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| {{Infobox_Disease |
| | #REDIRECT [[pulmonary embolism]] |
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| Approximately 40% of patients with PE have evidence of right heart strain on echocardiography.
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| In massive and submassive PE, dysfunction of the right side of the heart can be seen on [[echocardiography]], an indication that the [[pulmonary artery]] is severely obstructed and the heart is unable to match the pressure. Some studies suggest that this finding may be an indication for [[thrombolysis]]. Not every patient with a (suspected) pulmonary embolism requires an echocardiogram, but elevations in [[troponin|cardiac troponins]] or [[brain natriuretic peptide]] may indicate heart strain and warrant an echocardiogram.<ref>{{cite journal |author=Kucher N, Goldhaber SZ |title=Cardiac biomarkers for risk stratification of patients with acute pulmonary embolism |journal=Circulation |volume=108 |issue=18 |pages=2191-4 |year=2003 |pmid=14597581 |doi=10.1161/01.CIR.0000100687.99687.CE}}</ref>
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| The specific appearance of the right ventricle on echocardiography is referred to as the McConnell's sign. This is the finding of akinesia of the mid-free wall but normal motion of the apex. This phenomenon has a 77% sensitivity and a 94% specificity for the diagnosis of acute pulmonary embolism.<ref>{{cite journal |author=McConnell MV, Solomon SD, Rayan ME, Come PC, Goldhaber SZ, Lee RT |title=Regional right ventricular dysfunction detected by echocardiography in acute pulmonary embolism |journal=Am. J. Cardiol. |volume=78 |issue=4 |pages=469-73 |year=1996 |pmid=8752195 |doi=}}</ref> Some authors suggest that the findings of right ventricular hypokinesis on echo, in association with a positive LENI is virtually pathognomonic for PE.
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| ==References==
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| {{Reflist|2}}
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| {{Circulatory system pathology}}
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| {{Symptoms and signs}}
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| {{SIB}}
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| [[Category:Cardiology]]
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