Document Detail


Sclerosis therapy of bronchial artery attenuates acute lung injury induced by burn and smoke inhalation injury in ovine model.
MedLine Citation:
PMID:  20381969     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: In burned sheep, we showed more than a 10-fold increase in bronchial blood flow following smoke inhalation. It was previously reported that sclerosis of the bronchial artery prior to smoke exposure reduces the pathophysiology of the inhalation insult. We hypothesized that sclerosis of the bronchial artery after insult attenuates smoke/burn-induced acute lung injury.
METHODS: Through an incision at the 4th intercostal space, a catheter was placed via the esophageal artery into the bronchial artery such that the bronchial blood flow remained intact. Acute lung injury was induced by a 40% total body surface area, 3rd degree cutaneous burn and smoke inhalation. Adult female sheep (n=18, 35.6±1.0 kg) were divided into three groups following the injury: (1) sclerosis group: 1h after injury, 4 mL of 70% ethanol was injected into bronchial artery via bronchial catheter, n=6; (2) control group: 1h after injury, an equal dose of saline was injected into bronchial artery via the bronchial catheter, n=6; (3) sham group: no injury and no treatment, n=6. The experiment was conducted in awake animals for 24 h.
RESULTS: Bronchial blood flow, measured by microspheres, was significantly reduced after ethanol injection in the sclerosis group. Pulmonary function, evaluated by measurement of blood gas analysis, pulmonary mechanics, and pulmonary transvascular fluid flux, was severely impaired in the control group. However, pulmonary function was significantly improved by bronchial artery sclerosis.
CONCLUSION: The results of our study clearly demonstrate a crucial role of enhanced bronchial circulation in thermal injury-related morbidity. Decreasing bronchial circulation using pharmacological agents may be an effective strategy in management of burn patients with concomitant smoke inhalation injury.
Authors:
Atsumori Hamahata; Perenlei Enkhbaatar; Hiroyuki Sakurai; Motohiro Nozaki; Daniel L Traber
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2010-04-09
Journal Detail:
Title:  Burns : journal of the International Society for Burn Injuries     Volume:  36     ISSN:  1879-1409     ISO Abbreviation:  Burns     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-01     Completed Date:  2011-04-12     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  8913178     Medline TA:  Burns     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1042-9     Citation Subset:  IM    
Copyright Information:
Published by Elsevier Ltd.
Affiliation:
Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho Shinjuku-ku, Tokyo 162-8666, Japan. a.hamahata@prs.twmu.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Acute Lung Injury / physiopathology*
Animals
Bronchi / blood supply*
Bronchial Arteries* / physiopathology
Disease Models, Animal
Ethanol / therapeutic use*
Female
Pulmonary Circulation / drug effects
Regional Blood Flow / drug effects
Sclerosing Solutions / therapeutic use*
Sheep, Domestic
Smoke Inhalation Injury / physiopathology*
Grant Support
ID/Acronym/Agency:
GM060688/GM/NIGMS NIH HHS; GM66312/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/Sclerosing Solutions; 64-17-5/Ethanol
Comments/Corrections

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


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