Abstract
Zenker's diverticulum is an outpouching of the mucosa through the Killian's triangle. The etiology of Zenker's diverticulum is not well understood. It is thought to be due to the incoordination or incomplete relaxation of the cricopharyngeal muscle. Most patients are men who present with symptoms of dysphagia between the seventh and eighth decades of life. The diagnosis is made with a dynamic contrast swallowing study. Treatment options include open surgical diverticulectomy and diverticulopexy with myotomy or myotomy alone using flexible or rigid endoscopes. Rigid endoscopic treatment is currently the preferred initial choice for Zenker's diverticulum of any size. The flexible endoscopic technique is used when there is a high risk of general anesthesia, or neck extension is contraindicated. Some centers use flexible endoscopy as the initial treatment option. Due to a lack of prospective studies, the treatment choice should be tailored to the individual patient and local expertise.
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