An uncommon case of syncope in a 4-year-old child affected by a long QT syndrome

Marshall's vein persistence: A rare and occasional finding during pacemaker implantation

In adults the oblique vein of Marshall is usually absent or very thin, and it is hard to be found. In this case report we describe a case of persistence observed during pacemaker implantation.

Syncope in pediatric patients: role of arrhythmias