Multicenter Evaluation of Noise Levels and Staff Perceptions Across Laser Technologies During Holmium Laser Enucleation of the Prostate: A Prostate Enucleation Collaborative Initiative
ABSTRACT Introduction Operating room (OR) noise during holmium laser enucleation of the prostate (HoLEP), particularly from laser activation, may impair surgical workflow and staff performance. Methods 84 HoLEP procedures were recorded at three academic institutions between June 2024 and January 2026. Laser platforms included Lumenis Moses 2.0, Quanta Litho 150, Quanta Magneto, and Dornier Thulio. Sound measurements were obtained using a standardized smartphone‐based system during three phases: laser‐off (baseline), idle (not firing), and active lasing. Acoustic metrics included average sound level (LAeq), peak sound level (Lcpeak), and sound levels exceeded for 10%, 50%, and 90% of the recording time (L10, L50, and L90). Background noise correction was performed using baseline measurements to account for ambient noise and isolate laser‐related sound. OR staff completed a validated survey assessing perceived noise burden (0–10 scale). Results Background‐corrected noise during active lasing differed significantly by platform. Litho demonstrated lower mean noise levels compared to Thulio for LAeq (60.6 vs. 68.2 dB, p = 0.023) and L10 (61.5 vs. 70.6 dB, p = 0.023), while Moses had higher LAeq compared to Litho (63.1 vs. 60.6 dB, p = 0.043). Overall, Litho had the lowest noise levels, whereas Thulio had the highest. Survey responses paralleled these findings. Litho was associated with lower perceived overall effort (2.1 ± 0.9), while Moses demonstrated higher overall effort (3.6 ± 1.2) for communication and concentration (Figure 2). Significant pairwise differences were observed between Moses and Litho (all p < 0.05). Trends were consistent across sites. Conclusions Noise levels during HoLEP varied by laser technology and correlated with differences in perceived communication and cognitive effort. Litho demonstrated the lowest acoustic burden, while Moses and Thulio had higher noise exposure. These findings highlight the impact of laser selection on the OR environment and intraoperative team performance.
Objective To report perioperative, renal functional and oncologic outcomes for patients undergoing partial or radical nephrectomy for cT2 renal masses. Methods Retrospective review of patients who underwent partial ( n = 72) or radical nephrectomy ( n = 379) for cT2 renal masses from 2000 to 2016. After propensity adjustment using inverse probability weighting, the following were compared by surgery (partial or radical nephrectomy): complications, renal function measured by estimated glomerular filtration rate as continuous and as <60 mL/min/1.73 m 2 at 1 and 3 years postoperatively and overall, metastases‐free survival and cancer‐specific survival in patients with renal cell carcinoma. Results After propensity adjustment, clinical and radiographic features were well‐balanced between groups. Overall and severe complications were more common for partial compared with radical nephrectomy, although not statistically significant (19 vs 13%, P = 0.14 and 4 vs 2%, P = 0.3, respectively). Estimated glomerular filtration rate change at 1 and 3 years was more pronounced in radical compared with partial nephrectomy (median −16 vs −5 and −14 vs −2, respectively, P < 0.001). A greater proportion of radical nephrectomy patients had an estimated glomerular filtration rate <60 at 1 and 3 years (55 vs 17% and 48 vs 17%, respectively, P < 0.01). In renal cell carcinoma patients, overall, metastases‐free and cancer‐specific survival were not significantly different between groups (median survivor follow up 7.1 years, interquartile range 3.6–11.4). Conclusions Partial nephrectomy appears to be a relatively safe and a potentially effective treatment for cT2 renal masses, conferring better renal functional preservation compared with radical nephrectomy. These data support continued use of partial nephrectomy for renal masses >7 cm in appropriately selected patients.