Study on Electrophysiological Properties of Atrial and Atriovent ricular Node in Patients with Paroxysmal Atrial Fibrillation
- VernacularTitle:阵发性心房颤动者心房内及房室结电生理特性
- Publication Type:Journal Article
- From: Journal of Sun Yat-sen University(Medical Sciences) 2001;22(1):51-53
- CountryChina
- Language:Chinese
- Abstract: 【Objective】 To compare the difference of electrophy siological properties in atrial and atrioventricular node between patients with paroxysmal atrial fibrillation and normal adults, and to study the initiation ra te of atrial fibrillation in the two groups. 【Methods】 The electrophysiologica l preperties were detected by the technique of esophagus-atrial program pacing in 182 patients with paroxysmal atrial fibrillation and 30 normal adults. 【Resu lt】 ①The initiation rate of atrial fibrillation by the technique of esophagus -atrial pacing was 95.6%; ②In the state of normal sinus rhythm and in basic c ycle length, There was no difference in atrial and A-V node conduction function between the two groups; ③The atrial effective refrectory period (ERPA) was s ignificantly shortened and both atrial relative refrectory period (RRPA) and i ntra-atrial conduction delay (IACD) were significantly lengthened in the atrial fibrillation group when compared with the control group by using premature impu lse. 【Conclusion】 ①In patients with atrial fibrillation, the abnormalities of electrophysiological property would favor the development of micro-circus move ment; ②The esophagus-atrial pacing may be the useful method for identifing the clinical diagnosis of suspected atrial fibrillation but short of evidence of el etrocardiogram.