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  • Title: Swallowing function following hypopharyngeal reconstruction with the pectoralis major musculocutaneous flap.
    Author: Okamura H, Inaki S, Mori T.
    Journal: Auris Nasus Larynx; 1991; 18(4):383-9. PubMed ID: 1820747.
    Abstract:
    Swallowing function was studied in three patients following the pectoralis major musculocutaneous reconstruction of the hypopharynx and cervical esophagus after extensive resection for hypopharyngeal cancer. Fluoroscopy and endoscopy revealed the formation of a sphincter-like ring at the proximal end of the remaining intact esophagus. This ring may act to prevent reflux from the lower esophagus, although its sphincteric power is weak. Manometric testing showed that no swallowing pressure was produced in the reconstructed gullet; therefore, bolus propulsion at the pharyngeal stage occurs mainly by gravity. Follow-up studies on swallowing indicate a minimum length of the suture line of 11 cm in order to prevent esophageal stenosis due to anastomotic stricture at the distal mucocutaneous junction.
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