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2.
Rev. bras. cir. cardiovasc ; 34(5): 630-632, Sept.-Oct. 2019. tab
Article in English | LILACS | ID: biblio-1042050

ABSTRACT

Abstract Heyde syndrome manifests as aortic stenosis associated with gastrointestinal bleeding. We describe the case of a 64-year-old man who came to the emergency room due to acute heart failure and intermittent gastrointestinal bleeding. Treatment involves initial correction of anemia and heart failure followed by aortic valve replacement. The prosthesis used depends on the characteristics of each patient and valve replacement allows the resolution of bleeding in most cases. Gastrointestinal bleeding in patients with aortic stenosis is associated with severity of the valve obstruction. A mechanical prosthesis was used with no recurrent bleeding even with the need for lifelong anticoagulation therapy.


Subject(s)
Humans , Male , Middle Aged , Aortic Valve Stenosis/surgery , Heart Valve Prosthesis Implantation/methods , Gastrointestinal Hemorrhage/surgery , Syndrome , Treatment Outcome
3.
Rev. bras. cir. cardiovasc ; 33(1): 64-71, Jan.-Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-897989

ABSTRACT

Abstract Objective: To compare the perioperative incidence rates of hemolysis and inflammatory response in patients undergoing coronary artery bypass grafting with the two main types of cardiopulmonary bypass, centrifugal and roller pumps, and establish correlations among hemolytic and inflammatory changes. Methods: This was a prospective, randomized trial of 60 patients assigned to either roller pump (G1, n=30) or centrifugal pump (G2, n=30) bypass. Markers of hemolysis (serum haptoglobin, lactate dehydrogenase [LDH]) and inflammation (interleukin [IL]1ß, IL-6, and TNF-α) were measured and analyzed. Results: There was no significant between-group difference in the variables of interest. In G1, there was a positive association with IL-6 and TNF-α (P<0.01 and P<0.05, respectively). In G2, there was a positive association with LDH in the postoperative period (P<0.5). At 24h post-cardiopulmonary bypass, there were positive associations between LDH and IL-1ß (P<0.05), LDH and TNF-α (P<0.01), haptoglobin and TNF-α (P<0.05), and LDH and TNF-α (P<0.01) in G1, and between LDH and IL-6 (P<0.01), LDH and TNF-α (P<0.01), and LDH and IL-6 (P<0.01) in G2. Conclusion: There were no significant between-group differences in markers of hemolysis or inflammation. IL-6 and TNF-α were positively associated with duration of cardiopulmonary bypass in G1, while LDH was positively associated with duration of cardiopulmonary bypass in G2. The rate of significant associations between markers of hemolysis and inflammation was higher in the roller pump group (G1). Registration number: ReBEC (RBR-92b9dg).


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Cardiopulmonary Bypass/methods , Extracorporeal Circulation/methods , Hemolysis , Inflammation/etiology , Biomarkers/blood , Cardiopulmonary Bypass/adverse effects , Incidence , Prospective Studies , Extracorporeal Circulation/adverse effects , Perioperative Period
4.
Rev. bras. cir. cardiovasc ; 32(5): 347-353, Sept.-Oct. 2017. tab, graf
Article in English | LILACS | ID: biblio-897948

ABSTRACT

Abstract Introduction: The pacemaker implantation VDD is considered simpler, faster, less expensive and causes fewer complications compared to DDD. However, the VDD pacemaker has not been widely used in many centers, perhaps for fear of dysfunction of the sinus node and the reduction of atrial sensitivity by the pacemaker during follow-up after implantation. Objective: To compare patients with DDD and VDD pacemakers regarding the evolution of chronic atrial fibrillation (AF) and length of stay outside this postoperative arrhythmia. Methods: It was included 158 patients with dual chamber pacemakers, 48 DDD and 110 VDD. Follow-up period: between January 1, 1999 and December 31, 2015. The mean follow-up of patients with DDD was 5.35 years and the VDD, 4.74 years. The percentage of each group (DDD and VDD) which evolved to AF during follow-up was assessed. Also, it was made an actuarial study with the respective curves indicating the time free from AF for each group. Patients were classified according to the diagnosis that led to pacemaker implantation and the degree of heart failure. Results: The percentage of patients who developed AF was higher in DDD group (10.42%) than in VDD group (6.36%), but without statistical significance. Patients with DDD and VDD remained free of AF for similar period. Conclusion: Considering the results, the VDD pacemaker continues to be a good option to the DDD for routine use in cases properly indicated.


