RELATO DE CASO: 3 pacientes receberam ERASH previamente ao implante de TAVI e uma como resgate após um procedimento interrompido. A idade dos pacientes foi de 74 anos, 87 anos, 72 anos e 70anos. A Média dos gradientes valvares foi de 60mmhg+-11 e dos gradientes ventriculares de 91,5mmHg (85, 30, 200, 51mmHg). Todas as pacientes possuíam indicação de TAVI previamente por critérios clínicos após discussão em heart team. A ablação do septo foi realizada utilizando cateteres de radiofrequência guiados por ecocardiografia, como uma alternativa à ablação por etanol, conforme protocolo de nossa instituição. Todos os pacientes obtiveram redução para valores de gradiente ventricular inferiores a 20mmHg imediatamente pré TAVI. O implante de TAVI foi realizado após 3 meses na primeira paciente, 1 mês no segundo e terceiro pacientes e 15 dias na quarta paciente. Os quatro pacientes de encontram estáveis, assintomáticos e receberam alta após o implante da TAVI. CONCLUSÃO: Ablação por cateter de radiofrequência é uma solução para tratamento de gradiente intraventricular pré abordagem valvar aórtica como forma de prevenção do ventrículo suicida e tratamento da obstrução sequencial da VSVE.


Subject(s)
Transcatheter Aortic Valve Replacement
3.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 33(supl. 2B): 220-220, abr. 2023.
Article in Portuguese | CONASS, Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1438378

ABSTRACT

Síndrome de takotsubo é uma disfunção miocárdica causada por diversos fatores, como estresse emocional, infecção por COVID, cirurgias e como descrito mais recentemente, ablação de fibrilação atrial. A ablação septal por radiofrequência é uma alternativa a miectomia cirúrgica e ablação por etanol. Em nossa instituição o uso de ablação por cateteres de radiofrequência é utilizado como primeira linha de tratamento para obstruções graves sintomáticas refratarias ao tratamento clinico. As complicações da ablação por radiofrequência incluem embolia, tamponamento pericárdico e aumento paradoxal do gradiente levando a obstrução aguda de via de saída de ventrículo esquerdo. RELATO DO CASO: mulher, 64 anos, portadora de cardiomiopatia hipertrófica obstrutiva com gradiente medioventricular de 78mmHg. Foi submetida a ablação por cateter de radiofrequência guiada por ecocardiografia conforme protocolo institucional (cateter terapêutico com ponta de 8mm até redução de gradiente >25% ou hiperrefringencia característica na região de aceleração do gradiente) com redução aguda do gradiente intraoperatório de 65 para 30mmhg. O termino do procedimento as 17:30, paciente transferida para UTI onde, as 20h apresentou pico hipertensivo durante tentativa de extubação, hematoma no sitio de punção seguida por hipotensão arterial. Realizado ecocardiografia a beira leito as 22h, demonstrando acinesia em região media e apical de VE não observadas na ecocardiografia realizada quatro horas antes. A paciente permaneceu entubada com medidas de suporte (noradrenalina e posteriormente vasopressina por 48h), com melhora progressiva da função ventricular até normalização da função ventricular ao final do terceiro dia. Pelo período prolongado de intubação a paciente desenvolveu pneumonia associada a Ventilação mecânica, evoluindo no 10 dia para óbito por possível obstrução de vias aéreas, associada a choque séptico. CONCLUSÃO: este é o primeiro relato de caso de síndrome de takotsubo como complicação de ablação septal por radiofrequência. Com o aumento das indicações do procedimento é necessário reconhecimento deste potencial complicação pela equipe de terapia intensiva.


