Increasing resident utilization and recognition of the critical view of safety during laparoscopic cholecystectomy: a pilot study from an academic medical center

Abstract

Background

Laparoscopic cholecystectomy (LC) is a commonly performed surgical procedure; however, it is associated with an increased rate of bile duct injury (BDI) when compared to the open approach. The critical view of safety (CVS) provides a secure method of ductal identification to help avoid BDI. CVS is not universally utilized by practicing surgeons and/or taught to surgical residents. We aimed to pilot a safe cholecystectomy curriculum to demonstrate that educational interventions could improve resident adherence to and recognition of the CVS during LC.

Methods

Forty-three general surgery residents at Thomas Jefferson University Hospital were prospectively studied. Fifty-one consecutive LC cases were recorded during the pre-intervention period, while the residents were blinded to the outcome measured (CVS score). As an intervention, a comprehensive lecture on safe cholecystectomy was given to all residents. Fifty consecutive LC cases were recorded post-intervention, while the residents were empowered to "time-out" and document the CVS with a doublet photograph. Two independent surgeons scored the videos and photographs using a 6-point scale. Residents were surveyed pre- and post-intervention to determine objective knowledge and self-reported comfort using a 5-point Likert scale.

Results

In the 18-week study period, 101 consecutive LCs were adequately captured and included (51 pre-intervention, 50 post-intervention). Patient demographics and clinical data were similar. The mean CVS score improved from 2.3 to 4.3 (p < 0.001). The number of videos with CVS score >4 increased from 15.7 to 52 % (p < 0.001). There was strong inter-observer agreement between reviewers. The pre- and post-intervention questionnaire response rates were 90.7 and 83.7 %, respectively. A greater number of residents correctly identified all criteria of the CVS post-intervention (41–93 %, p < 0.001) and offered appropriate bailout techniques (77–94 %, p < 0.001). Residents strongly agreed that the CVS education should be included in general surgery residency curriculum (mean Likert score = 4.71, SD = 0.54). Residents also agreed that they are more comfortable with their LC skills after the intervention (4.27, σ = 0.83).

Conclusion

The combination of focused education along with intraoperative time-out significantly improved CVS scores and knowledge during LC in our institution.

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