| Right ventricular infarction. | |
MedLine Citation:
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PMID: 2189611 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Right ventricular infarction commonly occurs in association with acute inferior left ventricular infarction, but is uncommon when infarction involves other areas of the left ventricle. Evidence of right ventricular infarction often can be detected by physical examination, electrocardiography, echocardiography, or radionuclide ventriculography. However, hemodynamically significant infarction (i.e., hypotension or shock) is much less frequent, occurring in approximately 10% of patients with other evidence of right ventricular infarction. Right ventricular infarction increases ventricular stiffness, thereby impeding diastolic filling. This results in hemodynamic changes similar to those found in constrictive pericarditis: elevated systemic venous pressure, a Y descent greater than the X descent, and an inspiratory increase in venous pressure. The increase in venous pressure generally equals or even exceeds left atrial pressure. When hypotension or shock occurs, expansion of vascular volume is generally employed as initial therapy. In nonresponders, dobutamine or similar inotropic agents may be helpful. The prognosis during the acute phases is guarded, but, in survivors, prognosis is favorable and generally related to the extent of left ventricular involvement. |
Authors:
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J F Williams |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; Review |
Journal Detail:
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Title: Clinical cardiology Volume: 13 ISSN: 0160-9289 ISO Abbreviation: Clin Cardiol Publication Date: 1990 May |
Date Detail:
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Created Date: 1990-07-11 Completed Date: 1990-07-11 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7903272 Medline TA: Clin Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 309-15 Citation Subset: IM |
Affiliation:
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Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis 46202. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cardiotonic Agents
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therapeutic use Dobutamine / therapeutic use Heart Ventricles / physiopathology Hemodynamics Humans Myocardial Infarction / diagnosis*, drug therapy, physiopathology Prognosis |
| Grant Support | |
ID/Acronym/Agency:
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HL-06308/HL/NHLBI NIH HHS; HL-07182/HL/NHLBI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Cardiotonic Agents; 34368-04-2/Dobutamine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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