Anne van Dalen

Assessing the team’s perception on human factors in the operating room environment I 165 5 All 507 questionnaires were completed by the asked team members after each surgical case, of which 230 (91 cases) at St. Michael’s Hospital (SMH) and 277 (35 cases) at the Amsterdam UMC. The laparoscopic cases included 40 Roux-Y gastric bypasses, 24 Toupet fundoplications, 14 diaphragmatic hernia repairs, 4 colorectal resections and 4 uni- or bilateral adrenalectomies. In total for both sites, 119 questionnaires were completed by staff surgeons, 96 by surgical residents, 76 by surgical fellows, 78 by the anesthesiology team members (including anesthesia nurses), 41 by scrub nurses, 44 by circulating nurses, and 53 by medical students. According to the HFACS model, there are several important factors that may lead to peri-operative unsafe acts and consequently ‘human factor failures’ by the OR team. Personal readiness, was rated significantly lower by the surgical fellows compared to the rest of the team (median 3/5, IQR 0.0, versus 4/5, F-test p-value <0.0001). The same applied to the fellow’s assessment of the team’s ability to deal with unexpected events (median of 3/5, IQR 0.0, versus 4/5, F-test P-value <0.0001), and the communication between their teammembers (median of 3/5, IQR 0.0 versus of 4/5 Figure 1. The HAFCS model framework.