Effects of metoprolol on heart pacing threshold value and endocardial electrical signal amplitude in patients with permanent pacemakers
- VernacularTitle:美托洛尔对安装永久心脏起搏器患者的心房和心室起搏阈值与心脏内电信号波幅的影响
- Author:
Shubin JIANG
;
Chunshan LI
;
PAERHATI
;
Zhongdong WU
;
Zhengrong GE
;
Xiufen LI
;
- Publication Type:Journal Article
- Keywords:
Adrenergic beta-antagonists;
Pacemaker,artificial;
Bradycardia
- From:
Chinese Journal of Interventional Cardiology
1996;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
60 kg) was given to all the patients 1-3 days after their operation.The pacing threshold and the amplitude of P and R waves on cardiograph were measured before injection and at 10,30,90,180 minutes afterwards.Results No significant changes were oburved in pacing threshold and the amplitade of P and R waves before and after the injection of metoprolol in patients with either newly implanted or replacement of permanent pacemakers.Conclusion Metoprolol tartrate has no effect on atrial and ventricular pacing threshold and the amplitude of P and R waves in patients with permanent pacemakers implantation.
