Srivastav Shival, Sharma Renuka, Kapoor Raj
Physiology, Vardhman Mahavir Medical College and Safdarjung Hospital.
Cureus. 2016 Aug 15;8(8):e736. doi: 10.7759/cureus.736.
Blood pressure estimation is a key skill for medical practitioners. It is routinely taught to undergraduate medical students using an aneroid sphygmomanometer. However, the conceptual understanding in the practical remains limited. We conducted the following study to evaluate the efficacy of digital data acquisition systems as an adjunct to the sphygmomanometer to teach blood pressure.
Fifty-seven first-year medical students participated in the study. An MCQ test of 15 questions, consisting of 10 conceptual and five factual questions, was administered twice - pre- and post-demonstration of blood pressure measurement using a digital data acquisition system. In addition, qualitative feedback was also obtained.
Median scores were 7 (6 - 8) and 3 (1.5 - 4) in pre-test sessions for conceptual and factual questions, respectively. Post-test scores showed a significant improvement in both categories (10 (9 - 10) and 4 (4 - 4.5), respectively, Mann-Whitney U test, p < 0.0001). Student feedback also indicated that the digital system enhanced learning and student participation.
Student feedback regarding the demonstrations was uniformly positive, which was also reflected in significantly improved post-test scores. We conclude that parallel demonstration on digital systems and the sphygmomanometer will enhance student engagement and understanding of blood pressure measurement.
血压估测是医学从业者的一项关键技能。本科医学生通常使用无液血压计来学习这项技能。然而，在实际操作中，学生对其概念的理解仍然有限。我们开展了以下研究，以评估数字数据采集系统作为血压计辅助工具在教学中的效果。
57名一年级医学生参与了该研究。在使用数字数据采集系统演示血压测量前后，进行了两次包含15道题的多项选择题测试，其中包括10道概念题和5道事实题。此外，还收集了定性反馈。
概念题和事实题的预测试中位数分数分别为7（6 - 8）和3（1.5 - 4）。后测分数在两类题目中均有显著提高（分别为10（9 - 10）和4（4 - 4.5），曼-惠特尼U检验，p < 0.0001）。学生反馈也表明数字系统增强了学习效果和学生参与度。
学生对演示的反馈一致积极，这也反映在后测分数的显著提高上。我们得出结论，数字系统和血压计并行演示将提高学生对血压测量的参与度和理解。
