[Current evidence for laparoscopic surgery of colonic cancer].

BACKGROUND: The development of modern videoendoscopy enables surgeons to perform laparoscopic resection of colonic cancer. AIM: This manuscript evaluated the literature concerning clinically relevant differences in the short and long-term course after laparoscopic or conventional resection of colonic cancer.
METHODS: An investigation of meta-analyses from randomized controlled clinical trials comparing laparoscopic and conventional surgery for colonic cancer was carried out.
RESULTS: The incidence of intraoperative complications was higher during laparoscopic surgery, the duration of surgery was increased and blood loss was less when compared to open surgery. Overall morbidity and the incidence of surgical complications were decreased after laparoscopic surgery. General morbidity and mortality were not different after laparoscopic or open resection of colonic cancer. Duration of hospital stay was shorter but was also associated with the type of perioperative care (i.e. traditional or enhanced recovery). Following minimally invasive or conventional resection, the incidence of tumor recurrence (local and distant) and the duration of survival (overall and disease-free) showed no differences. Wound implantations were rare after both operative techniques but with a tendency to occur more often after laparoscopic than open resection.
CONCLUSION: Laparoscopic resection of colonic cancer has clinically relevant short-term benefits for the patients and long-term results are not different from open colectomy. However, most of the patients included in randomized controlled trials underwent right or left colectomy and sigmoid or rectosigmoid resections. Data with a high level of evidence concerning carcinomas of the flexures or the transverse colon do not exist. Suitable patients with colonic cancer should undergo laparoscopic resection by experienced surgeons.