Angiogram Of The Head And Neck: Risks

Content provided by Healthwise

Risks

The chance of any major problem from an angiogram is very small, but some problems can occur. In most cases, the problems occur within 2 hours after the test when you are in the recovery room. If the problem occurs during the angiogram, the test may not be completed. You may need urgent treatment that could include surgery.

• There is a chance for an allergic reaction to the iodine dye. The reaction can be mild (itching, rash) or severe (difficulty breathing or sudden shock). Most reactions can be treated with medicines. Be sure to tell your doctor if you have hay fever, asthma, or iodine allergy or food allergies.
• There is a small chance that the catheter may damage a blood vessel or dislodge a piece of clotted blood or fat from the vessel wall. The clot or fat can block blood flow to the brain, arm, leg, or intestine (bowel).
• Bleeding from the needle site may occur. Also, a blood clot can form where the catheter was inserted. This may cause some blockage of the blood flow to the arm or leg.
• The iodine dye used for the test can cause water loss or direct damage to the kidneys. This is a special concern for people who have kidney problems, diabetes, or who are dehydrated. Special measures are used during the test to prevent problems for people who need an angiogram and have these conditions.
• There is always a small chance of damage to cells or tissue from being exposed to any radiation, even the low level used for this test.

After the test

After the test, call 911 or other emergency services immediately if you have:

• Chest pain.
• Moderate to severe difficulty breathing.
• Vision problems or slurred speech.
• Weakness in the muscles of your face or in your arms or legs.
• Severe pain in your belly or back.

After the test, call your doctor immediately if you:

• Have shortness of breath.
• Have dizziness.
• Have numbness, tingling, pain, loss of color, coolness, or loss of function in the arm or leg where the catheter was inserted.
• Develop a fever.
• Develop signs of infection at the catheter site. These signs may include:
  • Increased pain, swelling, redness, or warmth around the area.
  • Red streaks spreading from the area.
  • Drainage of pus from the area.
  • Swollen lymph nodes in the neck, armpit, or groin.
  • Fever or chills.

Last updated:	January 19, 2007
Author:	Jan Nissl, RN, BS
Reviewed By:	Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology, Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology
Editors:	Susan Van Houten, RN, BSN, MBA, Tracy Landauer