The mechanism and correlative factors of SAM syndrome after aortic valve replacement
- VernacularTitle:主动脉瓣置换术后SAM现象机制及相关因素的探讨
- Author:
Jing XU
;
Liliang SHU
;
Wenzeng ZHAO
- Publication Type:Journal Article
- Keywords:
Aortic valve stenosis Heart valve prosthesis implantation Postoperative complications
- From:
Chinese Journal of Thoracic and Cardiovascular Surgery
2003;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the mechanism and correlative factors of SAM syndrome after aortic valve replacement. Methods: 48 patients with severe aortic valve stenosis were studied, echo-Doppler study was performed one week after aortic valve replacement, and the patients were divided into two groups with or without SAM Syndrome. The left ventricular end-diastolic dimensions, the left ventricular end-Systolic dimensions, the left ventricular outflow tract the thickness of septum and posterior wall, the maximal left ventricular velocities and left intra-ventricular dynamic gradients were recorded and compared. Results: There was no operative mortality. The maximal left ventricular velocities were increased significantly in 9 patients (more than 2。5 m/s) and six of them had SAM syndrome. There were statistic significance (P
