Y Kawabata1, T Tanaka2, N Ishikawa3, H Hayashi2, Y Tajima2. 1. Department of Digestive and General Surgery, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane, 693-8501, Japan. Electronic address: batayan5@med.shimane-u.ac.jp. 2. Department of Digestive and General Surgery, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane, 693-8501, Japan. 3. Department of Organ Pathology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane, 693-8501, Japan.
Abstract
BACKGROUND: A superior mesenteric artery (SMA)-first approach has been considered to be an efficient technique in pancreaticoduodenectomy when the SMA is a factor of borderline resectable pancreatic head cancer (BRPHC). However, this excellent procedure has limitations in terms of tumor resection with an intact coverage including the pancreatic tumor and the tumor-draining lymphovascular systems and the ability to achieve a complete regional lymphadenectomy. METHODS: A modified mesenteric plane procedure has been developed that provides improved regional lymphadenectomy and permits adjustment of the surgical approach, which is based on the direction of the tumor infiltration. RESULTS: Of 55 patients taken to surgery, 19 had peritoneal dissemination and/or liver metastasis at staging laparoscopy, and the procedure revealed tumor infiltration to the SMA and/or hepatic artery (HA) in 4 patients. Finally, 32 patients with BRPHC have undergone the procedure between April 2009 and June 2015. Twenty-four of 32 patients (75.0%) had negative resection margins, and the median number of lymph nodes harvested was 34. Lymph nodes around the SMA tested positive for metastasis in 13 patients (40.6%), and those around the HA tested positive for metastasis in 7 patients (21.9%). Complications occurred in 14 patients (43.7%), with no perioperative mortality. Overall survival rates were 65.3% at 1 year and 35.2% at 3 years. CONCLUSIONS: Short-term results with the procedure may encourage surgical management for BRPHC.
BACKGROUND: A superior mesenteric artery (SMA)-first approach has been considered to be an efficient technique in pancreaticoduodenectomy when the SMA is a factor of borderline resectable pancreatic head cancer (BRPHC). However, this excellent procedure has limitations in terms of tumor resection with an intact coverage including the pancreatic tumor and the tumor-draining lymphovascular systems and the ability to achieve a complete regional lymphadenectomy. METHODS: A modified mesenteric plane procedure has been developed that provides improved regional lymphadenectomy and permits adjustment of the surgical approach, which is based on the direction of the tumor infiltration. RESULTS: Of 55 patients taken to surgery, 19 had peritoneal dissemination and/or liver metastasis at staging laparoscopy, and the procedure revealed tumor infiltration to the SMA and/or hepatic artery (HA) in 4 patients. Finally, 32 patients with BRPHC have undergone the procedure between April 2009 and June 2015. Twenty-four of 32 patients (75.0%) had negative resection margins, and the median number of lymph nodes harvested was 34. Lymph nodes around the SMA tested positive for metastasis in 13 patients (40.6%), and those around the HA tested positive for metastasis in 7 patients (21.9%). Complications occurred in 14 patients (43.7%), with no perioperative mortality. Overall survival rates were 65.3% at 1 year and 35.2% at 3 years. CONCLUSIONS: Short-term results with the procedure may encourage surgical management for BRPHC.
Authors: Eduardo de Souza M Fernandes; Oliver Strobel; Camila Girão; Jose Maria A Moraes-Junior; Orlando Jorge M Torres Journal: Langenbecks Arch Surg Date: 2021-06-12 Impact factor: 3.445