Title: Treating the sick right ventricle (RV)<br/>Author: Haney Mallemat<br/><a href='http://umem.org/profiles/faculty/785/'>[Click to email author]</a><hr/><p>
The RV is a <strong>low-pressure</strong> chamber that doesn’t tolerate acute increases in pulmonary pressures (e.g., ARDS, pulmonary embolism, etc.); acute increases can lead to RV dysfunction / failure</p>
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Managing RV dysfunction requires a <strong>three-pronged approach</strong>:</p>
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<em style="font-size: 12px;"><strong>Optimize preload</strong></em><span style="font-size: 12px;"> – give small fluid boluses (e.g., 250cc) but not too much, because too much can worsen RV function. Use ultrasound to determine volume status</span></li>
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<em><strong>Optimize RV function</strong></em> – Consider starting inotropes (e.g., dobutamine) for better RV contractility and concurrently start pulmonary vasodilators (e.g., inhaled nitric oxide); also minimize hypoxemia and hypercarbia</li>
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<em><strong>Prevent systemic hypotension</strong></em> – hypotension reduces coronary perfusion that leads to RV ischemia and dysfunction; use norepinephrine to keep blood pressure >65</li>
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<strong>Bottom-line: </strong>Don't under-estimate the importance of the RV when resuscitating your patients </li>
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