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Surgical Endoscopy

, Volume 29, Issue 10, pp 2891–2898 | Cite as

Risk factors for local recurrence in patients with positive lateral resection margins after endoscopic submucosal dissection for early gastric cancer

  • Tae Kyun Kim
  • Gwang Ha KimEmail author
  • Do Youn Park
  • Bong Eun Lee
  • Tae Yong Jeon
  • Dae Hwan Kim
  • Hong Jae Jo
  • Geun Am Song
Article

Abstract

Background

With the widespread use of endoscopic submucosal dissection (ESD) in patients with early gastric cancer (EGC), the number of cases with incomplete resection due to positive lateral resection margins (LM+) is increasing. Local recurrence, which occurs frequently in LM+ cases, is an important issue. This study aimed to clarify the clinicopathological factors related to tumor recurrence in LM+ cases after ESD for EGC.

Methods

From January 2005 to December 2012, a total of 1,083 patients with EGC underwent ESD at our hospital. Of these, cases with a pathological diagnosis of LM+ were included in this study. Patients with positive vertical resection margins, those who underwent surgical resection immediately or were followed up for less than 6 months after ESD, were excluded.

Results

A total of 55 LM+ cases after ESD for EGC were enrolled. Incorrect delineation of a lesion that extended pathologically beyond the ESD marking dots was the main cause of LM+. Local recurrence was found in 20 (36.4 %) patients (median follow-up period, 23 months). Local recurrence rates related to LM+ length were as follows: 7/29 (24.1 %) in 2 mm, 6/16 (37.5 %) in 4 mm, 1/3 (33.3 %) in 6 mm, 4/5 (80 %) in 8 mm, and 2/2 (100 %) in ≥10 mm. In multivariate analysis, tumor size >2 cm (OR 4.48, 95 % CI 1.18–16.99, p = 0.027), and LM+ length >6 mm (OR 7.65, 95 % CI 1.15–50.70, p = 0.035) were independent risk factors for tumor recurrence.

Conclusion

To decrease the risk of LM+, it is highly important to accurately delineate the lateral margins during ESD; when the final histopathological result is LM+, cases with LM+ length >6 mm or tumor size >2 cm should be considered for additional surgical resection or re-ESD because of a high risk of tumor recurrence.

Keywords

Early gastric cancer Endoscopic submucosal dissection Incomplete resection Recurrence 

Notes

Acknowledgments

This study was supported by Biomedical Research Institute Grant (2014-25), Pusan National University Hospital and by a Grant from the National R&D Program for Cancer Control, Ministry for Health, Welfare and Family Affairs, Republic of Korea (0920050)

Disclosures

Tae Kyun Kim, Gwang Ha Kim, Do Youn Park, Bong Eun Lee, Tae Yong Jeon, Dae Hwan Kim, Hong Jae Jo, and Geun Am Song have no conflict of interest or financial ties to disclose.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Tae Kyun Kim
    • 1
  • Gwang Ha Kim
    • 2
    Email author
  • Do Youn Park
    • 3
  • Bong Eun Lee
    • 1
  • Tae Yong Jeon
    • 4
  • Dae Hwan Kim
    • 4
  • Hong Jae Jo
    • 4
  • Geun Am Song
    • 1
  1. 1.Department of Internal MedicinePusan National University School of MedicineBusanKorea
  2. 2.Department of Internal Medicine, Pusan National University School of Medicine and Biomedical Research InstitutePusan National University HospitalBusanKorea
  3. 3.Department of PathologyPusan National University School of MedicineBusanKorea
  4. 4.Department of SurgeryPusan National University School of MedicineBusanKorea

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