The Role of Deconstructive Teaching in the Training of Laparoscopy

Objective assessment tools in laparoscopic or robotic-assisted gynecological surgery: A systematic review

INTRODUCTION

There is a growing emphasis on proficiency-based progression within surgical training. To enable this, clearly defined metrics for those newly acquired surgical skills are needed. These can be formulated in objective assessment tools. The aim of the present study was to systematically review the literature reporting on available tools for objective assessment of minimally invasive gynecological surgery (simulated) performance and evaluate their reliability and validity.

MATERIAL AND METHODS

A systematic search (1989-2022) was conducted in MEDLINE, Embase, PubMed, Web of Science in accordance with PRISMA. The trial was registered with the Prospective Register of Systematic Reviews (PROSPERO) ID: CRD42022376552. Randomized controlled trials, prospective comparative studies, prospective single-group (with pre- and post-training assessment) or consensus studies that reported on the development, validation or usage of assessment tools of surgical performance in minimally invasive gynecological surgery, were included. Three independent assessors assessed study setting and validity evidence according to a contemporary framework of validity, which was adapted from Messick's validity framework. Methodological quality of included studies was assessed using the modified medical education research study quality instrument (MERSQI) checklist. Heterogeneity in data reporting on types of tools, data collection, study design, definition of expertise (novice vs. experts) and statistical values prevented a meaningful meta-analysis.

RESULTS

A total of 19 746 titles and abstracts were screened of which 72 articles met the inclusion criteria. A total of 37 different assessment tools were identified of which 13 represented manual global assessment tools, 13 manual procedure-specific assessment tools and 11 automated performance metrices. Only two tools showed substantive evidence of validity. Reliability and validity per tool were provided. No assessment tools showed direct correlation between tool scores and patient related outcomes.

CONCLUSIONS

Existing objective assessment tools lack evidence on predicting patient outcomes and suffer from limitations in transferability outside of the research environment, particularly for automated performance metrics. Future research should prioritize filling these gaps while integrating advanced technologies like kinematic data and AI for robust, objective surgical skill assessment within gynecological advanced surgical training programs.

Teaching Clinical Skills Using Online Modality through Modified Peyton's Framework: An Experience from a Medical University in Pakistan

INTRODUCTION

Medical institutions worldwide faced an unprecedented situation during COVID-19 of identifying alternative strategies to sustain the continuum of learning process. This led to several innovations in the traditional medical curriculum. This study explored the effectiveness and feasibility of using the Peyton's framework modified for a virtual platform (Microsoft Teams) for teaching clinical skills to first and second-year medical students at The Aga Khan University, Karachi, Pakistan.

METHODS

In 2020-2021, the modified Peyton's framework was integrated in the clinical skills (CS) curriculum for all first- and second-year students (N=200). For evaluation, a mixed-method design was used, with pre-and post-session questionnaires. Students' satisfaction was obtained through the standard session evaluation tool of the university. For the qualitative arm, to explore the instructors' experiences, purposive sampling was used (n=8) and a focused group discussion (FGD) was conducted. Finally, performance of the students at the end of year summative Objective Structured Clinical Examination (OSCE) was compared with the students of previous year. Quantitative data were analysed using STATA® version 15.1, using paired t-test to compare the differences in OSCE scores in selected CS stations. A p-value of <0.05 was considered significant for all tests. The FGD was transcribed and analysed through manual content analysis.

RESULTS

Nine clinical skills (that included history and examination skills) were taught using the virtual platform. There was a significant improvement in post-session questionnaires in seven of these skills (p value <0.01). Session evaluations showed that most students were satisfied with the learning experience. The instructors showed that the online teaching offered a promising platform for teaching history taking skills. The OSCE scores showed mixed results, with significant improvement in two out of four repeated stations by using paired t-test [abdominal exam (87.33 ± 8.99, <0.001); and precordial examination (88.45 ± 8.36, 0.001)].

CONCLUSIONS

Modifying Peyton's framework to a virtual platform allowed us to sustain the continuum of clinical education during the COVID-19 pandemic. The results support the use of a blended learning environment for teaching clinical skills.

The Spaced Learning Concept in Combination With Halsted and Peyton - A Randomized Controlled Study

BACKGROUND

Several motor learning models have been used to teach highly complex procedural skills in medical education. Two approaches are often employed amongst health care professionals: Halsted's "See one - do one - teach one" concept and Peyton's Four-step approach. Peyton's deconstruction of the learning process into 4 sub-steps was reported to be preferable for learning/acquiring/teaching complex clinical skills. However, a new increasingly popular technique is known as the spaced learning method. In a previous study, we were able to confirm that the spaced learning concept is superior for laparoscopic suturing and knot tying compared to conventional training curricula, this current study aimed to assess the influence of spaced learning in combination with Halsted's and Peyton's tutoring approaches on laparoscopic knot tying of medical students.

