Abstract: Objective To explore the effect of innovative Sandwich teaching model in the standardized training of internal medicine residents. Methods From December 2021 to June 2024,a total of 49 residents trained in the Internal Medicine Department of the Affiliated LiHuiLi Hospital of Ningbo University were selected as the research objects. They were randomly divided into an experimental cohort and a control cohort. The experimental cohort (n=24) were trained with the innovative Sandwich teaching model, whereas the control cohort were trained with traditional methods. All residents received clinical thinking ability questionnaire survey, theoretical and practical skills exams and teaching quality evaluations questionnaire survey after training.The differences between the two cohorts were compared by U-test or t-test,and χ² test. Results Comparison of assessment results, After training, the clinical thinking ability[176.50(22.50)], clinical thinking and decision-making scores(90.17±3.49), specialized technical skills scores(104.32±3.78), resident evaluations of teaching quality[41.00(3.75)] and instructor evaluations of teaching quality(24.54±2.87)in the experimental cohort were higher than those in the control cohort[148.00(57.00), (86.72±4.38), (101.41±5.10), 30.00(5.50), (18.72±2.81)], all P<0.05. Conclusions The innovative Sandwich teaching model is helpful to enhance clinical thinking ability and specialized practical skills, and improve the training effect of internal medicine residents.

Key words: Internal medicine, Innovative Sandwich teaching model, Standardized residency training, Clinical thinking ability