Submucosal Tunnel Endoscopic Resection for Esophageal Submucosal Tumors: A Multicenter Study

Table 1

Baseline characteristics of patients.

	(%)
No. of patients	115
No. of lesions	119
Age, yr (range)	49.7 ± 10.7 (26–71)
Sex (female/male)	39/76
Tumor location
Upper esophagus	10 (8.4%)
Median esophagus	58 (48.7%)
Lower esophagus	51 (42.9%)
Tumor distribution
Superficial MP	87 (73.1%)
Deep MP	32 (26.9%)
Tumor size, mm (range)	19.4 ± 10.0 (8–60)
No. of tumors of different sizes, (%)
Φ ≤ 30 mm	110 (92.4%)
30 < Φ ≤ 40 mm	5 (4.2%)
Φ > 40 mm	4 (3.4%)