Document Detail


The effect of anesthesia and surgery on diaphragmatic lymph vessel flow after endotoxin in sheep.
MedLine Citation:
PMID:  2250484     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Increases in diaphragmatic lymph vessel flow (Qdi) may be important in preventing ascites because diaphragmatic lymph vessels drain the peritoneal space. However, lymphatic vessel function may be depressed in anesthetized, open chested animals. To test this hypothesis, we cannulated diaphragmatic lymph vessels in five sheep which were anesthetized with 1-2% halothane. We performed a thoracotomy and cannulated a diaphragmatic lymph vessel in each sheep. Then we infused 0.75-1.0 micrograms/kg of E. coli endotoxin intravenously and we measured Qdi and the lymph protein concentration for 2-4 hrs. The data were compared to previously reported data for five unanesthetized sheep (J. Appl. Physiol. 62:706-710, 1987). At baseline Qdi = 0.8 +/- 0.7 (SD) in the anesthetized sheep and 1.0 +/- 0.8 ml/hr in the unanesthetized sheep. After endotoxin, Qdi increased to 4.5 +/- 3.1 ml/hr in the unanesthetized sheep (p less than 0.05) but Qdi did not change in the anesthetized sheep. However, the lymph protein concentration increased similarly in each group, indicating that endotoxin caused the same degree of injury in each group. Our results indicate that diaphragmatic lymph vessel function is depressed in anesthetized, open chested sheep.
Authors:
J R Elk; T Adair; R E Drake; J C Gabel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Lymphology     Volume:  23     ISSN:  0024-7766     ISO Abbreviation:  Lymphology     Publication Date:  1990 Sep 
Date Detail:
Created Date:  1991-01-16     Completed Date:  1991-01-16     Revised Date:  2006-11-03    
Medline Journal Info:
Nlm Unique ID:  0155112     Medline TA:  Lymphology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  145-8     Citation Subset:  IM    
Affiliation:
Center for Microvascular and Lymphatic Studies, University of Texas Medical School, Houston.
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MeSH Terms
Descriptor/Qualifier:
Analysis of Variance
Anesthesia*
Animals
Ascites / physiopathology,  prevention & control
Blood Pressure
Diaphragm
Endotoxins / pharmacology*
Escherichia coli*
Infusions, Intravenous
Lymphatic System / physiopathology*,  surgery
Pulmonary Artery / physiology
Sheep
Chemical
Reg. No./Substance:
0/Endotoxins

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


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