Cricopharyngeal function or dysfunction: what's the deal?

Area of Science:

• Gastroenterology and Otolaryngology
• Physiology and Anatomy
• Surgical Management

Background:

• The upper oesophageal sphincter (UES) and cricopharyngeus muscle play a critical role in swallowing.
• Dysfunction in these areas can lead to significant swallowing difficulties (dysphagia).
• Current research is continually refining our understanding of their complex physiology.

Purpose of the Study:

• To review current research on upper oesophageal sphincter (UES) and cricopharyngeus muscle function.
• To explore how a deeper understanding of UES physiology can improve patient management.
• To synthesize new findings regarding UES and cricopharyngeus dynamics.

Main Methods:

• Review of recent manometry studies.
• Analysis of combined fluoromanometry data.
• Examination of anatomical studies and clinical outcomes.

Main Results:

• New insights into the dynamic function of the UES and cricopharyngeus are emerging.
• The response of the UES to injury, reflux, and surgical interventions is being elucidated.
• Surgical treatment for cricopharyngeus noncompliance shows sustained benefits in approximately 75% of patients.

Conclusions:

• UES and cricopharyngeus function is intricate and influenced by various factors including posture, reflux, aging, and medical interventions.
• A comprehensive understanding of UES triggers and responses is essential for effective dysphagia therapy.
• Clinicians can optimize treatment selection for dysphagic patients through advanced knowledge of UES physiology.