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</div><div><span>Pulmonic valve stenosis</span></div></div>
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<article><div id="d-article"><div class="page-info"><div class="page-title"><a name="start" id="start">
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</a><h1 class="with-also" itemprop="name">Pulmonic valve stenosis</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>Pulmonic stenosis is a heart valve disorder that involves the pulmonary valve.</p><p>This is the valve separating the right ventricle (one of the chambers in the heart) and the pulmonary artery. The pulmonary artery carries oxygen-poor blood to the lungs.</p><p>Stenosis, or narrowing, occurs when the valve cannot open wide enough. As a result, blood flows less easily to the lungs.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Causes</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>Narrowing of the pulmonary valve is most often present at birth (congenital). It is caused by a problem that occurs as the baby develops in the womb before birth. The cause is unknown, but genes may play a role.</p><p>Narrowing that occurs in the valve itself is called valvular pulmonic stenosis. There may also be narrowing just before or after the valve. </p><p>The defect may occur alone or with other heart defects that are present at birth. The condition can be mild or severe.</p><p>Pulmonic stenosis is a rare disorder. In some cases, the problem runs in families.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Symptoms</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>Many cases of pulmonic stenosis are mild and do not cause symptoms. The problem is most often found in infants when a heart murmur is heard during a routine heart exam. </p><p>When the valve narrowing (stenosis) is moderate to severe, the symptoms include:</p><ul><li><a test="test" href="./003122.htm">Abdominal distention</a></li><li><a test="test" href="./003215.htm">Bluish color to the skin</a> (cyanosis) in some people</li><li>Poor appetite</li><li><a test="test" href="./003079.htm">Chest pain</a></li><li><a test="test" href="./003092.htm">Fainting</a></li><li><a test="test" href="./003088.htm">Fatigue</a></li><li>Poor weight gain or <a test="test" href="./000991.htm">failure to thrive</a> in infants with a severe blockage</li><li><a test="test" href="./003075.htm">Shortness of breath</a></li><li>Sudden death </li></ul><p>Symptoms may get worse with exercise or activity.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Exams and Tests</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 health care provider may hear a <a test="test" href="./003266.htm">heart murmur</a> when listening to the heart using a stethoscope. Murmurs are blowing, whooshing, or rasping sounds heard during a heartbeat.</p><p>Tests used to diagnose pulmonary stenosis may include:</p><ul><li><a test="test" href="./003419.htm">Cardiac catheterization</a></li><li>Chest x-ray</li><li><a test="test" href="./003868.htm">Electrocardiogram</a> (ECG)</li><li><a test="test" href="./003869.htm">Echocardiogram</a></li><li><a test="test" href="./003795.htm">MRI of the heart</a></li></ul><p>The provider will grade the severity of the valve stenosis to plan treatment. </p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Treatment</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>Sometimes, treatment may not be needed if the disorder is mild.</p><p>When there are also other heart defects, medicines may be used to:</p><ul><li>Help blood flow through the heart (prostaglandins)</li><li>Help the heart beat stronger</li><li>Prevent clots (blood thinners)</li><li>Remove excess fluid (water pills)</li><li>Treat abnormal heartbeats and rhythms </li></ul><p>Percutaneous balloon pulmonary dilation (valvuloplasty) may be performed when no other heart defects are present. </p><ul><li>This procedure is done through an artery in the groin.</li><li>The doctor sends a flexible tube (catheter) with a balloon attached to the end up to the heart. Special x-rays are used to help guide the catheter.</li><li>The balloon stretches the opening of the valve. </li></ul><p>Some people may need heart surgery to repair or replace the pulmonary valve. The new valve can be made from different materials. If the valve cannot be repaired or replaced, other procedures may be needed.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Outlook (Prognosis)</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>People with mild disease rarely get worse. However, those with moderate to severe disease will get worse. The outcome is often very good when surgery or balloon dilation is successful. Other congenital heart defects may be a factor in the outlook.</p><p>Most often, the new valves can last for decades. However, some will wear out and need to be replaced.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Possible Complications</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>Complications may include:</p><ul><li>Abnormal heartbeats (<a test="test" href="./001101.htm">arrhythmias</a>)</li><li>Death</li><li><a test="test" href="./000158.htm">Heart failure</a> and enlargement of the right side of the heart
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</li><li>Leaking of blood back into the right ventricle (pulmonary valve regurgitation) after repair</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>When to Contact a Medical Professional</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>Contact your provider if:</p><ul><li>You have symptoms of pulmonary valve stenosis.</li><li>You have been treated or have untreated pulmonary valve stenosis and have developed swelling (of the ankles, legs, or abdomen), difficulty breathing, or other new symptoms. </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>Valvular pulmonary stenosis; Heart valve pulmonary stenosis; Pulmonary stenosis; Stenosis - pulmonary valve; Balloon valvuloplasty - pulmonary</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Patient Instructions</h2></div><div class="section-button"><button type="submit" aria-controls="section-carepnt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div name="Patient Instructions" class="section-body" id="section-carepnt"><ul class="side-nav"><li><a href="../patientinstructions/000291.htm">Heart valve surgery - discharge </a></li>
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</ul></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/9380t.jpg" alt="Heart valves" title="Heart valves" class="side-img"/><a href="../imagepages/9380.htm">Heart valves</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>Carabello BA, Kodali S. Valvular heart disease. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 60.</p><p>Pellikka PA, Nkomo VT. Tricuspid, pulmonic, and multivalvular 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 77.</p><p>Sharkey A, Choudhury N, Mahmood F. Valvular heart disease. In: Hines RL, Jones SB, eds. <em>Stoelting's Anesthesia and Co-Existing Disease</em>. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 6.</p><p>Therrien J, Marelli AJ. Congenital heart disease in adults. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 61.</p><p>Valente AM, Dorfman AL, Babu-Narayan SV, Krieger EV. Congenital heart disease in the adolescent and adult. 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 82.</p></div></div></section>
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