For men living with an enlarged prostate whose urinary symptoms are no longer controlled by medication, prostate artery embolization offers a catheter-based pathway that does not require open or transurethral surgery. Understanding what actually happens during the procedure — from the first consultation through the drive home — can make the experience feel far less unfamiliar. This walkthrough describes the typical sequence of a prostate artery embolization, while noting that details always vary by patient anatomy and institutional protocol.
Before the Procedure: Planning and Imaging
Candidacy for prostate artery embolization is usually established through a combination of symptom questionnaires, urinary flow testing, and imaging — often magnetic resonance imaging or CT angiography — to map the pelvic arterial anatomy supplying the prostate. This mapping step matters because the arteries feeding the prostate can vary considerably between individuals, and some patients have anatomy that is more or less favorable for a purely catheter-based approach. A qualified physician reviews this imaging to confirm suitability before scheduling the procedure.
How Is Arterial Access Obtained?
On the day of the procedure, access to the arterial system is typically obtained through a small puncture at the wrist (radial access) or the groin (femoral access), depending on operator preference and patient anatomy. Local anesthesia is used at the access site, and most patients remain awake, sometimes with mild sedation to improve comfort during the several hours the procedure can take. A thin catheter is then advanced under fluoroscopic (X-ray) guidance through the arterial tree toward the internal iliac arteries and, from there, into the smaller prostatic branches.
What Happens During the Embolization Step?
Once the catheter tip is positioned selectively within a prostatic artery, the operator confirms placement with contrast injection and then delivers embolic material intended to reduce blood flow to the targeted prostatic tissue. Because the prostate typically receives blood from both sides, the procedure is frequently performed to treat both the left and right prostatic arteries in the same session, though this depends on individual vascular anatomy. Careful technique is used throughout to avoid affecting nearby non-target vessels, since the pelvic arterial anatomy is intricate.
Recovery on the Day of and After the Procedure
- Same-day monitoring: most patients are observed for a period after the procedure and may go home the same day or after a short observation window, depending on institutional protocol.
- Access site care: the puncture site is typically covered with a small dressing, and patients are given instructions about limiting strenuous activity for a defined period afterward.
- Symptom timeline: unlike surgical resection, symptom improvement after embolization commonly develops gradually over several weeks to months as the treated tissue responds.
- Follow-up: patients are usually scheduled for follow-up visits to track symptom scores and flow measurements over time.
What Sensations or Side Effects Are Commonly Reported?
Some patients report mild pelvic discomfort, urinary urgency, or blood in the urine or semen in the days following the procedure — these are commonly described as part of a self-limiting post-embolization period rather than a sign of complication. Any severe pain, fever, or inability to urinate should prompt patients to seek immediate medical care rather than waiting for a scheduled follow-up. A qualified physician determines whether any reported symptom requires further evaluation.
The Role of Embolic Devices in PAE
Prostate artery embolization depends on embolic materials engineered for controlled, targeted delivery through small-caliber catheters into distal prostatic arteries. INVAMED develops embolization devices used across interventional radiology applications; more information on the current portfolio is available on the INVAMED embolization products page. As with all embolic technologies, availability and indications vary by country, and the Instructions for Use (IFU) should always be consulted.
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.