Document Detail


Myocardial blood flow heterogeneity in shock and small-volume resuscitation in pigs with coronary stenosis.
MedLine Citation:
PMID:  9390952     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Myocardial blood flow heterogeneity in shock and small-volume resuscitation in pigs with coronary stenosis. J. Appl. Physiol. 83(6): 1832-1841, 1997.-We analyzed the effects of shock and small-volume resuscitation in the presence of coronary stenosis on fractal dimension (D) and spatial correlation (SC) of regional myocardial perfusion. Hemorrhagic shock was induced and maintained for 1 h. Pigs were resuscitated with hypertonic saline-dextran 60 [HSDex, 10% of shed blood volume (SBV)] or normal saline (NS; 80% of SBV). Therapy was continued after 30 min with dextran (10% SBV). At baseline, D was 1.39 +/- 0.06 (mean +/- SE; HSDex group) and 1.34 +/- 0.04 (NS group). SC was 0.26 +/- 0.07 (HSDex) and 0.26 +/- 0.04 (NS). Left anterior descending coronary artery stenosis changed neither D nor SC. Shock significantly reduced D (i.e., homogenized perfusion): 1.26 +/- 0.06 (HSDex) and 1.23 +/- 0.05 (NS). SC was increased: 0.41 +/- 0.1 (HSDex) and 0.48 +/- 0.07 (NS). Fluid therapy with HSDex further decreased D to 1.22 +/- 0.05, whereas NS did not change D. SC was increased by both HSDex (0.56 +/- 0.1) and NS (0.53 +/- 0.06). At 1 h after resuscitation, SC was constant in both groups, and D was reduced only in the NS group (1.18 +/- 0.02). We conclude that hemorrhagic shock homogenized regional myocardial perfusion in coronary stenosis and that fluid therapy failed to restore this.
Authors:
M Kleen; M Welte; P Lackermeier; O Habler; G Kemming; K Messmer
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  83     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  1997 Dec 
Date Detail:
Created Date:  1998-02-10     Completed Date:  1998-02-10     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol (1985)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1832-41     Citation Subset:  IM    
Affiliation:
Institute for Surgical Research, University of Munich, 81366 Munich, Germany. kleen@icf.med.uni-muenchen.de
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MeSH Terms
Descriptor/Qualifier:
Acid-Base Equilibrium / physiology
Animals
Cardiopulmonary Resuscitation*
Coronary Circulation / physiology*
Coronary Disease / physiopathology*
Hemodynamics / physiology
Microspheres
Saline Solution, Hypertonic
Shock, Hemorrhagic / physiopathology*
Swine
Chemical
Reg. No./Substance:
0/Saline Solution, Hypertonic

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


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