Does severe obstructive sleep apnea syndrome alter retrobulbar blood flow? A color Doppler ultrasound study

Çekiç B., Selçuk Ö. T., Toslak İ. E., Osma Ü., Eyigör H., Erol M. K.

Journal of Medical Ultrasonics, vol.45, no.3, pp.487-492, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1007/s10396-018-0860-7
  • Journal Name: Journal of Medical Ultrasonics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.487-492
  • Keywords: Color Doppler ultrasound, Obstructive sleep apnea, Retrobulbar blood flow
  • Akdeniz University Affiliated: Yes

Abstract

Purpose: To evaluate extraocular orbital vessels with color Doppler ultrasound (CDU) and investigate the effects of severe obstructive sleep apnea (OSA) on retrobulbar blood flow. Methods: Between February 2014 and September 2015, 30 patients with severe OSA (apnea–hypopnea index (AHI) > 30) and 28 controls were prospectively included in this study. Intraocular pressure (IOP) was measured with a Goldmann applanation tonometer, and CDU was used to evaluate the retrobulbar vessels. Results: The mean AHI score for the OSA group was 63.2 ± 21.5 per hour. The IOP values were significantly higher in the severe OSA group (p < 0.05). The central retinal artery peak systolic velocity (PSV) (p < 0.05) and end-diastolic velocity (EDV) (p < 0.02), and the ophthalmic artery (OA) PSV and EDV, were found to be significantly lower in the OSA group (p < 0.05). Conclusion: Severe OSA causes an increase in IOP and a decrease in flow velocity in the retrobulbar circulation.