Research Article

The Feasibility and Safety of the Clip-and-Snare Method with a Prelooping Technique for Gastric Submucosal Tumors Removal: A Single-Center Experience (with Video)

Table 1

Baseline characteristics.

ESD combined with CSM-PLT groupESD groupvalue

Gender (n, %)
 Male50 (58.1%)51 (59.3%)0.88
 Female36 (41.9%)35 (40.7%)

Age (age)54.3 ± 11.454.5 ± 11.40.87

Tumor size (mm)a26.5 (20.7–35.0)27.0 (20.8–35.0)0.92

Tumor location (n, %)
 Gastric fundus54 (62.8%)55 (64.0%)0.97
 Gastric corpus22 (25.6%)21 (24.3%)
 Gastric antrum7 (8.1%)7 (8.2%)
 Gastric cardia3 (3.5%)4 (4.5%)

Tumor origin (n, %)
 MP layer82 (95.3%)80 (93.0%)0.52
 Submucosal layer4 (4.7%)6 (7.0%)

Histological outcomes (n, %)
 GIST79 (91.9%)79 (91.9%)0.89
 Leiomyoma4 (4.7%)3 (3.4%)

Heterotopic pancreas3 (3.4%)4 (4.7%)

GIST risk grading (n, %)
 Very low64 (74.4%)62 (72.1%)0.9
 Low13 (15.1%)15 (17.4%)
 Intermediate7 (8.1%)8 (9.3%)
 High2 (2.4%)1 (1.2%)

Note. ESD: endoscopic submucosal dissection; CSM-PLT: clip-and-snare method with a prelooping technique; MP: muscularis propria; tabGIST: gastrointestinal stromal tumor; a, mean (first quartile (Q1) to the third quartile (Q3)).