Quality control by photograph for evaluation of open (OP) and laparoscopic (LAP) colectomy with D3 resection for stage II/III colorectal cancer: Japan Clinical Oncology Group study JCOG 0404.

e14501 Background: The phase lll JCOG0404 (UMIN-C000000105) showed the favorable short term outcome in LAP arms (less blood loss, decreased pain, a shorter hospital stay, and fewer wound-related complications). In JCOG0404 (between Oct 2004 and March 2009, n=1057), for quality control, photographs of resection fields and, resected specimens, and the skin incision were taken in all patients. Methods: These photographs were sent to Study Coordinator and evaluated by the study-specific committee. Patients with distant metastasis and/or severe invasion were excluded in this study. The quality of resection was judged by the following criteria: Under inadequate to undergo lymphadenectomy; D3, where the main vessel was dissected and ligated at its root. In the subset analysis, were divided into Adequate D3 and Beyond Beyond D3 was defined as extended lymphadenectomy beyond D3. The association between a quality of resection with a number of harvested lymph nodes and intraoperative compli...