Long-term Follow-up Study of Ascending Aortic Diameter Changes in Patients After Mechanical Aortic Valve Replacement
10.3969/j.issn.1000-3614.2016.03.015
- VernacularTitle:主动脉瓣机械瓣置换术后远期升主动脉内径变化随访研究
- Author:
Jinping ZHANG
;
Yong JIANG
;
Weichun WU
;
Jiande WANG
;
Nan XU
;
Jianrong LI
;
Hao WANG
- Publication Type:Journal Article
- Keywords:
Heart valve prosthesis implantation;
Echocardiography;
Follow-up study
- From:
Chinese Circulation Journal
2016;31(3):267-271
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To retrospectively analyze the ascending aortic diameter (AAD) changes in patients after mechanical aortic valve replacement (AVR).
Methods: The medical records and echocardiography reports in patients who received AVR or bivalve valve replacement (BVR) in our hospital from 2000-01 to 2001-12 were retrieved, the retrieval conditions were as aortic valve structure must be mechanical and the follow-up echocardiography examination should be more than 9 years. The clinical information, pre- and post-operative 2-dimentional transthoracic echocardiography reports were collected, the follow-up echocardiography periods were ≤3-year, 3-year<-≤6-year, 6-year<-≤9-year and >9-year. AAD changes at different periods were compared. According to baseline AAD, the patients were divided into AAD<35 mm group and AAD≥35 mm group in order to observe the ascending aortic events.
Results: A total of 141 patients were enrolled form 595 echocardiography reports which included 75 male, the patients were at the mean age of (45.5 ± 11.2) years with mean follow-up time of (7.59 ± 3.38) years. Compared with baseline level, the follow-up AAD was similar between ≤3-year and 3-year<-≤6-year patients,P>0.05; while the follow-up AAD was different between 6-year<-≤9-year and >9-year patients,P<0.05. The patients with second operation in AAD≥35 mm group were much higher than those in AAD<35 mm group (24.0% vs 12.9%). There were 5 (20%) patients suffered from ascending aortic events in AAD≥35 mm group.
Conclusion: AAD dilatation were gradually occurring after mechanical AVR, the patients with AAD≥35 mm had the higher risk for ascending aortic events, therefore special attention should be taken in patients with aortic valve disease combining AAD dilatation during surgical treatment.
