Corrected QT interval (QTc) prolongation and syncope associated with pseudohypoparathyroidism and hypocalcemia.
case_report · Level V
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Abstract
An adolescent presented with exercise-associated syncope and electrocardiographic corrected QT interval (QTc) prolongation. Pseudohypoparathyroidism-induced hypocalcemia was diagnosed. The QTc (485 to 505 milliseconds) shortened during normalization of calcium levels, and syncope has not reoccurred.
Medical subject headings
- Electrocardiography
- Hypocalcemia
- Long QT Syndrome
- Pseudohypoparathyroidism
- Syncope