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</div><div><span>Left heart catheterization</span></div></div>
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</a><h1 class="with-also" itemprop="name">Left heart catheterization</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>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.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>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 will make a small puncture on your body near one of your arteries. A flexible tube (catheter) is inserted into and through the artery. It will be placed in your wrist, arm or your upper leg (groin). You will most likely be awake during the procedure.</p><p>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.</p><p>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:</p><ul><li><a test="test" href="./003875.htm">Ventriculography</a> to check the heart's pumping function.</li><li><a test="test" href="./003876.htm">Coronary angiography</a> to look at the coronary arteries.</li><li><a test="test" href="./007473.htm">Angioplasty</a>, with or without stenting, to correct blockages in the arteries is then performed. </li></ul><p>The procedure may last from less than 1 hour to several hours.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How to Prepare for the Test</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>In most cases, you should not eat or drink for 8 hours before the test. (Your provider may give you different directions.)</p><p>The procedure will take place in the hospital. You may be admitted the night before the test, but it is more 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.</p><p>Your provider will explain the procedure and its risks. You must sign a consent form.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test will Feel</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>The sedative will help you relax before the procedure. However, you will be awake and able to follow instructions during the test.</p><p>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.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Why the Test is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>The procedure is done to look for:</p><ul><li>Cardiac valve disease</li><li>Cardiac tumors</li><li>Heart defects (such as <a test="test" href="./001099.htm">ventricular septal defects</a>)</li><li>Problems with heart function </li></ul><p>The procedure may also be done to evaluate and possibly repair certain types of heart defects, or to open a narrowed heart valve.</p><p>When this procedure is done with <a test="test" href="./003876.htm">coronary angiography</a> 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 <a test="test" href="./001107.htm">angina</a>.</p><p>The procedure can also be used to:</p><ul><li>Collect blood samples from the heart</li><li>Determine pressure and blood flow in the heart's chambers</li><li>Take x-ray pictures of the left ventricle (main pumping chamber) of the heart (ventriculography) </li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Normal Results</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>A normal result means the heart is normal in:</p><ul><li>Size</li><li>Motion</li><li>Thickness</li><li>Pressure</li></ul><p>The normal result also means arteries are normal.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>What Abnormal Results Mean</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Abnormal results may be a sign of cardiac disease or heart defects, including:</p><ul><li><a test="test" href="./000179.htm">Aortic insufficiency</a></li><li><a test="test" href="./000178.htm">Aortic stenosis</a></li><li><a test="test" href="./000198.htm">Coronary artery disease</a></li><li><a test="test" href="./000168.htm">Heart enlargement</a></li><li><a test="test" href="./000176.htm">Mitral regurgitation</a></li><li><a test="test" href="./000175.htm">Mitral stenosis</a></li><li>Ventricular <a test="test" href="./001122.htm">aneurysms</a></li><li><a test="test" href="./000157.htm">Atrial septal defect</a></li><li><a test="test" href="./001099.htm">Ventricular septal defect</a></li><li>Heart failure</li><li><a test="test" href="./001105.htm">Cardiomyopathy</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Risks</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>Complications may include:</p><ul><li>Cardiac <a test="test" href="./001101.htm">arrhythmias</a></li><li><a test="test" href="./000194.htm">Cardiac tamponade</a></li><li><a test="test" href="./001124.htm">Embolism</a> from blood clots at the tip of the catheter to the brain or other organs</li><li><a test="test" href="./000195.htm">Heart attack</a></li><li>Injury to the artery</li><li>Infection</li><li>Kidney damage from contrast (dye) </li><li>Low blood pressure</li><li>Reaction to the contrast material</li><li><a test="test" href="./000726.htm">Stroke</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Catheterization - left heart</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/18143t.jpg" alt="Left heart catheterization" title="Left heart catheterization" class="side-img"/><a href="../imagepages/18143.htm">Left heart catheterization</a></li>
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>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. <em>Circulation</em>. 2014;129(Suppl 2):S49-S73. PMID: 24222018 <a href="https://pubmed.ncbi.nlm.nih.gov/24222018/" target="_blank">pubmed.ncbi.nlm.nih.gov/24222018/</a>.</p><p>Kern MJ, Seto AH, Hermann J. Invasive hemodynamic diagnosis of cardiac disease. In: Libby P, Bonow RO, Mann DL, Tomaselli GF, Bhatt DL, Solomon SD, eds. <em>Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine</em>. 12th ed. Philadelphia, PA: Elsevier; 2022:chap 22.</p><p>Dengas GD, Mehran R. Coronary angiography and intravascular imaging. In: Libby P, Bonow RO, Mann DL, Tomaselli GF, Bhatt DL, Solomon SD, eds. <em>Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine</em>. 12th ed. Philadelphia, PA: Elsevier; 2022:chap 21.</p></div></div></section>
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