ArticleThe American journal of case reports2017
Normalization of Diffuse ST-Depression with aVR Elevation After Rehydration in a Patient with Severe Aortic Stenosis.
Article in The American journal of case reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 authors at 1 institution in 1 country.
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Abstract
BACKGROUND Isolated ST elevation in lead aVR in combination with global ST depression with normalization after rehydration is a unique electrocardiographic pattern that is associated with a broad range of diagnoses. Its association with left main coronary artery disease and other acute coronary syndromes suggest the need for early and aggressive cardiac evaluation. CASE REPORT A 53-year-old man presented with altered mental status and loss of consciousness. He was unresponsive, hypotensive, tachycardiac, and diaphoretic. An initial ECG showed diffuse ST depression with isolated ST elevation in lead aVR, and initial troponin levels were negative. After rehydration, a repeat ECG showed sinus rhythm without ischemic changes. An emergent echocardiogram showed severe aortic stenosis and global hypokinesis. Repeat troponin results were elevated. The patient had 2 subsequent cardiac arrests. Emergent cardiac catheterization showed an occluded right coronary artery with collaterals and complete occlusion of the LAD. Urgent intra-aortic balloon pump was placed, followed by coronary artery bypass graft, aortic valve replacement, and a placement of a left ventricular assist device. Despite maximal hemodynamic support, the patient died after cardiac arrest due to massive myocardial infarction. CONCLUSIONS Normalization of diffuse ST depression with isolated aVR ST elevation on electrocardiography with improvement in clinical and hemodynamic status through fluid resuscitation can mask a stuttering myocardial infarction given its association with left main coronary artery disease and partial right coronary artery occlusion.
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