Subject(s)
Takotsubo Cardiomyopathy
4.
J. ecocardiography ; 17(3): 138-146, Aug., 20 2019. ilustração, tabela, gráfico
Article in English | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1015794

ABSTRACT

BACKGROUND: Left ventricular diastolic function is an important prognostic marker in acute coronary syndrome. However, classification of the dysfunction grade using isolated echocardiographic parameters remains difficult. Therefore, it is necessary to combine multiple data in diagnostic algorithms. The purpose of this study was to evaluate the capacity of left atrial strain (LAS) components to classify left ventricular diastolic dysfunction (DD) grade. METHODS: Cross-sectional speckle-tracking echocardiography. Patients were divided according to the diastolic dysfunction grade for later association with the LAS. RESULTS: The three LAS components showed moderate correlation with most diastolic variables(left atrial volume index, E/e' ratio and e' wave). In addition, there was related reduction of the LAS, which was inversely proportional to the DD grade (p < 0.05). LAS was effective for the identification of patients with DD grade III [area under the curve (AUC) for the reservoir = 0.99; conduit AUC = 0.89; contraction AUC = 0.99) and also those with DD grade II or III (reservoir AUC = 0.94; conduit AUC = 0.92; contraction AUC = 0.80]. CONCLUSIONS: LAS alone presented excellent capacity to classify DD in patients with acute coronary syndrome and may represent an additional tool for this purpose. (AU)


Subject(s)
Echocardiography , Atrial Function, Left , Ventricular Dysfunction, Left , Acute Coronary Syndrome
5.
J Echocardiogr ; 17(3): 138-146, 2019 09.
Article in English | MEDLINE | ID: mdl-30382559

ABSTRACT

BACKGROUND: Left ventricular diastolic function is an important prognostic marker in acute coronary syndrome. However, classification of the dysfunction grade using isolated echocardiographic parameters remains difficult. Therefore, it is necessary to combine multiple data in diagnostic algorithms. The purpose of this study was to evaluate the capacity of left atrial strain (LAS) components to classify left ventricular diastolic dysfunction (DD) grade. METHODS: Cross-sectional study with 109 consecutive patients admitted to the emergency room with acute coronary syndrome. Patients were referred for echocardiographic evaluation within 72 h. Mean values of LAS, corresponding to three phases of atrial function (reservoir, conduit and contraction), were obtained by speckle-tracking echocardiography. Patients were divided according to the diastolic dysfunction grade for later association with the LAS. RESULTS: The three LAS components showed moderate correlation with most diastolic variables (left atrial volume index, E/e' ratio and e' wave). In addition, there was related reduction of the LAS, which was inversely proportional to the DD grade (p < 0.05). LAS was effective for the identification of patients with DD grade III [area under the curve (AUC) for the reservoir = 0.99; conduit AUC = 0.89; contraction AUC = 0.99) and also those with DD grade II or III (reservoir AUC = 0.94; conduit AUC = 0.92; contraction AUC = 0.80]. CONCLUSIONS: LAS alone presented excellent capacity to classify DD in patients with acute coronary syndrome and may represent an additional tool for this purpose.


Subject(s)
Acute Coronary Syndrome/diagnostic imaging , Angina, Unstable/diagnostic imaging , Atrial Function, Left , Atrial Remodeling , Myocardial Infarction/diagnostic imaging , Ventricular Dysfunction, Left/diagnostic imaging , Acute Coronary Syndrome/physiopathology , Aged , Aged, 80 and over , Angina, Unstable/physiopathology , Cross-Sectional Studies , Diastole , Echocardiography , Female , Humans , Male , Middle Aged , Myocardial Infarction/physiopathology , Prospective Studies , Ventricular Dysfunction, Left/physiopathology , Ventricular Function, Left
6.
Journal of echocardiography ; 17(3): 138-146, Sept. 2018. graf, tab, ilus
Article in English | Sec. Est. Saúde SP, CONASS, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1223493

