Preliminary study on the relationship between heart rate and failure of biological valve
10.3760/cma.j.issn.1001-4497.2016.12.013
- VernacularTitle:心率与生物瓣膜失功关系的初步探讨
- Author:
Qiuxia SHI
;
Jinsheng XIE
;
Ming JIA
;
Xiaotong HOU
- Keywords:
Bioprosthetic valve;
Failure;
Heart rate
- From:
Chinese Journal of Thoracic and Cardiovascular Surgery
2016;32(12):758-760
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the relationship between heart rate and failure of biological valve,and whether reduce the heart rate could delay the failure of biological valve.Methods Retrospective analysis of 92 bioprosthetic valve replacement cases in our institution from April 1996 to March 2001.The follow-up was carried out through the outpatient service,telephone and letter.The patients were divided into two groups based on the heart rate:Group A:basic heart rate no more than 75 beats per minute;Group B:basic heart rate greater than 75 beats per minute.Blood pressure,heart function,echocardiogram and reoperation rate was collected.Results In group A,the average follow-up time and the longest follow-up time was better than the patients in group B but has no significant difference.Echocardiographic data showed that the proportion of valve leaflets stiffness and calcification in group A was significantly lower than group B(7.7％ vs.17.9％,P ＜0.05).Redo operation rate in group A was lower than those in group B (7.7％ vs.22.6％,P ＜ 0.05).There were only 1 case(1.5 ％) suffering from the tearing in all three valve leaflets in group A while it was 8 cases(8.7％) in group B (2.6％ vs.15.1％,P ＜ 0.05).Conclusion Basic heart rate has a significant effect on the failure of the mitral bioprosthesis.To decrease the basic heart rate can delay the failure of the mitral bioprosthesis and improve the durability.
