Delayed placement of an inflatable penile prosthesis is associated with a high complication rate in men with a history of ischemic priapism

Abstract

Background: Corporal fibrosis is known to result from prolonged priapism; however, the impact of the timing of penile prosthesis placement after priapism on complication rates is poorly understood.

Aim: We sought to evaluate the impact of timing of inflatable penile prosthesis (IPP) placement on complications in men with a history of ischemic priapism.

Methods: We performed a multicenter, retrospective cohort study of patients with a history of priapism undergoing IPP placement by 10 experienced implantation surgeons. We defined early placement as ≤6 months from priapism to IPP. We identified a 1:1 propensity-matched group of men without a history of priapism and compared complication rates between men who had early placement, late placement, and no history of priapism.

Outcomes: Our primary outcome was postoperative noninfectious complications, and secondary outcomes included intraoperative complications and postoperative infection.

Results: A total of 124 men were included in the study with a mean age of 50.3 ± 12.7 years. A total of 62 had a history of priapism and 62 were matched control subjects. The median duration of priapism was 37 (range, 3-168) hours and the median time from ischemic priapism to IPP placement was 15 months (range, 3 days to 23 years). Fifteen (24%) men underwent early (≤6 months) IPP placement at a median time of 2 months (range, 3 days to 6 months) following the ischemic priapism event. The remaining 47 (76%) underwent placement >6 months following priapism at a median time of 31.5 months (range, 7 months to 23 years). The complication rate in the delayed placement group was 40.5% compared with 0% in the early placement group and control group. Cylinder-related complications such as migration or leak accounted for 8 (57%) of 14 of the postoperative noninfectious complications. Full-sized cylinders were used in all patients who had a cylinder related complication.

Clinical implications: Priapism patients should be referred to prosthetic experts early to decrease complication rates in those needing an IPP.

Strengths and limitations: This is a multicenter study from experienced prosthetic urologists but is limited by the retrospective nature and small number of patients in the early placement group.

Conclusion: IPP complication rates are high in men with a history of ischemic priapism, especially when implantation is delayed beyond 6 months.

Keywords: complications; erectile dysfunction; inflatable penile prosthesis; priapism.