ABSTRACT

BACKGROUND: Left ventricular diastolic function is an important prognostic marker in acute coronary syndrome. However, classifcation of the dysfunction grade using isolated echocardiographic parameters remains difcult. Therefore, it is necessary to combine multiple data in diagnostic algorithms. The purpose of this study was to evaluate the capacity of left atrial strain (LAS) components to classify left ventricular diastolic dysfunction (DD) grade. METHODS: Cross-sectional study with 109 consecutive patients admitted to the emergency room with acute coronary syndrome. Patients were referred for echocardiographic evaluation within 72 h. Mean values of LAS, corresponding to three phases of atrial function (reservoir, conduit and contraction), were obtained by speckle-tracking echocardiography. Patients were divided according to the diastolic dysfunction grade for later association with the LAS. RESULTS: The three LAS components showed moderate correlation with most diastolic variables (left atrial volume index, E/e' ratio and e' wave). In addition, there was related reduction of the LAS, which was inversely proportional to the DD grade (p< 0.05). LAS was efective for the identifcation of patients with DD grade III [area under the curve (AUC) for the reservoir=0.99; conduit AUC=0.89; contraction AUC=0.99) and also those with DD grade II or III (reservoir AUC=0.94; conduit AUC=0.92; contraction AUC=0.80]. CONCLUSIONS: LAS alone presented excellent capacity to classify DD in patients with acute coronary syndrome and may represent an additional tool for this purpose.


Subject(s)
Echocardiography , Cross-Sectional Studies , Atrial Function , Acute Coronary Syndrome
7.
J Interv Cardiol ; 29(2): 208-15, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26927945

ABSTRACT

OBJECTIVES: To evaluate the mid-term outcomes after percutaneous closure of the secundum atrial septal defects (ASD) using the Figulla-Occlutech device (FOD). BACKGROUND: Transcatheter closure has become the method of choice for most patients with ASD. Although the FOD may have some advantageous characteristics there is a paucity of data on later outcomes after the use of this relatively new device. METHODS: Observational, single arm study including 200 non-consecutive patients who underwent ASD closure between 04/09 and 07/15 in 2 centers. Device performance, deployment technique, and immediate and mid-term outcomes were assessed. RESULTS: Median age and weight were 24 years (4-72) and 58 kg (15-92), respectively. Single defects were observed in 171 patients (median size of 19 mm). The remainder had multiple or multifenestrated defects. Implantation of FOD (median size of 24 mm) was successful in all (99%), but 2 patients (1 with deficient postero-inferior rim; 1 with a large ASD for the size of the child). Embolization with device retrieval occurred in 2 (1%). Median follow-up of 36 months was obtained in 172 patients. Serial echocardiographic assessment showed complete closure in all but 2 patients, in whom an additional small non-significant posterior defect was purposely left untouched. There have been no episodes of late arrhythmias, device embolization, cardiac erosion, endocarditis, thromboembolism, wire fracture, or death. CONCLUSIONS: Transcatheter closure of ASDs in older children, adolescents, and adults using the FOD was highly successful in a wide range of anatomical scenarios with high closure rates and no complications in mid-term follow-up.


Subject(s)
Cardiac Catheterization/methods , Heart Septal Defects, Atrial/surgery , Septal Occluder Device/adverse effects , Adolescent , Adult , Aged , Cardiac Catheterization/adverse effects , Cardiac Catheterization/instrumentation , Child , Child, Preschool , Echocardiography/methods , Female , Follow-Up Studies , Humans , Male , Middle Aged , Retrospective Studies , Treatment Outcome , Young Adult
8.
Int J Cardiovasc Imaging ; 32(5): 729-39, 2016 May.
Article in English | MEDLINE | ID: mdl-26723574

