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?

Coronary Artery Disease - Symptoms and Causes

Coronary artery disease is the disease in which the major blood vessels (coronary arteries) that supply blood, nutrients and oxygen to your heart get damaged or disease stricken. It is mostly caused due to the coronary artery getting plagued or inflamed. The consequent reduction in blood flow to the heart causes the various symptoms of coronary artery disease like angina (chest pain), short breath etc.

Symptoms:

Here is a list of a few symptoms that help in identification of the coronary artery disease.

1. Angina

Pressure or tightness may be felt in or near the area of the chest that results in pain. It is mostly felt in the middle or left side of the chest.

2. Shortness of breath

Another symptom of coronary artery disease is short breath, fatigue and a feeling of exertion.

3. Heart attack

Complete blockage of the coronary artery results in a heart attack that is a prominent symptom of coronary artery disease. A person may feel heavy pressure in the chest, pain in the shoulder or arm, sweating etc. prior to getting a heart attack.

Causes:

Coronary artery disease occurs when damage or injury is done to the inner layer of the coronary artery. This damage causes plaque, which are deposits made of fat, cholesterol and other cellular waste materials to accumulate near the damaged area of the artery. This process is known as atherosclerosis.

The various causes that result in coronary artery damage are listed below.

- Smoking
- High blood pressure
- Diabetes
- High cholesterol
- Obesity
- High stress
- Physical inactivity

Knowing Coronary Artery Disease - Symptoms and Causes

Many people know that smoking causes several problems including cancer, heart disease, and respiratory disease. However, there are other diseases occur because of smoking and chewing tobacco. Buerger's Disease is one such disease in which the blood vessels in legs and arms get blocked. This blockage will interfere in blood flow and results in forming blood clots. These clots will affect both legs and
hands.
Buerger's Disease is also known as Thromboangitis Obliterans. It is a type of vasculitis which causes inflammation in the blood vessels including thickening, narrowing, weakening, or scarring.
Buerger's Disease cannot be cured easily. However, by quitting the use of tobacco and smoking, one can limit the symptoms from getting worse. If a person is not able to quit smoking, he/she might end up
suffering from severe tissue damage. One can also even lose toes, fingers, or other parts of the limbs. This is why quitting all type of tobacco or smoking is the only way to treat Buerger's Disease.

What Causes Buerger's Disease?
As discussed earlier, smoking cigarettes or cigars and chewing any form of tobacco is one of the main causes of Buerger's Disease. Still, the exact cause of this disease is unknown, but in most cases of Buerger's Disease, the sufferer has consumed tobacco products. It is an assumption that chemicals present in tobacco, cigarettes, and cigars may affect the lining of blood vessels, causing them to swell. According to experts, the genes in the body may also cause this disease. It is suspected that this disease is caused by an autoimmune response in which the immune system of the body attacks healthy tissues mistakenly. According to this theory, some people are prone to this disease.

Symptoms of Buerger's Disease-
Some of the most common symptoms of Buerger's Disease are:
  Pain in the hands and feet while exercising
  Stiffness due to reduced blood flow
  Pain at Rest
  Skin ulcerations
  Gangrene of the fingers and toes in severe cases
  Numbness, coldness, or tingling of the feet and hand
  Pale, reddish, or blue-tinted hands or feet.

Diagnosis of Buerger s Disease-
There is a set of tests that can diagnose Buerger s disease. Doctors first ask a person about his/her lifestyle, use of tobacco, and symptoms. After seeing a few symptoms, doctors may perform a test to check the blood flow. He may also look for other diseases that cause similar symptoms. Some of the common test to diagnose Buerger s Disease are:


  Allen Test: The Allen test is a blood flow test. In this type of test, patients squeeze their hand into a firm fist, which pushes out blood from hand. The doctor presses the arteries to slow down the
blood flow of the hand. At this stage, the normal color of the skin gets pale. After that, patients open his/her hand and doctors release the pressure from both sides of the wrist one by one. If it takes a longer time to go back to the normal skin color, it may be an indication of Buerger s disease

  Angiogram: It is a type of X-ray that will help to check the blockage of the blood vessels in the legs and arms. In this test, doctor place catheter (thin tube) into an artery to pump the dye. After
that, he takes X-ray images. Doctors may also perform tomography (CT) or MRI scan for clear results.

  Blood Tests: The blood tests will help the doctor to check if there is any other disease that causes the same symptoms as most of the vascular diseases mimics the symptoms of Buerger s
Disease. The doctor may also perform tests to check for diseases like lupus, diabetes, and those that cause blood clots.

Treatment of Buerger' Disease-
Quitting smoking and use of tobacco will help a person to lower the symptoms of this disease. Doctors may also prescribe for pain killers or antibiotics to get rid of the pain in affected areas. If a person finds it difficult to quit smoking, doctors help him/her with the right program and rehabilitation techniques.

