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Intrapartum labetalol for the treatment of maternal and fetal thyrotoxicosis.

Abstract
Maternal thyrotoxicosis complicates approximately 0.2% of pregnancies. Simultaneous occurrence of maternal and fetal thyrotoxicosis during labor is rare, and control of maternal tachycardia and hypertension, as well as fetal manifestations of thyrotoxicosis, are cornerstones of management. An 18-year-old nulliparous female at 33 weeks gestational age presented in labor with thyrotoxicosis. Fetal tachycardia was present as well. Labetalol therapy resulted in a decrease in maternal pulse and blood pressure, and resolution of fetal tachycardia. Vaginal delivery occurred. Subsequent evaluation demonstrated neonatal thyrotoxicosis and high maternal titers of thyroid-stimulating immunoglobulin. In conclusion, labetalol was beneficial in the treatment of maternal and fetal thyrotoxicosis during labor.
AuthorsM L Bowman, M Bergmann, J F Smith
JournalThyroid : official journal of the American Thyroid Association (Thyroid) Vol. 8 Issue 9 Pg. 795-6 (Sep 1998) ISSN: 1050-7256 [Print] United States
PMID9777752 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Labetalol
Topics
  • Adolescent
  • Female
  • Fetal Diseases (drug therapy)
  • Heart Rate, Fetal
  • Humans
  • Hypertension (drug therapy, etiology)
  • Infant, Newborn
  • Infant, Premature
  • Labetalol (therapeutic use)
  • Obstetric Labor, Premature
  • Pregnancy
  • Pregnancy Complications
  • Tachycardia (drug therapy, etiology)
  • Thyrotoxicosis (complications, drug therapy)

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