Pelvic congestion embolization · the pinhole treatment — no incision, no general anesthetic

The pain comes from veins that pool. Here’s how we close them — without surgery.

Pelvic congestion syndrome (now also called venous-origin chronic pelvic pain) is varicose veins inside the pelvis: valves fail, blood pools, and the stretched veins press on the nerves around them. Pelvic congestion embolization closes the faulty ovarian and pelvic veins from the inside — through a pinhole at the groin, with no incision, no general anesthetic, and no organ operated on. It’s performed in our own office under twilight sedation, takes about 45 minutes to an hour, and you go home the same day; most women are back to work in two to three days. Typically covered by insurance. No referral needed for your initial consultation.

Confirmed on a venogram before anything is closed Typically covered by insurance No referral or prior authorization needed for your initial consultation

Dr. Samy Al-Bayati, in surgical cap and mask, performs an embolization procedure in the ARVC angiography suite
Performed by the physician, start to finish Dr. Samy Al-Bayati in ARVC’s angiography suite — in our office, not a hospital.

How people find this page

Maybe you’ve had the workup and the answer was “yes — it’s your veins.” Maybe an MRI report finally mentioned dilated pelvic veins and somebody, at last, took it seriously. Maybe you were offered a hysterectomy for pain nobody could explain, and went looking for what else exists. Or maybe you just read the word embolization for the first time this week and want to know what it actually involves.

If you’re still at the “is this what I have — and is it my veins that are causing this?” stage, start with our pelvic congestion syndrome page — it covers what’s happening, why it follows gravity, why “normal” scans don’t rule it out, the workup step by step, and every option including the ones we don’t perform.

This page is for the next question: what the procedure actually does, what it doesn’t, what the numbers really are, and what the day is actually like.

The procedure

The whole idea in four sentences.

Blood is pooling in your pelvis because the one-way valves in the veins that drain it — most often the ovarian veins, which run from the pelvis up toward the kidneys — have failed, and blood is flowing backward. Close those veins from the inside, and the blood takes a different route: through the healthy veins running alongside, which your body already has. Pressure drops, the pooling stops, and the swollen veins shrink back down over the following weeks. And because the closing is done from inside the vein, nothing is cut, nothing is removed, and no organ is operated on — the whole procedure happens inside the veins themselves.

Here’s how. Through a pinhole in a vein at the groin, an interventional radiologist guides a catheter — a tube about the width of a spaghetti strand — up to the pelvic veins, watching on a live screen. Dye is injected, and this is the venogram: the reference standard for the diagnosis.⁴ The doctor measures the ovarian veins, watches for backward flow, looks for the tangle of overfilled veins in the pelvis and for contrast that lingers instead of clearing — and checks the veins upstream, in case a squeezed vein higher up is driving the whole problem.³ ⁵ If what we see matches what you feel, we treat right then, in the same session. A medicated foam seals the tangle of smaller pelvic veins; tiny coils close the main trunk. Both ovarian veins — and the pelvic branches that feed the problem — are treated as needed, through the one pinhole.⁵ The branches that get missed are the ones that bring it back, so the map matters.

Image to come · before & after venogram A de-identified pair from an ARVC case: the dye map before — the failed ovarian vein filling backward into a tangle of overfilled pelvic veins — and after, with the coils in place, the foam having sealed the tangle, and no flow below.Spec: de-identified, no patient identifiers in the frame (crop the overlay). Kevin is holding imaging for this line and will send it. Two frames side by side, “before / after” captions, arrows to the reflux and to the coils.

Before any of this is scheduled, you’ve had the workup. A picture of dilated veins is not a diagnosis — about 1 in 5 women without pelvic pain have leaky pelvic veins.² So the history comes first, then the imaging (we normally order an MRI), and only then the venogram — which is where the diagnosis is confirmed, or isn’t. The full workup is on the pelvic congestion syndrome page.

What to know first

Three things to know before any results.

We won’t treat you off a scan — and here’s why that protects you

Dilated pelvic veins are common in women who have no pain at all: in one study, nearly half of healthy women being screened as kidney donors had them,⁶ and in the largest case–control study about 1 in 5 pain-free women had leaky pelvic veins.² Anyone who offers to close your veins on the strength of a picture is skipping the step that matters. Here, the venogram has to agree with your symptoms before anything is closed — and if it doesn’t, nothing is, and you leave with a real answer instead of a procedure you didn’t need.