Take Away-
Buerger's Disease is one of the rare illness caused by intake of tobacco products, this is why quitting smoking is most important to treat this disease. It is also advisable to consult a doctor as soon as a person identify any of the above symptoms.

All You Need To Know About Peripheral Vascular Injuries!

The heart pumps pure blood to all parts of the body through a network of arteries. These are thicker in the beginning and become finer and thinner as they reach the various organs. These arteries are lined by a layer of epithelial tissues and as blood flows through them, the heavier cholesterol / fat molecules settle down along the walls. 


This attracts more and more fat molecules to settle down.  This is known as atherosclerosis (hardening of the arteries). Over a period of time, the vessels circumference reduces and the blood supply to the target organ reduces. This impacts proper functioning of these organs and when this happens to the major organs like the heart, kidney or the brain, conditions like stroke or thrombosis or heart attack can occur.


This condition, known as coronary artery disease, is becoming a major cause of deaths.  While that is the bad news, the good news is that it is largely lifestyle dependent, and if steps are taken, it can be prevented, and in the early stages, the damage completely reversed.


Preventive measures: 
1. Diet: A low-fat, high-fiber, heart-healthy diet consisting of Omega-3 fatty acids is recommended by doctors, especially to people who are prone to develop heart disease.  This also requires reduced salt, increased unsaturated fats, reduced triglycerides and reduced sugar.  Include loads of fresh fruits and vegetables, whole grains, nuts and seeds and fish oils. Include multivitamins or other supplements after checking with your doctor.


2. Exercise:  Regular exercise in any form increases the efficiency of the circulatory system, keeps the cholesterol levels in check and helps in blood pressure management.  Exercise in any form is advisable, based on individual preference. A moderate physical activity of 30 to 45 minutes per day is advisable.


3. Smoking: This is one of the major risk factors for smoking, and quitting or controlling smoking is one of the best methods to prevent coronary artery disease.


4. Alcohol consumption:  While moderate alcohol consumption is believed to be healthy for the heart, excessive alcohol consumption is a strict no-no.  Binge drinking especially is shown to cause heart attacks.


5. Weight management: Check with your doctor on what is ideal BMI for you and work out a plan to keep your weight under check.


6. Regular medications: If you are on blood pressure or diabetes medications, ensure you do not miss them.  Keep a constant check to ensure your readings are managed well. 


7. Watch out:  Ask your doctor if there are specific symptoms that you need to watch out and seek medical support if you see any of them.


Coronary disease is not treatable fully, but can be prevented and managed effectively to improve the overall quality of life.

Coronary Artery Disease - 7 Ways You Can Prevent it 

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!

Varicose veins are enlarged and gnarly veins and they commonly appear in the feet and legs. They occur when veins get filled with blood and they are often red or bluish purple in color.

The main cause of varicose veins is the when the vein dysfunctions. Veins have valves in them that are supposed to keep the blood flowing forward, but if they fail to do so, blood in the vein starts to collect rather than continue towards the heart. Since the legs are furthest from the heart, varicose veins mostly affect the legs. Gravity, too, is a contributing factor as it makes it hard for the blood to flow up the vein.
Out of all the treatments available for varicose veins, sclerotherapy is the most effective.

What is sclerotherapy?
Sclerotherapy is a form of injection therapy that is designed to improve the way the varicose veins appear on your legs.

The Procedure
During the procedure, a solution called sclerosant is injected in the veins that scars and destroys the vein's internal lining which causes the blood to clot. After the solution is injected, pressure over the veins is applied to prevent the return of the blood as you stand up. Compression stockings are worn for maintaining the pressure.

After the Procedure
There is no prolonged recovery time for sclerotherapy. You can move around immediately after the procedure, but do not strain yourself too much. However, bed rest is not recommended as it might stress the vein. You probably have to keep wearing the compression stockings for a few days more.

Reasons for Choosing Sclerotherapy
Sclerotherapy is best for treating the following problems-
1. Small veins and spider veins that do not cause severe damages
2. Smaller varicose veins that might return even after vein stripping surgery (the surgical removal of the superficial saphenous vein with minimal incisions to treat varicose veins).
3. Larger varicose veins
4. Follow up to any other surgery to treat varicose veins

Risks involved
Sclerotherapy, like any other treatment, has certain risks. The risks include-
1. Skin discoloration
2. The varicose veins can still return after the treatment
3. Bruising, itching, blistering and pain in the treated area
4. Mild or severe allergic reaction to the solution (sclerosant) used
5. Blood clots in the deep vein system.

Varicose Veins: Using Sclerotherapy to Get Rid of It

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