Estudo multicêntrico dos resultados das trocas valvares com o uso da bioprótese Biocor no Estado de Minas Gerais

Vrandecic, Mário Osvaldo; Filho, Bayard Gontijo; Silva, João Alfredo Paula e; Fantini, Fernando Antônio; Barbosa, Juscelino Teixeira; José, Márcio C São; Pinto, Carlos Álvaro dos Santos; Vieira, Gilberto Lino; Oliveira, Homero Geraldo de; Rabelo, Renato R; Rabello, Sebastião Correa; Brick, Alexandre Visconti; Peredo, Eduardo; Pedrosa, Adelson A; Sobrinho, Antônio Luiz O Azevedo; Barbosa, Maurício de Rezende; Miotto, Heberth César; Braga, Maria Aparecida; Salum, Marco Antônio; Braga, Júnia F; Moreira, Guilherme H; Moreira, Osvald Hely; Oliveira, Carlos Alberto de; Maciel, Flávio

doi:10.1590/s0102-76381988000300002

Cited by 5 publications

(6 citation statements)

References 20 publications

(1 reference statement)

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“…Initial tests in a pulse simulator identified the possibility of early structural failure [10], but changes in the project and in the technique of tissue preparation gave favorable hemodynamic and clinical results [11,12]. Their use in Brazil was publicized by Braile et al [13] and the St Jude Medical-Biocor TM prosthesis (SJM-Biocor TM ) was introduced in 1982 [14]. This model incorporates structural changes in the pericardial membrane that give a better durability and a satisfactory hemodynamical result [6].…”

Section: Introductionmentioning

confidence: 99%

Bioprótese valvar de pericárdio bovino St Jude Medical-Biocor: sobrevida tardia

Bacco¹,

Sant'Anna²,

Sant’Anna³

et al. 2005

Rev Bras Cir Cardiovasc

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Methods: From 1992 to 2000, 304 patients were discharged from hospital after bioprosthesis implantation. Ages ranged from 15 to 83 years (mean: 60.6 ± ± ± ± ± 14.3 years) and 50.3% were male. Patient deaths and events related to bioprosthesis (infection, thromboembolism and structural failure) were considered for estimation of cumulative probability of survival and event-free survival.Results: Total follow-up was 931.0 patients-year. During follow-up there were 28 (9.2%) deaths. Causes were bioprosthesis failure in five (1.6%), cardiac in seven (2.3%), non-cardiac in four (1.3%), and unknown in 12 (3.9%) patients. Events related to bioprosthesis were: endocarditis: 18 (5.9%), fibrocalcific degeneration: 15 (4.9%), thromboembolism: three (1.0%), hemolysis: one (0.3%). Bioprosthesis dysfunctions resulted in 16 (5.2%) reoperations due to fibrocalcific degeneration (nine), endocarditis (six) and thromboembolism (one). Probability of survival was higher in the young population (< 40 years, n=35) when compared to the older group (> 60 year, n=187): 82.0 ± ± ± ± ± 13.3% vs. 58.8 ± ± ± ± ± 13.6% in the 9 th year. Event-free survival was 77.5 ± ± ± ± ± 3.7% for 5 th year and 40.2 ± ± ± ± ± 9.0% for 10 th year. 424BACCO, FW ET AL -St Jude Medical-Biocor bovine pericardial bioprosthesis: long-term survival Braz J Cardiovasc Surg 2005; 20(4): 423-431 Resultados: Em um seguimento total de 931,0 pacientesano, ocorreram 28 (9,2%) óbitos tardios, sendo cinco (1,6%) relacionados à bioprótese, sete (2,3%) cardíacos, quatro (1,3%) não-cardíacos e 12 (3,9%)

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Section: Introductionmentioning

confidence: 99%

Bioprótese valvar de pericárdio bovino St Jude Medical-Biocor: sobrevida tardia

Bacco¹,

Sant'Anna²,

Sant’Anna³

et al. 2005

Rev Bras Cir Cardiovasc

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show abstract

Section: Introductionmentioning

confidence: 99%

<![CDATA[St Jude Medical-Biocor bovine pericardial bioprosthesis: long-term survival]]>

Bacco¹,

Sant'anna²,

Sant’Anna³

et al. 2005

Braz. j. cardiovasc. surg.

