Clinical outcomes of early gastric cancer with non-curative resection after pathological evaluation based on the expanded criteria


Autoři: Hyun Ju Kim aff001;  Sang Gyun Kim aff001;  Jung Kim aff001;  Hyoungju Hong aff001;  Hee Jong Lee aff001;  Min Seong Kim aff001;  Hyunsoo Chung aff001;  Hyun Chae Jung aff001
Působiště autorů: Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea aff001;  Yonsei University Graduate School of Medicine, Seoul, Korea aff002;  Health Promotion Center, Seoul National University Hospital, Seoul, Korea aff003
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article
doi: 10.1371/journal.pone.0224614

Souhrn

Additional surgical resection should be considered for the patients with pathological findings beyond the expanded criteria with the risk for LN metastasis. However, close observation without additional surgery may be applied because of various reasons. We aimed to determine the clinical outcomes of early gastric cancer beyond the expanded criteria after endoscopic resection according to the pathological extent. A total of 288 patients with 289 lesions beyond the expanded criteria of endoscopic submucosal dissection for early gastric cancer were analyzed between 2005 and 2016, and classified into two groups according to additional treatment: observation (n = 175 patients, 175 lesions) and surgery (n = 113 patients, 114 lesions). The depth of tumor invasion was greater and the tumor-positive vertical margin and lymphatic and venous invasion were more common in the surgery group than in the observation group (P<0.001). Residual, synchronous, and metachronous tumors were more common in the observation group; however, the occurrence of regional lymph node and distant metastasis did not differ between the groups. Overall survival and 5-year disease-specific survival did not differ between the groups (observation vs surgery, 88.6 vs 93.8%; P = 0.259, 98.2 vs 100%; P = 0.484, respectively), but the 5-year disease-free survival was lower in the observation group (73.5 vs 97.9%; P<0.001). On multivariate analysis, tumor-positive lateral margin was a risk factor for residual tumor and lymphatic and venous invasion were risk factors for regional lymph node metastasis. In conclusion, the clinical course of beyond the expanded criteria of endoscopic submucosal dissection for early gastric cancer showed good prognosis over 98% in 5-year disease specific survival. If additional surgery cannot be performed, a close follow-up with endoscopy and abdominal computed tomography can be considered as an alternative for carefully selected patients without lymphatic and vascular invasion.

Klíčová slova:

Cancer risk factors – Gastric cancer – Lesions – Metastasis – Surgical and invasive medical procedures – Surgical oncology – Vascular surgery – Surgical pathology


Zdroje

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Článek vyšel v časopise

PLOS One


2019 Číslo 10