Análise comparativa inicial de critérios oncológicos de 120 pacientes submetidos a cirurgias colorretais por via laparot？mica (60 pacientes) e por via videolaparoscópica (60 pacientes) para cancer colorretal no Programa de Pós-gradua？？o sensu lato pelo Grupo de Coloproctologia de Belo Horizonte

the objective was to undertake a careful review of a consecutive series of 120 patients with colorectal cancer approached by laparoscopic surgery (video-group, 60 patients) and by laparotomy (lap-group, 60 patients), during 12 months (may 2009 to may 2010). the average age was 58 years and 58.8 years in group-lap and 57.3 years in video-group, the majority being females in both groups (lap-group - 55.0% and video-group - 61.7%, general mean 58.3 years). all patients in both groups underwent colonoscopy and biopsy with histopathologic diagnosis of adenocarcinoma. as far as distribution of tumors in the large intestine in lap-group, 43 tumors were located in the rectum, rectosigmoid and sigmoid colon (71.7%) versus 45 in video-group (75.0%), but with differences between low rectum (lap-group 13,3%, video-group 16.7%) and upper rectum (lap-group 30.0%, video-group 16.7%), sigmoid and rectosigmoid (lap-group 28.4%, video-group 41.6%). the most performed surgery was abdominal rectosigmoidectomy (lap-group 27 cases, 45.0%; and video-group 33 cases, 55,0%), followed by right hemicolectomy (lap-group 16 cases, 26,6%; and video-group 13 cases, 21.7%). the extensions of the surgical specimens were greater in lap-group (mean 46.1 cm vs. 30.0 cm in video-group), but due to higher number of surgeries that resulted in longer specimens. when comparing same surgical techniques, the difference does not persist as in cases of retosigmoidectomy (lap-group with 32 cases, mean 28.2 cm; and video-group with 39 cases, mean 26.6 cm). with regard to tnm staging t3n0m0, tumors was the most common in lap-group with 30 cases (50.0%) and video-group with 35 cases (58.4%). regarding the lymph nodes count in surgical specimens, no difference was noted: total of 810 lymph nodes in specimens of lap-group with a mean of 13.5 nodes per specimen, and total of 862 lymph nodes in video-group with an average of 14.3 nodes per specimen. no difference was noted in relation to the count of lymph nodes in su