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Full-term-pregnancy effects of antenatal betamethasone administration on short-term variation as assessed by computerized cardiotocography.
MedLine Citation:
PMID:  22905307     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: to verify whether there are other than transitory effects of antenatal betamethasone (administered for fetal lung maturity [FLM] enhancement) on fetal heart rate (FHR) variability detected by computerized cardiotocography (cCTG) in cases where formerly steroid-treated fetuses reached term.
MATERIALS AND METHODS: cCTG of one hundred sixty-four women (study group) exposed to antenatal betamethasone for risk of preterm delivery in third trimester period were compared to controls (pregnancies who presented risk of preterm labour in the same period of cases, although with no steroids administration). cCTG was performed weekly as of standard schedule when pregnancies reach term from 37-40 weeks' gestation for cases and controls.
RESULTS: regarding data concerning cCTG at term for cases and controls, no significant difference was found for FHR, Acc (accelerations) 10 min, and FM (fetal movements) between groups. LV (low variation)/min and LV/msec were absent in cCTG parameters of fetuses in the study group. Instead, for all weeks studied (37 to 40), cCTG parameters were higher for HV (high variation)/msec, STV(short term variation)/msec, and Acc 15 in cases with respect to controls.
CONCLUSION: interestingly, maternal corticosteroid administration may be related to higher fetal reactivity when fetuses exposed to steroid therapy reach term. Our observation may help in the interpretation of a "more reactive" CTG trace in babies whose mothers previously received steroid therapy for FLM enhancement.
Authors:
Juan Piazze; Kathleen Comalli Dillon; Cerekja Albana
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of prenatal medicine     Volume:  6     ISSN:  1971-3290     ISO Abbreviation:  J Prenat Med     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-08-20     Completed Date:  2012-08-23     Revised Date:  2013-05-30    
Medline Journal Info:
Nlm Unique ID:  101522906     Medline TA:  J Prenat Med     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  18-21     Citation Subset:  -    
Affiliation:
Ospedale di Ceprano/Osp. SS Trinità, Sora, (FR) Italy.
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