case_images: PMC11686589_01
case_images: Preoperative surface electrocardiogram (A) and intracardiac electrocardiogram of the patient (B).
case_images: CCR3-13-e70042-g003.jpg
case_images: PMC11686589_01_CCR3-13-e70042-g003.jpg
case_images: ccr370042-fig-0001
case_images: Routine blood tests showed no abnormalities, while an electrocardiogram confirmed the presence of AF (Figure 1A).
case_images: Preoperative left atrial computed tomography angiography revealed a common ostium of the bilateral inferior pulmonary veins into the left atrium, with the common ostium being close to the esophagus (A, B). Intraoperatively, mapping confirmed predominantly uniform high-voltage in most areas of the left atrium (C), with only the posterior wall exhibiting a low-voltage area (D). During catheter ablation, a single-ring ablation strategy was employed (E: Anterior-posterior position, F: Posterior-anterior position). Post-catheter ablation, successful isolation of both pulmonary veins and the low-voltage area in the left atrial posterior wall was achieved (G: Anterior-posterior position, H: Posterior-anterior position).
case_images: CCR3-13-e70042-g001.jpg
case_images: PMC11686589_01_CCR3-13-e70042-g001.jpg
case_images: ccr370042-fig-0002
case_images: The results revealed a common ostium of the left and right inferior pulmonary veins. (Figure 2A,B).