ABSTRACT

Stenting for CoA has become an acceptable treatment modality in the last 20 years. However little is known about arterial changes after this procedure. To assess arterial structure and function including peripheral reactivity and stiffness and intima-media thickness (IMT) pre and post stenting for coarctation of the aorta (CoA). Twenty-one patients [median age: 15 years (8-39)] were studied at baseline, 1 day, 6 months and 1 year after stenting. Twenty-one healthy subjects (1:1 matched) were used as controls. Left ventricular (LV) mass, ejection fraction, flow-mediated dilation (FMD) and nitrate-mediated dilation (NMD) of left brachial artery, common carotid (CC) and right subclavian artery (RSCA) IMT and pulse wave velocity (PWV) were assessed by echocardiography and vascular ultrasound. CoA patients had higher LV indexed mass (p < 0.0001), impaired FMD (p < 0.0001) and NMD (p < 0.0001), increased PWV (p < 0.0001), carotid and RSCA IMT (both p < 0.0001). All procedures were successful and resulted in significant gradient reduction (p < 0.001). One year after stenting there was improvement in LV function (p = 0.034) and although there was significant reduction of LV mass (103.29 ± 24.77 vs. 74.39 ± 22.07 g/m(2), p < 0.0001) values did not normalize. There was no significant change in FMD, NMD, PWV and CC or RSCA IMT. In patients with CoA, arterial reactivity is impaired and LV mass, arterial stiffness and thickness are increased. Although stenting is successful to relieve the obstruction resulting in better LV function and mass reduction, arterial structure and function remains abnormal after 1 year of follow-up.


Subject(s)
Aortic Coarctation/therapy , Brachial Artery , Carotid Arteries , Endovascular Procedures/instrumentation , Stents , Subclavian Artery , Adolescent , Adult , Aortic Coarctation/diagnostic imaging , Aortic Coarctation/physiopathology , Aortography/methods , Brachial Artery/diagnostic imaging , Brachial Artery/physiopathology , Brazil , Carotid Arteries/diagnostic imaging , Carotid Arteries/physiopathology , Carotid Intima-Media Thickness , Child , Computed Tomography Angiography , Echocardiography , Humans , Observer Variation , Predictive Value of Tests , Prospective Studies , Pulse Wave Analysis , Recovery of Function , Reproducibility of Results , Stroke Volume , Subclavian Artery/diagnostic imaging , Subclavian Artery/physiopathology , Time Factors , Treatment Outcome , Ultrasonography, Doppler , Vascular Remodeling , Vascular Stiffness , Vasodilation , Ventricular Function, Left , Young Adult
9.
Int J Cardiovasc Imaging ; 32(5): 729-739, 2016.
Article in English | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1063481

ABSTRACT

Stenting for CoA has become an acceptable treatment modality in the last 20 years. However little is known about arterial changes after this procedure. To assess arterial structure and function including peripheral reactivity and stiffness and intima-media thickness (IMT) pre and post stenting for coarctation of the aorta (CoA). Twenty-one patients [median age: 15 years (8-39)] were studied at baseline, 1 day, 6 months and 1 year after stenting. Twenty-one healthy subjects (1:1 matched) were used as controls. Left ventricular (LV) mass, ejection fraction, flow-mediated dilation (FMD) and nitrate-mediated dilation (NMD) of left brachial artery, common carotid (CC) and right subclavian artery (RSCA) IMT and pulse wave velocity (PWV) were assessed by echocardiography and vascular ultrasound. CoA patients had higher LV indexed mass (p < 0.0001), impaired FMD (p < 0.0001) and NMD (p < 0.0001), increased PWV (p < 0.0001), carotid and RSCA IMT (both p < 0.0001). All procedures were successful and resulted in significant gradient reduction (p < 0.001). One year after stenting there was improvement in LV function (p = 0.034) and although there was significant reduction of LV mass (103.29 ± 24.77 vs...


