[Electrocardiographic and echocardiographic findings in children with overweight and obesity].
OBJECTIVE
Obesity is associated with cardiovascular risk factors and heart failure.


METHODS
Thirty children with overweight or obesity were matched with 30 healthy children. Corrected QT interval (QTc) and QT dispersion (QTd), left ventricular mass, left ventricular mass index, fractional shortening and fractional ejection, were measured.


RESULTS
QTc and QTd were significantly greater in patients with overweight or obesity than in the control group. Left ventricular mass and left ventricular mass index were significantly higher in overweight or obese children than in controls.


CONCLUSIONS
Children with overweight-obesity have an increase of corrected QT and QT interval dispersion and of the volume and mass of the left ventricle and a greater risk of arrhythmia, in relation to controls. These results make consider the need for a special cardiac monitoring of obese children, especially in the severe forms.
Olivares López
José Luis
JL
Departamento de Pediatría, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain. olivares@unizar.es
Vázquez Olivares
Margarita
M
Fleta Zaragozano
Jesús
J
Moreno Aznar
Luis Angel
LA
Bueno Sánchez
Manuel
M
D001835:Body Weight; D002318:Cardiovascular Diseases / Q000175:diagnosis* / Q000453:epidemiology*; D016022:Case-Control Studies; D002648:Child; D004562:Electrocardiography; D006801:Humans; D008133:Long QT Syndrome / Q000175:diagnosis / Q000453:epidemiology; D009765:Obesity / Q000453:epidemiology*; D012720:Severity of Illness Index