心脏超声模拟教学效果的系统评价

Teaching efficacy of cardiac ultrasound simulation:a systematic review

目的系统评价心脏超声模拟的教学效果。方法计算机检索CNKI、VIP、PubMed、EMbase、The Cochrane Library数据库,搜集关于心脏超声模拟教学效果的随机对照试验(RCT),检索时限均从建库至2020年3月7日。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用RevMan 5.3软件进行Meta分析。结果共纳入7个RCT,包括300名学员。Meta分析结果显示:与传统教学方式相比,接受心脏超声模拟教学的学员心脏超声结构图像识别评分更高[SMD=1.38,95%CI(0.81,1.94),P<0.00001],获取超声图像质量评分更高[SMD=2.08,95%CI(1.71,2.44),P<0.00001],获取正确超声图像所需时间更短[SMD=-1.19,95%CI(-1.55,-0.83),P<0.00001]。结论目前有限证据显示,接受心脏超声模拟教学培训的学员在培训后即刻评价指标上优于传统教学方式。但长期后效评价指标在两种培训方式间是否存在差异仍需要更多高质量研究证实。

Objectives To systematically review the teaching efficacy of cardiac ultrasound simulation.Methods CNKI,VIP,PubMed,EMbase and The Cochrane Library databases were electronically searched to collect randomized controlled trials(RCTs)on cardiac ultrasound simulation from inception to March 7 th,2020.Two reviewers independently screened literature,extracted data and assessed risk of bias of included studies,then,meta-analysis was performed by using RevMan 5.3 software.Results A total of 7 RCTs involving 300 trainees were included.The results of meta-analysis showed that:compared with traditional teaching method,trainees who received cardiac ultrasound simulation obtained higher cardiac ultrasonic structure image recognition score(SMD=1.38,95%CI 0.81 to 1.94,P<0.00001),higher ultrasonic image quality score(SMD=2.08,95%CI 1.71 to 2.44,P<0.00001),and shorter time required to obtain the correct ultrasound image(SMD=-1.19,95%CI-1.55 to-0.83,P<0.00001).Conclusions The current evidence shows that trainees who received cardiac ultrasound simulation have superior teaching effect immediately after the training compared with those who received traditional teaching method.However,further high-quality researches are needed to confirm whether there is a difference between the two training methods in long-term teaching effect.