Arteriovenous Fistula

WHAT YOU SHOULD KNOW

Risks

IF YOU'RE HEADING FOR THE HOSPITAL...

Before You Go

• The Week Before Surgery:
• You'll probably need to stop taking aspirin and ibuprofen; the doctor will tell you when. If you're taking aspirin for your heart, don't stop without asking the doctor first. Also ask whether you can take any over-the-counter medicines.
• Your doctor will tell you whether you need to have blood drawn.
• The Night Before Surgery:
• Your physician may suggest you take a sleeping pill.
• Just before surgery, you should not eat or drink anything (even water). Your doctor will tell you when to begin fasting.

When You Arrive

• Check with your doctor before taking insulin, diabetes pills, blood pressure medicine, heart pills, or any other medication on the day of surgery.
• Do not wear contact lenses to the hospital. You may wear glasses.

What to Expect While You're There

• Taking Vital Signs: These include your temperature, blood pressure, pulse (counting your heartbeats), and respirations (counting your breaths). A stethoscope is used to listen to your heart and lungs. Your blood pressure is taken by wrapping a cuff around your arm.
• Blood Tests: You may need blood taken for tests. It can be drawn from a vein in your hand or from the bend in your elbow. Several samples may be needed.
• Chest X-ray: The doctor will check this picture of your lungs and heart to make sure you're ready for surgery.
• Heart Monitor: (Also called an electrocardiogram [e-LEK-tro-KAR-di-o-gram] or EKG). Typically, three to five sticky pads are placed on different parts of your body. Each pad has a wire that is hooked to a TV-type screen or to a small portable box (telemetry unit) that shows a tracing of each heartbeat.
• IV: A tube placed in your vein for giving medicine or liquids. It will be capped or have tubing connected to it.
• Pulse Oximeter: With a little clip connected to your ear, finger, or toe, this machine measures the oxygen in your blood.
• Anesthesia: You'll need a pain-killer during the operation. For this type of surgery, the following options are available:
• General Anesthesia: This alternative puts you completely to sleep throughout the operation. The anesthetic is given either as a liquid in your IV or as a gas through a face mask or endotracheal (END-o-TRA-kee-ull) tube placed in your mouth and throat.
• Local Anesthesia: This is simply a pain-killing injection at the site of the operation. You'll remain awake, and may feel some painless pressure or pushing.

After Surgery:

• Oxygen: At times during your stay, your body may need extra oxygen. It is given either through a plastic mask over your mouth and nose or through nasal prongs. If the oxygen dries out your nose or the nasal prongs bother you, tell your nurse, but don't take off the oxygen on your own.
• Deep Breathing and Coughing: These exercises help prevent a lung infection after surgery. Deep breathing opens the tubes going to your lungs. Coughing helps to bring up sputum from your lungs and keep them clear. You should deep breathe and cough every hour while you are awake, including any time you spend awake during the night.
• Take a deep breath and hold it as long as you can. Then push the air out of your lungs with a deep strong cough. Put any sputum that you have coughed up into a tissue. Take 10 deep breaths in a row every hour while awake. Remember to follow each deep breath with a cough.
• Incentive spirometer (spy-ROM-uh-tur): This piece of equipment helps you take deeper breaths. Put the plastic nozzle into your mouth, take a very deep breath, and hold it as long as possible. Then blow as hard as you can into the mouthpiece. Take 10 deep breaths in a row every hour while awake. Remember to follow each deep breath with a cough.
• Strict Intake/Output: Your doctor may need to know the amount of liquid you are taking in versus the amount you lose in your urine. This is often called an "I&O."
• Unless told otherwise, drink 6 to 8 large glasses of water each day. Keep a record of exactly how much liquid you drink.
• Your output of urine may have to be measured. Ask your doctor whether it's OK to use the toilet.
• Bruit: This is the sound or feel of blood flowing through the fistula. Doctors will use a stethoscope or their fingers to check the flow.
• Medicines:
• Antibiotics: These medicines help prevent bacterial infection. They may be given by IV, as a shot, or by mouth.
• Pain Medicine: To ease pain after the operation, your doctor will probably prescribe medication to be given by IV, as a shot, or by mouth. Tell the doctor or your nurses if the pain won't go away or keeps coming back.
• Anti-Nausea Medicine: This medicine calms your stomach and controls vomiting. Your doctor may suggest you take it at the same time as your pain medicine, which sometimes upsets the stomach.

After You Leave

• For pain or swelling, you may put ice in a plastic bag, cover it with a towel, and place it over the incision for 15 to 20 minutes out of every hour as long as necessary. Do not sleep on the ice pack. Treatment with ice is most effective when started right after surgery and used for 24 to 48 hours.
• When you are allowed to bathe or shower, carefully wash the stitches or staples with soap and water. Then put on a clean, new bandage. Change your bandage any time it gets wet or dirty.
• You'll need extra rest while you recuperate. Try to gradually increase your activity each day, resting whenever you feel it's needed. Avoid any heavy lifting until your doctor gives the OK.
• Keep the limb with the fistula in a comfortable position. Don't sleep on it, or keep it bent for long periods.
• If the fistula is in your arm, exercise gently by squeezing a soft, spongy rubber ball in your hand every day.
• Be careful to avoid banging the fistula into anything.
• Do not wear tight clothing over the fistula.
• Always take your medicine exactly as directed. If it doesn't seem to help, let the doctor know, but keep taking it until told otherwise. If you've been prescribed antibiotics, be sure to use them up, even if you're feeling better. If a medicine makes you drowsy, avoid driving or using dangerous machinery.

Call Your Doctor If...

• The fistula sustains a blow.
• The fistula feels cool.
• Your incision is swollen and red, or you see any pus. These are signs of infection.
• Your stitches come apart.
• Your bandage becomes soaked with blood.
• You develop a high temperature.

Seek Care Immediately If...

• You suddenly have trouble breathing or start having chest pain. You could have a blood clot in your lung or an allergy to one of your medicines.
• The fingers or toes below the fistula turn blue, go pale, or feel cool.
• The fistula starts bleeding. Call 911. This is an emergency.