术前区域动脉灌注化疗治疗进展期低位直肠癌的临床研究

目的 评价术前区域动脉灌注化疗在进展期低位直肠癌的临床疗效.方法 45例进展期低位直肠癌分A和B两组,A组23例行术前区域动脉灌注化疗(PRAC),1～2周后行手术切除.B组22例单纯接受手术治疗.结果 PRAC能够明显改变直肠癌的病理组织形态,总有效率95.65%.A组与B组的根治性切除率分别为91.3%和72.27%;术后1、3年生存率分别为95.65%和86.36%、86.96%和68.18%;术后3年复发率分别为8.69%和27.27%;低位直肠癌的保肛率分别为78.26%和59.09%.结论 PRAC能提高进展期低位直肠癌的根治性切除率及生存率,减少术后复发率,提高低位直肠癌的保肛率.

Preoperative intra-arterial chemotherapy for progressive lower rectal cancer

OBJECTIVE: To evaluate the therapeutic effect of preoperative regional intra-arterial chemotherapy (PRAC) on progressive lower rectal cancer. METHODS: Forty-five patients with progressive lower rectal cancer were divided into groups A (23 cases) and B (22 cases) for treatment with PRAC 1 to 2 weeks prior to surgical tumor resection or with surgical resection only, respectively. RESULTS: PRAC caused obvious tissue degeneration and necrosis of rectal cancer with a total effective rate of 95.65%. The rates of radical resection in groups A and B were 91.3% and 72.27%, respectively. The 1-year postoperative survival rates of the two groups were 95.65% and 86.36%, with 3-year survival of 89.96% and 68.18%, and 3-year postoperative recurrence rates of 8.69% and 27.27%, respectively. The anal preservation rates of the two groups were 78.26% and 59.09%. CONCLUSION: PRAC can increase radical resection rates, promote the postoperative survival and anal preservation rate, and lower the recurrence rate in patients with lower rectal cancer.