Neonatal Rickets, Due to Maternal Vitamin D Deficiency, Complicated by Convulsion and Dilated Cardiomyopathy: Case Report
Nadia Mebrouk *
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
Fatima Jabourik
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
Bouchra Chkirat
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
Loubna Chtouki
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
Thami Benouachane
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
Hassan Ait Oamer
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
Abdelali Bentahila
Department of Pediatrics IV, Mohamed V University, Children's Hospital of Rabat, Morocco.
*Author to whom correspondence should be addressed.
Abstract
Deficiency rickets due to maternal hypovitaminosis D cause hypocalcaemia in infants, which may be complicated by dilated cardiomyopathy (DCM) with myocardial dysfunction. Calcium is central in myocardial contraction coupling, and hypocalcemia decreases myocardial contractility. However, dilated cardiomyopathy (DCM) due to hypocalcemia in infants has been rarely reported. Correction of hypocalcemia was associated with resolution of congestive heart failure and the left ventricular (LV) geometry and systolic function.
We report the case of an infant who presented deficiency rickets due to maternal hypovitaminosis D, complicated by convulsion and dilated cardiomyopathy, with good improvement under treatment with calcium and vitamin D.
Keywords: Rickets, hypovitaminosis D, hypocalcemia, dilated cardiomyopathy, DCM