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目的：为了治疗阻塞性睡眠呼吸暂停综合征（ＯＳＡＳ），将腭咽成形术加以改良，共行４９例手术。方法：摘除扁桃体，将腭舌弓大部分切除，保留腭咽弓，并将腭咽弓上端向外上４５°剪开，将其向外牵拉缝合；软腭前面较后面多切除约０．６ｃｍ，将后面粘膜向前上牵拉缝合，以扩大咽腔。对舌扁桃体肥大者，彻底切除三角皱襞，将舌根两侧分别向前外牵拉缝合，固定到前创缘。结果：术后咽横截面积由术前的１０３．９４±１５．４１ｍｍ２增加到３５６．２１±１６．４６ｍｍ２。呼吸暂停消失者３２例、减轻１５例，总有效率为９５．９％。结论：改良的腭咽成形术较传统的手术效果为好，尤其对舌扁桃体肥大者也有效。但其适应证仍不包括因各种鼻疾、颌部畸形等所致阻塞性睡眠呼吸暂停综合征。
OBJECTIVE: To treat obstructive sleep apnea syndrome (OSAS), velopharyngeal angioplasty was modified to perform 49 operations. Methods: Tonsillectomy was performed. Most of the palatal arch was excised and the palatopharyngeal arch was preserved. The upper end of the palatopharyngeal arch was cut 45 ° outward and the suture was pulled outward. The front of the soft palate was cut more than 0.6 cm , The back of the mucosa to pull the suture forward to expand the pharynx. Tongue tonsils hypertrophy, complete removal of the triangular fold, the tongue root on both sides of the front outside the traction suture, fixed to the front edge. Results: The postoperative pharyngeal cross-sectional area increased from 103.94 ± 15.41mm2 to 356.21 ± 16.46mm2. 32 cases of apnea disappeared, reduce 15 cases, the total effective rate was 95.9%. Conclusion: The modified velopharyngeal angioplasty is better than traditional surgery, especially for tongue tonsil hypertrophy. However, the indications still do not include obstructive sleep apnea syndrome due to various nasal diseases and jaw deformities.