The Safety of the Dissection of Lymph Node Stations 5 and 6 in Pylorus-Preserving Gastrectomy
- 29 July 2009
- journal article
- Published by Springer Science and Business Media LLC in Annals of Surgical Oncology
- Vol. 16 (12), 3252-3258
- https://doi.org/10.1245/s10434-009-0646-7
Abstract
This study was intended to examine the safety of possibly incomplete dissection of lymph node stations (LNS) 5 and 6 in pylorus-preserving gastrectomy (PPG) for gastric cancer. We reviewed the medical information from 1802 gastric cancer patients who underwent curative gastrectomy and whose lymph nodes were topographically classified according to LNS between March 2003 and December 2008. We divided the patients who underwent subtotal gastrectomy into 2 groups according to the distance between the distal resection margin (DRM) and primary tumor: those with a distance of < 6 cm (the < 6 DRM group) and those with a distance of >or= 6 cm (the >or= 6 DRM group). We analyzed the lymph node metastasis rate to LNS 5 and 6 according to T stage and the location. The number of retrieved lymph nodes according to LNS was compared between subtotal gastrectomy (STG) and PPG. The metastasis rate to LNS 5 was very rare in >or= 6 DRM group: T1a, 0% (0 of 105); T1b, 0.9% (1 of 113); and T2a, 0% (0 of 56), although the number of retrieved LNS 5 was significantly lower in PPG than in STG. The metastasis rate to LNS 6 in the >or= 6 DRM group was significantly lower than in the < 6 DRM group, but higher than that of LNS 5: T1a, 0% (0 of 107); T1b, 1.8% (2 of 114); and T2a, 3.6% (2 of 56). The number of retrieved LNS 6 was not significantly different between STG and PPG. PPG seems to be safe for early gastric cancer located >or= 5 cm from the pylorus in terms of LNS 5 and 6.Keywords
This publication has 19 references indexed in Scilit:
- Clinical Outcome of Pylorus‐preserving Gastrectomy in Gastric Cancer in Comparison with Conventional Distal Gastrectomy with Billroth I AnastomosisWorld Journal of Surgery, 2008
- Laparoscopy‐assisted Pylorus‐preserving Gastrectomy: Preservation of Vagus Nerve and Infrapyloric Blood Flow Induces Less StasisWorld Journal of Surgery, 2007
- Symptom evaluation of long-term postoperative outcomes after pylorus-preserving gastrectomy for early gastric cancerGastric Cancer, 2007
- Outcomes after Pylorus‐preserving Gastrectomy for Early Gastric Cancer: A Prospective Multicenter TrialWorld Journal of Surgery, 2004
- Clinicopathologic Features of Asymptomatic Gastric Adenocarcinoma Patients in KoreaJapanese Journal of Clinical Oncology, 2004
- Pathophysiological Studies on the Relationship between Postgastrectomy Syndrome and Gastric Emptying Function at 5 Years after Pylorus‐preserving Distal Gastrectomy for Early Gastric CancerWorld Journal of Surgery, 2003
- Postoperative Evaluation of Pylorus-Preserving Procedures Compared with Conventional Distal Gastrectomy for Early Gastric CancerSurgery Today, 2001
- Japanese Classification of Gastric Carcinoma – 2nd English Edition –Gastric Cancer, 1998
- Feasibility of pylorus-preserving gastrectomy with a wider scope of lymphadenectomy.Archives of Surgery, 1998
- Pylorus-preserving gastrectomy with radical lymph node dissection based on anatomical variations of the infrapyloric arteryThe American Journal of Surgery, 1995