Subject(s)
Humans , Male , Female , Atrial Fibrillation/therapy , Cardiac Pacing, Artificial/methods , Time Factors , Actuarial Analysis , Follow-Up Studies
5.
Rev. bras. cir. cardiovasc ; 25(4): 457-465, out.-dez. 2010. ilus, tab
Article in Portuguese | LILACS | ID: lil-574740

ABSTRACT

INTRODUÇÃO: Dados da literatura sugerem que as taxas de tromboembolismo e sangramento em pacientes com próteses valvares cardíacas mecânicas podem ser muito reduzidas se a terapia anticoagulante for otimizada. OBJETIVOS: Avaliar a ocorrência de complicações em portadores de próteses valvares cardíacas mecânicas submetidos à terapêutica anticoagulante, otimizada por meio de ambulatório especializado. MÉTODOS: Estudou-se a ocorrência de complicações ao longo de 10 anos em 261 pacientes com próteses valvares cardíacas mecânicas, anticoagulados e acompanhados em ambulatório especializado. Esses pacientes foram divididos em dois grupos conforme porcentual de consultas com tempo de protrombina (RNI) dentro do intervalo desejado: G1-0 por cento a 50,00 por cento e G2-50,01 por cento a 100 por cento das consultas. Foram avaliadas as ocorrências de complicações tromboembólicas e hemorrágicas na sua totalidade, ou subdivididas em maiores e menores, de acordo com a gravidade. Os resultados estão apresentados sob forma de estudo atuarial e de frequência linearizada de ocorrência de eventos. RESULTADOS: O estudo atuarial mostrou que, ao longo do tempo, no grupo G2 (com 50,01 por cento a 100 por cento das consultas com a RNI no intervalo desejado) maior número de pacientes esteve livre da ocorrência de qualquer tipo de evento, de eventos hemorrágicos menores ou da elevação exacerbada da RNI. As frequências linearizadas de ocorrência, em todos os tipos eventos, também foram menores nos pacientes do grupo G2. CONCLUSÕES: O tempo de permanência dentro do intervalo de anticoagulação desejado está diretamente relacionado com a ocorrência de complicações. Entretanto, mesmo com acompanhamento otimizado por meio de ambulatório especializado, apenas cerca de um terço dos pacientes apresentaram nível de anticoagulação adequado em mais da metade das consultas.


BACKGROUND: Published data suggest that rates of thromboembolism and bleeding, in patients with mechanical heart valve prostheses, can be very small by optimizing current anticoagulant therapy. OBJECTIVE: To evaluate the occurrence of complications in patients with mechanical heart valve prostheses undergoing anticoagulant therapy optimized through specialized clinics. METHODS: We studied the occurrence of complications over 10 years in 261 anticoagulated patients with mechanical heart valve prostheses, followed in specialized clinics. These patients were divided into two groups according to percentage of queries with prothrombin time (INR) within the desired range: G1-0 percent to 50.00 percent and G2-50.01 percent to 100 percent of appointments. We evaluated the occurrence of thromboembolic and bleeding complications in their entirety or subdivided into major and minor, according to gravity. The results are presented in an actuarial study and frequency of occurrence of linear events. RESULTS: The actuarial study showed that, over time, more G2 (with 50.01 percent to 100 percent of the consultations with INR in desired range) more patients were free of the occurrence of any event, of minor bleeding events or the marked increase of RNI. The linearized frequency of occurrence in all types events, were also lower in group G2. CONCLUSIONS: The period of time that patients that remain within the desired anticoagulation interval has directly relations with occurrence of complications. Even with careful follow-up at a specialized outpatient unit, only approximately one third of the patients showed an adequate anticoagulation level in more than half of the consultations.


