What is DVT?

Deep vein thrombosis is a kind of vascular disorder. It happens when a thrombus (blood clot) forms in the deep vein anywhere in the body. It especially develops in the legs. This is a grave ailment and can actually be fatal for you unless you seek treatment right away.

What are the symptoms of DVT?

A worrying feature of deep vein thrombosis is that in most cases it shows no symptoms in the earlier phases. Moreover, what makes diagnosis hard is that even when symptoms manifest, they are very similar to those of other disorders like tissue or muscle inflammation or arthritis.

Here are some typical deep vein thrombosis symptoms:

  One or both of your legs become swollen
  Your legs feel tender and hurt a lot in all postures
  The skin of your legs always feel hot to the touch
  Your skin looks blotchy or discoloured
  You bleed when you cough
  Wheezing and breathing problems
  Dizziness
  Frequent and sharp chest pain

Who is susceptible to DVT?

Deep vein thrombosis usually happens when you sit or lie in one position for long stretches of time especially when you are recuperating after an illness or surgery. It can also happen to you for other reasons-

  Injury: An injury to your legs can narrow the blood vessels and that reduces the blood flow through the veins. That is why blood clots can develop there.
  Pregnancy: The additional weight that woman has to carry in the course of her pregnancy exerts extra pressure on the veins of the legs and pelvis and thus clots may form in the veins.
  Contraceptive pills: Birth control pills raise the chances of a woman getting deep vein thrombosis by four times.
  Obesity: Obesity means forcing extra pressure onto your veins.
  Smoking: Smoking interferes with the flow of blood through your veins and raises the possibility of getting blood clots.
  The family history of deep vein thrombosis: if anyone in your family has deep vein thrombosis, you might contract it too because it is hereditary.

Complications:

DVT becomes lethal if the blood clot becomes dislodged and travels from the legs to the lungs, it can cause a pulmonary embolism. This can lead to blockage of the artery of the lung and in that case, a person may die.

Treatment for deep vein thrombosis:

Treatment for DVT includes both invasive and non-invasive vascular techniques.

  Blood-thinning medicines: They prevent blood platelets from clumping together and reduce the size of the existing clots.
  Thrombolytic drugs: If medicines are not effective, work, these drugs will be injected into your veins. They travel down the veins to where the blockage is and disintegrate the clots so that blood can once again flow through the vein uninterrupted.
  Compression stockings: They exert pressure on the vein containing the clot, prevent it from moving, and do not allow new clots to develop. You have to wear them throughout the day.
  Surgery: In very rare cases, when non-invasive methods have no effect, you may have to undergo a kind of vascular surgery called venous thrombectomy. The surgeon will make a minute incision in the vein where the clot is lodged, siphon it out and then repair the damaged vein.

Deep vein thrombosis is easily curable with treatment. Do not delay it, as DVT has the potential to kill you.

Deep Vein Thrombosis (DVT) - All You Should Know About It!

Varicose veins are a painful swelling of the veins of the legs. The raised veins just under the top layer of the skin appear to be purplish blue. It is a common affliction and affects nearly 25% of the adult population all across the world and 10 million people in India are diagnosed with it every year.

What are varicose veins?

Varicose veins are enlarged veins that typically develop in the legs and the feet. This condition is triggered when there is something wrong with the valves of the veins. When the valves do not function properly, blood flow to all parts of the body is disrupted. Since the legs are the farthest part of the body from the heart, gravity makes it difficult for blood to flow up to the heart.

Varicose veins are common in people who are:

  Above 50 years of age
  Lead a lifestyle that requires them to be on their feet for long stretches of time
  Pregnant
  Menopausal
  Obese

If someone in your family has a history of varicose veins, you are quite likely to get it too.

What are the symptoms of varicose veins?

Varicose veins are characterized by the following symptoms-

  The most obvious symptom is the large twisty veins
  Pain all down the length of your legs
  Discolouration of the skin of the legs and feet

Diagnosis of varicose veins:

The doctor usually diagnoses varicose veins by a physical examination. She/he may also suggest an ultrasound to determine if your flow of blood is affected. It is a non-invasive procedure and is done with the help of high-frequency sound waves.

You may even have to undergo a venogram. The doctor injects a coloured dye into your veins and X-rays them. The dye gives an indication of how well your blood is flowing through the veins.

Treatment of varicose veins:

There are several treatment options for varicose veins-

  Compression socks: these socks exert pressure on the swollen veins and make it easy for blood to flow upwards. They also bring down the swelling.

Vascular surgery:

When the other methods do not work, doctors prescribe vascular surgery.

  Ligation and stripping: Through this surgery, the surgeon ties up the vein to prevent pooling of blood in the veins and sometimes the vein itself is removed.
  Sclerotherapy: The doctor injects a chemical right into the varicose vein which closes it.
  Radiofrequency ablation: The doctor uses radiofrequency to heat the varicose vein up, which makes the walls collapse

Lifestyle changes:

A few changes to your lifestyle can help you avoid the menace of varicose veins-

  If your job requires you to stand for extended periods, squeeze out a few minutes so that you can sit down, that allows blood to flow normally up to your legs.

