ClosureFast is the brand name for Radiofrequency Ablation (RFA), a vein treatment. It involves using radiofrequency energy to treat varicose veins by closing the veins. Given its minimally invasive nature, it offers several advantages compared to traditional surgical methods, making it an appealing option for varicose vein treatment.

Dr. Manish Taneja

Vascular Specialist, Supreme Vascular and Interventional Clinic

Introduction to ClosureFast

Varicose veins are a common vascular condition that affects individuals of all ages, genders, and ethnic backgrounds. In Singapore, where the prevalence of varicose veins is notable, finding effective treatments is crucial. This is where ClosureFast varicose veins treatment offers benefits over traditional methods. It’s a cutting-edge, minimally invasive treatment for varicose veins. Due to its novel nature, not many people know about it or where to get treatment. At our specialized varicose veins clinic in Singapore, the Supreme Vascular and Interventional Clinic, our varicose veins specialist, Dr. Manish Taneja, can help with the ClosureFast procedure.

Don’t have time to read the full blog post? Watch the video here for a quick overview in our video gallery or subscribe for updates to our YouTube channel and enjoy our quick and comprehensive video series with expert advice, essential insights, guides, how-to’s, and the answers to common questions.

strong man doing leg swings

Varicose Veins and Minimally Invasive Treatments

Varicose veins is a condition characterized by swollen and twisted veins. Beyond the cosmetic concerns it brings, it also causes discomfort. It can cause pain and aches, itchy skin, burning sensation, muscle cramps, or leg swelling. If untreated, serious complications such as deep vein thrombosis, inflammatory skin conditions, venous diseases, and ulcers can arise.

Typically, treatment involves laser surgery to reduce the varicose veins. Fortunately, advancements in medical science have brought ClosureFast, a minimally invasive treatment of varicose veins. Aside from being more effective, it does not involve open surgery.


What is ClosureFast?

ClosureFast is the brand name for Radiofrequency Ablation (RFA), a vein treatment. It involves using radiofrequency energy to treat varicose veins by closing the saphenous veins. Given its minimally invasive nature, it’s administered on an outpatient basis.

During treatment, a varicose veins specialist in Singapore will use a Radio Frequency Ablation Chronic Venous Insufficiency (CVI) system, which contains:

  • ClosureFast endovenous radiofrequency ablation catheter: Directs heat to the targeted 7cm vein segment in 20-second intervals.
  • ClosureFast endovenous radiofrequency ablation stylet: Can be used as the primary or adjunct treatment and leaves minimal scarring at the puncture point.
  • ClosureFast radiofrequency generator: Generates and delivers radiofrequency energy to the ClosureRFS stylet and ClosureFast catheter suitable for treating CVI.

The procedure is often done while you lie on a table or bed. Once your leg is prepped, you may be given something to ease your nerves, but that’s often not required. However, a local anesthetic will be applied in the area where the vein will be accessed. The varicose veins specialist will then insert the RFA catheter inside the vein with the guidance of a vascular ultrasound. It will then disseminate mild heat to treat the vein’s inner lining. Once the process is over, you’ll put on a thigh lift, after which you’ll be free to leave. 

Steps of ClosureFast Procedure

Local Anesthesia:
Before the ClosureFast procedure begins, the patient is usually given a local anesthetic to numb the area around the targeted vein. This helps minimize discomfort during the procedure.

Insertion of ClosureFast Catheter:
A catheter is then inserted into the diseased vein under ultrasound guidance. The catheter delivers radiofrequency energy to the vein wall, heating and contracting the collagen in the vein. This process causes the vein to collapse and seal shut.

Closure and Recovery:
After the targeted vein is treated, the thermal catheter is slowly withdrawn, and pressure is applied to the entry site to prevent bleeding. The closed vein is eventually absorbed by the body, and blood is rerouted to healthier veins.

Patients are often encouraged to wear compression stockings and engage in light walking to promote healing and reduce the risk of blood clots.

