Subclinical hypothyroidism and dilated cardiomyopathy (DCM) in children

Introduction: Subclinical hypothyroidism is defined by the combination of an elevated thyroid-stimulating hormone (TSH) level and a normal free thyroxine (T4L) level. Dilated cardiomyopathy characterized both dilation ventricles hypokinesia these ventricles. It predominantly involves left ventricle, but right ventricle frequently involved.We present two cases idiopathic dilated associated with subclinical picture hypothyroidism. Case report 1: An 11-year-old female patient was admitted to cardiology for congestive heart failure on CMD; she presented New York Heart Association (NYHA) stage IV dyspnea generalized edema. Tran’s thoracic echocardiography showed ventricular (LV) dilatation global hypokinesia, LV ejection fraction at 15%. The biological workup profile TSH 11.2 mIU/l, T4: 21.2 pmol/l, T3: 4.2pmol/l. 2: A 9-year-old patient, without any notable history, referred department cardiac decompensation NYHA lower limb edema despite optimal medical treatment. severe impairment systolic function (10%). TSH: 7.7 19.2 pmol/l. Conclusion: cardiomyopathies (DCM) represent most common in children either constitutional or acquired origin. observed patients DCM increases risk mortality.