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Does targeted pre-load optimisation by stroke volume variation attenuate a reduction in cardiac output in the prone position.
MedLine Citation:
PMID:  22452326     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The prone position can reduce cardiac output by up to 25% due to reduced preload. We hypothesised that preload optimisation targeted to stroke volume variation before turning prone might alleviate this. A supine threshold stroke volume variation of 14% in a preliminary study identified patients whose cardiac outputs would decline when turned prone. In 45 patients, cardiac output declined only in the group whose supine stroke volume variation was high (mean (SD) 5.1 (2.0) to 3.9 (1.9) l.min(-1) ; p < 0.001), but not in patients in whom it was low, or in those in whom stroke volume variation was high, but who received volume preload (p = 0.525 and 0.941, respectively). We conclude that targeted preload optimisation using a supine stroke volume variation value < 14% is effective in preventing falls in cardiac output induced by the prone position.
Authors:
C-Y Wu; T-S Lee; K-C Chan; C-S Jeng; Y-J Cheng
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-27
Journal Detail:
Title:  Anaesthesia     Volume:  -     ISSN:  1365-2044     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Anaesthesia © 2012 The Association of Anaesthetists of Great Britain and Ireland.
Affiliation:
 Chief Resident Anesthesiologist  Staff Anesthesiologist  Assistant Professor, Department of Anesthesiology, National Taiwan University Hospital, Taipei, Taiwan.
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