Document Detail

Early experiences of vasodilators and hypotensive anesthesia in children.
MedLine Citation:
PMID:  22243693     Owner:  NLM     Status:  Publisher    
The physiological application of OHMS LAW explains the basis of hypotensive anesthesia. V = IR translates into: Pressure = Flow × Resistance or Blood pressure = Cardiac Output × Peripheral Resistance. If peripheral resistance is reduced by a vasodilator such as sodium nitroprusside (a short acting, vascular smooth muscle relaxant) or phenoxybenzamine (a long acting α adrenoreceptor antagonist), blood pressure will fall and vasoconstriction and bleeding will be reduced. A less desirable alternative to lowering blood pressure could be to reduce cardiac output by suppressing myocardial contractility using a ß(1) adrenoceptor antagonist or an inhalational agent such as isoflurane.
T C K Brown
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-14
Journal Detail:
Title:  Paediatric anaesthesia     Volume:  -     ISSN:  1460-9592     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206575     Medline TA:  Paediatr Anaesth     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Blackwell Publishing Ltd.
(Formerly) Royal Childrens Hospital, Melbourne, Vic., Australia.
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