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

Abstract

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%)

Cirurgia de preservação da valva aórtica em idosos com estenose aórtica

“…Regarding the curve without thromboembolism and endocarditis in eight years, we found similar results to these authors' studies [5,[20][21]. Analyzing the postoperative PG LV/Ao, we found no differences when compared to the results of Bottio et al [20].…”

“…But when comparing our results with the results of valve replacement, we note similarities. Hospital mortality in some studies ranged from 3.8% to 15% [5,[12][13][15][16][17][18][19]21,22]. The mean of these results was no different from what we found in our study, which was a mortality rate of 6.2%.…”

“…Our results were similar to De Bacco et al's study, which showed a survival of 66.5 +/-8.6. However, the study performed by Aksoyek et al with mechanical prostheses in the elderly showed better results: 66.9 +/-12.1% versus 84.7 +/-6% [5,[20][21].…”

<![CDATA[<B>Ten years experience of aortic valve replacement with aortic homograft root replacement</B>]]>

“…In patients submitted to valve replacement in isolation, including cases of reoperation, the mortality was only 2.6%. These results are comparable to the results of the study by Pomerantzeff et al [12], in which the mortality rate was 4.7 and 12.8% for aortic and mitral-aortic patients with Fisics-Incor prostheses, or the study by Bacco et al [13], in which the immediate overall mortality was 11%, after aortic valve replacement using St Jude MedicalBiocor prostheses. In a metanalysis of publications on patients submitted to aortic valve replacement with homografts, Takkenberg et al [4,5] reported immediate mortality rates that ranged from 2% to 19%.…”