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pubmed-article:2960725pubmed:abstractTextTo explore the role of right ventricular hypertrophy and chronic obstructive pulmonary disease in the pathogenesis of right ventricular infarction, 27 consecutive patients with a first inferior left ventricular infarction were prospectively studied. Right ventricular infarction was diagnosed using established hemodynamic criteria. Right ventricular hypertrophy was defined as right ventricular free wall thickness greater than or equal to 5 mm. Patients were classified into two groups: Group I patients with right ventricular infarction (n = 15), and Group II patients without right ventricular infarction (n = 12). The ratio of forced expiratory volume over forced vital capacity (FEV1/FVC) and forced expiratory flow between 25 and 75% expired volume (FEF) as a percent of predicted values were significantly reduced in Group I versus Group II (90 +/- 5 versus 105 +/- 6% and 63 +/- 13 versus 103 +/- 15%, respectively; p less than 0.05). This was associated with increased right ventricular wall thickness (Group I 5.5 +/- 0.3 mm versus Group II 3.9 +/- 0.2 mm, p less than 0.001). Multiple logistic regression analysis demonstrated that right ventricular wall thickness was the strongest predictor of right ventricular infarction (p less than 0.0005). No significant difference was found in the site of right coronary occlusion, collateral blood supply or extent of coronary artery disease between the two groups. These findings suggest that right ventricular hypertrophy predisposes patients with acute inferior myocardial infarction to right ventricular infarction independent of the site or extent of coronary artery disease.lld:pubmed
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pubmed-article:2960725pubmed:authorpubmed-author:VaughnW KWKlld:pubmed
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pubmed-article:2960725pubmed:dateRevised2007-11-15lld:pubmed
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pubmed-article:2960725pubmed:year1987lld:pubmed
pubmed-article:2960725pubmed:articleTitleRight ventricular hypertrophy is an important determinant of right ventricular infarction complicating acute inferior left ventricular infarction.lld:pubmed
pubmed-article:2960725pubmed:affiliationDepartment of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee 37232.lld:pubmed
pubmed-article:2960725pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:2960725pubmed:publicationTypeResearch Support, U.S. Gov't, P.H.S.lld:pubmed