Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl

As hypocalcemia is uncommon, serum calcium levels are not routinely measured in many emergency medicine clinics. We report a case of an adolescent girl with a transient loss of consciousness due to hypocalcemia. A 13-year-old healthy girl had a syncopal episode complicated with numbness in the extre...

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Autores principales: Miyao, Masafumi, Aoki, Yoshihiro, Mizushiro, Naoto, Kitazawa, Reiko, Nakamura, Chizuko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2023
Materias:
Endocrinology/Diabetes/Metabolism
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9974353/
https://www.ncbi.nlm.nih.gov/pubmed/36865979
http://dx.doi.org/10.7759/cureus.34352
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author Miyao, Masafumi
Aoki, Yoshihiro
Mizushiro, Naoto
Kitazawa, Reiko
Nakamura, Chizuko
author_facet Miyao, Masafumi
Aoki, Yoshihiro
Mizushiro, Naoto
Kitazawa, Reiko
Nakamura, Chizuko
author_sort Miyao, Masafumi
collection PubMed
description As hypocalcemia is uncommon, serum calcium levels are not routinely measured in many emergency medicine clinics. We report a case of an adolescent girl with a transient loss of consciousness due to hypocalcemia. A 13-year-old healthy girl had a syncopal episode complicated with numbness in the extremities. On admission, she was fully conscious, but hypocalcemia and QT prolongation were noted. After careful consideration of the possible etiologies, the patient was diagnosed with acquired QT prolongation due to primary hypoparathyroidism. The patient’s serum calcium levels were controlled by activated vitamin D and calcium supplementation. Primary hypoparathyroidism-associated hypocalcemia can cause QT prolongation and neurological complications, even in previously healthy adolescents.
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spelling pubmed-99743532023-03-01 Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl Miyao, Masafumi Aoki, Yoshihiro Mizushiro, Naoto Kitazawa, Reiko Nakamura, Chizuko Cureus Endocrinology/Diabetes/Metabolism As hypocalcemia is uncommon, serum calcium levels are not routinely measured in many emergency medicine clinics. We report a case of an adolescent girl with a transient loss of consciousness due to hypocalcemia. A 13-year-old healthy girl had a syncopal episode complicated with numbness in the extremities. On admission, she was fully conscious, but hypocalcemia and QT prolongation were noted. After careful consideration of the possible etiologies, the patient was diagnosed with acquired QT prolongation due to primary hypoparathyroidism. The patient’s serum calcium levels were controlled by activated vitamin D and calcium supplementation. Primary hypoparathyroidism-associated hypocalcemia can cause QT prolongation and neurological complications, even in previously healthy adolescents. Cureus 2023-01-29 /pmc/articles/PMC9974353/ /pubmed/36865979 http://dx.doi.org/10.7759/cureus.34352 Text en Copyright © 2023, Miyao et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Endocrinology/Diabetes/Metabolism
Miyao, Masafumi
Aoki, Yoshihiro
Mizushiro, Naoto
Kitazawa, Reiko
Nakamura, Chizuko
Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl
title Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl
title_full Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl
title_fullStr Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl
title_full_unstemmed Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl
title_short Transient Loss of Consciousness Associated With Severe Hypocalcemia and QT Prolongation Due to Primary Hypoparathyroidism in an Adolescent Girl
title_sort transient loss of consciousness associated with severe hypocalcemia and qt prolongation due to primary hypoparathyroidism in an adolescent girl
topic Endocrinology/Diabetes/Metabolism
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9974353/
https://www.ncbi.nlm.nih.gov/pubmed/36865979
http://dx.doi.org/10.7759/cureus.34352
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