Nature and science of sleep · 2025
Alterations on Microcirculation of Optic Nerve Head Before and After OSA Surgery.
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Lin Pei-Wen, Chiu Li-Wen, Lin Chung-Wei, Chang Chun-Tuan, Lin Hsin-Ching
Аннотация
OBJECTIVE: Obstructive sleep apnea/hypopnea syndrome (OSA) can compromise oxygenation of the optic nerve and cause glaucomatous optic neuropathy; however, there were no studies to investigate the changes of optic nerve microcirculation in patients with OSA before and after treatment. We conducted the first study to assess whether OSA surgery will change the optic nerve microcirculation in patients with OSA.
STUDY DESIGN: Prospective single-blind study.
SETTING: Tertiary medical center.
METHODS: The enrolled patients were completed for overnight polysomnography (PSG) and comprehensive ophthalmologic evaluation, including laser speckle flowgraphy (LSFG) for microcirculation of optic nerve head (ONH) before and 3 months after OSA surgery. LSFG measurements were summarized as mean blur rate in all areas (MA), in big vessel area (MV) and in tissue area (MT) of ONH.
RESULTS: Twenty-nine patients underwent upper airway surgery were included. Three months after surgery, 75.9% (22/29) patients, including 15 of 20 patients with severe OSA and 7 of 9 patients with moderate OSA had improvement in apnea/hypopnea index (AHI). The major parameters of PSG significantly improved. Regarding the LSFG parameters, MA (p = 0.023), MV (p = 0.033) and MT (p = 0.026) significantly increased 3 months after surgery. Moreover, there were significant differences in MA (p = 0.035) and MT (p = 0.045) in the AHI-improved subgroup after surgery.
CONCLUSION: The ONH microcirculation significantly improved in the AHI-improved patients with OSA 3 months after upper airway surgery. Upper airway surgery may ameliorate the ONH microcirculation in patients with OSA.
STUDY DESIGN: Prospective single-blind study.
SETTING: Tertiary medical center.
METHODS: The enrolled patients were completed for overnight polysomnography (PSG) and comprehensive ophthalmologic evaluation, including laser speckle flowgraphy (LSFG) for microcirculation of optic nerve head (ONH) before and 3 months after OSA surgery. LSFG measurements were summarized as mean blur rate in all areas (MA), in big vessel area (MV) and in tissue area (MT) of ONH.
RESULTS: Twenty-nine patients underwent upper airway surgery were included. Three months after surgery, 75.9% (22/29) patients, including 15 of 20 patients with severe OSA and 7 of 9 patients with moderate OSA had improvement in apnea/hypopnea index (AHI). The major parameters of PSG significantly improved. Regarding the LSFG parameters, MA (p = 0.023), MV (p = 0.033) and MT (p = 0.026) significantly increased 3 months after surgery. Moreover, there were significant differences in MA (p = 0.035) and MT (p = 0.045) in the AHI-improved subgroup after surgery.
CONCLUSION: The ONH microcirculation significantly improved in the AHI-improved patients with OSA 3 months after upper airway surgery. Upper airway surgery may ameliorate the ONH microcirculation in patients with OSA.