Content from the Journal of the American Neurological Surgeons.

Modified Convergent Procedure for Refractory Atrial Fibrillation Using Intraoperative 3D Epicardial Voltage Mapping

In this video, the authors demonstrate a modified convergent procedure for refractory atrial fibrillation using intraoperative three-dimensional epicardial voltage mapping. The patient is a seventy-four-year-old man who presented with recurrent symptomatic atrial fibrillation despite maximal medical therapy and three prior catheter ablations. 3D voltage maps from the patient’s most recent preoperative catheter ablation are shown…

Recurrent Pneumothorax Due to Diaphragmatic Endometriosis: A Case Report

Endometriosis most commonly involves the pelvis. The most common extrapelvic location of endometriosis is the thorax. Thoracic endometriosis can manifest itself as pneumothorax, hemothorax, hemoptysis, pulmonary nodules, or thoracic pain, but the most common presentation is catamenial pneumothorax. Catamenial pneumothorax symptoms usually begin 24 hours before to 72 hours after the onset of menstruation. A…