Scintigraphic assessment of swallow efficiency postlaryngectomy

Area of Science:

• Otolaryngology
• Swallowing Disorders
• Radiation Oncology

Background:

• Hypopharyngeal stenosis is a concern in total laryngectomy patients with partial pharyngectomy.
• Radiation therapy is common post-surgery for these patients.
• Swallowing function assessment is crucial for patient outcomes.

Purpose of the Study:

• To compare swallowing efficiency in total laryngectomy patients with and without partial pharyngectomy.
• To evaluate the impact of radiation therapy on swallowing function post-partial pharyngectomy.
• To assess the utility of scintigraphy in measuring swallowing efficiency.

Main Methods:

• Scintigraphic assessment of liquid swallow efficiency.
• Comparison of three groups: total laryngectomy without partial pharyngectomy, total laryngectomy with partial pharyngectomy, and normal controls.
• Analysis of swallowing data pre- and post-radiation therapy in a subgroup.

Main Results:

• Patients with partial pharyngectomy exhibited prolonged oropharyngeal transit times and reduced swallowing efficiency.
• Swallowing efficiency in the partial pharyngectomy subgroup deteriorated after radiation therapy.
• Scintigraphy proved sensitive in detecting functional changes.

Conclusions:

• Partial pharyngectomy significantly impacts swallowing efficiency in total laryngectomy patients.
• Radiation therapy exacerbates swallowing dysfunction in this population.
• Scintigraphy is a valuable tool for monitoring swallowing function after laryngectomy and radiation.