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ECG Changes Including QT Dispersion and Corrected QT Prolongation in Children and Adolescents With Type 1 Diabetes

2017-08-24 18:53:22 | BioPortfolio

Summary

Diabetes Mellitus type 1 is characterized by an absolute insulin deficiency caused by T-cell-mediated autoimmune destruction of pancreatic β-cells . It is the predominant form of diabetes mellitus during childhood and adolescence. Hyperglycemia is a major cause of vascular and neuropathic complications that are seen in patients with diabetes mellitus type 1.

Description

Cardiovascular risk factors remain the most controversial chronic complication in diabetes mellitus type 1 Neuropathy in diabetes mellitus type 1 can lead to abnormalities in the response of the coronary vasculature to sympathetic stimulation, which may manifest clinically as resting tachycardia or bradycardia, exercise intolerance, orthostatic hypotension, loss of the nocturnal decline in blood pressure, or silent myocardial ischemia on cardiac testing. These abnormalities can lead to delayed presentation of cardiovascular disease. An early indicator of cardiac autonomic neuropathy is reduced heart rate variability, which can be assessed qualitatively in the clinic. Limited data suggest silent myocardial ischemia is more common in the presence of cardiac autonomic neuropathy . Cardiovascular mortality is a leading cause of death in Type 1 diabetic patients, in particular in patients with nephropathy.QT dispersion defined as the difference between maximal and minimal QT intervals from different electrocardiogram leads ( the QT interval was defined as the time between the first deflection from the isoelectric PR interval and the visual return of the T wave to the T-P segment ) ,Because these electrocardiogram abnormalities may confer an increased risk of ventricular arrhythmias and sudden cardiac death , early identification may have prognostic value .

Study Design

Conditions

Diabetes Mellitus, Type 1

Intervention

electrocardiogram

Status

Not yet recruiting

Source

Assiut University

Results (where available)

View Results

Links

Published on BioPortfolio: 2017-08-24T18:53:22-0400

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Medical and Biotech [MESH] Definitions

A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

The time period before the development of symptomatic diabetes. For example, certain risk factors can be observed in subjects who subsequently develop INSULIN RESISTANCE as in type 2 diabetes (DIABETES MELLITUS, TYPE 2).

A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

A type of diabetes mellitus that is characterized by severe INSULIN RESISTANCE and LIPODYSTROPHY. The latter may be generalized, partial, acquired, or congenital (LIPODYSTROPHY, CONGENITAL GENERALIZED).

A life-threatening complication of diabetes mellitus, primarily of TYPE 1 DIABETES MELLITUS with severe INSULIN deficiency and extreme HYPERGLYCEMIA. It is characterized by excessive LIPOLYSIS, oxidation of FATTY ACIDS, production of KETONE BODIES, a sweet smell to the breath (KETOSIS;) DEHYDRATION; and depressed consciousness leading to COMA.

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