Hemorrhoid embolization, sometimes referred to as the "emborrhoid" technique, approaches hemorrhoidal disease from a different angle than traditional surgical or office-based methods. Rather than removing or directly treating hemorrhoidal tissue itself, this catheter-based technique targets the arterial blood supply feeding the hemorrhoidal columns, aiming to reduce blood flow and the associated symptoms of bleeding and swelling. Understanding the underlying mechanism helps explain why this option has gained interest as an alternative pathway for select patients.
What Is the Basic Concept Behind Embolization?
Hemorrhoidal tissue receives its blood supply primarily through branches of the superior rectal artery. In embolization, an interventional radiologist accesses this arterial network via a catheter, typically introduced through a small puncture in the groin or wrist, and navigates under fluoroscopic guidance to the branches supplying the hemorrhoidal columns. Once positioned, an embolic agent is delivered to reduce arterial inflow to the target tissue. With reduced blood flow, hemorrhoidal cushions are intended to gradually decrease in size and congestion, which can lessen bleeding and prolapse-related symptoms over time.
How Does the Procedure Typically Proceed?
The procedure generally begins with diagnostic angiography to map the relevant arterial anatomy and confirm the vessels supplying the hemorrhoidal tissue. The interventional radiologist then selectively catheterizes these branches, often navigating quite distally to target the specific vessels involved while preserving surrounding rectal blood supply as much as possible. Embolic material is delivered under continuous imaging guidance to confirm appropriate placement. The procedure is typically performed under local anesthesia with sedation, and many patients are discharged the same day or after a short observation period.
What Embolic Materials Are Used and How Do They Work?
Embolic agents used in this technique are designed to occlude small arterial branches, reducing blood flow to the target tissue without immediately eliminating flow to surrounding structures — an important safety consideration in the vascular anatomy of the rectal region. INVAMED's DuoTEN Embolization Agent for Hemorrhoid Treatment is one such agent, described by the manufacturer as designed for targeted embolization of hemorrhoidal arteries, reducing blood flow to hemorrhoidal tissue as part of the emborrhoid approach. More detail is available on the DuoTEN Embolization Agent for Hemorrhoid Treatment product page, and the wider proctology device range can be found on the Hemorrhoid & Fistula Management category page.
Why Might This Approach Be Considered Over Other Options?
Embolization is generally considered an option for patients with bleeding-predominant hemorrhoidal disease who may wish to avoid a procedure involving direct anal canal instrumentation or tissue removal, since embolization is performed entirely through vascular access remote from the anal canal itself. This can be relevant for patients concerned about post-procedural anal pain, which is a common feature of some other office-based and surgical hemorrhoid treatments. That said, embolization is not universally preferred over other options — like all hemorrhoid treatments, its suitability depends on hemorrhoid grade, symptom pattern, and the anatomy demonstrated on diagnostic imaging, with the final decision resting on clinical judgment.
What Is the Expected Recovery Like?
Because embolization avoids direct manipulation of the anal canal, many patients report less immediate post-procedure discomfort compared with banding or surgical alternatives, though individual experiences vary. Access-site care at the puncture location (groin or wrist) is generally straightforward, similar to other vascular procedures. As with any embolization technique, patients are monitored for signs of the intended reduction in bleeding symptoms over subsequent weeks, since the effect on tissue congestion develops gradually rather than immediately.
Who typically performs hemorrhoid embolization?
This procedure is performed by an interventional radiologist with experience in pelvic and rectal vascular anatomy, often working alongside a colorectal surgeon or gastroenterologist who manages the broader hemorrhoidal disease evaluation and follow-up care.
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.