How Accurate Are Surgeons at Assessing the Quality of Their Critical View of Safety During Laparoscopic Cholecystectomy?

Abstract

Introduction: Obtaining the critical view of safety (CVS) is considered an important step to reduce bile duct injuries during laparoscopic cholecystectomy (LC). However, existing literature suggests that few surgeons obtain adequate CVS when LC videos are directly evaluated by experts. This discrepancy calls for effective, standardized CVS teaching methods. While self-assessment (SA) remains the principal tool utilized by practicing surgeons for performance improvement, its effectiveness is controversial. The aim of this study was to compare surgeon SAs of repeated LC performance and attainment of the CVS with that of expert raters.

Methods: Multi-institutional study of surgeon members from the Society of American Gastrointestinal and Endoscopic Surgeons who volunteered to participate. All surgeons were asked to submit an LC video and complete a SA of the CVS quality using the Strasberg scale (0-6 score with ≥5 score indicating appropriate CVS). The same videos were reviewed by two blinded expert raters, members of the Society of American Gastrointestinal and Endoscopic Surgeons safe cholecystectomy task force, who had received prior rater training. Surgeon self-ratings and expert ratings were compared with a Wilcoxon signed-rank test.

Results: Twenty-five surgeon-participants were recruited, 13 of whom submitted an LC video. Surgeons did not achieve adequate CVS in their first submitted video based on expert ratings. Surgeons in the SA group overestimated their performance across all four scales: Operative Performance Rating System (z = -0.36, P = 0.715), Global Operative Assessment of Laparoscopic Skills (z = -0.37, P = 0.712), Strasberg (z = -1.84, P = 0.066), and Competency Assessment Tool (z = -0.73, P = 0.465). Surgeons in the coaching group overestimated their performance on each scale as well: Operative Performance Rating System (z = -0.67, P = 0.500), Global Operative Assessment of Laparoscopic Skills (z = -1.48, P = 0.138), Strasberg (z = -1.07, P = 0.285), and Competency Assessment Tool (z = -1.21, P = 0.225).

Conclusions: Our study confirms that an adequate CVS is infrequently obtained during LC in a small but national sample of general surgeons. It further adds to the existing body of literature that suggests that SA alone may be inadequate for performance improvement. Effective teaching methods such as expert or artificial intelligence coaching are needed to improve the use of appropriate CVS by surgeons that may help decrease bile duct injury risk.