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Updated: Oct 9, 2026
Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
Relationship between the size of neopharynx after laryngectomy and long-term swallowing function: an assessment by
1Department of Otorhinolaryngology, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong. yhui@hkucc.hku.hk
Objectives:
To study the relationship between the size of neopharynx after total laryngectomy and long-term swallowing function by means of scintigraphy.
Study Design:
The width of pharyngeal remnant was measured during surgery in 11 patients. Their swallowing function was assessed by scintigraphy 8 to 10 years after surgery.
Methods:
The width of pharyngeal remnant at its narrowest point in both relaxed and stretched state was measured during surgery. Postoperative scintigraphy data on swallowing were obtained and computed along 3 lines, (1) transit time through neopharynx, (2) percentage of bolus transferred, and (3) swallowing efficiency. The relationship between the 2 sets of data was analyzed by linear regression analysis.
Results:
(1) No statistically significant relationship was found between the size of neopharynx and swallowing function. (2) All patients are clinically asymptomatic.
Conclusions:
The swallowing function is not affected by the size of the neopharynx in 11 patients with pharyngeal remnant width ranging from 3 to 8 cm (stretched).
