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Heart rate variability and left ventricular diastolic function in anorexia nervosa.
Fabio Galetta1, Ferdinando Franzoni, Fernando Prattichizzo
1Department of Internal Medicine, University of Pisa School of Medicien, Via Roma 67, 56126, Pisa, Italy. fgaletta@med.uni.pi
Summary
Adolescents with anorexia nervosa exhibit cardiovascular vagal hyperactivity, impacting heart function. Heart rate variability and diastolic function analysis are key for monitoring these anorexia-induced cardiac changes.
Area of Science:
- Cardiology
- Pediatrics
- Psychiatry
Background:
- Anorexia nervosa (AN) is an eating disorder with significant health consequences.
- Cardiac complications are a major concern in patients with AN.
Purpose of the Study:
- To investigate the cardiac effects of starvation in adolescents with anorexia nervosa.
- To compare cardiac function in AN patients with healthy controls.
Main Methods:
- Echocardiogram and 24-hour electrocardiogram monitoring were used.
- Heart rate variability (HRV) indices were evaluated in 25 AN patients and 50 controls.
Main Results:
- AN patients showed greater HRV time domain indices (SDNN) and a lower LF/HF ratio.
- Reduced left ventricular mass and altered diastolic patterns (higher E/A ratio) were observed in AN patients.
Conclusions:
- Cardiovascular vagal hyperactivity is present in AN and influences ventricular diastolic dynamics.
- HRV and diastolic function analysis are valuable for monitoring cardiac modifications in AN.