Comparison of pulmonary veins in patients with and without atrial fibrillation using multidedector computed tomographic angiography

Objectives: Atrial fibrilation (AF) develops from an arrhythmogenic ectopic focus, which triggers the vicious circle that creates arrhythmias. Arrhythmogenic foci are often located in transition areas between pulmonary veins and left atrial endothelium. This study aims to compare vein anatomy of patients with without AF using multidetector computed tomographic (MDCT) angiography evaluate relationship presence variations development AF. Methods: Seventy cases (38 males, 32 females) aged 23 75 (mean age: 49.9 ± 13.3 years) were included this study. consisted 20 undergoing endovascular radiofrequency catheter ablation 50 participants (control) MDCT examination was performed for evaluation variations. Results: Normal observed 30% (n = 6) group, 60% 30) control 51.4% 36) total both groups. Variation (accessory or common ostium) detected 48.6% 34/70) cases. The most variation accessory (35.7%). Common ostium found be second (12.8%). All ostia localized on side. Early branching 41 (58.5%) 70 Conclusions: Accesory vein, early more frequently present