目的 探讨依托信息化平台(教学网站),在建立经典病例库的基础上,将基于案例学习(case-based learning,CBL)结合基于问题学习(problem-based learning,PBL)的教学方法应用于肝胆外科学见习教学的效果。方法 选择在北京大学人民医院肝胆外科参加临床见习的2008级八年制临床医学专业24名学生为研究对象,将其随机平均分为实验组(CBL+PBL组,12人)和对照组(传统教学组,12人)。实验组在教学网站上建立经典病例库,教学过程由CBL开始,学生首先利用网站的经典病例库自主学习,全面了解该病例从发病机制、临床表现到主诉、症状、体征、病史采集、诊断、化验检查、治疗等。然后引入PBL,学生分成小组围绕经典病例提出问题,在教师指导下开展讨论式学习。对照组采用教师理论授课、教学查房和观摩手术等教学方法。学习结束后,对两组学生的外科学理论知识和临床操作技能进行考试。同时,对实验组学生进行问卷调查,以了解其对所用教学方法效果的评价。结果 实验组学生的理论考试成绩(92.1±0.95)分优于对照组学生(87.5±0.62)分,两者差异具有统计学意义(t=7.984,P<0.05)。实验组学生的临床技能成绩(90.9±0.95)分优于对照组学生(86.3±0.88)分,两者差异具有统计学意义(t=8.027,P<0.05)。问卷调查结果显示,实验组12名学生中,超过90.0%的学生认为所用教学方法能够调动学习积极性和提高学习效率。结论 依托信息化平台,将CBL与PBL有机结合应用于肝胆外科学见习教学中,激发了学生的学习兴趣,提高了教学效果。
Objective To investigate the relying on the information platform (teaching website), on the foundation of classical case database, CBL (case based learning, CBL) combined with PBL (problem based learning) teaching method application in clinical hepatobiliary surgery teaching effect.Methods 24 clinical trainees were randomly divided into the experimental group (CBL+PBL group,12) and the control group ( traditional teaching group,12). Experimental group in the teaching website established classic case database, teaching process by the CBL began, students on the web site of classical case database to autonomous learning, a comprehensive understanding of the case from the pathogenesis, clinical manifestations to the complaints, symptoms, signs, history collection, diagnosis, laboratory examination, therapy. Teachers set up the problem of classic cases to discuss the case study under the guidance of teachers. The control group of teachers in theory teaching, teaching rounds and observe the operation etc.. After the study of the two groups of theoretical knowledge and clinical operation to test. Students in the experimental group were surveyed by questionnaires to evaluate the teaching methods.Results The experimental group's theory test score (92.1±0.95) points, better than the control group (87.5±0.62), the difference was statistically significant (t=7.984,P<0.05). The clinical skills of the experimental group were (90.9±0.95), which was better than the control group (86.3±0.88), the difference was statistically significant (t=8.027,P<0.05). The results of the questionnaire showed that more than 90.0% of the students thought that the teaching method could arouse the enthusiasm of study and improve the efficiency of study.Conclusions Relying on the information platform, CBL and PBL are organically combined, applied in hepatobiliary surgery teaching, stimulate the students' interest and improve the teaching effect.
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