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Response to bicycle exercise testing in long-standing juvenile diabetes
Acta Medica Scandinavica
|January 1, 1979
Summary
Juvenile diabetes patients exhibit altered heart rate responses and potential early coronary heart disease indicators compared to healthy individuals, possibly due to autonomic neuropathy.
Area of Science:
- Cardiology
- Endocrinology
- Diabetology
Background:
- Juvenile diabetes (Type 1 diabetes) can affect multiple organ systems.
- Cardiovascular complications are a significant concern in diabetic patients.
- Autonomic neuropathy is a known complication of diabetes.
Purpose of the Study:
- To evaluate cardiac function in patients with juvenile diabetes using submaximal bicycle ergometry.
- To compare cardiovascular responses between diabetic patients and age-matched healthy controls.
- To investigate potential early signs of coronary heart disease in this population.
Main Methods:
- Submaximal bicycle ergometry was performed on 22 patients with juvenile diabetes and 21 healthy controls.
- Resting and exercise heart rates, heart rate response to postural changes, and exercise electrocardiograms (ECG) were assessed.
- Blood pressure, serum cholesterol, triglycerides, and serum creatinine levels were measured.
Main Results:
- Diabetic patients had significantly higher resting, exercise, and post-exercise heart rates compared to controls.
- A reduced heart rate response to postural changes was observed in diabetic patients.
- Five diabetic patients showed pathological exercise ECG findings, suggesting possible early coronary heart disease.
Conclusions:
- Patients with juvenile diabetes display altered heart rate dynamics during exercise and postural changes.
- These cardiovascular changes may be linked to autonomic neuropathy in diabetic individuals.
- Early detection of cardiac abnormalities is crucial in managing juvenile diabetes.