Clinical Outcomes of Reduced-Port Laparoscopic Surgery for Patients With Sigmoid Colon Cancer: Surgery With 1 Surgeon and 1 Camera Operator

PURPOSE: This study compared the perioperative clinical outcomes of reduced-port laparoscopic surgery (RPLS) with those of conventional multiport laparoscopic surgery (MPLS) for patients with sigmoid colon cancer and investigated the safety and feasibility of RPLS performed by 1 surgeon and 1 camera operator. METHODS: From the beginning of 2010 until the end of 2014, 605 patients underwent a colectomy for sigmoid colon cancer. We compared the characteristics, postoperative outcomes, and pathologic results for the patients who underwent RPLS and for the patients who underwent MPLS. We also compared the clinical outcomes of single-incision laparoscopic surgery (SILS) and 3-port laparoscopic surgery. RESULTS: Of the 115 patients in the RPLS group, 59 underwent SILS and 56 underwent 3-port laparoscopic surgery. The MPLS group included 490 patients. The RPLS group had shorter operating time (137.4 ± 43.2 minutes vs. 155.5 ± 47.9 minutes, P < 0.001) and shorter incision length (5.3 ± 2.2 cm vs. 7.8 ± 1.2 cm, P < 0.001) than the MPLS group. In analyses of SILS and 3-port laparoscopic surgery, the SILS group showed younger age, longer operating time, and shorter incision length than the 3-port surgery group and exhibited a more advanced T stage, more lymphatic invasion, and larger tumor size. CONCLUSION: RPLS performed by 1 surgeon and 1 camera operator appears to be a feasible and safe surgical option for the treatment of patients with sigmoid colon cancer, showing comparable clinical outcomes with shorter operation time and shorter incision length than MPLS. SILS can be applied to patients with favorable tumor characteristics.

Risk factors for pancreatogenic diabetes after pancreaticoduodenectomy

BACKGROUNDS/AIMS: Postoperative diabetes mellitus (DM) after pancreaticoduodenectomy (PD) may compromise the long-term quality of life in survivors after the operative procedure due to the treatment difficulty and its related complications. The aim of this study is to determine the incidence of new-onset pancreatogenic DM after PD and investigate the risk factors for this complication. METHODS: Among 170 patients who had undergone PD between November 2003 and September 2009, 98 patients were selected for this study. The selected patients were non-diabetic prior to the operation and had undergone follow-up tests for glucose metabolism and an abdominal computed tomography (CT) scan 1 year after the operation. The clinical data of these patients were retrospectively analyzed by reviewing the medical records, radiologic images, and pathologic reports. RESULTS: Postoperative pathology confirmed malignant tumors in 91 patients, borderline malignancy in 5, and benign tumor in 2. The tumor locations included the pancreatic head (n=30), the common bile duct (CBD) (n=30), ampulla of Vater (n=30), and the duodenum (n=8). New-onset DM occurred in 17 (17.4%) of the 98 patients during the first year after the operation. The comparative analysis between postoperative DM (+) and DM (-) groups revealed that the atrophy of the remaining pancreas was the only significant risk factor for development of postoperative DM after PD. CONCLUSIONS: This study suggests that the atrophy of the remaining pancreas increases the risk of pancreatogenic DM after PD, and efforts to prevent pancreatic atrophy are needed to decrease this complication.