Subject(s)
Carotid Intima-Media Thickness , Stents , Vasodilation
10.
Rev. bras. cardiol. invasiva ; 22(3): 216-224, Jul-Sep/2014. tab, graf
Article in Portuguese | LILACS-Express | LILACS, Sec. Est. Saúde SP | ID: lil-732779

ABSTRACT

Introdução: O implante por cateter de prótese aórtica (TAVI, do inglês transcatheter aortic valve implantation) constitui tratamento alternativo para pacientes com estenose aórtica de alto risco cirúrgico ou inoperáveis. Para adquirir competência, o grupo multidisciplinar deve receber treinamento específico e acumular experiência na execução do TAVI. Contudo, sua curva de aprendizado não está bem estabelecida. Nosso objetivo foi analisar o impacto da curva de aprendizado na seleção de pacientes, nos aspectos técnicos e nos resultados clínicos do TAVI. Métodos: Estudo observacional e prospectivo dos primeiros 150 pacientes submetidos a TAVI por via femoral, entre janeiro de 2009 e dezembro de 2013 divididos em tercis (n = 50) de acordo com a data do procedimento. Os desfechos foram definidos conforme os critérios Valve Academic Research Consortium-2 (VARC-2). Resultados: A idade foi de 82,5 ± 6,7 anos, sendo 44% homens e 75% em classe NYHA III/IV. O EuroSCORE (24,2 ± 13% vs. 21,2 ± 10,8% vs. 23,4 ± 14,3%) e o STS Score (5,9 ± 2,9% vs. 6,7 ± 4,3% vs. 5,8 ± 3,1%) foram similares entre os grupos. Observou-se redução gradativa nos tempos do procedimento (107,2 ± 48,1 minutos vs. 90,3 ± 42,2 minutos vs. 76,6 ± 37,7 minutos; p < 0,01) e de fluoroscopia (31,3 ± 9,6 minutos vs. 25,4 ± 8,7 minutos vs. 17,2 ± 6,2 minutos; p = 0,01), e no ...


Background: Transcatheter aortic valve implantation (TAVI) is an alternative treatment for high-risk or inoperable patients with aortic stenosis. The multidisciplinary team must undergo specific training and accumulate experience to achieve optimal results. However, its learning curve is not well established. Our objective was to investigate the impact of learning curve on patient selection, technical aspects and clinical outcomes of TAVI. Methods: Observational, prospective analysis of the first 150 patients undergoing transfemoral TAVI between January 2009 and December 2013. Patients were divided into tertiles (n = 50), according to the procedure date. Outcomes were defined according to Valve Academic Research Consortium-2 (VARC-2) criteria. Results: Mean age was 82.5 ± 6.7 years, 44% were male and 75% were in NYHA class III/IV. EuroS-CORE (24.2 ± 13% vs. 21.2 ± 10.8% vs. 23.4 ± 14.3%) and STS Score (5.9 ± 2.9% vs. 6.7 ± 4.3% vs. 5.8 ± 3.1%) were similar between groups. A gradual decrease was observed in procedure times (107.2 ± 48.1 minutes vs. 90.3 ± 42.2 minutes vs. 76.6 ± 37.7 minutes; p < 0.01), fluoroscopy times (31.3 ± 9,6 minutes vs. 25.4 ± 8.7 minutes vs. 17.2 ± 6.2 minutes; p = 0.01) and contrast volume (145.5 ± 70.9 mL vs. 123.2 ± 87.8 mL vs. 101.1 ± 50 mL; p = 0.01). Mortality decreased gradually (20% vs. 10% vs. 4%; p = 0,047), and lower bleeding and moderate-to-severe aortic regurgitation were ...

11.
Rev. bras. ecocardiogr. imagem cardiovasc ; 26(3): 212-215, jul.-set. 2013. ilus
Article in Portuguese | LILACS | ID: lil-683652

ABSTRACT

Criança com 12 anos de idade, encaminhada para ecocardiografia transtorácica e transesofágica 2D e 3D para controle pós-operatório de correção de estenose subaórtica, que evidenciou um grande pseudoaneurisma da fibrosa intervalvar mitro-aórtica, associado à perfuração da base do folheto anterior da valva mitral. Tratava-se de um caso de coartação da aorta (CoAo) neonatal associada à comunicação interventricular (CIV), que necessitou de múltiplas intervenções cirúrgicas na infância devido ao não tratamento adequado das estruturas predisponentes de estenose subvalvar aórtica. Neste relato, são discutidas as particularidades anatômicas que predispõem a lesões obstrutivas esquerdas e a provável causa de desenvolvimento dessas lesões iatrogênicas.


