Title Page
ABSTRACT
Contents
Introduction 10
Materials and Methods 12
Study population 12
Endoscopic procedure 14
Definitions 15
Follow-up schedule 17
Statistical analysis 17
Result 18
Baseline Characteristics of enrolled patients 18
Clinical outcomes of argon plasma coagulation 20
Univariate and multivariate analysis of the risk factors for local recurrence after APC 23
Subgroup analysis according to the size, scar change, and submucosal injection 25
Cumulative incidence of local and metachronous recurrence 27
Discussion 31
Conclusion 36
Reference 37
국문초록 41
Table 1. Baseline characteristics 19
Table 2. Endoscopic findings and clinical outcomes 21
Table 3. Univariate and multivariate analysis of the risk factors for local recurrence 24
Table 4. Local recurrence rate after APC according to lesion size, scar change, and submucosal saline injection 26
Figure 1. Flowchart of the study 13
Figure 2. Cumulative incidence of local recurrence after APC for gastric neoplasm 28
Figure 3. Cumulative incidence of local recurrence after APC for gastric neoplasm according to scar change 29
Figure 4. Cumulative incidence of metachronous recurrence after APC for gastric neoplasm 30
Figure 5. Examples of definitions about scar change and submucosal lifting 16
Figure 6. Additional treatment after local recurrence 22
Supplementary Figure 1. Receiver operating characteristic analysis of lesion size according to local recurrence 33