Document Detail


The centrineurogenic etiology of the respiratory distress syndrome: induction by isolated cerebral hypoxemia and prevention by unilateral pulmonary denervation.
MedLine Citation:
PMID:  962013     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Twenty-eight anemic control dogs were subjected to isolated cerebral hypoxemic (PO2,35+/-5 mm Hg) perfusion for 2 hours. All were found to have functional pulmonary impairment. Two hours later, twenty were sacrificed and found to have the bilateral anatomic complex of the respiratory distress syndrome (RDS). All those not sacrificed expired within 20 hours with progressive respiratory distress and at autopsy had the bilateral anatomic complex. Twenty-three beagles with chronic denervation (autotransplantation) of the left lung also were subjected to the 2 hour isolated cerebral arterial hypoxemic perfusion. Minimal pulmonary functional impairment was measurable in all. Ten of sixteen were long-term survivors. The six that succumbed did not appear to suffer respiratory deaths. These six, as well as seven sacrificed 2 hours after perfusion, had the anatomic complex of RDS in the normally innervated right lungs. However, the denervated left lungs were anatomically normal. These findings are offered as additional evidence that RDS has a centrineurogenic etiology. We postulate the following sequence: "shock" causes cerebral (probably hypothalamic) cellular oxygen deprivation and dysfunction; there is autonomically mediated, increased resistance of the pulmonary venules ("postcapillary sphincters"); this leads to capillary hypertension, congestion, hemorrhage, edema, surfactant inactivation, and atelectasis. Pulmonary denervation blocks this sequence and protects the lung.
Authors:
G Moss; A A Stein
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  American journal of surgery     Volume:  132     ISSN:  0002-9610     ISO Abbreviation:  Am. J. Surg.     Publication Date:  1976 Sep 
Date Detail:
Created Date:  1976-11-01     Completed Date:  1976-11-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370473     Medline TA:  Am J Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  352-7     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Autonomic Nervous System / physiopathology*
Denervation*
Dogs
Female
Hypoxia, Brain / complications*
Lung / innervation*,  pathology
Male
Respiratory Function Tests
Respiratory Insufficiency / pathology,  physiopathology*,  prevention & control

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


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