| Doppler assessment of right ventricular filling dynamics during volume loading in ischemic heart disease. | |
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MedLine Citation:
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PMID: 1710955 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To assess the effects of volume loading on right ventricular (RV) filling dynamics, the RV inflow pattern was recorded using pulsed Doppler echocardiography (PDE) during dextran infusion in 7 normal subjects (Group I) and 24 patients with ischemic heart disease. The patients with ischemic heart disease were divided into three groups according to the left ventricular (LV) and RV ejection fractions (EF). Group II consisted of 11 patients whose LVEF and RVEF exceeded 50%. Group III consisted of 7 patients whose LVEF was lower than 50% and RVEF was higher than 50%. Group IV was comprised of 6 patients whose LVEF and RVEF were lower than 50%. Peak flow velocity of the RV rapid filling wave in early diastole [R(T)] and that of the atrial contraction wave [A(T)] were measured, and the ratio of A(T) to R(T) [A(T)/R(T)] in each cardiac cycle was calculated. In some of the subjects, simultaneous right-sided cardiac catheterization was performed with a Swan-Ganz thermodilution catheter. The LV and RV function during volume loading were calculated according to the following formulae: delta Stroke volume index (SVI)/delta pulmonary artery wedge pressure (PAWP) and delta SVI/delta right atrial pressure (RAP), respectively. After dextran infusion, R(T) increased significantly in Groups I, II, and III, but not in Group IV. The A(T) and A(T)/R(T) ratio remained unchanged in all groups. The percent change of the R(T) correlated well with delta SVI/delta RAP (r = 0.56, p less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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M Odake; M Takeuchi; H Fukuzaki |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical cardiology Volume: 14 ISSN: 0160-9289 ISO Abbreviation: Clin Cardiol Publication Date: 1991 May |
Date Detail:
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Created Date: 1991-07-23 Completed Date: 1991-07-23 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: 402-8 Citation Subset: IM |
Affiliation:
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First Department of Internal Medicine, Kobe University School of Medicine, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Angiography Blood Flow Velocity / drug effects, physiology Coronary Disease / diagnosis, drug therapy, physiopathology* Dextrans / administration & dosage Echocardiography, Doppler* Female Heart Catheterization Heart Rate / drug effects, physiology Humans Infusions, Intravenous Male Middle Aged Stroke Volume / drug effects, physiology* Ventricular Function, Right / drug effects, physiology* |
| Chemical | |
Reg. No./Substance:
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9004-54-0/Dextrans |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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