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Impact of cumulative time on the clinical outcomes of endoscopic submucosal dissection in gastric neoplasm

 Sun Min Lim  ;  Jun Chul Park  ;  Hyuk Lee  ;  Sung Kwan Shin  ;  Sang Kil Lee  ;  Yong Chan Lee 
 Surgical Endoscopy , Vol.27(4) : 1397-1403, 2013 
Journal Title
 Surgical Endoscopy  
Issue Date
Dissection/methods ; Female ; Gastric Mucosa/surgery* ; Gastroscopy/methods* ; Humans ; Male ; Middle Aged ; Prospective Studies ; Stomach Neoplasms/surgery* ; Time Factors ; Treatment Outcome
Bleeding ; Complete resection ; Endoscopic submucosal dissection ; Fatigue ; Perforation
BACKGROUND: Endoscopic submucosal dissection (ESD) can be technically demanding and requires great attention to detail and prolonged concentration. We assumed that clinical outcomes of ESDs may be affected by cumulative time, and we aimed to compare complete resection rates and adverse events according to cumulative ESD time. METHODS: This study involved 1,328 consecutive patients with 1,461 gastric tumors who underwent ESD from January 2008 to July 2011 in a tertiary-care academic medical center. The main outcome measurements were en bloc resection rate, complete resection rate, bleeding rate and perforation rate. RESULTS: Patients were divided into three groups according to cumulative time intervals (<2 h vs. 2-4 h vs. ≥ 4 h). Complete resection rate did not differ among the three groups, but early post-ESD bleeding (EPEB) rate was significantly different among the three groups (2.5 vs. 3.5 % vs. 6.6 %, P = 0.040). In multivariate analysis, cumulative time period was an independent predictor of EPEB (2-4 h odds ratio [OR] 2.29, 95 % confidence interval [CI] 1.05-5.01, P = 0.038; ≥ 4 h OR 3.99; 95 % CI, 2.15-7.65, P < 0.001). The rate of perforation was higher in ESDs performed after completing prior endoscopies or outpatient clinic session compared to those performed without prior work (3.8 vs. 1.6 %, P = 0.004). Moreover, prior workload before ESD was an independent predictor of perforation in multivariate analysis (OR 2.77, 95 % CI, 1.37-5.60, P = 0.005). CONCLUSIONS: Our data suggest that cumulative ESD time did not influence en bloc or complete resection rate of ESD, but increased the rate of acute bleeding. Moreover, prior workload before ESDs may increase the risk of perforation.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Jun Chul(박준철) ORCID logo https://orcid.org/0000-0001-8018-0010
Shin, Sung Kwan(신성관) ORCID logo https://orcid.org/0000-0001-5466-1400
Lee, Sang Kil(이상길) ORCID logo https://orcid.org/0000-0002-0721-0364
Lee, Yong Chan(이용찬) ORCID logo https://orcid.org/0000-0001-8800-6906
Lee, Hyuk(이혁)
Lim, Sun Min(임선민)
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