Twelve year-old child referred for echocardiographic evaluation after surgical treatment of subaortic stenosis. Transthoracic and transesofageal (2D and real time 3D) showed a large pseudoaneurysm of the mitral-aortic intervalvular fibrosa associated with a small perforation at the base of the anterior leaflet of the mitral valve. She had neonatal coarctation of the aorta associated with ventricular septal defect and required multiple surgical procedures in infancy due to an inappropriate treatment of the predisposing anatomical structures of subvalvular aortic stenosis. In this report, the mechanisms of these iatrogenic lesions and the abnormal anatomical features that predispose to left sided obstructive lesions are discussed.


Subject(s)
Humans , Child , Aortic Coarctation/surgery , Aortic Coarctation/complications , Heart Septal Defects, Ventricular/surgery , Echocardiography/methods , Aortic Stenosis, Subvalvular/surgery , Aortic Stenosis, Subvalvular/complications , Aneurysm, False/therapy
12.
Rev. bras. ecocardiogr. imagem cardiovasc ; 24(1): 107-111, jan.-mar. 2011. ilus
Article in Portuguese | LILACS, Sec. Est. Saúde SP | ID: lil-571193

ABSTRACT

Anéis vasculares são anomalias congênitas raras, de posição e origem dos vasos da croça aórtica, que podem manifestar-se nos primeiros meses de vida com distúrbios respiratórios ou disfagia. Devido à inespecificidade dos sintomas, os pacientes passam por uma longa investigação diagnóstica até a sua confirmação. Nesse relato, são descritos dois casos de arco aórtico para a direita, com origem aberrante de artéria subclávia esquerda e que foram diagnosticados intraútero, resultando no tratamento cirúrgico no lactente sintomático. São discutidos os aspectos ecocardiográficos chaves para o diagnóstico pré-natal de anéis vasculares.


Subject(s)
Humans , Female , Aorta, Thoracic , Subclavian Artery/abnormalities , Prenatal Care/methods , Prenatal Care , Echocardiography/methods , Echocardiography
13.
Rev. bras. ecocardiogr. imagem cardiovasc ; 22(3): 13-19, jul.-set. 2009. tab
Article in Portuguese | LILACS, Sec. Est. Saúde SP | ID: lil-522520

ABSTRACT

Introdução: A ecocardiografia de estresse com Dobutamina (ECO estresse) é um método acurado para detectar a presença de coronariopatia. Para alguns pacientes o teste é interrompido pela presença de hipotensão sistólica (HS) ou diastólica (HD) cuja etiologia e significado clínico são controversos e é pobre a literatura sobre a hiopotensão diastólica. Objetivo: Avaliar a prevalência, magnetude e implicação clínica da hipotensão sistólica (HS) e diastólica(HD) durante a ecocardiografia de estresse com Dobutamina. Método: Em 3223 pacientes (p) submetidos ao ECO estresse observou-se a presença de HS e/ou HD durante o teste em 977p/3223p (30,3 por cento). Resultados: Ocorreu HS em 312p/977p (31,9 por cento), sendo lenta (queda gradual em dois ou mais estágios >-10mmHg em 88p/312p (28,2 por cento) e brusca(queda acentuada em um estágio >- 20mmHg)...