METHODS

After randomization, 20 medical students were either assigned to Halsted's or Peyton's teaching approach and trained one-on-one (teacher-student). Additionally, all subjects were trained according to the spaced learning concept, containing 40 minutes of content-blocks, followed by a 20-minute break involving coordinated, standardized physical activity. This was repeated three times. Primary endpoints were time, knot quality, precision, knot strength, as well as overall laparoscopic knotting performance and competency. To evaluate the motivation of the subjects, an 18-item questionnaire was utilized to measure four motivational factors (anxiety, probability of success, interest, and challenge).

RESULTS

All trainees significantly improved after training in all knot attributes. Trainees assigned to Halsted's method were able to significantly outperform the Peyton group in knot quantity within 30 minutes (p = 0.013), time/knot (p = 0.033), performance score (p = 0.009), and precision (p = 0.032). No significant difference between Halsted and Peyton was found for knot strength and quality. Furthermore, no significant difference was identified comparing motivation pre- and post-training. However, subjects in the Peyton appeared to be significantly more anxious after training.

CONCLUSION

Combining spaced learning technique with Halsted's "see one - do one - teach one" appears to be superior to Peyton's Four-step approach in conjunction with spaced learning in surgical naïve students. We recommend further studies evaluating the combination of spaced learning with Halsted and Peyton's instructional methods.

Teaching fiberoptic-assisted tracheoscopy in very low birth weight infants: A randomized controlled simulator study

OBJECTIVE

We developed a fiberoptic-assisted tracheoscopy (FAST) method to avoid direct laryngoscopy during surfactant replacement therapy and compared two training approaches on a very low birth weight (VLBW) infant simulator.

DESIGN

This prospective randomized controlled study was conducted at the Department of Neonatology and Pediatric Intensive Care Medicine of the University Medical Center Hamburg-Eppendorf, Germany.

PARTICIPANTS

We recruited physicians, trainees, students, and nurses without prior experience in endoscopic techniques.

INTERVENTIONS

Participants were assigned randomly to a group that received instructions according to Peyton's Four-Step Approach and a control group that received standard bedside teaching only.

MAIN OUTCOME MEASURES

Primary endpoints were the total and the component times required to place the bronchoscope and the method success.

RESULTS

We recruited 186 participants. Compared with the control group, the Peyton group had a lower mean (±standard deviation) FAST completion time (33.2 ± 27.5 s vs. 79.5 ± 47.9 s, p < 0.001; d = 1.12) and a higher FAST success rate (95% vs. 84%, p = 0.036, V = 0.18).

CONCLUSION

After standardized training, the vast majority of novices completed FAST successfully. Peyton's four-step approach resulted in faster and more successful performance than standardized training.

The effectiveness of the Peyton's 4-step teaching approach on skill acquisition of procedures in health professions education: A systematic review and meta-analysis with integrated meta-regression

Background

Acquisition of procedures is an important element in health professions education. Traditionally procedures are taught using a "see one - do one" approach. That is a teacher demonstrates and describes a procedure and afterwards the students practice the procedure. A more recent teaching approach for the acquisition of procedural skills was presented by Walker and Peyton. Peyton's teaching approach is a stepwise teaching approach and consists of the following four steps: demonstration, deconstruction, comprehension and performance. The aims of this study were (i) to systematically evaluate the effectiveness of Peyton's 4-step teaching approach on the acquisition of procedural skills in health professions education and (ii) to evaluate whether studies with fewer students per teacher showed a larger between group difference than studies with more students per teacher.

Methods

We searched in Medline, PsycInfo, Embase and ERIC for eligible studies. Records were screened by two independent reviewers. A random effects meta-analysis was performed to evaluate skill acquisition and time needed to perform the procedures at post-acquisition and retention tests. A meta-regression was used to explore the effect of the number of students per teacher on the estimated effect of the educational interventions.

Results

An effect size of 0.45 SMD (95% CI [0.15; 0.75]) at post-acquisition and 0.7 SMD (95% CI [-0.09; 1.49]) at retention testing were in favour of Peyton's teaching approach for skill acquisition. The groups using Peyton's teaching approach needed considerably less time to perform the procedure at post-acquisition (SMD: -0.8; 95% [CI -2.13 to 1.62]) and retention (SMD: -2.65; 95% CI [-7.77 to 2.47]) testing. The effectiveness of Peyton's teaching approach was less clear in subgroup analyses using peer teachers. Meta-regression showed that the number of students per teacher was an important moderator variable.

Conclusion

Peyton's teaching approach is an effective teaching approach for skill acquisition of procedural skills in health professions education. When peer students or student tutors are used as teachers the effectiveness of Peyton's teaching approach is less clear. Peyton's teaching approach is more effective when small groups with few students per teacher are used.