Document Detail

Relationship of pulmonary venous flow pattern to mean left atrial pressure and phasic pressure change.
MedLine Citation:
PMID:  8725318     Owner:  NLM     Status:  MEDLINE    
To assess the correlation of pulmonary venous flow pattern with the magnitude of the dynamic change in left atrial pressure (i.e. x and y descents) and to elucidate the way how pulmonary venous flow pattern reflects left atrial pressure, we studied 35 patients with normal sinus rhythm undergoing transesophageal echocardiography and cardiac catheterization. The ratio of peak systolic/diastolic flow correlated well with the ratio of x/y descent (r = 0.88) and the ratio of systolic/diastolic velocity-time integral (r = 0.89). The correlation between the ratio of systolic/diastolic flow or velocity-time integral and mean atrial pressure was less strong (r = -0.49 and -0.70, respectively). We conclude that the ratio of peak systolic/diastolic flow velocity, or the ratio of systolic/diastolic velocity-time integral of pulmonary venous flow reflects the phasic change in left atrial pressure more appropriately than the mean left atrial pressure. Due to the good correlation between the phasic change in left atrial pressure and pulmonary venous flow pattern, the flow pattern of pulmonary veins could be used to identify diseases with specific patterns of left atrial pressure.
J M Lin; Y H Li; K L Hsu; J J Hwang; Y Z Tseng
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cardiology     Volume:  87     ISSN:  0008-6312     ISO Abbreviation:  Cardiology     Publication Date:    1996 May-Jun
Date Detail:
Created Date:  1996-10-01     Completed Date:  1996-10-01     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  1266406     Medline TA:  Cardiology     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  224-9     Citation Subset:  IM    
Department of Internal Medicine, National Taiwan University Hospital, Taipei, Republic of China.
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MeSH Terms
Atrial Function*
Blood Pressure*
Echocardiography, Transesophageal
Heart Diseases / physiopathology*,  ultrasonography
Middle Aged
Mitral Valve Insufficiency / physiopathology,  ultrasonography
Pulmonary Veins / physiology*
Pulmonary Wedge Pressure
Regional Blood Flow

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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