[Türkçe] | |
Turkish Society of Cardiology Young Cardiologists Bulletin Year: 4 Number: 2 / 2021 |
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Reviewer: Dr. Göksel Çinier Name of the Study: AV junction ablation and cardiac resynchronization for patients with permanent atrial fibrillation and narrowQRS: the APAF-CRT mortality trial Published Congress: ESC 2021 Background: Heart failure (AF) and concomitant atrial fibrillation (AF) poses a distinct challenge for clinicians. Although recent trials demonstrated mortality benefit with AF ablation in this subgroup of patients, best treatment option for those who could not undergo ablation is not known. Objective: The objective of the present study is to compare the efficacy of atrioventricular node ablation (AVJ) plus cardiac resynchronization therapy (CRT) with pharmacological rate control in patients with permanent AF and HF. Methods: Patients with symptomatic permanent AF (>6 months), narrow QRS (<110 ms) and at least one hospitalization for HF randomized either to AVJ+CRT or to pharmacological rate control. The primary endpoint was all-cause mortality. Results: Overall, 133 patients were randomized to either group. At interim analysis after a median of 29 months, primary endpoint occurred in 7(11%) and 20 (29%) patients in AVJ + CRT and pharmacological rate control groups respectively ([hazard ratio (HR) 0.26, 95% confidence interval (CI) 0.10–0.65; P = 0.004]. The benefit was consistent for those with LVEF <35% and > 35%. Conclusion: Compared to rate control, AVJ+CRT was superior in reducing mortality among patients with HF and permanent AF. Interpretations: APAF-CRT trial expanded the evidence that watchful waiting may not be the best options for patients with symptomatic AF (either paroxysmal, persistent or permanent) and HF. Either ablation for AF itself or for AV node should be preferred for reducing mortality. |
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