Feasibility of simultaneous cardiac catheterization and 2D echocardiogram in the measurement of right rentricular pressure-volume loops / 中国介入心脏病学杂志

Objective To investigate the feasibility of the simultaneous measurement of right ventricular pressure-volume loops by cardiac catheterization and 2D electrocardiogram. Methods Patients referred for pulmonary hypertension underwent right heart catheterization in our hospital between June 1st, 2015 and June 1st, 2017 are to be enrolled in this study. The right ventricular volume was measured simultaneously by catheter and electrocardiogram. The pressure-volume loops were constructed by the parameters of the pressure and volume in the same cardiac cycle. Results The study completed in four cases and their pressure-volume loops were drawn. The obtained images were irregular and there was no relationship among them. As a result, the construction was a failure. Conclusions The construction of the right ventricular pressure-volume loops of pulmonary hypertension patients by simultaneous catheterization and 2D electrocardiogram is difficult to overcome the technology defects.

Application of PBL teaching mode in clinical practice of cardiac catheterization / 中华医学教育探索杂志

Objective To explore the effect of apply PBL teaching mode in clinical practice of cardiac catheterization.Methods Totally 123 undergraduates of five-year clinical medicine major who practiced in department of cardiovascular in 2011 were randomized into control group (n =61) and experimental group(n =62).The students in control group were taught by lecture-based learning (LBL)while those in experimental group by PBL teaching mode.Teaching effect was compared between two groups.Results Excellent and good rates in experimental group and control group were 67.7％ and 38.7％ respectively,P ＜ 0.05,with statistical differences.Average scores were (85.4 ± 7.5) points and (71.3 ± 9.1) points,P ＜ 0.05,with statistical significance differences.Conclusions Teaching effect is better in experimental group than in LBL group.PBL teaching mode can improve students'learning interest,promote self-study consciousness and improve abilities of linking theory with practice,problem solving,innovative thinking,language expressing,organizing and coordinating,team cooperating,critical thinking and thesis writing.Meanwhile,it has certain enlightenment on future work and worth future research and promotion.