Subject(s)
Humans , Male , Female , Middle Aged , Echocardiography, Stress/adverse effects , Echocardiography, Stress/methods , Echocardiography, Stress , Hypotension/complications , Hypotension/diagnosis , Dobutamine/therapeutic use
14.
J Am Soc Echocardiogr ; 18(5): 427-34, 2005 May.
Article in English | MEDLINE | ID: mdl-15891752

ABSTRACT

BACKGROUND: This report describes two original echocardiographic approaches to measure right ventricular (RV) mass (RVM). METHODS: In the bullet formula (5/24 pi D1 D2 L), where D1 and D2 are short axes and L the log axis, the RVM is obtained by subtracting the cavity volume from the RV total volume and subsequently multiplying the difference by myocardium density. The second method uses 3 endocardium segments measured at: (1) short axis plane of the aortic valve and left atrium (b1); (2) short axis plane at the midpoint between the tricuspid valve annulus and the apex (b2); and (3) 4-chamber view (h). Those segment lengths are applying in the formula A = [(b1 + b2)/2] x h. The result is multiplied by the wall thickness and by myocardium density. RESULTS: Both formulas were primarily tested in 30 mongrel dogs and have shown good correlation with the true mass ( r = 0.869 with the segments formula and r = 0.819 with the bullet formula). The same method was used in 20 human patients before heart transplant with similar results ( r = 0.810 with the segments formula and r = 0.836 with the bullet formula). CONCLUSIONS: The RVM can be satisfactorily estimated by 2-dimensional echocardiography. The linear regression between the calculated mass (using the smoothest and thinner myocardium thickness) and the actual mass may provide the correction factor for the RVM calculation. Two echocardiographic methods were used to measure right ventricular mass. One of them used a bullet formula variant (5/24 pi D1 D2 L). The second method used 3 endocardium segments measured in 3 2-dimensional echocardiographic planes (short axis of aortic valve and left ventricle, and 4-chamber view), and applied in the formula A = [(b1 + b2)/2] x h. Both formulas have shown good correlation with the true mass in 30 mongrel dogs ( r = 0.869 with the segments formula and r = 0.819 with the bullet formula) and in 20 human patients before heart transplant ( r = 0.810 and r = 0.836, respectively).


Subject(s)
Heart Ventricles/diagnostic imaging , Animals , Dogs , Echocardiography/methods , Linear Models
15.
Article in English | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1064418

ABSTRACT

Background: This report describes two original echocardiographic approaches to measure right ventricular (RV) mass (RVM).Methods: In the bullet formula (5/24 D1 D2 L), where D1 and D2 are short axes and L the log axis, the RVM is obtained by subtracting the cavity volume from the RV total volume and subsequently multiplying the difference by myocardium density. The second method uses 3 endocardium segments measured at: (1) short axis plane of the aortic valve and left atrium (b1); (2) short axis plane at the midpoint between the tricuspid valve annulus and the apex (b2); and (3) 4-chamber view (h). Thosesegment lengths are applying in the formula A [(b1 b2)/2] h. The result is multiplied by the wallthickness and by myocardium density. Results: Both formulas were primarily tested in 30 mongrel dogs and have shown good correlation with the true mass (r 0.869 with the segments formula and r 0.819 with the bullet formula). The same method was used in 20 human patients before heart transplant with similar results (r 0.810 with the segments formula and r 0.836 with the bulletformula).Conclusions: The RVM can be satisfactorily estimated by 2-dimensional echocardiography. The linear regression between the calculated mass (using the smoothest and thinner myocardium thickness) and the actual mass may provide the correction factor for the RVM calculation.Two echocardiographic methods were used to measure right ventricular mass. One of them used a bullet formula variant (5/24 D1 D2 L). The second method used 3 endocardium segments measured in 3 2-dimensional echocardiographic planes (short axis of aortic valve and left ventricle, and 4-chamber view), and applied in the formula A [(b1 b2)/2] h. Both formulas have shown good correlation with the true mass in 30 mongrel dogs (r 0.869 with the segments formula and r 0.819 with thebullet formula) and in 20 human patients before heart transplant (r 0.810 and r 0.836, respectively).


