Bülent Çekiç1, Ömer Tarık Selçuk2, İclal Erdem Toslak3, Üstün Osma2, Hülya Eyigör2, Muhammed Kazım Erol4. 1. Department of Radiology, Antalya Education and Training Hospital, Medical Sciences University, 070030, Antalya, Turkey. bulend71@yahoo.com. 2. Department of Otorhinolaryngology, Antalya Training and Research Hospital, Antalya, Turkey. 3. Department of Radiology, Antalya Education and Training Hospital, Medical Sciences University, 070030, Antalya, Turkey. 4. Department of Ophthalmology, Antalya Training and Research Hospital, Antalya, Turkey.
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.
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.
Entities:
Keywords:
Color Doppler ultrasound; Obstructive sleep apnea; Retrobulbar blood flow
Authors: Pia Holland Gjørup; Laima Sadauskiene; Jost Wessels; Ole Nyvad; B Strunge; Erling Bjerregaard Pedersen Journal: Am J Hypertens Date: 2007-01 Impact factor: 2.689