TITLE

Pseudohypoparathyroidism Presenting with Ventricular Arrhythmia: A Case Report

AUTHOR(S)
Işıkay, Sedat; Akdemir, İlyas; Yılmaz, Kutluhan
PUB. DATE
March 2012
SOURCE
Journal of Clinical Research in Pediatric Endocrinology;Mar2012, Vol. 4 Issue 1, p42
SOURCE TYPE
Academic Journal
DOC. TYPE
Case Study
ABSTRACT
Pseudohypoparathyroidism (PHP) is a rare disorder characterized by varying degrees of unresponsiveness to parathyroid hormone. Patients usually present with hypocalcemia-induced seizures or tetany, whereas no case of hypocalcemia-induced cardiac arrhythmia in PHP has been described to date. In this paper, we report the case of a male adolescent with PHP type 1a who presented with hypocalcemia-induced ventricular extrasystoles (bigeminy, trigeminy) and mild corrected QT interval prolongation. The patient had brachydactyly and his second fingers and toes were longer than the others, a finding consistent with PHP. Laboratory tests detected hypomagnesemia, as well as elevated levels of creatine kinase and lactate dehydrogenase. Ventricular arrhythmia and abnormal laboratory tests improved with calcium supplementation and vitamin D treatment. The findings in this patient suggest that hypomagnesemia may make patients with PHP more susceptible to hypocalcemia and may thus prompt a state of hypocalcemia-induced arrhythmia or other cardiac complications.
ACCESSION #
73388135

 

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