The purpose of this study is to evaluate improvement of symptoms from benign prostatic hyperplasia (BPH) as assessed by the International Prostate Symptom Score (IPSS) for prostate artery embolization (PAE) with microspheres (Embozene™, 400µm) compared to conventional Holmium laser enucleation of the prostate (HoLEP).

This is a prospective randomized controlled study that collects data of patients with benign prostatic hyperplasia that are treated with prostatic artery embolization (PAE) or with Holmium laser enucleation of the prostate (HoLEP). For PAE a catheter is placed in the prostate artery, a fluid containing thousands of tiny particles (microspheres) is injected through the catheter into these small arteries which nourish the prostate. The injected microspheres will slow the blood flow to the prostate. For HoLEP a Holmium laser will be used to enucleate the prostatic hyperplasia trough the urethra. Clinical follow-up include clinical visit after 1, 6 and 12 months. Acute as well as long term complications will be recorded. The patients fill in the questionnaires for urologic disease. Urodynamic examination will record functional outcome.

Inclusion Criteria:

• Patients evaluated in the urology department and candidates to surgical treatment
• Age > 45 years
• IPSS ≥ 10
• Maximum urinary flow < 12 milliliters (mL)/second (s)
• Post-void residual urinary volume < 300mL
• Prostatic volume between 20mL and 250mL assessed by ultrasound
• Signed informed consent

Exclusion Criteria:

• PSA > 10 (if not negative prostate biopsy)
• Life expectancy below 1 year
• Renal insufficiency defined as Glomerular Filtration Rate < 30 ml/min/1,73m2
• Known severe reactions to iodine-based contrast or gadolinium-based contrast
• CT examination reveals no access to the prostate arteries.