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Table 1 Clinical characteristics of the gastric lesions

From: Bleeding in patients who underwent scheduled second-look endoscopy 5 days after endoscopic submucosal dissection for gastric lesions

  Number Percent
Total no. of gastric lesions 299  
Age (years, mean ± SD) 71.6 ± 9.1  
Sex
 Male 225 (75.3)
 Female 74 (24.7)
Under antithrombotic therapy 81 (27.1)
 Single antiplatelet agent 52  
  ≥ 2 antiplatelet agents 11  
 Single anticoagulant agent 12  
 Antiplatelet(s) plus anticoagulant 6  
On hemodialysis 1 (0.3)
Tumor location
 Upper third 47 (15.7)
 Middle third 142 (47.5)
 Lower third 110 (36.8)
Length of the resected specimen (mm, mean ± SD) 36.4 ± 15.3
Morphology
 Elevated 174 (58.2)
 Flat or depressed 125 (41.8)
Pathology
 Adenoma 51 (17.1)
 Adenocarcinoma, differentiated type 231 (77.3)
 Adenocarcinoma, undifferentiated type 17 (5.7)
Depth of invasion
 M 263 (88.0)
 SM, ≤ 500 mm (micrometer) 16 (5.4)
 SM, > 500 mm (micrometer) 20 (6.7)
 Ulcer scar within the lesion 16 (5.4)
 Curative resection by ESD 266 (89.0)
  1. SD standard deviation, M mucosal layer, SM submucosal layer, ESD endoscopic submucosal dissection