Subject(s)
Dogs , Humans , Aorta , Cardiomegaly , Thoracic Surgery/methods , Ventricular Dysfunction, Right , Echocardiography/methods , Myocardium/pathology , Heart Transplantation
17.
Arq. bras. cardiol ; 70(3): 147-53, mar. 1998. ilus, tab
Article in Portuguese | LILACS | ID: lil-214060

ABSTRACT

OBJETIVO: Analisar a experiência inicial no fechamento percutâneo da comunicaçäo interatrial ostium secundum (CIA OS) com a prótese de amplatzer. MÉTODOS: Sete pacientes foram submetidos ao procedimento através da via venosa anterógrada,orientados pela ecocardiografia transesofágica (ETE) e sob anestesia geral. Uma criança era portadora de 2 CIA e de canal arterial (CA). As CIA medidas pelo ETE variaram de 8,7 a 20mm. Um ecocardiograma transtorácico foi realizado na manhä seguinte do procedimento. RESULTADOS: Oito prótese foram implantados nos 7 pacientes com sucesso. Em um paciente, o CA foi ocluído na mesma sessäo com mola de Gianturco, tendo surgido taquicardia supraventricular durante a oclusäo de uma das CIA, controlada com adenosina. Todos receberam alta hospitalar na manhä seguinte, com oclusäo total dos defeitos. CONCLUSÄO: O procedimento mostrou-se seguro, eficaz e versátil, podendo ser considerado como uma alternativa terapêutica inicial em pacientes selecionados com CIA OS.


Subject(s)
Humans , Heart Septal Defects, Atrial/surgery
18.
Arq. bras. cardiol ; 62(2): 107-111, fev. 1994. ilus
Article in Portuguese | LILACS | ID: lil-148956

ABSTRACT

Two patients with chronic valvular heart disease and myocardial infarction were assisted at our hospital. Both of them were febrile and only one had petechiae associated with signs of valvular involvement led to suspicion of infective endocarditis. Although blood cultures were negative, echocardiographic, surgical and anatomopathologic findings were compatible with infective endocarditis. They required cardiac surgery during the acute phase of the infection because they presented progressive hemodynamic deterioration and no satisfactory response to antimicrobial regimen too. One patient died at late follow-up (two weeks after the hospital discharge) and the other survived, but with signs of cardiac failure (class II of NYHA) one year after the procedure


Subject(s)
Humans , Male , Female , Adolescent , Adult , Endocarditis, Bacterial/complications , Myocardial Infarction/etiology , Electrocardiography , Endocarditis, Bacterial , Endocarditis, Bacterial/physiopathology , Myocardial Infarction , Myocardial Infarction/physiopathology , Coronary Thrombosis/complications
19.
Arq. bras. cardiol ; 61(1): 53-55, jul. 1993. ilus
Article in Portuguese | LILACS | ID: lil-126678

ABSTRACT

Paciente do sexo masculino, seis anos de idade, com quadro clínico e ecocardiográfico compátivel com endocardite infecciosa de valva mitral, apresentou como complicaçäo, pseudoaneurisma embolomicótico da artéria femoral comum direita. Submetido a tratamento cirúrgico com a reconstruçäo arterial, evoluiu satisfatoriamente


Subject(s)
Humans , Male , Child , Aneurysm, Infected/etiology , Endocarditis, Subacute Bacterial/complications , Aneurysm, Infected/surgery , Aneurysm, Infected/diagnosis , Angiography, Digital Subtraction , Embolism/etiology , Femoral Artery/surgery , Mitral Valve Insufficiency/surgery , Mitral Valve Insufficiency/complications , Mitral Valve Insufficiency/diagnosis
20.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 3(3): 22-37, maio-jun. 1993.
Article in Portuguese | LILACS | ID: lil-127715

ABSTRACT

Neste artigo de atualizacao, abordam-se as varias informacoes proporcionadas pelo estudo Doppler-ecocardiografico das valvopatias adquiridas, com enfase especial na doenca mitro-aortica, que e a mais frequentemente observada na clinica


Subject(s)
Humans , Heart Valve Diseases/diagnosis , Echocardiography, Doppler , Aortic Valve Stenosis/diagnosis , Mitral Valve Stenosis/diagnosis
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