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Agree toTerms and ConditionsHemodialysis is a medical procedure that is used to treat patients with kidney failure. This surgery involves removing the patient's blood, filtering it through a machine, and then returning it to their body. The machine used in this process is called a hemodialysis machine. This machine acts as an artificial kidney and performs the functions of a healthy kidney. People who have kidney failure need this surgery to remove extra waste and fluids from their body. Hemodialysis surgery also helps to control blood pressure, balance electrolytes in the body, and remove toxins.
Conventional hemodialysis is the most common type of hemodialysis procedure in which two needles are inserted, one in the patient's arm and the other in their vein. The needles are connected to tubes that are attached to the hemodialysis machine. The machine filters the patient's blood, removes waste and excess fluids, and then returns the clean blood to the patient's body. Conventional hemodialysis is typically performed in a hospital or dialysis center, and the procedure takes around 3 to 5 hours.
Nocturnal hemodialysis is a type of hemodialysis procedure that is performed overnight. This procedure involves the use of a hemodialysis machine that is connected to the patient's body while they sleep. The machine filters the patient's blood, removes waste and excess fluids, and then returns the clean blood to the patient's body. Nocturnal hemodialysis is typically performed at home, and the procedure takes around 6 to 8 hours. This procedure is suitable for patients who prefer to have their treatments at home or those who have difficulty traveling to a dialysis center.
Peritoneal dialysis is a type of hemodialysis procedure that involves filtering the patient's blood through their abdominal cavity. A catheter is inserted into the patient's abdomen. The catheter is then connected to a bag that has a special solution that filters the patient's blood. The solution is drained from the patient's abdomen, and the procedure is repeated several times a day. Peritoneal dialysis can be done at home, and the procedure takes around 4 to 6 hours.
Continuous renal replacement therapy (CRRT) is a kind of hemodialysis procedure that is used to treat critically ill patients. This procedure involves the use of a hemodialysis machine that is connected to the patient's body through a catheter. The machine filters the patient's blood continuously, removing waste and excess fluids. CRRT is typically performed in an intensive care unit, and the procedure can last for several days.
Hemodialysis is required when the kidneys are not functioning properly, and the waste products and excess fluids are not being eliminated from the body.
This can happen because of many reasons, including chronic kidney disease, acute kidney injury, or end-stage renal disease.
Hemodialysis helps in removing the toxins and extra fluids from the blood, and maintains the balance of electrolytes and fluids in the body.
Hemodialysis is also recommended for patients who have high levels of potassium, sodium, or phosphorus in their blood.
Patients with congestive heart failure, pulmonary edema, or fluid overload due to other reasons may also require hemodialysis.
Before the surgery, the patient will need to undergo various tests and evaluations to understand the underlying cause of kidney failure, and to assess the overall health condition.
The patient may also need to undergo a vascular access procedure, which involves creating an access point for the hemodialysis machine to remove and return the blood.
The patient will have to follow a specific diet and fluid intake regimen as prescribed by the doctor or dietician.
The patient may also need to take medications to control blood pressure, calcium, and phosphorus levels in the blood.
The patient will need to wear comfortable and loose-fitting clothes on the day of the surgery, and avoid wearing any jewelry or accessories.
The patient will need to inform the doctor of any allergies, medications, or medical conditions they have before the surgery.
Before undergoing hemodialysis, a patient must first consult with a nephrologist, a specialist who treats kidney diseases. The nephrologist will assess the patient's condition and determine if hemodialysis is necessary.
In order for hemodialysis to take place, a vascular access site must be created. This is usually done a few weeks before the surgery to allow the access site to heal properly. The most common types of access sites are arteriovenous fistula (AVF) and arteriovenous graft (AVG).
Before surgery, the patient will undergo blood tests to determine the levels of some parameters in the blood, such as electrolytes and creatinine. These tests will enable the nephrologist to determine the proper course of treatment.
Patients undergoing hemodialysis must follow a strict diet that is low in salt, potassium, and phosphorus. Before surgery, the nephrologist will provide the patient with information on what foods to avoid and what foods to eat in order to maintain proper nutrition.
Patients undergoing hemodialysis may need to adjust their medication regimen. The nephrologist will review the patient's medications and adjust them as necessary to avoid any potential complications during hemodialysis.
The patient will be prepared for hemodialysis by having their access site cleaned and sterilized. The patient will be given a local anesthetic to numb the region around the access site.
The patient's access site will be connected to the hemodialysis machine, which will begin to pump the patient's blood out of their body and through a filter to remove waste products and excess fluid.
During hemodialysis, the patient's blood pressure, temperature, and heart rate will be monitored closely. The patient's weight will also be monitored to ensure that excess fluid is removed from the body.
Hemodialysis typically lasts for several hours, depending on the patient's condition and the amount of fluid and waste products that need to be removed from the body.
Hemodialysis can sometimes cause complications, such as low blood pressure, muscle cramps, and nausea. If these complications occur, the patient's treatment may need to be adjusted.
After hemodialysis, the patient will be monitored for any complications or adverse reactions. The patient may also need to follow specific dietary and medication guidelines to maintain their health.
AVF is the most preferred method of hemodialysis access. It involves creating a connection between an artery and a vein in the forearm or the upper arm. The connection lets blood flow from the artery to the vein; this increases the blood flow rate and makes the vein stronger. Once the AVF is matured, it can be used for hemodialysis.
AVG is an alternative to AVF. It involves using a synthetic tube that is placed under the skin to connect an artery and vein. AVG is used when AVF cannot be created due to small veins or other medical conditions.
Catheter access involves placing a tube in a large vein in the neck, the chest, or the groin. It is used as a temporary access when AVF or AVG cannot be created or when there is an urgent need for hemodialysis. Catheter access is associated with a higher risk of infection and other complications, and it is not recommended for long-term use.
After the hemodialysis procedure, the patient may experience some adverse effects like nausea, vomiting, headache, or muscle cramps. These side effects are usually temporary and can be managed with medication or adjusting the dialysis prescription. The patient should also follow a strict diet and fluid restriction as recommended by the healthcare provider to avoid complications such as fluid overload, electrolyte imbalance, or high blood pressure.
Hemodialysis access sites can become infected, especially when catheters are used. Signs of infection are redness, swelling, warmth, and pain around the access site.
Hemodialysis access sites can bleed, especially when the access is first created or when the needle is inserted for dialysis. Patients who are on blood thinners have a chance of bleeding.
Hemodialysis can increase the risk of blood clots, especially when catheters are used. Blood clots are liable to cause serious complications including stroke, heart attack, or pulmonary embolism.
Hemodialysis can cause a sudden drop in blood pressure, especially if too much fluid is removed during the procedure. Low blood pressure is likely to lead to dizziness, fainting, or even heart damage.
Hemodialysis can cause muscle cramps, especially in the legs. Muscle cramps can be managed with medication, adjusting the dialysis prescription, or stretching exercises.