Stratification of Postsurgical Computed Tomography Surveillance Based on the Extragastric Recurrence of Early Gastric Cancer.

摘要: MINI: A risk-scoring system for predicting extragastric recurrence after surgical resection of early gastric cancer was developed. The low-risk group showed an extremely rare extragastirc and higher recurrence-free survival than the high-risk group. Postsurgical computed tomography surveillance may be unnecessary in curative cancer. OBJECTIVE To stratify postsurgical (CT) based on a (EGC). SUMMARY OF BACKGROUND DATA CT should not routinely performed all patients because low incidence potential risk radiation exposure. METHODS Data from 3162 who underwent EGC were reviewed to develop predict recurrence. Risk scores predictive factors recurrence, which determined using Cox proportional hazard regression model. validated by Uno censoring adjusted C-index. External validation independent dataset (n = 430). RESULTS overall 1.4% (44/3162). Five (lymph node metastasis, indications endoscopic resection, male sex, positive lymphovascular invasion, elevated macroscopic type), significantly associated with incorporated into system, categorized 2 groups. 10-year differed between low- groups (99.7% vs 96.5%; P < 0.001). accuracy development cohort 0.870 [Uno C-index; 95% confidence interval (95% CI), 0.800-0.939]. Discrimination good internal (0.859) external (0.782, 0.549-1.000). CONCLUSION This might useful resection. We suggest that detect avoided