Cardiology in the young · 2025
Evaluation of cardiac electrophysiological balance index in children diagnosed with type 1 diabetes mellitus.
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Ertaş Kerem, Gül Özlem, Yıldırım Ruken, Özalkak Şervan
Аннотация
OBJECTIVE: The most common cause of morbidity and mortality in type 1 diabetes mellitus is cardiovascular system involvement. Sudden death has been reported in type 1 diabetes mellitus patients. To analyse the use of the cardiac electrophysiological balance index in predicting ventricular arrhythmias in children with type 1 diabetes mellitus disease.
METHODS: One hundred type 1 diabetes mellitus paediatric patients and 100 healthy children, divided into three groups according to their haemoglobin A1C levels, were included in the study. All participants were evaluated with transthoracic echocardiography, 12-lead electrocardiography, and 24-h Holter after a detailed physical examination. Systolic and diastolic function parameters, electrocardiography intervals, and heart rate variability parameters were evaluated.
RESULTS: The mean age in the type 1 diabetes mellitus and control groups was 11.52 (± 3.52) and 11.78 (± 3.45) years, respectively. In total, 57% of the type 1 diabetes mellitus group and 56% of the control group were male. The mean haemoglobin A1C value was 9.14% (± 1.79) and the disease duration was 3.71 years (± 3.13). The type 1 diabetes mellitus group had a higher QTc duration, deceleration time duration, A velocity, and a lower E/A ratio than the control group. In the type 1 diabetes mellitus group, Tpe, Tpe/QT ratio, QTc/QRS ratio, Tpe/QRS ratio, Tpe/(QT × QRS) ratio values were significantly higher than in the control group.
CONCLUSION: Children with type 1 diabetes mellitus are at risk for atrial and ventricular arrhythmias without valvular disease, ischemic heart disease, or diastolic dysfunction despite normal systolic function. No correlation was found between disease duration, metabolic control, autonomic function parameters, and arrhythmia risk; however, it was associated with diastolic function parameters.
METHODS: One hundred type 1 diabetes mellitus paediatric patients and 100 healthy children, divided into three groups according to their haemoglobin A1C levels, were included in the study. All participants were evaluated with transthoracic echocardiography, 12-lead electrocardiography, and 24-h Holter after a detailed physical examination. Systolic and diastolic function parameters, electrocardiography intervals, and heart rate variability parameters were evaluated.
RESULTS: The mean age in the type 1 diabetes mellitus and control groups was 11.52 (± 3.52) and 11.78 (± 3.45) years, respectively. In total, 57% of the type 1 diabetes mellitus group and 56% of the control group were male. The mean haemoglobin A1C value was 9.14% (± 1.79) and the disease duration was 3.71 years (± 3.13). The type 1 diabetes mellitus group had a higher QTc duration, deceleration time duration, A velocity, and a lower E/A ratio than the control group. In the type 1 diabetes mellitus group, Tpe, Tpe/QT ratio, QTc/QRS ratio, Tpe/QRS ratio, Tpe/(QT × QRS) ratio values were significantly higher than in the control group.
CONCLUSION: Children with type 1 diabetes mellitus are at risk for atrial and ventricular arrhythmias without valvular disease, ischemic heart disease, or diastolic dysfunction despite normal systolic function. No correlation was found between disease duration, metabolic control, autonomic function parameters, and arrhythmia risk; however, it was associated with diastolic function parameters.