The evidence is real — and not as deep as we’d like

The best study is a randomized trial of 60 women in which the comparison group had the very same catheter procedure without the embolization: at one year the treated women had substantially lower pain scores and better quality of life, with no major complications.¹ That’s a strong design. It’s also a small trial, stopped early by the pandemic, with one year of follow-up. A larger sham-controlled trial is now under way; we’ll update this page when it reports.⁷ We think the evidence justifies offering this to the right woman after a proper workup. We won’t call it “proven.”

Roughly 1 in 10 to 4 in 10 have the pain come back

Across the published series, 7 to 9 in 10 women get meaningful, lasting relief — and pain returns in roughly 1 in 10 to 4 in 10 over time,⁴ sometimes because a vein reopens, sometimes because another vein takes over the job. If it does, we look again with a venogram, and re-treatment is possible. We’ll never promise permanence, and we won’t call it a cure. If anyone does, be careful.

And one more thing, plainly: pelvic pain often has more than one cause. Your veins may be one of several. Treating them well can take a real weight off — and still leave work to do with your other doctors. We’ll tell you which we think it is. Limits first, results second — that’s the order you deserve. Now the day itself, then the studies.

Procedure day

In our office. About an hour. Home the same day.

Before anything is scheduled: you’ve had a consultation. Your whole history has been taken and every prior scan and report has been read — by someone looking for veins. You’ve normally had an MRI, and the pattern points at your veins. Your benefits have been checked. You know where you stand — medically and financially — before you commit to anything.

The morning of: you come to our office — not a hospital. The procedure happens in our own interventional radiology suite. You’ll have fasted beforehand, and you’ll bring a driver — no exceptions: that’s the sedation, not the procedure. You’ll get the exact instructions, in writing, well before the day.

During the procedure: an IV delivers twilight or moderate sedation — you’re relaxed and drowsy, breathing on your own, with a dedicated sedation nurse with you the whole time. Not general anesthesia. The interventional radiologist numbs a spot at your groin and enters the vein through a pinhole — no incision, no stitches; a bandage covers it afterward. The catheter travels up to the pelvic veins. Dye flows, and the venogram shows what the veins are actually doing. If it confirms the diagnosis, we treat right then: the foam seals the tangle of smaller veins, the coils close the main trunk, and both sides are treated as needed through the same pinhole. If it doesn’t confirm, nothing is closed, and you go home with an answer. You won’t feel any of this happening — most women describe pressure rather than pain. The procedure itself is about 45 minutes to an hour; plan on about three hours at the office.

Afterward: the catheter comes out, the pinhole is sealed, and you recover with us for about an hour. Then your driver takes you home — the same day. The first few days are the hard part: as the treated veins close, expect a deep pelvic ache and sometimes a low-grade fever for a few days — the body’s normal reaction to a closed vein, and in the published experience generally milder than the cramping after fibroid embolization.³ ⁵ We counsel every woman about it up front, and you go home with a plan and real pain medication. Keep the pinhole clean and dry for a couple of days — showers are fine, no baths, pools, or hot tubs for 48 hours — and no heavy lifting or strenuous activity for a few days. Most women are back to work in two to three days — often less. You take the on-call doctor’s cell phone number home with you. Not an answering service — the doctor. And the next morning, we call you to check on you. Every patient, every time.

The angiography suite at ARV Centers: imaging equipment and procedure table
Where it happens Our own interventional radiology suite, in our office — not a hospital operating room.

Call our office if

Pain isn’t controlled by your medication · fever above 101°F, or a low-grade fever that lasts beyond a few days · pain, a hard lump, or worsening bruising at the pinhole · redness or warmth spreading from the site · anything that simply doesn’t feel right to you.

Go to the ER now if

Sudden chest pain or shortness of breath · bleeding at the pinhole that won’t stop with firm pressure · a leg that suddenly swells and hurts · signs of a serious allergic reaction.

