What are These Conditions?
The cricopharyngeus is a small but critical muscle at the top of the esophagus that acts as a valve — relaxing to allow food and liquid to pass during swallowing, then closing again afterward. When this muscle becomes overactive, stiff, or fails to relax properly, swallowing becomes difficult and uncomfortable — a condition known as cricopharyngeal dysfunction (CPD).
Over time, the increased pressure generated against a poorly relaxing cricopharyngeus can cause the lining of the throat to herniate outward, forming a pouch known as a Zenker's diverticulum. Food and liquid can collect in this pouch, leading to a distinctive and often distressing set of symptoms. While CPD and Zenker's diverticulum are distinct conditions, they share a common underlying mechanism and are closely related.
A related condition, RCPD (retrograde cricopharyngeal dysfunction) — also known as cant-burp syndrome — involves the same muscle and is covered in detail on its own page.
Common Symptoms
- Difficulty swallowing solids, liquids, or both
- The sensation of food sticking in the throat
- Regurgitation of undigested food, sometimes hours after eating
- Gurgling sounds in the throat, particularly after meals
- Chronic cough, throat clearing, or halitosis
- Unexplained weight loss due to difficulty eating
Diagnosis & Treatment
These conditions require the expertise of a specialist with dedicated experience in surgical and non-surgical management of the upper esophagus and cricopharyngeus muscle. Dr. Benjamin Rafii evaluates cricopharyngeal dysfunction and Zenker's diverticulum with a thorough clinical history, flexible laryngoscopy, and when indicated, additional imaging or swallowing studies.
Treatment depends on the severity of symptoms and the specific diagnosis. For cricopharyngeal dysfunction, options include balloon dilation of the cricopharyngeus muscle — particularly useful in cases where radiation therapy has caused scarring or stiffening of the muscle — or endoscopic laser cricopharyngeal myotomy, a precise surgical technique to permanently release the muscle. For Zenker's diverticulum, endoscopic laser diverticulotomy addresses both the pouch and the underlying muscle dysfunction in a single, minimally invasive procedure — without the need for an external incision.
Related Conditions: Swallowing Disorders / Dysphagia | RCPD / Cant-Burp Syndrome | LPR / Silent Reflux
Related Treatments: Esophageal Dilation | Endoscopic Cricopharyngeal Myotomy | Endoscopic Laser Zenker's Diverticulotomy
Related Services: Swallowing Evaluation | Vocal Cord & Voice Surgery
If you are experiencing difficulty swallowing or suspect a cricopharyngeal condition, Dr. Rafii and his team are here to help. Contact us today to schedule a consultation at The Laryngology & Voice Center of Beverly Hills — same- and next-day appointments are available.