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JCU 2017 March;25(1) :12-19.
Published online 2017 March 27. doi:
Evaluation of Cardiac Functions in Children and Adolescents with Type 1 Diabetes
Faten M Abd-El Aziz, MD, Shereen Abdelghaffar, MD Eman M Hussien, MSc, and Aya M Fattouh, MD
Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
Corresponding Author: Aya M Fattouh ,Tel: +20-1001572630, Fax: +20-23646718, Email:
Cardiac dysfunction in patients with type 1 diabetes (T1D) represents one of the serious complications. To evaluate the cardiac function in children with T1D by conventional echocardiography and tissue Doppler imaging (TDI).
The study included 40 T1D patients (age between 6 and 16 years) with > 5 years duration of diabetes and 42 healthy control children. The patients were subjected to clinical evaluation and laboratory investigations [glycosylated hemoglobin A1c (HbA1c), serum lipids and lipoproteins]. Conventional echocardiography and TDI were performed to patients and controls.
The patients had lower early diastolic filling velocity (E wave) of the tricuspid valve and mitral valves with a p value of (0.000 and 0.006, respectively). TDI revealed that patients had lower S’velocity of the T1D, shorter isovolumic contraction time, longer isovolumic relaxation time and lower E/E’ of the right ventricle than controls (p value 0.002, 0.001, 0.004, 0.003, and 0.016, respectively). The left ventricle (LV)-T1D of the patients was significantly higher (p value 0.02). Twenty eight patients had poor glycemic control without significant differences between them and those with good glycemic control regarding echocardiographic data. Patients with dyslipidemia (13 patients) had higher late diastolic filling velocity of the mitral valve (A) and the lower LV late tissue velocity (A’) (p wave 0.047 and 0.015). No correlation existed between the duration of illness or the level of HbA1c and the echocardiographic parameters.
Diabetic children have evidence of echocardiographic diastolic dysfunctions. Periodic cardiac evaluation with both conventional and tissue Doppler echocardiography is recommended for early detection of this dysfunction.
Keywords: Tissue Doppler echocardiography · Type 1 diabetes · Children · Diabetic cardiomyopathy
Volume 25, No 4
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