The weeks after — typical patterns, not promises:

Days 1–3The ache, and sometimes a low-grade fever, as the treated veins close. Real pain medication, a heating pad, and rest. Most women are back to work in two to three days — often less.
First weekThe ache settles. Some soreness at the pinhole is normal; it heals without stitches.
Weeks 2–8The heaviness and the end-of-day pressure ease as the pooled blood clears and the veins shrink back down.
BeyondIf the pain returns — it does in roughly 1 in 10 to 4 in 10 women over time⁴ — we look again with a venogram, and re-treatment is possible.

The published evidence

What the numbers show — and which question each one answers.

3 vs 9

Median pain score at one year — embolization versus the same catheter procedure without treatment — in the randomized trial of 60 women. Quality of life improved too, and there were no major complications.¹ This is the pain number, from the strongest design the field has.

7 to 9 in 10

Women who get meaningful, lasting relief across the published series — with recurrence in 1 to 4 in 10 over time.⁴ We print both in the same breath, every time — the relief figure never travels without the recurrence figure.

96–100%

Technical success — the faulty veins successfully closed — across the published series.⁴ This is the plumbing number, not the pain number. Different question, different figure.

2–3%

Overall complication rate in the reviews, mostly a few days of post-procedure ache and low-grade fever.⁴ Zero major complications in the randomized trial.¹ The rare serious ones — a coil moving out of position, a clot to the lung — are recognized and uncommon.³

What the numbers don’t say: the randomized trial enrolled 60 of a planned 100 women and followed them for one year — a strong design, a small study, and no durability data beyond twelve months.¹ A larger sham-controlled trial (EMBOLIZE) has been enrolling since 2025; we’ll update this page when it reports.⁷ The 96–100% describes whether the vein closed — 7 to 9 in 10 is the relief figure, and 1 to 4 in 10 women had the pain come back over time. And the association behind all of it is strong but not absolute: leaky pelvic veins were found in 62% of women with chronic pelvic pain versus 19% of women without it² — which is exactly why the findings have to match your symptoms before anyone treats them.

Sources: 1. Hansrani V, Riding D, Seif MW, et al. Transvenous occlusion of incompetent pelvic veins to treat chronic pelvic pain in women: a randomised controlled trial. BJOG 2023 — 60 women, coil embolization vs venography alone, 12 months; short-form McGill pain rating index median 3 (IQR 0–10) vs 9 (IQR 5–22), p=0.016; VAS 15 vs 53, p=0.002; EQ-5D improved, p=0.008; no major complications; one incomplete embolization from vasospasm; stopped early (COVID), 60 of 100 planned. 2. Hansrani V, Riding D, Seif MW, et al. Pelvic vein incompetence and chronic pelvic pain: a case–control study. BJOG 2023;130(11):1355–61 — 328 women; pelvic vein incompetence in 62% with chronic pelvic pain vs 19% of asymptomatic controls, OR 6.79. 3. Kaufman C, et al. Society of Interventional Radiology Practice Guidance Document on Venous-Origin Chronic Pelvic Pain in Women. J Vasc Interv Radiol, 3 Mar 2026 — post-embolization syndrome the most common complication; coil migration and pulmonary embolism rare; assess left renal vein compression before ovarian vein embolization; left common iliac vein compression can cause secondary reflux. 4. Kashef E, Evans E, Patel N, Agrawal D, Hemingway AP. Pelvic venous congestion syndrome: female venous congestive syndromes and endovascular treatment options. CVIR Endovasc 2023;6:25 — technical success 96–100%; long-term symptomatic relief 70–90%; complications 2–3%; recurrence 10–40%; venography the gold standard; chronic pelvic pain 15% of women 18–50, unexplained in 61%. 5. Ignacio EA, Dua R, Sarin S, et al. Pelvic congestion syndrome: diagnosis and treatment. Semin Intervent Radiol 2008;25(4):361–8 — venogram criteria (ovarian vein >6 mm, reflux, tortuous collaterals, delayed clearance); femoral access; coils + sclerosant; bilateral ovarian and internal iliac treatment; post-procedure pain “usually less than after arterial embolization”; hysterectomy residual pain 33%, recurrence 20% (Beard 1991 / Carter 1998). 6. Maratto S, Khilnani NM, Winokur RS. Semin Intervent Radiol 2021;38(2):233–8 — asymptomatic renal-donor cohort, nearly half with dilated pelvic/ovarian veins 7–12 mm (citing Rozenblit). 7. EMBOLIZE trial, ClinicalTrials.gov NCT06168058 — randomized, single-blinded, embolization vs venography alone; enrolling since Aug 2025.