Subject(s)
Adult , Female , Humans , Male , Anticoagulants/therapeutic use , Heart Valve Prosthesis/adverse effects , Prothrombin Time , Postoperative Hemorrhage/epidemiology , Thromboembolism/epidemiology , Administration, Oral , Follow-Up Studies , International Normalized Ratio , Postoperative Hemorrhage/etiology , Time Factors , Thromboembolism/etiology
6.
Botucatu; s.n; 2006. 174 p. tab, graf.
Thesis in Portuguese | LILACS | ID: lil-468601

ABSTRACT

Estudo realizado, com base nos dados do ambulatório, para controle de anticoagulação nos pacientes portadores de próteses valvares cardíacas mecânicas do Serviço de Cirurgia Cardiovascular do Hospital das Clínicas da Faculdade de Medicina de Botucatu, no intervalo de dez anos, com os objetivos: avaliação da resposta à terapêutica profilática anticoagulante; quantificação das complicações tromboembólicas e hemorrágicas, com estratificação de sua gravidade; comparação entre tipos de anticoagulantes orais, doses e efeitos; influência da posição da prótese; presença de fibrilação atrial e tamanho do átrio esquerdo; e análise da estratégia de anticoagulação adotada. Foram incluídos, no estudo, 259 pacientes portadores de próteses mitrais (mitrais), aórticas (aórticos) e mitral e aórticas (mitro-aórticos). Foram analisadas 9714 consultas com valores do tempo de protrombina (em RNI) e dados dos registros hospitalares sobre complicações tromboembólicas e hemorrágicas com graus de gravidade. Os pacientes foram divididos em quatro grupos de acordo com o porcentual de consultas em que a RNI se encontrava dentro do intervalo desejado. Foram estudados dois anticoagulantes (Fenprocumona e Warfarina) e suas dosagens. Foi, também, avaliada a ocorrência de complicações tromboembólicas e hemorrágicas. Os resultados estão apresentados em: número de pacientes com complicações, estudo atuarial e frequência linearizada de ocorrência de eventos.


Subject(s)
Humans , Male , Female , Adult , Anticoagulants/administration & dosage , Heart Valve Prosthesis/statistics & numerical data
7.
Acta cir. bras ; 18(5): 431-437, set.-out. 2003. ilus, tab
Article in Portuguese | LILACS | ID: lil-353578

ABSTRACT

OBJETIVO: Observar o comportamento da sutura arterial em aortas abdominais de coelhos em crescimento, comparando-se as técnicas contínua e com pontos separados, empregando-se dois tipos de fios: Polipropilene 7-0 (inabsorvível) e Polidioxanone 7-0 (absorvível). MÉTODOS: Grupos: GI - Controle (sem sutura); GII - Polipropilene, Pontos Separados; GIII - Polipropilene, Contínua; GIV - Polidioxanone, Pontos Separados e GV - Polidioxanone, Contínua. Cada grupo foi subdividido em quatro Momentos de Eutanásia: aos 7, 14, 30 e 60 dias de pós-operatório. Foram avaliados: peso dos animais, diâmetros e pulsos arteriais, estenose, trombose, aderências, aortografia, visibilidade do fio, cicatrizaçäo e microscopia. RESULTADOS: a) após 60 dias, o local da linha de sutura cresceu de forma significativa em todos os grupos; b) a técnica de sutura com pontos separados causou menor estenose da linha de sutura, observada tanto no ato cirúrgico, como na eutanásia dos animais; c) no exame histopatológico, as diferenças encontradas entre grupos foram transitórias, näo persistindo após 60 dias de pós-operatório. CONCLUSÄO: O polidioxanone mostrou ser a melhor opçäo, entre os dois fios, para sutura de artérias em crescimento, pois causa pouca ou nenhuma restriçäo ao crescimento arterial na linha de sutura, mesmo quando se emprega a técnica contínua


Subject(s)
Animals , Male , Rabbits , Aorta, Abdominal , Polydioxanone , Polypropylenes , Suture Techniques , Aorta, Abdominal , Constriction, Pathologic
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