近20年，气管食管发音阀已成为全喉切除术后最主要的语言重建方法，因其发音质量好，已渐渐替代了食管发音及人工喉，但气管食管发音阔仍有其缺点，如赝复物太小，咽食管之间的张力太大，夏物气流阻力相对较高及可能并发念珠菌感染等。该研究的目的是评估全喉切除术后使用Provo Tracheal esophageal valve has become the most important method of speech reconstruction after total laryngectomy in recent 20 years. Because of its good pronunciation, esophageal sounds and artificial laryngeal have been gradually replaced, but the tracheoesophageal articulation has its disadvantages, such as pseudopotential Compound is too small, pharyngeal esophageal tension is too large, summer air resistance is relatively high and may be complicated by Candida infections. The purpose of this study was to evaluate the use of Provo after total laryngectomy