Miyao Masafumi, Aoki Yoshihiro, Mizushiro Naoto, Kitazawa Reiko, Nakamura Chizuko
Department of Pediatrics, Aizawa Hospital, Matsumoto, JPN.
Department of Emergency and Critical Care Medicine, Aizawa Hospital, Matsumoto, JPN.
Cureus. 2023 Jan 29;15(1):e34352. doi: 10.7759/cureus.34352. eCollection 2023 Jan.
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.
由于低钙血症并不常见，许多急诊医学诊所并不常规检测血清钙水平。我们报告一例因低钙血症导致短暂意识丧失的青春期女孩病例。一名13岁健康女孩发生晕厥，伴有四肢麻木。入院时，她意识清醒，但发现有低钙血症和QT间期延长。在仔细考虑可能的病因后，患者被诊断为原发性甲状旁腺功能减退所致的获得性QT间期延长。通过活性维生素D和补钙控制患者的血清钙水平。原发性甲状旁腺功能减退相关的低钙血症即使在既往健康的青少年中也可导致QT间期延长和神经并发症。
