AI Article Synopsis
- A study by 15 centers across 8 countries evaluated 1,351 patients who underwent implantation of the Bicarbon bileaflet valve for various heart valve surgeries from 1990 to 1996.
- The results showed an overall low incidence of valve-related complications, with a specifically high 5-year survival rate of 97.2% for aortic valve replacements and acceptable rates for other types of surgeries.
- The Bicarbon valve demonstrated durability, good blood flow characteristics, and a low rate of severe issues, confirming its effectiveness in clinical use.
Article Abstract
Objective: Fifteen collaborating centers in eight countries present their pooled experience with the new Bicarbon bileaflet valve.
Methods: Between 4/90 and 4/96, 1351 patients, 806 males and 545 females, aged 10 to 83, mean 58.4 +/- 12.4, underwent valve implantation.
Operations: aortic valve replacement (AVR), 726; mitral valve replacement (MVR), 475; double valve replacement (DVR), 150. Additional procedures: CABG, 211; TV repair, 64; other, 152.
Results: Mortality: 67 early (seven valve related) and 56 late (40 valve related). Valve thrombosis: six obstructive, three non-obstructive; embolism: nine major cerebral, 37 other. Major bleeding: 29. Hemolysis: two clinically significant. Non-structural dysfunction: 24 paravalvular leaks, one leaflet interference. No structural failure! Endocarditis: 24. Reoperation 48: 22 non-structural dysfunctions, 14 endocarditis, seven thrombosis and embolism, five other. Estimated 5-year freedom from valve-related deaths is 97.2% for AVR and 92.4% for MVR; 4-year freedom from valve related deaths for DVR is 90.5%. Mean calculated NYHA improvement is 1.24.
Conclusions: The Bicarbon mechanical prosthesis is well designed, durable, has good hemodynamic features and an acceptably low incidence of complications.
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| http://dx.doi.org/10.1016/s1010-7940(98)00074-8 | DOI Listing |
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