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55 rule |
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55 rule Cardiology A clinical guideline used in Pts with aortic regurgitation to gauge the timing of surgery, which should be performed when the ejection fraction falls below 55%, or before the left ventricle can no longer contract to
the end-systolic dimension is > 55 mm or less. See Aortic regurgitation. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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