Title: Dextrocardia<br/>Author: Semhar Tewelde<br/><a href='http://umem.org/profiles/faculty/352/'>[Click to email author]</a><hr/><p>
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Mirror-image dextrocardia is the most common form of cardiac malposition and is commonly associated with situs inversus of the abdominal organs</li>
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The anatomic right ventricle is anterior to the left ventricle and the aortic arch curves to the right and posteriorly</li>
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25% percent of these patients will have associated sinusitis and bronchiactasis (Kartagener’s syndrome)</li>
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ECG changes associated with dextrocardia include:</li>
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Right-axis deviation</li>
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Global negativity in leads I and aVL (negative QRS w/inverted P and T waves)</li>
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Lead aVR similar to the normal aVL (positive QRS)</li>
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Absent R wave progression in precordial leads/dominant S waves</li>
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<fieldset><legend>References</legend>
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Al-Khadra A. Mirror-Image Dextrocardia With Situs Inversus. Circulation. 1995; 91: 1602-1603</div>
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