| The impact of right atrial ischemia on inferior myocardial infarction with extension to right ventricle: transesophageal echocardiographic examination. | |
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MedLine Citation:
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PMID: 12000076 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: The role of the right atrium in adaptation to the hemodynamic changes produced by extension of myocardial infarction (MI) of the left ventricular inferior wall to the right ventricle is fundamental. HYPOTHESIS: The aim of this study was analyze a group of patients with MI with extension of right chambers, and particularly right atrial alterations, by transesophageal echocardiography and to correlate it with clinical and angiographic variables. METHODS: Thirty patients with right ventricular (RV) MI involving obstruction of the right coronary artery without stenosis of the left coronary artery were included; 18 underwent early reperfusion. Transesophageal echocardiography was performed on all within 5 days of coronary angiography. Follow-up was continued from hospitalization to the present. RESULTS: When patients with right atrial ischemia were compared with those with normal right atrium, the RV wall movement score was significantly greater in the group with right atrial ischemia, severe RV dilatation was more frequent, and association with proximal occlusion of the artery responsible for the MI, as well as absence of right atrial branches and poor collateral circulation, were significant. Hospitalization was more prolonged in this group, and there was a higher incidence of arrhythmias, complete atrioventricular block, and mortality. CONCLUSIONS: Right atrial ischemia associated with RV infarction leads to a higher incidence of complications and higher mortality. Transesophageal echocardiography is a safe, reproducible technique that provides detailed anatomic information about right chambers and aids in the determination of prognosis and therapeutic decisions. |
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Authors:
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Jesus Vargas-Barrón; Mauricio López-Meneses; Francisco-Javier Roldán; Angel Romero-Cárdenas; Candace Keirns; Nilda Espinola-Zavaleta; Marco Peña-Duque; Carlos Martínez-Sánchez; Marco-Antonio Martinez Ríos |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical cardiology Volume: 25 ISSN: 0160-9289 ISO Abbreviation: Clin Cardiol Publication Date: 2002 Apr |
Date Detail:
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Created Date: 2002-05-09 Completed Date: 2002-10-23 Revised Date: 2004-11-17 |
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: 181-6 Citation Subset: IM |
Affiliation:
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Department of Echocardiography, Coronary Care Unit, Instituto Nacional de Cardiología Ignacio Chavez, Mexico City, Mexico. eco_vargas@terra.com.mx |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Atrial Function, Right* Chi-Square Distribution Coronary Angiography Echocardiography, Transesophageal Female Humans Male Middle Aged Myocardial Infarction / ultrasonography* Myocardial Ischemia / ultrasonography* Statistics, Nonparametric Ventricular Dysfunction, Right / ultrasonography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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