title: Evaluation of heart rate variability and night-time blood pressure measurements in patients with idiopathic sudden sensorineural hearing loss.
abstract: OBJECTIVE
  The aim of this study is to investigate the role of the autonomic nervous system in the etiology of idiopathic sudden sensorineural hearing loss (ISSHL) by measuring heart rate variability (HRV) and night-time blood pressure levels.
  
  
  METHODS
  A total of 58 patients, 31 ISSHL patients (group 1) and 27 healthy volunteers (control group; group 2), were included in this study. Clinical and ambulatory blood pressure measurements and Holter electrocardiography were performed in both groups. After these evaluations, HRV parameters and night-time blood pressure values were determined.
  
  
  RESULTS
  Mean systolic blood pressure (SBP) and mean diastolic blood pressure (DBP) measured at night-time were higher in group 1 compared to group 2 (p < 0.05). Heart rate variability parameters were lower in group 1 than in group 2.
  
  
  CONCLUSIONS
  In patients with ISSHL, elevated blood pressure at night-time and reduced heart rate variability suggest that autonomic nervous system dysfunction might play a role in the etiopathogenesis of the disease. The measurements of ambulatory blood pressure and heart rate variability can reveal more enlightening data in the determination of the etiology of ISSHL and guiding the treatment.
authors.affiliation: Department of Cardiology, Erzurum Education and Research Hospital, Erzurum, Turkey. demirelli23@yahoo.com.
authors.forename: S
authors.initials: S
authors.lastname: Demirelli
authors.forename: H
authors.initials: H
authors.lastname: Degirmenci
authors.forename: S
authors.initials: S
authors.lastname: Fırtına
authors.forename: I
authors.initials: I
authors.lastname: Salcan
authors.forename: E
authors.initials: E
authors.lastname: Ermis
authors.forename: H
authors.initials: H
authors.lastname: Duman
authors.forename: E
authors.initials: E
authors.lastname: Ipek
authors.forename: H
authors.initials: H
authors.lastname: Hamur
authors.forename: G
authors.initials: G
authors.lastname: Ceyhun
mesh_terms: D000328:Adult; D000368:Aged; D001341:Autonomic Nervous System / Q000503:physiopathology; D001794:Blood Pressure / Q000502:physiology*; D018660:Blood Pressure Monitoring, Ambulatory / Q000379:methods*; D015716:Electrocardiography, Ambulatory / Q000379:methods; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000503:physiopathology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000503:physiopathology; D008297:Male; D008875:Middle Aged