Voltage-Guided and Non-Voltage-Guided Superior Vena Cava Isolation in Patients With Atrial Fibrillation.

Background: In addition to the pulmonary vein, the superior vena cava (SVC) is an important focus of atrial fibrillation (AF). However, SVC isolation may cause serious complications, and appropriate settings and techniques for SVC isolation are lacking.

Methods: This study enrolled 86 consecutive patients with AF who underwent SVC isolation.

The true distal posterior inferior cerebellar artery aneurysm: clinical characteristics and strategy for treatment.

Objective: A series of aneurysms located at the 4 (th) or 5 (th) segment of the posterior inferior cerebellar artery (PICA) has not been previously reported in the literature. We report six such cases and analyze their clinical characteristics and outcomes from three different treatment strategies.

Material And Methods: We reviewed six patients with a diagnosis of distal PICA aneurysm.