目的：分析CO2激光切除术与喉裂开手术对治疗早期喉癌效果的差异，探讨喉癌组织中p27、PTEN蛋白对患者预后的预测价值。方法选取行CO2激光切除术的早期声带癌标本85例( CO2激光治疗组)及行喉裂开手术的早期声带癌标本46例(裂开组)，观察两种术式患者术后复发情况。同时应用免疫组化SP法检测声带癌组织及切缘组织中p27和PTEN蛋白表达，收集临床病理资料并进行随访。结果所有患者均随访2年以上，其中85例CO2激光治疗组14例出现局部复发，复发率16．5%；46例喉裂开术组6例出现复发，复发率为13．0%；两种术式患者的复发率差异无统计学意义( P>0．05)；两组患者中无复发组术后未遵医嘱吸烟者10人，复发组术后未遵医嘱吸烟者12例，两组比较差异有统计学意义( P 0. 05). 10 of all the none recurrent patients did not follow the doctor’s advice to quit smoking after the operation, while 12 in the recurrent patients did not, the difference between the two groups was statistically significant (P<0. 01). The positive rate of p27 and PTEN in laryngeal carcinoma tissues and the cancer adjacent tissues ( negative surgical margin tissues ) was 43. 5% ( 57/131 ) , 80. 2% (105/131) and 48. 9% (64/131), 83. 2% (109/131), respectively, with a significant difference (P<0. 01). The positive rate of p27 and PTEN in laryngeal carcinoma tissues of the recurrent group and non recurrent group was 20. 0% (4/20), 47. 7% (53/111) and 10. 0% (2/20), 55. 9% (62/111), respectively, with a significant difference (P<0. 05). While the positive rate of p27 and PTEN in tumor resection marginal tissues of the recurrence group and non recurrence group was 50. 0% ( 10/20 ) , 85. 6% ( 95/111) and 40. 0% (8/20), 91. 0% (101/111), the difference was also statistically significant (P<0. 01). Conclusions There was no statistically significant difference in tumor recurrence rate between CO2 laser surgery and traditional split laryngeal surgery. Postoper-ative recurrence is closely related to resume smoking. The recurrence rate of p27 and/or PTEN negative patients was higher than that of the opposite ones which should be followed up closely after treatment.
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