Objective To investigate the correlation between the left atrial hydrodynamic change and atrial fibrillation (AF) in the patients with rheumatic mitral stenosis. Methods According to cardiac rhythm before operation, 49 patients with rheumatic mitral stenosis accompanying chronic AF were divided into two groups,group A: AF, 25 cases; group B: sinus rhythm, 24 cases. Control group : 29 healthy volunteers were examined. By using echocardiography, left atrial hydrodynamics were tested, and repeated 6-8 months after the operation. Results Left atrial stress (LAS), left atriala area (LAA) and left atrial volume(LAV) in group A after operation was much lower than before operation, LAS after operation in group B was also lower than before operation(P lt;0.01). Before operation, LAS in group A was significantly lower than that in group B, LAA and LAVwere larger. After operation, LAA and LAV in group A were significantly larger than those in group B(P lt;0.01). LAS, LAA and LAV in group A and group B before and after operation were higher than those in control group. Conclusion Left atrial hydrodynamic enviroment in patients with mitral stenosis has not reached normal even after valve replacement, LAS may be an important factor of causing AF.
Citation： 唐红,肖锡俊,李嘉. Observation of left atrial hydrodynamic change in patients with rheumatic mitral stenosis. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2004, 11(1): 42-44. doi: Copy