Document Detail


The fetal heart monitor tracing in pregnancies complicated by fetal thyrotoxicosis.
MedLine Citation:
PMID:  19067279     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Fetal tachycardia caused by the transplacental passage of thyroid stimulating immunoglobulin is well established, but very little information exists regarding the fetal heart rate appearance of this form of tachycardia. Two cases of fetal tachycardia are described in pregnancies complicated by fetal thyrotoxicosis where maternal thyroid history was unknown at the time of testing. For each pregnancy, the fetal heart monitor tracing is depicted and described. In both cases, the initial fetal heart rate pattern demonstrated a sustained baseline of 170 to 180 beats per minute with moderate variability that exhibited accelerations with a lack of decelerations. The tracings were essentially normal except for the baseline rate. When reviewing the differential for fetal tachycardia presenting in the antenatal period, this pattern is unique to fetal thyrotoxicosis, especially if the mother is afebrile and there is no history of medication usage that could explain this presentation.
Authors:
Craig V Towers; Steven Thomas; Ralph M Steiger
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2008-12-09
Journal Detail:
Title:  American journal of perinatology     Volume:  26     ISSN:  1098-8785     ISO Abbreviation:  Am J Perinatol     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-05-29     Completed Date:  2009-09-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  373-7     Citation Subset:  IM    
Affiliation:
Long Beach Memorial Women's Hospital, Long Beach, California, USA. drtowers@rbcpress.com
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MeSH Terms
Descriptor/Qualifier:
Adult
Antithyroid Agents / therapeutic use
Cardiotocography*
Female
Follow-Up Studies
Heart Rate, Fetal* / drug effects
Humans
Pregnancy
Pregnancy Complications* / diagnosis,  drug therapy
Pregnancy Outcome
Propylthiouracil / therapeutic use
Tachycardia / diagnosis*,  etiology*
Thyrotoxicosis / complications*,  diagnosis,  drug therapy
Thyroxine / therapeutic use
Treatment Outcome
Chemical
Reg. No./Substance:
0/Antithyroid Agents; 51-52-5/Propylthiouracil; 7488-70-2/Thyroxine

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


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