Endoscopic marsupialization of a Zenker´s diverticulum

In this video, we show the marsupialization of a Zenker´s diverticulum through an endoscopic approach using CO2 laser. We start by introducing the endoscope until we localize the diverticulum. We then cut the crycopharyngeal muscle with laser, which is the origin of the problem. As soon as the muscle ends, we stop cutting due to the risk of a fistula.