It is an abnormal blood vessel connection that causes an artery and a vein to connect directly, bypassing the normal capillary bed. Arteriovenous fistula It is often created intentionally to increase blood flow in dialysis patients. However, it may be congenital or develop as a result of trauma. This allows blood to flow directly from high-pressure arteries to lower-pressure veins. This can affect blood circulation in the affected area.
In Which Situations Is Arteriovenous Fistula Applied?
For patients with chronic kidney disease and on dialysis arteriovenous fistula is used. It provides a reliable way to transport blood to the dialysis machine and back. It increases effectiveness by providing better blood flow during dialysis. It can be used when strong medications need to be given for treatments such as chemotherapy. This allows medications to be distributed more quickly and effectively. It is used in some special radiological examinations when large amounts of contrast material are required.
This allows the contrast medium to spread quickly and effectively throughout the body. It is considered an alternative solution when other vascular access routes fail or are not suitable. It is a method suitable for every patient. It is evaluated by doctors depending on factors such as the person's health status, treatment needs and vascular structure. Arteriovenous fistula It is necessary to be careful when deciding whether to apply it or not.
How is Arteriovenous Fistula Done?
Arteriovenous fistula Before it is created, the patient is evaluated in detail. Factors such as the patient's vascular structure, blood flow rate and general health condition are examined. The most appropriate artery and vein must be selected. Generally, veins in the upper arm are preferred because the veins there can stay healthy for longer. Under local anesthesia, the selected artery and vein are surgically opened. A direct connection (anastomosis) is created between the artery and the vein. Sometimes, if the veins are not suitable enough, a synthetic graft can be used.
Once the fistula is created, it is usually expected to mature over a period of several weeks or months. During this process, the vessels dilate and blood flow increases, providing the higher blood flow rate necessary for dialysis. It requires regular check-up and maintenance to remain healthy and functional. Complications that may occur, such as narrowing or obstruction, are managed with early diagnosis and intervention. Arteriovenous fistula The procedure should be performed under appropriate medical supervision and by an experienced surgeon. This is important for both the general health of the patient and the successful functioning of the fistula.
Things to Consider After Performing Arteriovenous Fistula
Arteriovenous fistula The arm should be protected from activities such as heavy lifting or squeezing. Additionally, it is important not to perform procedures such as blood pressure measurement or bloodletting from this arm. Keeping the fistula area clean and dry reduces the risk of infection. If any cuts, scratches or signs of infection (redness, swelling, pain) are noticed, immediate medical attention should be sought.
Checking regularly is important to understand whether blood flow is appropriate. Regular manual checks may be performed to feel the movement of blood within the vein, called “return”. Fluid intake of hemodialysis patients is often restricted. Arteriovenous fistula In order to function healthily, the amount of fluid intake recommended by the doctor must be followed.
A healthy diet, especially a diet balanced in potassium, phosphorus and sodium, supports the health of the fistula. Eating habits should be regulated in line with the recommendations of the doctor or dietician. Regular exercise is important, especially to strengthen the muscles of the arm where the fistula is located. However, overly strenuous activities should be avoided. Fistula needs to be checked regularly by doctors. This allows possible problems to be diagnosed and treated early. In addition to these precautions, it is important to seek immediate medical attention in case of abnormality or concern. Arteriovenous fistula, It is especially vital for hemodialysis. It is necessary to be careful and conscious about this issue.
