Australian School of Advanced Medicine,
Sydney
Australia
Case Report
Decreased Sample Entropy to Orthostatic Challenge in Anorexia Nervosa
Author(s): Jelinek HF, Cornforth DJ, Tarvainen MP, Spence I and Russell JJelinek HF, Cornforth DJ, Tarvainen MP, Spence I and Russell J
Objective: The objective was to determine changes in heart rate variability (HRV) in response to orthostatic challenge in a convenience sample of patients with anorexia nervosa compared to age-matched controls. A decrease in HRV has been shown to correlate with an increased risk of heart attack in coronary artery disease and heart failure patients.
Method: Clinical data and ECG recordings were collected from 37 patients with eating disorders of which 16 had a diagnosis of anorexia nervosa and 42 controls. HRV was analyzed using linear and nonlinear methods during rest and orthostatic challenge from sitting to standing.
Results: Significant sympathovagal changes were identified in the anorexia nervosa group, especially with nonlinear HRV parameters and orthostatic challenge. Sample entropy, a nonlinear measure provi.. Read More»
DOI:
10.4172/2167-0943.1000226
Journal of Metabolic Syndrome received 48 citations as per Google Scholar report