Time Is Money: Can Punctuality Decrease Operating Room Cost?

Abstract

BACKGROUND: Inefficient operating room (OR) use wastes resources. Studies have suggested "first case on-time starts" (FCOTS) reduce OR "idle time," yet no direct association between FCOTS and markers of OR efficiency, like "last case on-time end" (LCOTE) or overtime costs, have been reported. We performed this study to evaluate factors associated with FCOTS, LCOTE, and OR overtime costs. STUDY DESIGN: In April 2017, our medical center launched an FCOTS improvement initiative. Prospectively collected data concerning cases performed in the 6-month preperiods were retrospectively analyzed. Elective, nontraumatic cases performed by orthopaedics, gynecology, urology, minimally invasive surgery, or colorectal surgery were eligible. Univariate and multivariable analyses were used to evaluate 3 outcomes of interest: the association between FCOTS and LCOTE (primary), the change in FCOTS rates after intervention implementation (secondary), and estimated overtime cost savings associated with FCOTS (secondary). RESULTS:We analyzed 12,073 cases (6,095 pre-vs 5,978 post-intervention) performed over 2,631 OR days (1,401 pre vs 1,230 post). The FCOTS rate increased after intervention (76.1% vs 86.6%, p < 0.001), with post-intervention cases twice as likely to start on time (adjusted odds ratio [aOR] 2.07; 95% CI 1.73 to 2.46, p < 0.001). Additionally, starting on time was associated with a higher likelihood of LCOTE (aOR 1.76; 95% CI 1.38 to 2.24, p < 0.001) and 21.8 fewer overtime minutes (95% CI 13.7 to 29.8, p < 0.001) per OR day. Post-intervention estimated savings of $87,954 in direct OR costs over 6 months were associated with the FCOTS initiative. CONCLUSIONS: The FCOTS initiative was associated with higher frequency of FCOTS, which was independently associated with LCOTE. This achieved an estimated 6-month cost savings of more than $80,000 in direct OR expenditures. (J Am Coll Surg 2020;230:182e189. Ó

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