Teaching Medical Research to Medical Students: a Systematic Review

PHENOMENON

Research literacy remains important for equipping clinicians with the analytical skills to tackle an ever-evolving medical landscape and maintain an evidence-based approach when treating patients. While the role of research in medical education has been justified and established, the nuances involving modes of instruction and relevant outcomes for students have yet to be analyzed. Institutions acknowledge an increasing need to dedicate time and resources towards educating medical undergraduates on research but have individually implemented different pedagogies over differing lengths of time.

APPROACH

While individual studies have evaluated the efficacy of these curricula, the evaluations of educational methods and curriculum design have not been reviewed systematically. This study thereby aims to perform a systematic review of studies incorporating research into the undergraduate medical curriculum, to provide insights on various pedagogies utilized to educate medical students on research.

FINDINGS

Studies predominantly described two major components of research curricula-(1) imparting basic research skills and the (2) longitudinal application of research skills. Studies were assessed according to the 4-level Kirkpatrick model for evaluation. Programs that spanned minimally an academic year had the greatest proportion of level 3 outcomes (50%). One study observed a level 4 outcome by assessing the post-intervention effects on participants. Studies primarily highlighted a shortage of time (53%), resulting in inadequate coverage of content.

INSIGHTS

This study highlighted the value in long-term programs that support students in acquiring research skills, by providing appropriate mentors, resources, and guidance to facilitate their learning. The Dreyfus model of skill acquisition underscored the importance of tailoring educational interventions to allow students with varying experience to develop their skills. There is still room for further investigation of multiple factors such as duration of intervention, student voluntariness, and participants' prior research experience. Nevertheless, it stands that mentoring is a crucial aspect of curricula that has allowed studies to achieve level 3 Kirkpatrick outcomes and engender enduring changes in students.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1007/s40670-020-01183-w.

Is colonic lavage a suitable alternative for left-sided colonic emergencies?

BACKGROUND

The use of intra-operative colonic lavage (IOCL) with primary anastomosis remains controversial in the emergency left-sided large bowel pathologies, with alternatives including Hartmann’s procedure, manual decompression and subtotal colectomy.

AIM

To compare the peri-operative outcomes of IOCL to other procedures.

METHODS

Electronic databases were searched for articles employing IOCL from inception till July 13, 2020. Odds ratio and weighted mean differences (WMD) were estimated for dichotomous and continuous outcomes respectively. Single-arm meta-analysis was conducted using DerSimonian and Laird random effects.

RESULTS

Of 28 studies were included in this meta-analysis, involving 1142 undergoing IOCL, and 634 other interventions. IOCL leads to comparable rates of wound infection when compared to Hartmann’s procedure, and anastomotic leak and wound infection when compared to manual decompression. There was a decreased length of hospital stay (WMD = -7.750; 95%CI: -13.504 to -1.996; P = 0.008) compared to manual decompression and an increased operating time. Single-arm meta-analysis found that overall mortality rates with IOCL was 4% (CI: 0.03-0.05). Rates of anastomotic leak and wound infection were 3% (CI: 0.02-0.04) and 12% (CI: 0.09-0.16) respectively.

CONCLUSION

IOCL leads to similar rates of post-operative complications compared to other procedures. More extensive studies are needed to assess the outcomes of IOCL for emergency left-sided colonic surgeries.