Advantages of ClosureFast

ClosureFast offers several advantages compared to traditional surgical methods, making it an appealing option for varicose vein treatment. Some key benefits include:

  • Minimally Invasive: ClosureFast eliminates the need for open surgery, reducing the risk of complications and promoting faster recovery.
  • Patient Comfort: The procedure is performed under local anesthesia, ensuring minimal discomfort during and after the treatment.
  • Quick Recovery: With minimal downtime, you can resume normal activities shortly after the procedure.
    Effective Results: ClosureFast has demonstrated high success rates in treating varicose veins, providing long-term relief.

Varicose Veins Procedures and Treatment

There are various techniques available to treat varicose veins depending on the clinical presentation. Minimally invasive procedures including endovenous laser ablation and radiofrequency ablation provide faster recovery times, reduced pain, and minimal scarring, ensuring a smoother and more comfortable experience for patients seeking relief from varicose veins.

Difference Between ClosureFast and Endovenous Lasers 

ClosureFast and endovenous lasers share the goal of using thermal technology to deliver heat to treat varicose veins. However, they differ in the method of delivery. ClosureFast utilizes radiofrequency energy, while endovenous lasers use laser energy. Both methods aim to heat and close off problematic veins, but the choice between them depends on individual patient needs and the recommendations of the vascular specialist.

With the advent of ClosureFast, treating varicose veins is no longer an invasive process with an extended recovery period. In addition to not feeling any discomfort, you’ll go home immediately after the procedure and resume normal activity within a few days. Your varicose veins specialist may suggest you to refrain any strenuous activities for a few weeks post treatment.

Visit the Supreme Vascular and Interventional Clinic for ClosureFast Treatment Options

Don’t let the discomfort of varicose veins impact your quality of life. At Supreme Vascular and Interventional Clinic, we offer ClosureFast varicose veins treatment in Singapore. Our vascular specialist, Dr. Manish Taneja, is ready to attend to you.
Contact us today for more information or to schedule a consultation at a specialized varicose veins clinic you can count on.

Find the Right Doctor

From family and internal medicine to specialist, Dr. Manish Taneja is the best in the field.

As a vascular and interventional radiology specialist, Dr Manish Taneja looks after peripheral vascular disease, aneurysms, dialysis interventions, venous diseases like deep vein thrombosis, and varicose veins/spider veins/reticular veins. He is also competent in performing newer endovascular procedures such as uterine artery embolization, prostate artery embolization, genicular artery embolization, and erectile dysfunction interventions.

Dr. Manish Taneja also has extensive experience in performing all vascular interventions, non-vascular interventions and interventional oncology procedures.

Read More About Vein Diseases Treatments on Our Blog

To dive deeper into the types of vascular treatments, head over to our clinic’s blog. Read our recommended venous diseases related blog posts to stay informed. Watch our helpful videos to learn more:


Varicose Veins Resources

Explore our varicose veins and spider veins resources for patients. Gain insight into the diagnosis and treatment of varicose and spider veins conditions, their underlying causes, symptoms, and complications. Connect with your vascular health

Keep Varicose Veins and Spider Veins at Bay


If your legs feel sore persistently, achy when standing long periods, or maybe you notice blue or purple veins even bulging in the area, chances are these symptoms of varicose veins and spider veins could lead to other serious venous diseases such as Deep Vein Thrombosis (DVT), Chronic Venous Insufficiency (CVI), or Leg Swelling due to increased pressure forming larger blood clots over time. Varicose veins are fully treatable with minimally invasive procedures and treatments offering minimal downtime and quick recovery preventing further complications. Long term effects of untreated varicose veins can hinder your daily life and impact your health.

The Supreme Vascular and Interventional Clinic in Singapore is here to diagnose and treat varicose veins smoothening patients’ experience to find relief and comfort. As a vascular and interventional radiology specialist based in Singapore, Dr. Manish Taneja looks after a spectrum of venous diseases, peripheral vascular malformations, and peripheral arterial disease. Dr. Manish Taneja also has extensive experience in performing all vascular interventions, non-vascular interventions and interventional oncology procedures.

Venous Diseases Treatments

The Supreme Vascular and Interventional Clinic is your “go-to” facility for various vascular conditions and pain management. To arrange an appointment with Dr. Manish Taneja, our spider veins and varicose veins specialist, contact us. You can also call us at (+65) 6904 8084 for a consultation.