Characterizations of atrial contractions triggering paroxysmal atrial fibrillation and the effect of atrial fibrillation prevention pacing.
- Author:
Yong-Hong GUO
1
;
Qi-Ming LIU
;
Shu-Shan QI
;
Sheng-Hua ZHOU
Author Information
1. Department of GeriatricsSecond Xiangya Hospital, Central South University, Changsha, China. zhougqin@21cn.com
- Publication Type:Journal Article
- MeSH:
Adult;
Aged;
Atrial Fibrillation;
physiopathology;
prevention & control;
therapy;
Atrial Premature Complexes;
physiopathology;
therapy;
Cardiac Pacing, Artificial;
methods;
Electrocardiography, Ambulatory;
methods;
Female;
Humans;
Male;
Middle Aged
- From:
Journal of Central South University(Medical Sciences)
2007;32(2):337-340
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To evaluate the electrocardiographic characterizations of atrial contractions(AC) triggering paroxysmal atrial fibrillation(AF), and to explore the effects of AF prevention pacing on their electrocardiographic characterizations.
METHODS:Twenty-four patients with the implantation of AF therapy pacemaker(Vitatron 900E) were analyzed by AC triggering paroxysmal AF with Holter monitoring in the study. AC compluing interval, compensatory pause and frequency 2 minutes before the AF or during the AC were compared between the induced paroxysmal AF group and noinduced paroxysmal AF group, and the preventive effect of AF on the post-PAC response program was investigated.
RESULTS:There was significant difference in the AC compluing interval [(352.3 +/-30.4) vs (421.8 42.5)ms], compensatory pause [(963 +/-109) vs (733 +/-124) ms], and frequency [(34.8 +/-18.9) vs (12.7 +/-8.7)/min] 2 minutes before the AF or during the AC in the induced paroxysmal AF group, compared with those in the noinduced paroxysmal AF group (all P<0.05). The AF of 7 patients were controlled by atrial overdrive pacing therapy, 17 patients by post-AC-response or/and post-exercise control therapy, 6 patients by the above therapy combining with cordarone (0.2g/d).
CONCLUSION:AC triggering paroxysmal AF is related to the compluing interval, compensatory pause and frequency 2 minutes before the paroxysmal AF or during the AC, AF prevention pacing may be helpful for the paroxysmal AF induced by AC.
