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01-12-2009 | Gastrointestinal Oncology

The Safety of the Dissection of Lymph Node Stations 5 and 6 in Pylorus-Preserving Gastrectomy

Authors: Seong-Ho Kong, MD, MS, Jong Won Kim, MD, Hyuk-Joon Lee, MD, PhD, Woo Ho Kim, MD, PhD, Kuhn Uk Lee, MD, PhD, Han-Kwang Yang, MD, PhD

Published in: Annals of Surgical Oncology | Issue 12/2009

Abstract

Background

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.

Materials and Methods

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 ≥6 cm (the ≥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.

Results

The metastasis rate to LNS 5 was very rare in ≥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 ≥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.

Conclusions

PPG seems to be safe for early gastric cancer located ≥5 cm from the pylorus in terms of LNS 5 and 6.

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Title: The Safety of the Dissection of Lymph Node Stations 5 and 6 in Pylorus-Preserving Gastrectomy
Authors: Seong-Ho Kong, MD, MS
Jong Won Kim, MD
Hyuk-Joon Lee, MD, PhD
Woo Ho Kim, MD, PhD
Kuhn Uk Lee, MD, PhD
Han-Kwang Yang, MD, PhD
Publication date: 01-12-2009
Publisher: Springer-Verlag
Published in: Annals of Surgical Oncology / Issue 12/2009
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI: https://doi.org/10.1245/s10434-009-0646-7

Keynote webinar | Spotlight on medication adherence

Springer Medicine

The Safety of the Dissection of Lymph Node Stations 5 and 6 in Pylorus-Preserving Gastrectomy

Abstract

Background

Materials and Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Materials and Methods

Results

Conclusions

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