Candidacy

Who this is for — and who it isn’t.

The full “how we decide” — the self-check, the workup step by step, every option — is on the pelvic congestion syndrome page. The short version:

Embolization may be right for you if:

  • Pelvic pain for more than six months that’s dull, heavy, or dragging — worse the longer you’re upright, better lying down
  • Your workup points at your veins — the pattern fits, and the imaging shows dilated or refluxing pelvic veins
  • Your imaging was called “normal” — or mentioned dilated pelvic veins nobody followed up — and the gynecologic workup hasn’t explained the pain
  • Medication that quiets your cycle helped only while you were on it, or you don’t want to stay on it
  • You’ve been told hysterectomy is the next step, and you want a real diagnosis first — or you’ve already had one and the pain stayed
  • You want to avoid an incision and a general anesthetic, or you can’t take weeks off

It may not be right if:

  • Your symptoms don’t follow the venous pattern — we’ll say so at the consultation
  • Your scan shows dilated veins but your symptoms don’t match — we won’t treat a picture
  • The workup finds another cause — in which case you’ll leave knowing what it is
  • The venogram shows the pooling is being driven by a compressed vein upstream — a different problem with a different treatment, and we’ll explain it
  • You’re currently pregnant
  • You have an active infection, significantly impaired kidney function, or you’ve had a serious reaction to X-ray dye

We turn away patients who aren’t candidates for what we do. Routinely. If it isn’t your veins, you’ll hear that too — and we’re glad to share our imaging and findings with your other doctors.

Your care team

The doctors who perform pelvic congestion embolization here.

Pelvic congestion embolization at ARV Centers is performed by Board Certified Vascular and Interventional Radiologists — the same team that performs our uterine fibroid and adenomyosis embolization procedures.

Meet the whole team →

After your procedure

You go home with the doctor’s cell number.

When you go home, you take the on-call doctor’s cell phone number with you. Not an answering service — the doctor.

And you don’t have to wonder whether to bother us: we call you the next day to check in. Every patient, every procedure. Most women who reach us about this have spent years being told it was “normal.” The least we can do is not leave you alone with it afterward.

Straight answers

Questions patients actually ask.

“Does it hurt?”

The procedure itself, no — you’re sedated and comfortable, the pinhole at the groin is numbed, and most women describe pressure rather than pain. The first few days afterward are the hard part. As the treated veins close, expect a deep pelvic ache and sometimes a low-grade fever for a few days — the body’s normal reaction to a closed vein, and in the published experience generally milder than the cramping after fibroid embolization.³ ⁵ You go home with a plan and real pain medication, we call you the next morning, and you have the on-call doctor’s cell number if it isn’t behaving.

“Will I be awake?”

You get twilight or moderate sedation through an IV — relaxed and drowsy, breathing on your own. Not general anesthesia. No breathing tube, no operating room. It is still sedation, so you’ll need a driver to take you home — no exceptions.

“Is the diagnosis really confirmed and treated on the same day? What if the venogram doesn’t confirm it?”

Yes — when it confirms. The venogram is the reference standard for this diagnosis:⁴ the doctor watches, in real time, how blood actually moves through your pelvic veins, measures the ovarian veins, and looks for backward flow. If what we see matches what you feel, we treat right then, through the same pinhole. If it doesn’t confirm, nothing is closed — the catheter comes out and you go home with a real answer and your images, which we’re glad to share with your other doctors. That outcome isn’t a failure. It’s the point of confirming first.

“The coils and the foam — do they stay in? Can I feel them? What about an MRI?”

The foam does its work and is absorbed. The coils stay: small, soft, and permanent, made of the same materials used in vascular procedures for decades, sitting inside a vein high in your abdomen. You won’t feel them. Rarely, a coil can move out of position, which is one reason technique and vein selection matter³ — and one of the things we’ll go over with you before you decide. Airport scanners: no. MRI: the coils are MRI-compatible, but always tell the technologist what’s in you.

“What are the risks?”

