Previously reported factors related to the technical difficulty and long procedure time for gastric ESD were larger lesion sizes, lesions located in the middle or upper third of the stomach, lesions located in the greater curvature, presence of ulceration or scaring, and PU-H71 operating physician with experience of less than 40 ESD cases.15, 16, 17, 18, 19 and 20 Propensity score matching analysis was developed to minimize the differences in the covariates of patients, which could become confounding factors when examining treatment effects in observational studies. Moreover, propensity score matching analysis has been used for the assessment of endoscopic techniques.21 To minimize sampling bias, propensity score matching analysis was used between the ESD-DFC and conventional ESD groups using the above clinical factors.
With regard to the medical cost, 1 clip costs approximately ¥975 (
Study design
This cross-sectional study was conducted at Indiana University Medical Center, a tertiary-care![image]()
referral center in Indianapolis, Indiana, USA. Informed consent was obtained from all patients, and Institutional Review Board approval was granted before the initiation of the study. The study was registered with the National Institutes of Health (ClinicalTrials.gov number NCT00586313).
With regard to the medical cost, 1 clip costs approximately ¥975 (
Study design
This cross-sectional study was conducted at Indiana University Medical Center, a tertiary-care
referral center in Indianapolis, Indiana, USA. Informed consent was obtained from all patients, and Institutional Review Board approval was granted before the initiation of the study. The study was registered with the National Institutes of Health (ClinicalTrials.gov number NCT00586313).