Abstract
Pharyngocutaneous fistula is a serious complication of total laryngectomy. The purpose of this study was to examine predisposing factors at our institution. We conducted a retrospective review of 94 consecutive patients undergoing total laryngectomy. Cases with hypopharyngeal primary tumors or undergoing extended hypopharyngeal resection with flap augmentation of the pharynx were excluded. Seventy-four cases met inclusion criteria. A total of 25.7% patients developed a pharyngocutaneous fistula. The fistula rate was higher after salvage laryngectomy than after primary surgery (34.0% vs 11.1%; p = .05). Among salvage laryngectomies, performance of laryngectomy within 1 year of completion of radiotherapy (p = .006) and performance of concomitant bilateral neck dissection (p = .02) were significant risk factors for development of a fistula. Radiation dose, addition of chemotherapy, use of pectoralis major myofascial flap, preoperative tracheostomy, primary puncture, primary tumor subsite, and initial T classification were not significant. Interval between completion of radiotherapy and surgery is significantly associated with pharyngocutaneous fistula after salvage total laryngectomy.
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