"The Leg Pain Clinic is amazing!! I walked out with less pain than I walked in with! Dr. Anwar is amazing and I love his bedside manner!! I didn't want another knee replacement surgery and now I don't have to get one!!"
Chronic Deep Venous Thrombosis
Minimally invasive treatment for long-standing blood clots that restores venous flow. No surgery required.
Chronic Deep Venous Thrombosis explained
Chronic deep venous thrombosis affects patients in Houston who have had blood clots in the deep leg veins that have not fully resolved, causing persistent swelling, heaviness, and aching that can last for years. When clots become chronic, the vein walls and valves sustain damage and normal venous flow is impaired. Dr. Anwer, a Stanford Fellowship trained interventional radiologist, uses catheter-directed techniques to treat chronic DVT and restore normal venous flow without open surgery. Early treatment reduces the risk of post-thrombotic syndrome, a debilitating long-term complication of untreated DVT.
Dr. Anwer treats chronic DVT using catheter-directed techniques under image guidance. A thin catheter is inserted through a pinhole in the leg and guided to the clot. Thrombolysis, angioplasty, or stenting restores venous flow depending on the disease extent. Approximately 60 minutes, no general anaesthesia.
Is this the right treatment for you?
Every patient is different. These four areas will help you understand whether Chronic Deep Venous Thrombosis treatment at LPVI is the right fit.
Am I a good candidate?
Chronic DVT treatment at LPVI is suited to patients with confirmed residual thrombus in the deep leg veins causing ongoing symptoms such as persistent swelling, leg heaviness, aching, or skin changes. Candidates typically have DVT confirmed on venous ultrasound or MRI venography. Dr. Anwer reviews your imaging personally at your first consultation and will assess the extent of the clot burden, the degree of venous obstruction, and whether catheter-directed treatment is appropriate for your specific anatomy and symptom severity.
Symptoms we treat
Chronic DVT symptoms develop when a blood clot in the deep veins does not fully resolve, leaving persistent venous obstruction and valve damage. The most common symptoms are ongoing leg swelling, a heavy or tired feeling in the affected leg, and aching that worsens after prolonged standing or activity. Skin changes around the ankle, including discolouration or thickening, indicate more advanced disease. Some patients develop venous ulcers. If your DVT symptoms have persisted despite anticoagulation, a specialist assessment with Dr. Anwer in Houston is the right next step.
The procedure
Dr. Anwer performs catheter-directed DVT treatment as an outpatient or short-stay procedure using real-time imaging guidance. A thin catheter is inserted through a pinhole in the leg and guided to the site of chronic venous obstruction. Depending on the extent and nature of the clot, thrombolysis to dissolve residual clot, balloon angioplasty, or stent placement may be used to restore normal venous flow. The procedure takes approximately 60 minutes. There are no surgical incisions and no general anaesthesia required.
Recovery and results
Recovery from catheter-directed DVT treatment at LPVI is straightforward for most patients. Most are discharged the same day or the morning after and return to light daily activity within one to two days. Walking is encouraged early to support venous circulation. Compression stockings are typically worn for a period after treatment to support the treated vein. Leg swelling and heaviness improve gradually over the following weeks as venous flow is restored. Dr. Anwer will arrange follow-up imaging to confirm the result and monitor your venous function.
What's holding
you back?
You may have more options than you've been told. Answer four quick questions and our engine matches you to the right minimally invasive treatment and connects you directly with Dr. Anwer.
Common symptoms
You do not need all of these. Even two or three are worth discussing with Dr. Anwer at your first consultation.
How Dr. Anwer treats chronic deep venous thrombosis
Dr. Anwer treats chronic DVT using catheter-directed techniques under image guidance. A thin catheter is inserted through a pinhole in the leg and guided to the clot. Thrombolysis, angioplasty, or stenting restores venous flow depending on the disease extent. Approximately 60 minutes, no general anaesthesia.
Consultation with Dr. Anwer, venous imaging review
Personalised DVT treatment plan, procedure date confirmed
Catheter-directed procedure, 60 minutes, image guidance
Discharge within one to two days, follow-up imaging arranged
Minimally invasive vs conventional treatment
Chronic DVT is typically managed with long-term anticoagulation, which prevents new clot formation but does not remove existing chronic thrombus or restore venous flow. Surgery for DVT is rarely performed due to its complexity and risks.
- Major surgery or invasive procedure
- General anaesthesia required
- Hospital stay of 1 to 5 days
- Recovery of 4 to 12 weeks
Dr. Anwer treats the chronic clot directly using catheter-directed techniques under image guidance. No general anaesthesia, no open surgery. Restoring venous flow reduces long-term complications and significantly improves daily symptoms.
- Outpatient, no hospital admission
- Light sedation or local anaesthesia
- Pinhole incision, no stitches
- Same-day or next-day recovery
Chronic DVT is underestimated as a long-term problem. Many patients are simply continued on blood thinners without addressing the obstruction itself. When the clot burden is significant, treating it directly can make a substantial difference to quality of life.
What our patients are saying
"Dr. Bilal very professional and awesome physician. My left knee pain went down from 9 to 3. Front staff, nurses, OR staff all were amazing and very professional."
