Arteriovenous Malformation, Craniotomy

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 they can stand the stress of therapy.
• 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.
• Isolation: Because bright lights and noise can make you feel worse, you may be given a room by yourself where the lights can be dimmed and the door kept closed.
• Neuro Signs: Nurses will regularly check your eyes, memory, hand grasp, and balance, and see how easily you can be awakened. These indicators show how well the brain is functioning.
• Blood Transfusion: If you have anemia (a shortage of red blood cells) or lose a lot of blood during surgery, you may need a transfusion. Although you might be worried about catching AIDS or hepatitis from tainted blood, the risks posed by going without a transfusion are actually much greater. Your chance of receiving infected blood is about 1 in a million; severe blood loss, on the other hand, can easily trigger a heart attack.
• Seizure Precautions: As the swollen AVM presses on the brain, it can trigger seizures. Your bed will probably have padded side rails to prevent injury, and the head of the bed will probably be raised to reduce the pressure in your head and lessen the chance of a seizure.
• Special Tubes: For this type of operation, a variety of special-purpose tubes may be inserted in your blood vessels.
• CVP Line: A CVP line, also called a central line, is an IV tube inserted in a large blood vessel near your collarbone, in your neck, or in your groin. To make insertion easier, the head of your bed may be lowered to help the blood vessel fill up and expand. The skin at the insertion site will be numbed to reduce any pain. Once in place, the line can be used to give medicines and measure the activity of your heart.
• Swan-Ganz: This thin tube is passed into a vein near the collarbone or neck, then maneuvered through the heart and into the lungs. One of the tube's outlets is hooked to a heart monitor. Another can be used to give medicine. To check the heart's pumping capacity, an IV liquid can be rapidly pushed through the Swan-Ganz line and into your circulation. The line then measures the time it takes for the liquid to move through the heart.
• Arterial Line: This tube, also called an "art line" or an "A-line," is inserted in an artery, usually in the wrist or groin. Nurses will keep the line filled with liquid to keep it from getting plugged. It can be used for measuring blood pressure or for drawing blood.
• General Anesthesia: This type of pain-killing medication puts you completely to sleep during the operation. It 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.

After Surgery:

• Ventilator: This is a special machine that can do your breathing for you. It can be hooked up to an endotracheal tube in your mouth or nose, or a tube called a trach (trayk) that's passed into your airway through an incision in the front of your neck.
• Oxygen: Once you're off the ventilator, you may still need oxygen. It is given either through a plastic mask over your mouth and nose or through nasal prongs. Tell your doctor if the oxygen is drying out your nose or the nasal prongs bother you. Don't take off your oxygen without asking your doctor or nurse. If you do, your body could become oxygen-depleted.
• Wrist Restraints: To keep you from accidentally pulling out an endotracheal tube, strips of cloth or leather will hold your wrists to the sides of your bed. The restraints will be taken off as soon as the tube is removed.
• Day or Night Confusion: Patients recovering in the ICU often can't tell whether it's day or night, since the lights are on 24 hours a day. This problem will disappear once you are moved to a room on a regular floor.
• Blood Gases: This test measures the amount of oxygen, acids, and carbon dioxide in the blood---measurements that are especially important if you're having any trouble breathing. The blood sample for the test is taken from an artery in the wrist, elbow, or groin.
• 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.
• Drains: Thin rubber tubes may be put into the area around your incision to drain off excess fluid. They will be taken out when no longer needed.
• Pressure Stockings: These tight elastic stockings keep blood from collecting in the legs and causing clots.
• Pneumatic Boots: For extra insurance against blood clots, these plastic boots or leggings are applied over pressure stockings or ace wraps and connected to an air pump machine. The pump rhythmically tightens and loosens different parts of the boots, helping to push the blood back up to the heart.
• Activity: Even while you are confined to bed, it's important to exercise your legs in order to stop blood clots from forming. Lift one leg off the bed and draw big circles with your toes, then repeat with the other leg. You can also try lying on your side and pretending to pedal a bike. When you're told it's OK to get out of bed, make sure someone is with you the first time you try. If you feel weak or dizzy, sit or lie down right away.
• Nasogastric Tube: This type of tube, also called an NG tube, is threaded through your nose and throat and down into your stomach. It is attached to suction, which will keep your stomach empty. It may also help to get your bowels working. Food or medicine is sometimes given through the tube.
• Eating: When your doctor can hear bowel sounds (stomach growling) through a stethoscope, you'll be able to eat. You will probably get ice chips first and then liquids (water, broth, apple juice, or soda). If you do not have problems with the liquids, you'll then be allowed to eat soft foods such as ice cream, applesauce, or custard. If these foods agree with you, you can return to a regular diet.
• Bowel Movements: Regular bowel movements can be difficult after surgery. Don't strain if the stool is too hard. Walking will help to stimulate the bowels. Eating foods rich in fiber, such as fruit, bran, cereal, and beans, will also help restore regularity. Drink plenty of liquids; prune juice may help make the stool softer. Or, if your doctor approves, you can take an over-the-counter fiber laxative.
• Foley Catheter: This is a tube that is sometimes inserted into the bladder to drain your urine. The catheter may make you feel as though you have to urinate. Relax and the catheter will drain the urine for you.
• Don't pull on the catheter because this could cause injury.
• Don't kink the catheter; this will stop the flow.
• Don't lift the bag of urine above the catheter. If you do, the urine will flow back into your bladder, possibly causing an infection.
• The catheter will be taken out when you can urinate on your own.
• 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.
• Medicines:
• Antibiotics: These medicines help prevent bacterial infection. They may be given by IV, as a shot, or by mouth.
• Anticonvulsants: Because the danger of seizures will be higher just after the operation, the doctor may prescribe medications to prevent them.
• 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.
• Stool Softeners: These medications make bowel movements softer so you won't need to strain.

After You Leave

• 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.
• When you are allowed to bathe or shower, carefully wash the incision with soap and water. Then put on a clean, new bandage. Change the bandage any time it gets wet or dirty.
• Eat healthy meals from all 5 food groups: fruits, vegetables, breads, dairy products, and meat. This will increase your energy level and promote faster healing.
• Unless instructed otherwise, drink 6 to 8 large glasses of liquid, such as water, juices, and milk, each day. Limit caffeinated beverages, such as coffee, tea, and soda.
• Get plenty of rest and limit your activities. Exercise can increase the pressure inside your head and cause seizures and bleeding.
• Do not lift anything heavy until your doctor says it is OK.

Call Your Doctor If...

• 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 are running a high temperature.

Seek Care Immediately If...

• You have chest pain or sudden trouble breathing. These could be signs of a blood clot in your lung or an allergy to one of your medicines.
• You notice any of the symptoms you had before your surgery, including:
• • Dizziness
  • Muscle weakness
  • Tingling skin
  • Throbbing headache
  • Stiff neck
  • Difficulty talking or understanding
  • Visual problems and sensitivity to light
  • Nausea and vomiting
  • Seizures