  If you are overweight, lose weight immediately.

  Exercise regularly because that keeps your heart healthy and improves blood circulation.

Varicose veins are a painful condition that can be avoided if you implemented a few changes to how you live your life and even if you do get them, there are ways to cure them.

Varicose Veins - How Does Vascular Surgery Help?

Dialysis is a very important and life-saving procedure. It is performed to replace kidney function in case of renal failure. Wastes and extra fluids in the blood are filtered out during this process. To be able to perform Dialysis, the connection between the patient s bloodstream and the equipment for performing Dialysis (dialyzer) outside the body is established. This connection is created through Dialysis Access Surgery. It is a type of Vascular Surgery which forms the vascular opening for access during Dialysis. Thus, Dialysis Access Surgery is the lifeline for the survival of the patient.

Types of Vascular Access for Dialysis- 
There are three types of Vascular Access for Dialysis: Arteriovenous (AV) Fistula, Arteriovenous (AV) Graft, and Venous Catheter.

  Arteriovenous (AV) fistula is a surgical connection of an artery to a vein. An AV fistula is usually placed in the upper arm or in the forearm. It causes extra blood to flow into vein making it grow large. A larger vein hence provides easy access to blood vessels. An AV fistula is preferred over other methods as it lasts longer than other methods of access and provides a good flow of blood. Moreover, it is less prone to infection and blood clots than other methods. Before an AV Surgery, a Vessel Mapping Test is sometimes performed for assessing the blood vessels most suitable for Dialysis. An AV fistula is performed under local anaesthesia and requires two to three months for maturation before hemodialysis. If it fails to mature, the procedure is repeated.

  Arteriovenous (AV) graft is performed when AV fistula fails to mature. It is hence the second most preferred choice for long-lasting access to vascular tissues for Dialysis. An AV graft is a looped plastic tube which establishes a connection between an artery and a vein. Like AV fistula, AV graft is also performed under local anaesthesia. It is slightly more difficult to maintain than an AV fistula.

  A venous catheter is used for short- term hemodialysis. It is a tube which is inserted into chest, neck, leg, or near groin for vascular access. After exiting the body, the tube splits into two halves. In the case where a renal disease has made quick progression leaving little or no time for the AV fistula or AV graft to mature, a venous catheter is used to establish the required vascular connection. This procedure is also performed under local anaesthesia. It is a tool for emergencies but is not suited for long- term use. It can cause narrow vein due to an infection,
scarring, or blood clot. If long- term venous catheter is used, it is tunnelled under the skin which has fewer problems associated with it and is more comfortable. 

How to Care for a Vascular Access?
  Get checked for infections and other problems before each hemodialysis session;
  Use the operated site for access only for the intended use;
  Always keep the access clean;
  Prevent cutting or bumping the access;
  Check for thrill/ vibration in the access and inform the doctor if any;
  Do not put pressure on the access site;
  Do not put blood pressure cuff around the access arm;
  Do not wear jewellery or tight-fitting garments over the site;
  Do not lift a weight.

Take Away-
Vascular Surgery for Dialysis is performed to provide vascular access for the procedure. AV fistula is the most preferred type followed by an AV graft. A venous catheter is recommended to be used only in case of an emergency when there is not much time left for the other two options to mature.

Vascular Surgery - Can It Help For Dialysis?

Peripheral vascular disease (PVD) is a circulation issue that affects the veins and blood vessels outside of the brain and heart. PVD commonly strikes the veins that supply blood to the arms, legs, and organs situated beneath the stomach. These are the veins that are located away from the heart. They are known as peripheral vessels.

In PVD, the width of the veins get limited. Narrowing is normally created by arteriosclerosis. Arteriosclerosis is a condition where plaque develops inside a vessel. It is additionally called 'solidifying of the arteries'. Plaque acts towards reducing the amount of blood and oxygen that is supplied to the arms and legs. As the plaque development advances, clumps may develop, which may further affect the vessel.

There are two main types of PVDs:

    Functional PVD: This doesn't include physical issues in the veins. It causes accidental side effects. Typically,these fits happen suddenly.
    Organic PVD: This includes changes in the vein structure. This sort of PVD causes irritation, tissue harm, and blockages.

The most well-known reasons for functional PVDs are as follows:

    Emotional stress
    Smoking
    Cold temperatures
    Operating Vibrating machinery

The common causes of such natural PVDs are given below:

    Smoking
    High circulatory strain
    Diabetes
    High cholesterol

The symptoms include the following:

    Cramps
    Achiness
    Fatigue
    Burning

Diagnosis:

PVD can be diagnosed using interventional radiology (IR).

IRis a sub-claim of radiology that gives an image-guided diagnosis, and if required, includes treatment of the organs as well.It has developed as a first-line treatment in the administration of PVD.

