title: Late neonatal hypocalcemic tetany as a manifestation of unrecognized maternal primary hyperparathyroidism.
abstract: Maternal primary hyperparathyroidism causing hypercalcemia during pregnancy can suppress fetal and neonatal parathyroid hormone secretion. We report a newborn with transient hypoparathyroidism presented by hypocalcemic seizure and tetany on the 21st postnatal day in whom the final diagnosis was asymptomatic maternal primary hyperparathyroidism. Neonatal hypocalcemia usually occurs early in life in infants of maternal primary hyperparathyroidism, and although it is very rare, further investigation for unexplained late-onset hypocalcemia may reveal this diagnosis.
authors.affiliation: Division of Neonatology, Department of Pediatrics, Ankara University Faculty of Medicine, Ankara, Turkey. drufukcakir@hotmail.com.
authors.forename: Ufuk
authors.initials: U
authors.lastname: Çakır
authors.forename: Serdar
authors.initials: S
authors.lastname: Alan
authors.forename: Ömer
authors.initials: Ö
authors.lastname: Erdeve
authors.forename: Begüm
authors.initials: B
authors.lastname: Atasay
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Şıklar
authors.forename: Merih
authors.initials: M
authors.lastname: Berberoğlu
authors.forename: Saadet
authors.initials: S
authors.lastname: Arslan
mesh_terms: D000328:Adult; D002118:Calcium / Q000097:blood; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D049950:Hyperparathyroidism, Primary / Q000097:blood / Q000150:complications*; D006996:Hypocalcemia / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D010281:Parathyroid Hormone / Q000097:blood; D011247:Pregnancy; D011248:Pregnancy Complications; D013746:Tetany; D013997:Time Factors
chemical_list: D010281:Parathyroid Hormone; D002118:Calcium