Cadaveric Simulation Training in Cardiothoracic Surgery: A Systematic Review

A Comparative Analysis of Physical Therapy Anatomical Knowledge and Retention: Human Donor Dissection Versus Virtual Laboratory

INTRODUCTION

Despite a long history of using human donor dissection (HDD) for physical therapy (PT) anatomy education, there are no PT guidelines that require HDD. The purpose of this quantitative causal-comparative study was to determine if Doctor of Physical Therapy students who used HDD had different grades both within anatomy and within courses that require retention and application of anatomical knowledge (kinesiology and a foundational musculoskeletal course) compared with those who used virtual 3-dimensional anatomical software (VAS).

REVIEW OF LITERATURE

Numerous factors affect the decision to use HDD within PT anatomy, and few PT studies have compared the effectiveness of VAS to HDD.

SUBJECTS

All students who took anatomy in an entry-level PT program from 2018 to 2021 (232 total students, 115 who used HDD in 2018-2019 and 117 who used VAS in 2020-2021).

METHODS

Mann-Whitney tests were used to compare anatomy grades (course, written examination, and practical examination) and future grades in kinesiology and a foundational musculoskeletal course for students who used HDD or VAS.

RESULTS

Physical therapy students who used VAS had statistically significant higher anatomy course grades (VAS 93.81% ± 4.99% to HDD 92.20% ± 4.53%) and higher practical examination grades (VAS 97.43% ± 2.91% to HDD 93.55% ± 4.39%) compared with those who used HDD. However, there were no significant differences between groups on written anatomy examinations (VAS 89.42% ± 7.21% to HDD 90.40% ± 4.94%), kinesiology grades (VAS 91.86% ± 4.52% to HDD 92.80% ± 4.27%), or foundational musculoskeletal grades (VAS 89.50% ± 3.89% to HDD 89.77% ± 3.83%).

DISCUSSION AND CONCLUSION

The causal-comparative study design prevents concluding that PT student grade differences were due exclusively to either anatomy laboratory method. It does provide preliminary evidence that the PT anatomy laboratory method did not practically affect anatomy performance or long-term application of anatomy knowledge in future coursework.

Face, Content, and Construct Validity Evaluation of Simulation Models in General Surgery Laparoscopic Training and Education: A Systematic Review

BACKGROUND

Laparoscopic technical surgical skills (LTS) are considered a fundamental competence for General Surgery residents. Several simulation tools (ST) have been explored to develop LTS. Although a plethora of systematic reviews evaluate the translation of LTS developed in simulation to real surgery, there is a lack of evidence that clarifies effectiveness of different validated ST in acquisition of LTS in surgical residents. The aim of this systematic review (SR) is to summarize published evidence on ST validation used for surgery education and training.

METHODS

A protocol was published in PROSPERO. A SR was carried out following PRISMA guidelines. Complete published articles in English or Spanish that validate either content or construct, plus another form of validation of ST to acquire LTS in general surgery were included. Articles that used only one validation or did not validate an ST were excluded.

RESULTS

1052 publications were initially identified across all searched databases. Title review identified 204 studies eligible for full text screening. 10 studies were included for final review. Two studies assessed both face and content, 4 face and construct, and 4 face, content and construct validity. None of the studies presented comparable outcomes due to metrics variation and scores used for the validation strategies.

CONCLUSIONS

This study assessed validated laparoscopic simulation models, particularly in content and construct validity. Articles reported an increased use of simulation models in laparoscopic training with positive feedback from trainees, but few studies reported validation of training model. Validation strategies are not standardized, limiting comparability between them.

Early post-septal myectomy outcomes for hypertrophic obstructive cardiomyopathy

BACKGROUND

We aimed to evaluate early outcomes of septal myectomy in patients with hypertrophic cardiomyopathy.

METHODS

We retrospectively analyzed data collected over a 9-year period from 583 patients who underwent septal myectomy for hypertrophic cardiomyopathy at our institution.

RESULTS

The mean age was 55.7 ± 13.1 years, and 338 (58%) patients were in New York Heart Association class III or IV. There were 11 (1.9%) early deaths, including 3 (0.5%) intraoperative deaths. Early mortality was lowest after isolated septal myectomy (0.8%) and highest after concomitant mitral valve replacement (6.1%). There were 4 (0.7%) and 9 (1.5%) patients with left ventricular wall rupture and ventricular septal defect, respectively, after myectomy. New pacemaker implantation caused by atrioventricular disturbances was required in 29 (5.0%) patients, and was associated with previous alcohol septal ablation (odds ratio 3.34, 95% confidence interval 1.02-11.0, P = 0.047). Left ventricular wall rupture, intraoperative residual (15.5% moderate, 0.3% severe) mitral regurgitation, and pre-discharge residual outflow tract gradient >30 mm Hg (4.6%) occurrences were surgeon-dependent.

CONCLUSIONS

The early results are consistent with example targets reported in the 2020 American College of Cardiology/American Heart Association guidelines for septal reduction therapy outcomes. Septal myectomy safety and efficacy are surgeon-dependent. Previous alcohol septal ablation increases the risk of permanent pacemaker implantation due to postoperative complete atrioventricular block. Therefore, continuous education, mentoring, and learning by doing may play an important role in achieving reasonable septal myectomy safety and efficacy.