Document Detail

Routine investigations might be useful in pre-eclampsia, but not in gestational hypertension.
MedLine Citation:
PMID:  15760317     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Women referred to secondary care with suspected pregnancy-induced hypertension (PIH) are commonly investigated with blood tests and cardiotocography (CTG), regardless of the clinical severity of their condition. Over-investigation might lead to inappropriate intervention. AIMS: To investigate how often abnormal blood test and CTG results occur in women with pre-eclampsia and gestational hypertension and in women who do not have pregnancy-induced hypertension. METHODS: Retrospective case note review of 526 consecutive women referred with suspected pregnancy-induced hypertension to a district hospital. The frequency of abnormal test results and the pregnancy outcomes were analysed according to clinical classification. RESULTS: 36% of women referred did not meet the clinical criteria for a diagnosis of pregnancy-induced hypertension. Abnormalities of platelet count and/or liver function were seen in 11% of women with pre-eclampsia and in less than 2% of women with gestational hypertension and in a similar proportion of women who did not have pregnancy-induced hypertension. Gestational hypertension was associated with increased induction and caesarean birth rates, but not with low birthweight or preterm delivery. Progression from gestational hypertension to pre-eclampsia was not predicted by blood test abnormalities. Support for the routine use of antenatal CTG was not found. CONCLUSIONS: A clinical diagnosis of pregnancy-induced hypertension should be confirmed before blood tests are ordered. The incidence of test abnormalities was only increased in pre-eclampsia and in gestational hypertension before term. CTG might only be of use in selected cases.
David J Bailey; Stuart M Walton
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Australian & New Zealand journal of obstetrics & gynaecology     Volume:  45     ISSN:  0004-8666     ISO Abbreviation:  Aust N Z J Obstet Gynaecol     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-03-11     Completed Date:  2005-08-15     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0001027     Medline TA:  Aust N Z J Obstet Gynaecol     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  144-7     Citation Subset:  IM    
Middlemore Hospital, Private Bag 93311, Otahuhu, Auckland, New Zealand.
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MeSH Terms
Diagnostic Tests, Routine
Hypertension, Pregnancy-Induced / blood,  diagnosis
Pre-Eclampsia / blood,  diagnosis*
Predictive Value of Tests
Pregnancy Outcome
Retrospective Studies

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