What is Varicocele Embolization?

Percutaneous venous embolization is an interventional radiology method used in the treatment of varicocele. In this procedure, enlarged testicular veins causing varicocele are detected with the help of a catheter entered through a vein in the arm or leg and blocked with metal spirals (coils) or sclerosing agents.

Embolization is called "non-surgical treatment" or "minimally invasive" method because it does not require a surgical incision. The procedure is usually performed under local anesthesia and the patient can return home on the same day.

How is Embolization Performed?

1. Preparation

The patient is laid on the angiography table. The groin or neck area is sterilized and local anesthesia is applied.

2. Vascular Access

A thin catheter is placed via the femoral vein (groin) or jugular vein (neck).

3. Navigation

Under fluoroscopy (X-ray) guidance, the catheter is directed to the left renal vein and then to the testicular vein. Enlarged veins are visualized by giving contrast material (venography).

4. Embolization

Enlarged veins are blocked with metal spirals (coils), sclerosing agents, or occlusive particles. It is checked that the blood flow has stopped.

5. Termination

The catheter is removed, and pressure is applied to the entry site. The procedure takes a total of 30-60 minutes.

Comparison of Embolization vs Microsurgery

Feature Embolization Microsurgery
Method Via vein with catheter Surgical incision, under microscope
Anesthesia Local Local, spinal, or general
Success Rate 85-90% 99%+
Recurrence Rate 10-15% <1%
Hydrocele Risk None <1% (with microsurgery)
Procedure Time 30-60 min 45-60 min
Recovery 1-2 days 3-5 days
Radiation Present (fluoroscopy) None
Technical Failure 5-10% (vein anatomy) <1%

Advantages of Embolization

  • No surgical incision, only a needle hole
  • Local anesthesia is sufficient
  • Same-day procedure
  • Fast recovery (normal activity within 1-2 days)
  • No hydrocele risk

Disadvantages of Embolization

  • High recurrence rate: 10-15% (less than 1% in microsurgery)
  • Technical failure: The procedure may not be performed if the vein anatomy is not suitable
  • Radiation exposure: Use of fluoroscopy
  • Contrast reaction: Risk of rare allergic reactions
  • Coil migration: Very rare risk of spirals shifting
Expert Opinion

Embolization can be evaluated in patients who cannot have surgery due to surgical risks or in patients who have had surgery before and developed recurrence. However, microsurgical varicocelectomy is recommended as the first option in infertility treatment because it offers higher success and a lower recurrence rate.

Who is it Suitable For?

Embolization Can Be Preferred

  • Patients at high risk for surgery
  • Patients who develop recurrence after surgery
  • Patients who do not want a surgical incision
  • Patients at high risk for anesthesia

Microsurgery Should Be Preferred

  • If infertility is the main indication
  • If maximum success rate is desired
  • If radiation exposure is to be avoided
  • If there is bilateral (both sides) varicocele

Frequently Asked Questions About Embolization

Microsurgical varicocelectomy is considered the gold standard in infertility treatment. The success rate is 99%+, and the recurrence rate is <1%. Embolization is 85-90% successful and has a 10-15% recurrence rate. Embolization can be evaluated as an alternative in patients who cannot have surgery.

Yes, embolization does not require a surgical incision. A catheter is placed into the vein with a thin needle through the groin or neck area. Therefore, it is called "non-surgical" or "minimally invasive" method.

The recurrence rate after embolization is around 10-15%. This rate is significantly higher than the <1% rate in microsurgery. In case of recurrence, microsurgical corrective surgery may be required.

Yes, fluoroscopy (X-ray) is used during the embolization procedure, and this causes radiation exposure. However, the radiation dose is usually within safe limits. There is no radiation exposure in microsurgery.

Scientific References

  1. Iaccarino V, Venetucci P. Interventional radiology of male varicocele: current status. Cardiovasc Intervent Radiol. 2012.
  2. Bechara CF, et al. Percutaneous treatment of varicocele. Tech Vasc Interv Radiol. 2009.
  3. Jargiello T, et al. Long-term results of percutaneous embolization of varicocele. Eur Radiol. 2015.
  4. Practice Committee of ASRM. Report on varicocele and infertility. Fertil Steril. 2014.

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