Page 9 - CUA2019 Abstracts - BPH

Podium session 1: Endourology, bPH, robotics

objective was to compare the healthcare utilization and repeat TURP rate laser TURP became more common with time. Compared to the laser
among older men undergoing either an electrode or laser-based TURP. TURP group, more patients in the electrode group had more prior gross
Methods: We used administrative data from the province of Ontario, hematuria or urinary retention, and fewer had used anticoagulants or
Canada to identify all men >66 years who underwent their first TURP 5-alpha reductase inhibitors. The need for repeat TURP was significantly
between 2003 and 2016. Our index event (TURP) was defined using a higher among men who had a laser TURP (aHR 1.57; CI 1.38–1.78;
combination of billing and procedure codes. Our primary exposure was absolute risk difference +2.3%); laser TURP was also associated with a
type of TURP (laser or electrode). Our primary outcome was need for slightly higher risk of return to ER within 30 days of TURP (aOR 1.11; CI
repeat TURP. Secondary outcomes included blood transfusion, length of 1.01–1.22). Laser TURP had a significantly lower risk of blood transfu-
stay, and return to the emergency room (ER). Our primary analysis was an sion (aOR 0.24, CI 0.16–0.37) and the majority of cases were done as a
adjusted marginal Cox model approach, which accounted for clustering <24-hour stay (73% vs. 7% for electrode TURP).
of patients within treating physicians; a marginal logistic regression was Conclusions: We confirmed the expected benefits of laser TURP (shorter
used for some secondary outcomes (adjusted hazard ratios [aHR]/odds hospital stay and decreased blood loss), however, there was a significantly
ratios [aOR] and 95% confidence intervals [CI]). higher rate of repeat TURP.
Results: We identified 52 748 men: 6838 (13%) underwent laser TURP and
45 910 (87%) underwent electrode TURP. Median age was similar, and

CUAJ • June 2019 • Volume 13, Issue 6(Suppl5) S79