Transillumination Assisted Cricopharyngeal Myotomy

Area of Science:

• Otorhinolaryngology and Head and Neck Surgery
• Neuromuscular Disorders
• Surgical Innovation

Background:

• Cricopharyngeal muscle myotomy (CPM) is a standard treatment for dysphagia in Oculo-pharyngeal muscular dystrophy (OPMD).
• Surgical challenges in OPMD patients include difficulties in approaching and dissecting the cricopharyngeal muscle.
• Transillumination offers a potential solution to enhance surgical guidance during CPM.

Purpose of the Study:

• To evaluate the efficacy and safety of transillumination-assisted cricopharyngeal muscle myotomy (TA-CPM) in OPMD patients.
• To compare surgical outcomes and patient-reported dysphagia scores between TA-CPM and conventional CPM.

Main Methods:

• Observational cohort study of 10 OPMD patients undergoing CPM between 2010 and 2019.
• Patients were divided into two groups: TA-CPM (n=5) and conventional CPM (n=5).
• Dysphagia scores, choking, and aspiration events were assessed preoperatively and at 1 week and 1 month postoperatively.

Main Results:

• All patients demonstrated improvement in dysphagia symptoms, with decreased dysphagia scores and fewer choking/aspiration events post-surgery.
• TA-CPM was associated with an improved surgical approach, reduced procedural difficulty, and was preferred by the surgical team.
• Patient-reported dysphagia improvement was comparable between TA-CPM and conventional CPM groups.

Conclusions:

• TA-CPM is a safe, effective, and simple technique that enhances surgical navigation and outcomes for CPM in OPMD patients.
• The technique may reduce surgical errors, improve surgeon comfort, and potentially shorten operative time.
• TA-CPM shows promise for improving myotomy procedures in dysphagia cases beyond OPMD.