Error rating tool to identify and analyse technical errors and events in laparoscopic surgery.

Area of Science:

• Surgical technique and patient safety
• Minimally invasive surgery outcomes
• Medical device validation

Background:

• Surgical error analysis is crucial for understanding adverse events and improving surgical training.
• Objective feedback mechanisms are vital for enhancing surgical quality control.
• Laparoscopic surgery requires precise technical skills, making error assessment critical.

Purpose of the Study:

• To design and validate a novel technical error rating tool specifically for laparoscopic surgery.
• To establish the reliability and validity of the new tool in assessing surgical performance.
• To investigate the correlation between technical errors and established measures of surgical skill.

Main Methods:

• Development of a framework with nine task groups and four error modes for rating laparoscopic Roux-en-Y gastric bypass videos.
• Utilizing the Objective Structured Assessment of Technical Skill (OSATS) global rating scale to evaluate technical proficiency.
• Measuring the incidence of errors and surgical injuries (events) to determine the tool's reliability and validity.

Main Results:

• High inter-rater reliability was achieved for both total errors (ICC 0.90) and events (ICC 0.85).
• A significant correlation was found between error frequencies and OSATS scores across all operative steps (rs = -0.75 to -0.40).
• Surgeons with higher OSATS scores demonstrated significantly lower error rates in key steps like jejunojejunostomy formation and pouch formation.

Conclusions:

• The developed error rating tool provides an objective and dependable method for assessing operative performance in laparoscopic gastric bypass.
• The tool's validation supports its utility in surgical education and quality improvement initiatives.
• Findings highlight the link between objective skill assessment and reduced technical errors in complex laparoscopic procedures.