Precision medicine in the treatment of colorectal cancer with liver metastases

Colorectal cancer(CRC),one of the most common malignant diseases,ranks second in morbidity and third in mortality among all cancers worldwide1.The liver is the most common site of distant metastasis in CRC.Liver metastasis is also the main cause of death in patients with CRC.Approximately 25%of patients with CRC have liver metastasis detected at the initial diagnosis,and approximately 50%of patients eventually develop liver metastasis during disease progression.Liver metastasis severely affects the prognosis of patients with CRC.

用于机器人中低位直肠癌术后预防吻合口漏的一项新技术研究

目的:吻合口漏(anastomotic leakage,AL)是低位直肠癌保肛术后的严重并发症,亟需确切有效的预防措施。本研究旨在评估机器人低位直肠癌前切除术(low anterior resection,LAR)联合创新技术预防AL的临床价值。方法:选取2012年5月至2017年5月,于复旦大学附属中山医院接受机器人LAR治疗的601例患者,其中191例患者为对照组(non-PST组),410例患者为治疗组(PST组)。分析比较两组AL发生率、围手术期结局和长期生存率;多因素回归分析机器人LAR术后AL的高危因素。结果:依据ISREC分级,601例患者的总体AL发生率为6.8%,其中B级为5.7%,C级为1.1%。其中PST组的总体AL发生率(5.1%)明显低于non-PST组(10.5%,P=0.015);PST组的C级AL也明显改善(0.2%vs.3.2%,P=0.005)。此外,PST组的手术并发症率(17.3%vs.20.9%,P=0.286)和再手术率(2.7%vs.6.3%,P=0.038)较non-PST组均显著降低。长期结局分析提示两组的局部复发率和长期生存率无显著差异。多因素回归分析提示non-PST技术、术中出血量≥100 mL、吻合口距离肛缘<5 cm以及远端切缘距离肿瘤<2 cm分别是机器人LAR术后AL发生的高危因素。结论:机器人LAR联合PST技术是一种有效预防AL的方法,在临床实践中可避免常规实施保护性造口术。