title: Heart rate variability in children with inflammatory bowel diseases.
abstract: OBJECTIVE
  Heart rate variability (HRV) oscillations are used in the detection of autonomic instabilities in various clinical disorders.
  
  
  METHODS
  We compared the HRV as a possible marker of chronic distress in children with inflammatory bowel disease (IBD) with HRV frequencies in the healthy controls. Participants were 29 children with IBD (19 Crohn's disease and 10 ulcerative colitis), 25 children were in remission and 4 presented mild disease activity. They were compared with the control group of 35 healthy children of the same age (13-16 years-old).
  
  
  RESULTS
  In HRV assessment, adolescents with IBD had significantly lower levels of the spectral activity in an LF band in all three positions; lower levels of VLF in both supine positions; and the ratio of the spectral activity at LF/HF was significantly lower in the second post (standing).
  
  
  CONCLUSIONS
  These results indicate children with IBD have less adaptability to stress.
authors: Department of Psychiatry, Faculty of Medicine and Dentistry, Palacky University Olomouc, and University Hospital Olomouc, Czech Republic.
authors: Daniela
authors: D
authors: Jelenova
authors: Department of Psychiatry, Faculty of Medicine and Dentistry, Palacky University Olomouc, and University Hospital Olomouc, Czech Republic.
authors: Marie
authors: M
authors: Ociskova
authors: Department of Psychiatry, Faculty of Medicine and Dentistry, Palacky University Olomouc, and University Hospital Olomouc, Czech Republic.
authors: Jan
authors: J
authors: Prasko
authors: Department of Psychiatry, Faculty of Medicine and Dentistry, Palacky University Olomouc, and University Hospital Olomouc, Czech Republic.
authors: Martina
authors: M
authors: Hunkova
authors: Department of Pediatrics, Faculty of Medicine and Dentistry, University Palacky Olomouc, University Hospital Olomouc, Czech Republic.
authors: Eva
authors: E
authors: Karaskova
authors: Department of Pediatrics, Faculty of Medicine and Dentistry, University Palacky Olomouc, University Hospital Olomouc, Czech Republic.
authors: Jana
authors: J
authors: Kolarova
authors: Department of Pediatrics, Faculty of Medicine and Dentistry, University Palacky Olomouc, University Hospital Olomouc, Czech Republic.
authors: David
authors: D
authors: Vydra
authors: Department of Pediatrics, Faculty of Medicine and Dentistry, University Palacky Olomouc, University Hospital Olomouc, Czech Republic.
authors: Vladimir
authors: V
authors: Mihal
mesh_terms: D000293:Adolescent; D001341:Autonomic Nervous System / Q000503:physiopathology*; D003093:Colitis, Ulcerative / Q000503:physiopathology; D003424:Crohn Disease / Q000503:physiopathology; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000503:physiopathology*; D008297:Male