Analysis of Operating Room (OR) Efficiency During Robotic-Assisted Urologic Surgeries Utilizing Fixed (Nonprocedural) Operative Times

Increase in robot assisted operating room efficiency: A quality improvement study

INTRODUCTION

Pyeloplasties are time-sensitive, and the most common robot assisted intervention performed in pediatric urology. Early intervention is intended to avoid permanent loss of renal function with negative long-term effects if surgery is delayed when indicated. A need to increase capacity has become a premium value in patient care.

OBJECTIVE

Our aim was to reduce operative time, providing value by reducing total robotic console time in robot assisted pyeloplasty (RP) cases. We hypothesized that process improvement and supply management during RP leads to a significant reduction in operative time.

METHODS

Intraoperative surgical workflow was reviewed and routine tasks performed during the various sections were selected with the goal of reducing Operating room inactivity. We focused on robotic arm activity, and total operative time to assess our outcomes. Our intervention was to standardize an OR staff task list, a priori supply inventory procurement for each anticipated major step in the case, confirmed prior to each major step. Baseline RP duration data for a single Pediatric Urologist were identified and recorded before any interventions. A clinical standard work (CSW) was developed based on optimization of equipment/supplies for the RP procedure, compartmentalized into the 8 key steps for RP. These major steps included: patient positioning, docking, retroperitoneal and ureteral dissection, hitch stitch, pyelotomy, stent placement, and anastomosis. Balancing measures included percentage trainee console use, preparatory time, and OR block start/end time. Baseline data for RP cases performed between 11/2020 and 2/2022 were automatically extracted from charts and analyzed using AdaptX (Seattle, WA). Post-intervention was between 3/2022 to 3/2023. Mann-WhitneyU was used for continuous variables for non-parametric distribution.

RESULTS

37 patients underwent RP during the study period. 15 cases were performed prior to intervention and 22 post intervention Total console time prior to intervention was 152 vs 109 min after intervention (p = 0.0002). Dual instrument inactivity was reduced from 13.1 % to 7.1 % (p < 0.0001). Dual consoles were used in 40 % vs ∼69 % pre-vs post-intervention, respectively (p = 0.5000). No difference in patient age distribution between groups was seen (p = 0.1498). Trainee operative time did not differ statistically pre- and post-intervention (63.0 vs 48.6 %, p = 0.0871).

CONCLUSIONS

Decreasing surgical lapses and standardizing intraoperative tasks can result in more efficient case completion, potentially increasing OR capacity.

Analysis of fixed and variable operating room (or) time point efficiency in partial nephrectomies: open versus robotic-assisted

To analyze operating room (OR) efficiency by evaluating fixed and variable OR times for open (OPN) and robotic-assisted partial nephrectomies (RAPN). We analyzed consecutive OPN and RAPN performed by one surgeon over a 24-month period. All patients were placed in the lateral decubitus position and secured with a beanbag regardless of approach. Fixed (non-procedural) OR times were prospectively collected and defined as: in-room to anesthesia-release time (IRAT), anesthesia release to cut time (ARCT), and close to wheels-out time (CTWO). Variable OR time was procedural cut to close time (CTCT). Comparisons of fixed and variable OR time points between OPN and RAPN were performed using the Wilcoxon rank-sum test. 146 RAPN and 31 OPN were evaluated from 2019–2020. Median IRAT was similar for RAPN versus OPN [20 min (IQR: 16–25) vs. 20 min (IQR: 16–26), P = 0.57]. Median ARCT was longer for RAPN than it was for OPN [40 min (IQR: 36–46) vs. 34 min (IQR: 30–39), P < 0.001]. Median CTWO was similar for OPN (12 min, IQR: 9–14) and RAPN (11 min, IQR: 7–15) (P = 0.89). Median CTCT was longer for RAPN (202 min, IQR: 170–236) compared to OPN (164 min, IQR: 154–184) (P < 0.001). In a single surgeon, partial nephrectomy series with the same patient positioning, utilization of robotic technology was associated with longer surgeon operating time as well as less efficient fixed OR times, specifically ARCT.

Analysis of Holmium Laser Enucleation of Prostate Fixed Operating Room Times

OBJECTIVE

To evaluate factors influencing fixed operating room time during holmium laser enucleation of the prostate.

MATERIALS AND METHODS

A prospective observational study was performed for all holmium laser enucleation of the prostate (HoLEP) cases performed by a single surgeon over a 24-month period. Operating room (OR) time was divided into fixed and variable time. The variable time was defined as cut-to-close time. Fixed time included in room time to anesthesia release time (IRAT), anesthesia release time to cut time (ARCT), and close time to wheels out (CTWO). The effects of time of day and anesthesia personnel (AP) changes on fixed operating room time were evaluated.

RESULTS

A total of 406 HoLEPs were analyzed. There was no statistically significant difference in nonprocedural OR times between morning and afternoon surgeries (IRAT, P=0.38, ARCT P=0.10, CTWO P=0.77). Median nonprocedural OR times accounted for 27% (IQR: 22%-31%) of the total procedure time in the AM group and 29% (IQR: 24%-33%) in the PM group (P=0.005). Of the HoLEPs,78.1% (178/228) experienced one or more AP changes during the procedure. The median fixed OR time was not significantly different between procedures with 1 AP and procedures with ≥2 APs (IRAT, P=0.53; ARCT, P=0.71; CTWO, P=0.98).

CONCLUSIONS

Fixed operating room time makes up a significant portion of HoLEP procedures and should be considered when evaluating OR efficiency. The time of day and number of anesthesia personnel involved did not affect the fixed OR times.