Our data confirmed that previous radiotherapy and hypothyroidism, particularly in salvage laryngectomy patients, are important significant predictors of postoperative pharyngocutaneous fistula. The use of a postoperative barium swallow in these patients may be useful but was not found to be highly sensitive in predicting who will develop a clinically evident leak and should be used with caution.
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White et al. (2012) studied this question.
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