Comparison of cardiac synchronization and tricuspid regurgitation with or without leadless pacemaker pacing in different site
Right ventricular pacing might lead to pacing-induced cardiomyopathy by dyssynchrony and tricuspid regurgitation. Pacing at various sites had different effects on synchrony and tricuspid regurgitation. This study is to observe the effect of leadless pacemaker implantation in different regions on ventricular synchronization and tricuspid regurgitation. Ultrasound and ECG parameter indices are applied.
Study Type
OBSERVATIONAL
Enrollment
40
To observe the effect of pacemaker implantation at different sites on cardiac synchronization and tricuspid regurgitation
Yi zhou XU
Hangzhou, Zhejiang, China
RECRUITINGThe evaluation of cardiac electrical synchrony
the QRS duration after pacing
Time frame: 1 month
The evaluation of cardiac mechanical synchrony
①Synchronization analysis between left and right ventricles: interventricular mechanical delay (IVMD) in millisecond. ②Left ventricle synchrony analysis: septal-to-posterior wall motion delay (SPWMD) in millisecond，left pre-ejection interval(LPEI) in millisecond.
Time frame: 1 month
Age may affect synchronization
Age in years
Time frame: 1 month
BMI may affect synchronization
BMI in kg/m\^2
Time frame: 1 month
Blood pressure may affect synchronization
Systolic and diastolic blood pressure in mmHg
Time frame: 1 month
The pacemaker sensing may affect synchronization
pacemaker sensing in millivolt
Time frame: 1 month
The pacemaker lead impedance may affect synchronization
lead impedance in ohm
Time frame: 1 month
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