Prostate Embolization for Acute Urinary Retention Study

Inclusion Criteria: * AUR Patients presenting with a first episode of AUR related to BPH (no matter if previously known or not) AND * Failure of at least one TWOC AND * Prostate size \> or = 50 ml (ultrasound measurement) Exclusion Criteria: * Known hypocontractile bladder * AUR related to other causes (Acute prostatitis or documented Prostate cancer) * Severe iodine allergy * Known prostate cancer * Known ongoing acute or chronic prostatitis * On-going acute pyelonephritis or septicemia from urinary origin * Patient refusing PAE * Severe renal failure (creatinine Clearance \< 20 ml/min (MDRD) * Contra-indication to AR blockers (postural hypotension micturition syncope) * Contra-indication to anticoagulants * Patient catheterized with a suspubian catheter * Patient \<18 * Patients who are prisoners * Patients who are mentally incapacitated * Patients participating in an investigational study involving the peripheral vasculature * Patients unable or unwilling to provide written informed consent * Patients ineligible for pelvic angiography and embolization including severe atheromatous condition or any anatomical condition