| Assessment of the peak tricuspid regurgitant velocity from the dynamics of retrograde flow. | |
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MedLine Citation:
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PMID: 1563851 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We describe a simple, non-invasive and practical method to determine the peak velocity of tricuspid regurgitant flow (and hence derive systolic pulmonary artery pressure) from examination of the dynamics of retrograde tricuspid flow on Doppler. Based on a previously described relationship between right ventricular systolic pressure and the time interval between pulmonary valve closure and tricuspid valve opening, our technique does not require the peak tricuspid regurgitant velocity to be recorded; nor, as in previous studies does it rely upon recording the jugular venous pulse, right ventricular apexcardiogram or invasive pressure measurements. We have studied 65 patients with right ventricular disease (53 with pulmonary hypertension), and 24 with dilated cardiomyopathy, with M-mode, two-dimensional echocardiography, Doppler, and phonocardiography. The peak tricuspid regurgitant velocity could be predicted from the interval between pulmonary closure and the end of the tricuspid regurgitant signal on Doppler in patients with pulmonary hypertension and those with right ventricular disease with normal pulmonary artery pressure, but not in patients with dilated cardiomyopathy. In patients with pulmonary hypertension or right ventricular dilatation, this may be a useful alternative method in estimating pulmonary artery pressure from Doppler, in cases where it is not possible to record the peak tricuspid regurgitant velocity. |
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Authors:
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S J Brecker; H B Xiao; B B Stojnic; M Mbaissouroum; D G Gibson |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: International journal of cardiology Volume: 34 ISSN: 0167-5273 ISO Abbreviation: Int. J. Cardiol. Publication Date: 1992 Mar |
Date Detail:
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Created Date: 1992-05-20 Completed Date: 1992-05-20 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8200291 Medline TA: Int J Cardiol Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 267-71 Citation Subset: IM |
Affiliation:
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Cardiac Department, Royal Brompton National Heart and Lung Hospital, London, U.K. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Blood Flow Velocity / physiology* Echocardiography Echocardiography, Doppler Female Heart Diseases / physiopathology, ultrasonography Humans Hypertension, Pulmonary / physiopathology, ultrasonography Male Middle Aged Tricuspid Valve Insufficiency / physiopathology*, ultrasonography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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