Document Detail

Doppler echocardiographic analysis of cardiac flow during the Mueller manoeuver.
MedLine Citation:
PMID:  1907558     Owner:  NLM     Status:  MEDLINE    
The inspiration against a closed airway, the Mueller manoeuver, leads to a negative intrathoracic pressure. It is controversially discussed whether this is causing an augmentation of right heart murmurs. There is only limited knowledge on the temporal relationship of the negative intrathoracic pressure with right and left ventricular filling and stroke volume. To investigate this relationship, the flow through the mitral, aortic, tricuspid and pulmonary valves was studied continuously by Doppler echocardiography during a standardized Mueller manoeuver in 15 healthy subjects (age 45 +/- 10 years). Five heart beats after the initiation of the manoeuver, flow through the mitral and aortic valve decreased 12.2 +/- 7.2% (P less than 0.001) and 10.1 +/- 6.6% (P less than 0.001), respectively. A transient increase of 15.1 +/- 9.2% (P less than 0.001) in tricuspid flow was followed by a 14.3 +/- 9.8% (P less than 0.005) increase of flow through the pulmonary artery. Ten heart beats after the initiation of the Mueller manoeuver, flow through the pulmonary artery again reached baseline, while tricuspid flow remained below baseline values. In contrast to previous studies, our results indicate that the Mueller manoeuver causes a small and transient increase in right ventricular stroke volume which is unlikely to cause a marked augmentation in right heart murmurs.
S Andreas; G S Werner; G Sold; V Wiegand; H Kreuzer
Related Documents :
20351018 - Tricuspid valve replacement with a fresh antibiotic preserved tricuspid homograft.
15952318 - Successful repair of traumatic tricuspid valve regurgitation.
20732548 - Destruction of the tricuspid septal leaflet: correction by bicuspidization.
1907558 - Doppler echocardiographic analysis of cardiac flow during the mueller manoeuver.
6511818 - Thermographic evaluation of myocardial cooling and intraoperative control of graft pate...
22668868 - Bicuspid aortic valve and associated aortic dilation in the young.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of clinical investigation     Volume:  21     ISSN:  0014-2972     ISO Abbreviation:  Eur. J. Clin. Invest.     Publication Date:  1991 Feb 
Date Detail:
Created Date:  1991-09-11     Completed Date:  1991-09-11     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0245331     Medline TA:  Eur J Clin Invest     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  72-6     Citation Subset:  IM    
Department of Cardiology and Pulmonary, University of Göttingen, FRG.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Coronary Circulation / physiology*
Echocardiography, Doppler*
Middle Aged
Pulmonary Circulation / physiology
Respiratory Mechanics / physiology
Stroke Volume / physiology
Ventricular Function, Left / physiology
Ventricular Function, Right / physiology

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

Previous Document:  Increased insulin-stimulated glucose uptake by exercised human muscles one day after prolonged physi...
Next Document:  The influence of gestational age on bilirubin conjugation in newborns.