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The objective of this work is to present longterm results of valve replacement using SJM-Biocor TM bovine pericardial bioprostheses. Methods: From 1992 to 2000, 304 patients were discharged from hospital after bioprosthesis implantation. Ages ranged from 15 to 83 years (mean: 60.6 ± ± ± ± ± 14.3 years) and 50.3% were male. Patient deaths and events related to bioprosthesis (infection, thromboembolism and structural failure) were considered for estimation of cumulative probability of survival and event-free survival. Results: Total follow-up was 931.0 patients-year. During follow-up there were 28 (9.2%) deaths. Causes were bioprosthesis failure in five (1.6%), cardiac in seven (2.3%), non-cardiac in four (1.3%), and unknown in 12 (3.9%) patients. Events related to bioprosthesis were: endocarditis: 18 (5.9%), fibrocalcific degeneration: 15 (4.9%), thromboembolism: three (1.0%), hemolysis: one (0.3%). Bioprosthesis dysfunctions resulted in 16 (5.2%) reoperations due to fibrocalcific degeneration (nine), endocarditis (six) and thromboembolism (one). Probability of survival was higher in the young population (< 40 years, n=35) when compared to the older group (> 60 year, n=187): 82.0 ± ± ± ± ± 13.3% vs. 58.8 ± ± ± ± ± 13.6% in the 9 th year. Event-free survival was 77.5 ± ± ± ± ± 3.7% for 5 th year and 40.2 ± ± ± ± ± 9.0% for 10 th year. Overall estimative of structural failure for a SJM-Biocor TM was 5% in 5 th year increasing to 20% in the 10 th year. In the aortic position the values were zero and 8%, respectively. Considering current clinical conditions, 88.5% are in NYHA class I, 9.1% in class II and 2.3% in class III. Conclusions: SJM-Biocor TM bovine pericardial bioprostheses resulted in satisfactory survival of patients, related to low prevalence of bioprosthesis dysfunction. Descriptors: Bioprosthesis. Heart valve prosthesis. Heart valves. Resumo Objetivo: Nosso objetivo é apresentar resultados a longo prazo da subsituição valvar por bioprótese de pericárdio bovino SJM-Biocor TM. Método: Entre 1992 e 2000, tiveram alta hospitalar, após substituição valvar por bioprótese de pericárdio bovino SJM-Biocor TM 304 pacientes. Idades eram de 15 a 83 anos (média: 60,6± ± ± ± ±14,3), sendo 50,3% do sexo masculino. Pacientes tiveram situação clínica atualizada e análise atuarial foi empregada no cálculo da sobrevida simples e livre de eventos.

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“…It can be observed in most of existing publications that the risk of reoperation begins to grow after 10 years of surgery to implant of valve substitute, probably due to dysfunction of the prosthesis, and increases progressively over time, decreasing with advancing age [17,24,26,32,[36][37][38][39][40][41][42]. In this cohort, a trend was observed for reoperation after 10 years of follow-up (P=0.057), which is probably at the borderline sample descriptive level.…”

Section: Reoperationmentioning

confidence: 71%

Resultados de pacientes submetidos à cirurgia de substituição valvar aórtica usando próteses mecânicas ou biológicas

Almeida

Picon

Wender

2011

Rev Bras Cir Cardiovasc

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Resultados de pacientes submetidos à cirurgia de substituição valvar aórtica usando próteses mecânicas ou biológicasOutcomes of patients subjected to aortic valve replacement surgery using mechanical or biological prosthesesThis study was carried out at Clinics Hospital of Porto Alegre, Porto Alegre, RS, Brazil. AbstractObjective: This paper evaluates outcomes in patients subjected to surgery for replacement of the aortic valve using biological or mechanical substitutes, where selection of the type of prosthesis is relevant.Methods: Three hundred and one patients, randomly selected, who had been subjected to aortic valve replacement surgery between 1990 and 2005, with a maximum follow-up period of 20 years.Results: Survival at 5, 10 and 15 years after surgery using mechanical substitute was 83.9%, 75.4% and 60.2% and, for biological substitute, was 89.3%, 70.4% and 58.4%, respectively (P=0.939). Factors associated with death were: age, obesity, pulmonary disease, arrhythmia, bleeding and aortic valve failure. Probability free of reoperation for these patients at 5, 10 and 15 years after surgery using mechanical substitute was 97.9%, 95.8% and 95.8% and, for those using bioprostheses, was 94.6%, 91.0% and 83.3%, respectively (P=0.057). Factors associated with reoperation were: renal failure, prosthesis endocarditis and age. Probability free of bleeding events at 5, 10 and 15 years after surgery using mechanical substitute was 94.5%, 91.7% and 91.7% and, for bioprostheses, was 98.6%, 97.8% and 97.8%, respectively (P=0.047). Factors associated with bleeding events were: renal failure and mechanical prostheses.Conclusions: The authors have concluded that: 1) mortality was statistically similar in the groups; 2) patient characteristics at baseline were a major determinant of late mortality after surgery; 3) there was a tendency toward reoperation in the bioprostheses group; 4) patients using mechanical prosthesis had more bleeding events as time passed; 5) data presented in this paper is in accordance with current literature. Descriptors 327Almeida AS, et al. -Outcomes of patients subjected to aortic valve replacement surgery using mechanical or biological prostheses Bras Cir Cardiovasc 2011;26(3):326-37 Rev

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Estudo multicêntrico dos resultados das trocas valvares com o uso da bioprótese Biocor no Estado de Minas Gerais

Cited by 5 publications

References 20 publications

Bioprótese valvar de pericárdio bovino St Jude Medical-Biocor: sobrevida tardia

Bioprótese valvar de pericárdio bovino St Jude Medical-Biocor: sobrevida tardia

<![CDATA[St Jude Medical-Biocor bovine pericardial bioprosthesis: long-term survival]]>

Resultados de pacientes submetidos à cirurgia de substituição valvar aórtica usando próteses mecânicas ou biológicas

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