Across the published reviews, complications run about 2–3%, and most of that is the post-procedure ache and low-grade fever described above, which settles in a few days.⁴ In the randomized trial there were no major complications.¹ The rare serious ones — a coil moving out of position, a clot travelling to the lung — are recognized, uncommon, and exactly what your physician will go through with you at the consultation.³ Occasionally a vein goes into spasm and can’t be fully treated in one sitting; that happened to about 1 woman in 50 in the trial.¹

“How soon will I feel better — and how long does it last?”

The first few days are ache. Then, over the following weeks, the heaviness eases as the pooled blood clears and the swollen veins shrink back down. Across the published series, 7 to 9 in 10 women get meaningful, lasting relief⁴ — and pain returns in roughly 1 in 10 to 4 in 10 over time.⁴ We print both numbers because you deserve both. If it does come back, we look again with a venogram, and re-treatment is possible.

“What if the pain comes back?”

It can — in roughly 1 in 10 to 4 in 10 women over time, in the published series.⁴ Sometimes a treated vein reopens; sometimes a different vein takes over the job. If it happens, we look again with a venogram, and re-treatment is possible. We’d rather you hear that now than be surprised later. We won’t call this a cure.

“I’ve already had a hysterectomy. Can this still help?”

Possibly — because the veins that cause this aren’t in the uterus. That’s why, in the published surgical series, about 1 in 3 women had pain that persisted after hysterectomy and 1 in 5 had it return.⁵ If your workup shows the ovarian or pelvic veins are still there and still leaking, they can be closed the same way. If it shows something else, you’ll leave knowing what.

“What about May-Thurner or “nutcracker” — the compressed veins upstream?”

Part of the venogram is looking for them. Sometimes the pooling in the pelvis is being driven from above — a squeezed left kidney vein (“nutcracker”) or a squeezed left pelvic vein (May-Thurner) backing blood up into the pelvic veins.³ The current professional guidance specifically recommends checking for kidney-vein compression before the ovarian vein is closed,³ and treatment is different when compression is the cause. If we find it, we’ll tell you, and we’ll explain what it changes — the May-Thurner treatment page covers that route.

“Why didn’t my gynecologist mention it? Is it experimental?”

It isn’t experimental. There’s a randomized trial in which the comparison group had the same catheter procedure without the treatment, and the treated women did significantly better at one year with no major complications;¹ and in 2026 the Society of Interventional Radiology published formal practice guidance for it.³ The reason it may never have come up is that it isn’t performed by gynecologists. Your gynecologist looks for gynecologic causes — that’s their job, and they’re good at it. Veins are a vascular problem, treated by interventional radiologists: a different specialty, with a different referral network. Nobody’s fault; a gap in the map. What we won’t do is tell you anyone was wrong.

“Is it covered by insurance?”

Typically, yes. We do a complimentary benefits check before any procedure, usually ready the same day as your consultation, so you’ll know exactly where your plan stands before you decide anything — and any out-of-pocket cost is discussed with you before any procedure is performed. If a deductible or coinsurance is more than you want to pay at once, we offer Affirm, CareCredit, and in-house payment arrangements.

“Do I need a referral?”

Not for your initial consultation — call us directly. If your plan requires a referral or prior authorization for treatment itself, we’ll identify that during the complimentary benefits check and help you get it.

Free patient guide

Not ready to call? Start with the free guide.

Our physicians wrote a plain-English guide to embolization — the mechanism behind our knee, shoulder, and fibroid programs: what it treats, what the studies show, and who it’s for. No appointment required, and no follow-up phone call unless you ask for one.

We’ll email your guide plus occasional patient education. Unsubscribe anytime. Privacy policy.

Bring the story. You’ll sit with a physician who will look at your veins, tell you plainly what they see — and, if it fits, close them without surgery.

Bring your imaging — the discs, not just the reports — and the list of who you’ve seen and what they said. Call us directly, or send this form and we’ll call you to schedule. We do a complimentary benefits check before any procedure. No surprises. Want a head start? Download the pelvic congestion intake packet and fill it in at home.

210-405-1335

Consultation hours

  • Monday–Thursday8:00–5:00
  • Morning · last consult11:30 AM
  • Afternoon · last consult4:30 PM
  • FridayProcedures only

Closed on major holidays.

3212 Napier Park, San Antonio, TX 78231

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No referral or prior authorization needed for your initial consultation. Want a head start? Download the pelvic congestion intake packet (PDF) and bring it filled in.

Rather book by phone? Call (210) 405-1335.