Key result
Optimization of AV delay by surface ECG significantly increased left ventricular ejection fraction compared to nominal AV delay settings (68.2% vs 64.5%, P<0.05).
Why the study?
Does optimization of AV delay by surface ECG improve LV function compared to nominal AV delay in patients with complete AV block and DDD pacemakers?
Observational (n=46)
Does optimization of AV delay by surface ECG improve LV function compared to nominal AV delay in patients with complete AV block and DDD pacemakers?
Absolute Event Rate: 68.2% vs 64.5%
p-value: p=<0.05
Optimization of AV delay using surface ECG is a simple method that significantly improves LV systolic function in patients with complete AV block and dual chamber pacemakers.
No takes yet. Share an insight, caveat, or question.
Should not yet change DDD pacemaker practice; leaves open need for randomized confirmation of ECG-guided AV optimization.
Wu et al. (2006) conducted an observational in Complete or almost complete atrioventricular block (n=46). Optimization of AV delay by surface ECG vs. Nominal AV delay setting was evaluated on Left ventricular ejection fraction (p=<0.05). Optimization of AV delay by surface ECG significantly increased left ventricular ejection fraction compared to nominal AV delay settings (68.2% vs 64.5%, P<0.05).
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