Document Detail

Reporting of 'hypotension' after epidural analgesia during labour. Effect of choice of arm and timing of baseline readings.
MedLine Citation:
PMID:  9534634     Owner:  NLM     Status:  MEDLINE    
We studied 20 women in labour to see how reporting 'hypotension' after obstetric epidural analgesia is affected by position of the blood pressure cuff and baseline definition. Blood pressure was recorded from both arms simultaneously while the woman was semirecumbent and then in the left lateral position. Three readings were then taken after epidural bupivacaine, one left lateral and the remainder right lateral. Before the epidural, blood pressure in the dependent arm in the lateral position was similar to blood pressure in either arm in the semirecumbent position and an average of 10 mmHg (systolic) and 14 mmHg (diastolic) higher than blood pressure in the uppermost arm (p < or = 0.00005). This difference persisted in both lateral positions as epidural analgesia became established. Choosing different definitions of hypotension, baselines and arm to measure blood pressure resulted in 'hypotension rates' between 0% and 75%. For blood pressure measurement in the lateral position, the blood pressure cuff should be placed on the dependent arm.
S M Kinsella; A M Black
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Anaesthesia     Volume:  53     ISSN:  0003-2409     ISO Abbreviation:  Anaesthesia     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-04-16     Completed Date:  1998-04-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  131-5     Citation Subset:  AIM; IM    
Sir Humphry Davy Department of Anaesthesia, St Michael's Hospital, Bristol, UK.
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MeSH Terms
Analgesia, Epidural / adverse effects*
Analgesia, Obstetrical / adverse effects*
Blood Pressure / physiology
Blood Pressure Determination / methods*
Hypotension / chemically induced*,  diagnosis
Posture / physiology
Time Factors

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

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