title: Predictive Factors for Pain After Endoscopic Resection of Gastric Tumors.
abstract: Abdominal pain is a common complaint following endoscopic resection (ER).
  
  
  
  To investigate the predictive factors for abdominal pain after ER.
  
  
  
  Patients who were scheduled to undergo endoscopic mucosal resection or endoscopic submucosal dissection for the treatment of gastric adenoma or cancer were prospectively enrolled. Pain scores were checked every 6 h after ER and whenever patients complained of pain by using a 0-10 pain scale. If the pain score exceeded 5, 25 mg of intravenous (IV) pethidine was administered.
  
  
  
  Among 156 patients who underwent ER, 66 (42.3 %) received IV pethidine due to moderate/severe abdominal pain. Both the number of patients complaining of abdominal pain and the pain scores decreased with time following the procedure, with only a few patients complaining of mild abdominal pain 2 days after ER. Multivariate analysis showed that female sex [odds ratio (OR) 2.88; confidence interval (CI) 1.31-6.33], tumor location in the lower third of the stomach (OR 5.46; CI 2.31-12.92), and procedures time more than 60 min (OR 2.96; CI 1.26-6.98) were significant predictive factors for developing pain after ER.
  
  
  
  Female sex, tumor location in the lower third of the stomach, and longer procedure time were significantly associated with pain after ER. Close monitoring and active management of pain is recommended for patients who have these risk factors. With these efforts, the majority of patients could experience pain relief within 2 days after the procedure.
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Seung Young
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea. sungwoojung@korea.ac.kr.|Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, 123 Jukgumro, Danwon-gu, Ansan, Gyeonggi-do, 425-707, Korea. sungwoojung@korea.ac.kr.
authors.forename: Sung Woo
authors.identifier: 0000-0003-1954-1678
authors.initials: SW
authors.lastname: Jung
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jung Wan
authors.initials: JW
authors.lastname: Choe
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jong Jin
authors.initials: JJ
authors.lastname: Hyun
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Young Kul
authors.initials: YK
authors.lastname: Jung
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Ja Seol
authors.initials: JS
authors.lastname: Koo
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Hyung Joon
authors.initials: HJ
authors.lastname: Yim
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Sang Woo
authors.initials: SW
authors.lastname: Lee
mesh_terms: D015746:Abdominal Pain / Q000188:drug therapy / Q000453:epidemiology*; D000236:Adenoma / Q000473:pathology / Q000601:surgery*; D000368:Aged; D000701:Analgesics, Opioid / Q000627:therapeutic use; D002277:Carcinoma / Q000473:pathology / Q000601:surgery*; D015331:Cohort Studies; D000069916:Endoscopic Mucosal Resection / Q000379:methods*; D005260:Female; D005773:Gastroscopy / Q000379:methods; D006801:Humans; D008297:Male; D008614:Meperidine / Q000627:therapeutic use; D008875:Middle Aged; D015999:Multivariate Analysis; D061646:Operative Time; D010149:Postoperative Pain / Q000188:drug therapy / Q000453:epidemiology*; D011446:Prospective Studies; D012307:Risk Factors; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000473:pathology / Q000601:surgery*; D013997:Time Factors
chemical_list: D000701:Analgesics, Opioid; D008614:Meperidine
keywords: Endoscopic mucosal resection; Endoscopic submucosal dissection; Gastric neoplasm; Pain