JAMA OHNS:进展期下咽癌治疗效果——手术VS放化疗

2015-05-18 Zhang JL译 MedSci原创

下咽癌在临床上并不多见,年发病率为0.17~0.8/10万,占头颈部恶性肿瘤的1.4%~5.0%,占全身恶性肿瘤的0.5%。下咽癌多发生于梨状窝区,下咽后壁区次之,环后区最少,但在北欧地区则以环后癌最多见。梨状窝癌和下咽后壁癌多见于男性,而环后癌女性较多。下咽癌是上消化呼吸道恶性程度最高的肿瘤之一,临床统计5年生存率在25%~40%。其预后差的主要原因为:位置隐蔽,症状出现较晚;局部呈侵袭性生长并

下咽癌在临床上并不多见,年发病率为0.17~0.8/10万,占头颈部恶性肿瘤的1.4%~5.0%,占全身恶性肿瘤的0.5%。下咽癌多发生于梨状窝区,下咽后壁区次之,环后区最少,但在北欧地区则以环后癌最多见。梨状窝癌和下咽后壁癌多见于男性,而环后癌女性较多。下咽癌是上消化呼吸道恶性程度最高的肿瘤之一,临床统计5年生存率在25%~40%。其预后差的主要原因为:位置隐蔽,症状出现较晚;局部呈侵袭性生长并沿黏膜下浸润扩散;易发生淋巴结转移;也可发生远处转移。


目前大多数学者认为,手术加放疗的综合治疗模式是最佳选择,而手术彻底切除肿瘤是提高疗效的关键。然而,对于进展期下咽鳞状细胞癌,尚无共识存在于是否术后需要辅助放疗(RT)或辅助放化疗(CRT)或单纯的CRT作为其标准化治疗。

为明确进展期下咽鳞状细胞癌患者在单一医疗机构接受手术辅助术后放疗、放化疗或单纯放化疗对患者的生存结果的影响,来自加利福利亚洛杉矶大学肿瘤科及耳鼻咽喉科的研究人员对此进行了研究。研究结果发表在最新一期JAMA Otolaryngol Head Neck Surg杂志上。

研究人员对1999年1月至2013年4月在一个医疗机构中前瞻性收集的医疗记录数据进行了一项回顾性分析研究,该数据库包含了下咽鳞状细胞癌患者在该时间段的诊断及治疗、随访记录。总生存期(OS)和无复发生存期(RFS)为主要研究点,并使用Kaplan-Meier方法与多变量Cox回归分析用来控制可分析人群和临床病理的特点。

该研究初步纳入166例连续治疗的病人,最终90例不符合研究标准。而在入组的76例患者中,48例(63%)进行了单纯的CRT,28例(37%)接受手术辅助RT或CRT。两组间的年龄、吸烟史、饮酒因素相均衡。手术治疗患者的OS和RFS的分别为66.3%和53.6%;接受单纯CRT治疗的患者OS和RFS则分别为41.3%和41.3%。多变量Cox回归分析显示,接受手术治疗的患者在OS和RFS上稍有改善(OS:危险比[HR]为4.78,95%置信区间为0.91-25.03,P =0.06;RFS:HR为2.97,95%置信区间为0.76-11.53,P =0.12),但差异无统计学意义。

研究人员指出,该项研究结果倾向于支持进展期下咽鳞状细胞癌患者接受手术辅助RT或CRT相比单纯接受CRT治疗的患者有较好的OS和RFS。然而,差异没有统计学意义,意味着需要更大的对照性试验来开展进一步研究并结合现代方法进行优化以改善下咽鳞状细胞癌的治疗结果。

原始出处:

Harris BN, Biron VL, Donald P, et al. Primary Surgery vs Chemoradiation Treatment of Advanced-Stage Hypopharyngeal Squamous Cell Carcinoma. JAMA Otolaryngol Head Neck Surg. Published online May 14, 2015. doi:10.1001/jamaoto.2015.0659.

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    2015-05-20 yzh399
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    2015-05-20 fusion