کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5971530 | 1576184 | 2014 | 6 صفحه PDF | دانلود رایگان |
- 3Â + SAECG predicts worse prognosis when ARVC is suspected.
- 3Â + SAECG predicts even worse prognosis in definite ARVC.
- Non-definite ARVC patients have excellent prognosis if they have no 3Â + SAECG.
- SAECG should be valuable in the risk stratification of ARVC.
BackgroundSignal averaged electrocardiogram (SAECG) is a specific and non-invasive tool useful for arrhythmogenic right ventricular cardiomyopathy (ARVC) diagnosis. However, its role in risk stratification of patients with ARVC remains largely undefined.MethodsSixty-four patients fulfilling Task Force ARVC criteria (mean age: 47 ± 14 years-old, 56% male, 50% definite ARVC) were enrolled. The baseline demographic, electrocardiographic, structural, and electrophysiological characteristics were collected. Patients with SAECG fulfilling all 3 Task Force criteria (3 + SAECG) were categorized into group 1, and those fulfilled 2 or less criterion were categorized into group 2. The study endpoints were unstable ventricular arrhythmia (VA), device detectable sustained fast VA (cycle lengths < 240 ms) and cardiovascular death.ResultsDuring a mean follow-up of 21 ± 20 months, 15 primary endpoints including 12 unstable VAs and 3 device-detected fast VAs were met. One patient died of electrical storm, and one patient underwent heart transplantation. The presence of 3 + SAECG predicted malignant events in all patients with definite and non-definite ARVC (p < 0.01, OR = 30.5, 95% CI = 2.5-373.7) and in patients with definite ARVC alone (p = 0.03, OR = 11.1, 95% CI = 1.3-93.9). Patients diagnosed with non-definite ARVC without 3 + SAECG were free from malignant events.ConclusionsSAECG fulfilling all 3 Task Force criteria was an independent risk predictor of malignant events in ARVC patients. SAECG may play a valuable role in ARVC risk stratification.
Journal: International Journal of Cardiology - Volume 174, Issue 3, 1 July 2014, Pages 628-633