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Left heart catheterization

Catheterization - left heart

Left heart catheterization is the passage of a thin flexible tube (catheter) into the left side of the heart. It is done to diagnose or treat certain heart problems.

How the Test is Performed

You may be given a mild medicine (sedative) before the procedure starts. The medicine is to help you relax. The health care provider will place an IV into your arm to give medicines. You will lie on a padded table. Your doctor may make a small surgical cut on your body. A flexible tube (catheter) is inserted through the cut into an artery. It will be placed in your wrist, arm or your upper leg (groin). You will most likely be awake during the procedure.

Live x-ray pictures are used to help guide the catheters up into your heart and arteries. Dye (sometimes called "contrast") will be injected into your body. This dye will highlight blood flow through the arteries. This helps show blockages in the blood vessels that lead to your heart.

The catheter is then moved through the aortic valve into the left side of your heart. The pressure is measured in the heart in this position. Other procedures, can also be done at this time, such as:

  • Ventriculography to check the heart’s pumping function
  • Coronary angiography to look at the coronary arteries
  • Angioplasty with or without stenting: to correct blockages in the arteries are then performed.

The procedure may last from less than 1 hour to several hours.

How to Prepare for the Test

In most cases, you should not eat or drink for 8 hours before the test. (Your provider may give you different directions.)

The procedure will take place in the hospital. You may be admitted the night before the test, but it is common to come to the hospital the morning of the procedure. In some cases, this procedure is done after you have already been admitted to the hospital possibly on an emergency basis.

Your provider will explain the procedure and its risks. You must sign a consent form.

How the Test will Feel

The sedative will help you relax before the procedure. However, you will be awake and able to follow instructions during the test.

You will be given local numbing medicine (anesthesia) before the catheter is inserted. You will feel some pressure as the catheter is inserted. However, you should not feel any pain. You may have some discomfort from lying still for a long period of time.

Why the Test is Performed

The procedure is done to look for:

  • Cardiac valve disease
  • Cardiac tumors
  • Heart defects (such as ventricular septal defects)
  • Problems with heart function

The procedure may also be done to evaluate and possibly repair certain types of heart defects, or to open a narrowed heart valve.

When this procedure is done with coronary angiography to examine the arteries that feed the heart muscle, it can open blocked arteries or bypass grafts. This can be because of a heart attack or angina

The procedure can also be used to:

  • Collect blood samples from the heart
  • Determine pressure and blood flow in the heart's chambers
  • Take x-ray pictures of the left ventricle (main pumping chamber) of the heart (ventriculography)

Normal Results

A normal result means the heart is normal in:

  • Size
  • Motion
  • Thickness
  • Pressure

The normal result also means arteries are normal.

What Abnormal Results Mean

Abnormal results may be a sign of cardiac disease or heart defects, including:

Risks

Complications may include:

  • Cardiac arrhythmias
  • Cardiac tamponade
  • Embolism from blood clots at the tip of the catheter to the brain or other organs
  • Heart attack
  • Injury to the artery
  • Infection
  • Kidney damage from contrast (dye) 
  • Low blood pressure
  • Reaction to the contrast material
  • Stroke

References

American Heart Association website. Cardiac catheterization. www.heart.org/HEARTORG/Conditions/HeartAttack/SymptomsDiagnosisofHeartAttack/Cardiac-Catheterization_UCM_451486_Article.jsp#.W1-CT9JKiHu. Updated March 21, 2018. Accessed July 30, 2018.

Goff DC Jr, Lloyd-Jones DM, Bennett G, et al; American College of Cardiology/American Heart Association Task Force on Practice Guidelines. 2013 ACC/AHA guideline on the assessment of cardiovascular risk: a report of the American College of Cardiology/American Heart Association Task Force on practice guidelines. Circulation. 2014;129(Suppl 2):S49-S73. PMID: 24222018 www.ncbi.nlm.nih.gov/pubmed/24222018.

Herrmann J. Cardiac catheterization. In: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier; 2019:chap 19.

Kern M. Catheterization and angiography. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 57.

Mehran R and Dengas GD. Coronary angiography and intravascular imaging. In: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier; 2019:chap 20.

Mehran R, Dangas GD. Coronary angiography and intravascular imaging. In: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier Saunders; 2019:chap 20.

    • Cardiac catheterization - indications

      Cardiac catheterization - indications

      Animation

    •  

      Cardiac catheterization - indications - Animation

      An overview of the uses of cardiac catheterization.

    • Cardiac catheterization - uses in diagnosis, evaluation and treatment

      Cardiac catheterization - uses in diagnosis, evaluation and treatment

      Animation

    •  

      Cardiac catheterization - uses in diagnosis, evaluation and treatment - Animation

      How cardiac catheterization and coronary angiography are used to tell your doctor about the condition of your heart or treat some heart problems.

    • Left heart catheterization

      Left heart catheterization - illustration

      Left heart catheterization involves the passage of a catheter (a thin flexible tube) into the left side of the heart to obtain diagnostic information about the left side of the heart or to provide therapeutic interventions in certain types of heart conditions. The test can determine pressure and blood flow in the heart's chambers, collect blood samples from the heart, and examine the arteries of the heart by X-ray (fluoroscopy).

      Left heart catheterization

      illustration

    • Cardiac catheterization - indications

      Animation

    •  

      Cardiac catheterization - indications - Animation

      An overview of the uses of cardiac catheterization.

    • Cardiac catheterization - uses in diagnosis, evaluation and treatment

      Animation

    •  

      Cardiac catheterization - uses in diagnosis, evaluation and treatment - Animation

      How cardiac catheterization and coronary angiography are used to tell your doctor about the condition of your heart or treat some heart problems.

    • Left heart catheterization

      Left heart catheterization - illustration

      Left heart catheterization involves the passage of a catheter (a thin flexible tube) into the left side of the heart to obtain diagnostic information about the left side of the heart or to provide therapeutic interventions in certain types of heart conditions. The test can determine pressure and blood flow in the heart's chambers, collect blood samples from the heart, and examine the arteries of the heart by X-ray (fluoroscopy).

      Left heart catheterization

      illustration

    A Closer Look

     

    Tests for Left heart catheterization

     

    Review Date: 7/25/2018

    Reviewed By: Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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