Central venous catheterization technique is a compulsory clinical skill for anesthesia resident physician. Because it is difficult to operate and may cause serious complications, teaching this skill is a key and difficult point in clinical teaching of anesthesiology department.This project aims to observe the effect of video demonstration combined with video feedback teaching on the central venous catheterization time of junior residents and to obtain a better training method for central venous catheterization skills.
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Average time required to complete 5 independent operations in the second week
Timeframe: in the second week