Advantages:

IR medications are for the most part less demanding for patients than surgery, since they include no surgical cut.They are less painful and have shorter stays at the hospital. By and large, the patients are discharged on the same day the procedure is done. This mainly includes angioplasty and stenting. The procedure is as follows:

    Utilising imaging for direction, the interventional radiologist puts a catheter through the femoral artery in the crotch to the blocked vein in the legs.
    At that point, the interventional radiologist expands a balloon to open the vein that is blocked.
    Sometimes it is opened with a tiny metallic cylinder called astent.
    This is a treatment that does not require surgery; only a scratch in the skin the extent of a pencil tip.

Alternative measure:

Angioplasty and stenting have totally replaced invasive surgical methods. Early trials have proven IR to be as successful as surgery for some blood vessel and artery impairments. Earlier, extensive clinical experience demonstrated that stenting and angioplasty are favoured as first-line treatments for more procedures all through the body .

Doctors as well as patients who have been through the same, believe that IR is much better for PVD than invasive surgery, since it reduces the risk of infection.

Diagnosing Peripheral Vascular Diseases With Interventional Radiology

Blood flows through the tubes called as blood vessels. There are two networks of blood vessels   the arteries and the veins. The arteries carry pure or oxygenated blood from the heart to the various parts of the body. The veins, on the other hand, collect impure blood from all over the body and reach it to the heart. Blood flow in the veins is controlled via valves, which ensure blood does not flow in the reverse direction (against its desired direction of flow). The veins in the legs, which are farther from the heart, are quite thick and exert extra pressure to pump blood into the heart. They need to transport blood against gravity and so in people who are prone to stand for long hours, they can become thicker, swollen, twisted, and engorged. In severe cases, there could even lead to bleeding.

Some common causes for varicose veins are:

Damaged valves which are not able to control the flow of blood in the required direction.
Veins with a thin wall that are unable to control blood flow.
Risk factors: Though these are the suspected causes, there are specific risk factors which aggravate the condition of varicose veins.

Family history
Smoking
Occupations which require prolonged standing (construction jobs, painters, etc.)
Pregnancy
Obesity
Age, which reduces the elasticity of the veins
Surgery in the leg, which could have hampered the values or veins
There are quite a few symptoms of varicose veins. These are quite distinct and present as:

Swollen, ropy leg veins which can be blue
Pain, especially with prolonged standing
Tenderness on touching the veins
Itching and heaviness along the veins
Skin changes like scaling and dryness
Night cramps around the area
Susceptibility to bleed from these veins
While varicose veins are easy to diagnose given their distinct clinical presentation, some additional testing can involve the following:

Doppler ultrasound
Scanning
MRI
As said, prevention is better than cure; here are some preventive measures that can be really helpful:

Elevate legs as much as possible. When working, take short breaks to reduce stagnation and promote blood circulation
Quit smoking
Avoiding alcohol, as it causes venous dilation
Weight management
Avoid tight clothing and sitting with cross-legs for prolonged periods as they put a lot of pressure on the veins and valves
Follow a regular exercise regimen to improve blood flow in the legs, like walking or running
Starting from the least invasive to the most, this condition can be treated by:

Compression stocking (Ted hose or Jobst stocking) which improves circulation and reducing pain
Surgical options include sclerotherapy, laser treatment, and stripping off the vein. These are done in very severe cases, but quite rare.

Varicose Veins - How Best It Can Diagnosed?

Varicose veins are abnormal veins that usually appear as bulging, twisting, rope-like cords in the lower extremity. It is a very common condition, nearly affecting 25% of men and 40% women. Varicose veins occur when the valves in the veins do not properly function. As a result, blood cannot flow effectively.

Risk Factors

A number of factors can put you at risk of developing varicose veins. These may include  

  Heredity
  Gender
  Pregnancy
  Age
  Prolonged standing
  Obesity

Symptoms Associated with Varicose Veins

For many people, varicose veins develop without revealing any symptom. However, others may experience the following signs  

  Visible purple veins
  Heaviness in the calves
  Swelling and tenderness
  Leg tiredness
  Pain
  Blood clots

If the condition deteriorates, you may also encounter symptoms like  

  Ankle sores
  Skin ulcers
  Bleeding

If you have a severe case, your veins may rupture. Therefore, consult a doctor and get the condition treated before it worsens.

Treating Varicose Veins with Radiology

If conservative techniques   compression stockings, lifestyle changes, and others   fail to relive the symptoms or cure the condition, your doctor may recommend radiofrequency ablation for varicose veins.
Radiofrequency ablation involves using heat from an electric current produced by a radio wave to remove the damaged tissues. The procedure takes place in a hospital or a clinic under the supervision of a radiologist.
The specialist will first prep you up for the procedure   the appropriate leg will be prepared using sterile technique and you will be given local anaesthesia. Ablating the veins using laser takes only about a few minutes. Once the procedure is completed, the patient may be kept under observation briefly before being let off. However, he/she might have to wear a special compression stocking, as prescribed by the doctor, to speed up healing.

Varicose veins typically deteriorate over time despite making necessary lifestyle changes for pain management. The minimally invasive radiofrequency ablation procedure is an effective treatment for a condition as painful as varicose veins. It is safer than surgery with minimal risks. Since it is an outpatient procedure, the patient is allowed to walk away the same day.

Varicose Veins - Know All About Them!

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