复发直肠癌野中野放疗的临床疗效

Clinical Results of Radiotherapy with Field-within-field Technique for Recurrent Rectal Cancer

1987年3月至1992年8月，对43例不能手术复发直肠癌采用野中野放疗（野中野组）和常规放疗（对照组）。局部疼痛完全缓解率52．9％（9／17），对照组仅28％（6／23）。1，2，3年生存率野中野组分别为36.8％（7／19），36．8％（7／19）和10．5％（2／19）分别高于对照组的33．3％（8／24），8．0％（2／24）和0％。2年生存率显著提高（P＜0.05）。

Thzrd Hospital, Harbin Medical University, Harbin 150040)Between March 1 987 and August 1992, 43 patients with inoperative recurrentrectal cancer were divided into two groups. Of the 43 cases 19 were treated with field-within-field radiation technique(group A) and 24 with conventional radiation technique(group B) as a contro 52. 9% (9/17) patients with local pain in group A disappeared complete and 28% (6/23 ) in group B. 1, 2, 3-year survival rate was 36. 8% (7/19) and 10. 5% (2/19) for group A, which was higher than 33. 3% (8/24). 8% (2/24) and 0% for group B respectively. Thedifference of 2-year survival time in group A compared with that in group B was stastistically significant(P<0.05).