| DOES THORACIC PUMP INFLUENCE THE CEREBRAL VENOUS RETURN? | |
| | |
MedLine Citation:
|
PMID: 22174396 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
We assessed the hemodynamic effects induced by the thoracic pump in the intra and extracranial veins of the cerebral venous system on healthy volunteers. Activation of the thoracic pump was standardized among subjects by setting the deep inspiration at 70% of individual vital capacity. Peak velocity (PV), time average velocity (TAV), vein area (VA), and flow quantification (Q) were assessed by means of echo color Doppler in supine posture. Deep respiration significantly increases PV, TAV, and Q, but limitedly to the extracranial veins. To the contrary, no significant hemodynamic changes were recorded at the level of the intracranial venous network. Moreover, at rest TAV in the jugular veins was significantly correlated with Q of the intracranial veins. We conclude that the modulation of the atmospheric pressure operated by the thoracic pump significantly modifies the hemodynamics of the jugular veins and of the reservoir of the neck and facial veins, with no effect on the vein network of the intracranial compartment. |
| | |
Authors:
|
Paolo Zamboni; Erica Menegatti; Luca Pomidori; Sandra Morovic; Angelo Taibi; Anna Maria Malagoni; Anna Luisa Cogo; Mauro Gambaccini |
Related Documents
:
|
2822326 - Serendipitous detection of lung cancer on hepatic imaging. 7762636 - Secretion and clearance of immunoreactive acth by fetal lung. 8848886 - Transpulmonary disposition of prilocaine, mepivacaine, and bupivacaine in humans in the... 11276476 - Total inversion of the left lung circulation: morphologic and functional analyses. 499346 - Analysis of the contractile responses of the ileal segment of the isolated blood-perfus... 10525866 - Anomalous origin of the left coronary artery arising from the pulmonary trunk: report o... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-12-15 |
Journal Detail:
|
Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: - ISSN: 1522-1601 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
|
Created Date: 2011-12-16 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
1University of Ferrara. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Measurement of plasma volume using fluorescent silica-based nanoparticles.
Next Document: Effects of carnosine on contractile apparatus Ca2+-sensitivity and sarcoplasmic reticulum Ca2+ relea...