"Brought my mother in law to get help with her knees. She literally could not walk. After procedure she walked to car with minimal discomfort. Each day is getting better and better. I rate the entire place 10 of 10."
"Fantastic doctor, very thorough, explained everything. Staff is outstanding!!! I first heard of them via Facebook and after looking more into it I saw they can treat shoulder pain too. I feel great after my procedure."
"Doctor Anwer and his staff is totally awesome, they are very kind and respectful. Dr. Anwer does amazing work. I love them all."
"Excellent staff and doctor! Excellent care and caring!!! I would recommend this clinic to anyone who is looking for a caring, professional medical team."
"My husband thinks very highly of the doctor. The entire experience from start to finish was professional and compassionate."
"Sabrena Cummings: Fantastic doctor very thorough explained everything. Staff is outstanding!!!"
"The Leg Pain Clinic is amazing!! I walked out with less pain than I walked in with! Dr. Anwar is amazing and I love his bedside manner!! I didn't want another knee replacement surgery and now I don't have to get one!!"
"Dr. Bilal very professional and awesome physician. My left knee pain went down from 9 to 3. Front staff, nurses, OR staff all were amazing and very professional."
"Brought my mother in law to get help with her knees. She literally could not walk. After procedure she walked to car with minimal discomfort. Each day is getting better and better. I rate the entire place 10 of 10."
"Fantastic doctor, very thorough, explained everything. Staff is outstanding!!! I first heard of them via Facebook and after looking more into it I saw they can treat shoulder pain too. I feel great after my procedure."
"Doctor Anwer and his staff is totally awesome, they are very kind and respectful. Dr. Anwer does amazing work. I love them all."
"Excellent staff and doctor! Excellent care and caring!!! I would recommend this clinic to anyone who is looking for a caring, professional medical team."
"My husband thinks very highly of the doctor. The entire experience from start to finish was professional and compassionate."
"Sabrena Cummings: Fantastic doctor very thorough explained everything. Staff is outstanding!!!"
Common questions about Chronic Deep Venous Thrombosis
Yes. Catheter-directed treatment for chronic DVT is covered by Medicare and most major insurance plans in Houston when venous obstruction has been confirmed on imaging and is causing symptoms. Our team at LPVI will verify your specific coverage and confirm prior authorisation requirements before your consultation. Call us on 713-242-1139 and we will check your benefits and answer any questions about chronic DVT treatment costs in Houston.
Recovery from catheter-directed DVT treatment at LPVI is quick for most patients. Most are discharged the same day or the morning after and return to light daily activity within one to two days. Walking is encouraged early to support venous flow. Compression stockings are typically worn for several weeks after treatment. Leg swelling and heaviness improve gradually over the following weeks as venous circulation is restored. Dr. Anwer will arrange follow-up imaging to confirm the treatment outcome.
Catheter-directed DVT treatment is most appropriate for patients with confirmed chronic venous obstruction causing persistent symptoms such as leg swelling, heaviness, or skin changes that have not resolved with anticoagulation. Dr. Anwer reviews your venous imaging personally at your first consultation and will assess the extent of the obstruction and whether intervention is likely to improve your symptoms. Not all DVT presentations require intervention, and Dr. Anwer will give you an honest assessment of your options.
Post-thrombotic syndrome is a long-term complication of DVT in which persistent venous obstruction and valve damage cause chronic leg swelling, pain, skin changes, and in severe cases venous ulcers. It affects up to 50 percent of patients with a significant DVT if the obstruction is not treated. Early catheter-directed treatment to restore venous flow at LPVI can reduce the risk of developing post-thrombotic syndrome and improve long-term venous function significantly.
Anticoagulation prevents new clot formation and reduces the risk of pulmonary embolism but does not remove existing chronic thrombus or restore venous flow through an obstructed vein. Catheter-directed treatment at LPVI directly addresses the obstruction using thrombolysis, angioplasty, or stenting to open the blocked vein and restore normal circulation. This reduces the chronic symptoms caused by the obstruction and lowers the risk of long-term complications that anticoagulation alone cannot prevent.
Most patients notice an improvement in leg swelling and heaviness within the first two to four weeks after catheter-directed DVT treatment. The extent and speed of improvement depends on the duration and severity of the venous obstruction. Dr. Anwer will monitor your progress with follow-up venous imaging to confirm the result. The majority of patients treated at LPVI in Houston report significant improvement in leg symptoms within the first month, with continued benefit as venous circulation stabilises.
We accept most major insurance plans
Dr. Anwer treats chronic deep venous thrombosis at LPVI clinics in Houston and Webster, serving patients from Sugar Land, Katy, Pearland, Pasadena, and League City. Catheter-directed DVT treatment is an outpatient or short-stay procedure covered by Medicare and most major insurance plans. Patients across Greater Houston choose Dr. Anwer because he is Stanford Fellowship trained and treats the underlying venous obstruction directly rather than relying on anticoagulation alone.
Ready to treat your chronic DVT without surgery?
Speak with Dr. Anwer about your chronic deep venous thrombosis. Same-day appointments available. Most insurance accepted.
This information is not a medical diagnosis. A consultation with Dr. Anwer will confirm your treatment options. Individual results may vary.


