Sleep & breathing = Schlaf & Atmung · 2015
Erythrocyte sedimentation rate may help predict severity of obstructive sleep apnea.
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Lee Woo Hyun, Wee Jee Hye, Rhee Chae-Seo, Yoon In-Young, Kim Jeong-Whun
Аннотация
PURPOSE: Previous studies have shown a relationship between obstructive sleep apnea (OSA) and erythrocyte sedimentation rate (ESR), a representative marker for inflammation. We aimed to elucidate the possible association between elevated ESR and OSA severity.
METHODS: A total of 341 patients who visited a sleep center were retrospectively enrolled. Subjects underwent physical examination, overnight polysomnography (PSG), and blood sampling for ESR and high-sensitivity C-reactive protein (hs-CRP). We compared the ESR and hs-CRP level to OSA severity and measured their correlation with other PSG parameters.
RESULTS: The ESR was significantly higher in patients with severe OSA (apnea-hypopnea index (AHI) ≥ 30) than those with simple snoring (AHI < 5; P = 0.016), mild OSA (5 ≤ AHI < 15; P = 0.010), and moderate OSA (15 ≤ AHI < 30; P = 0.042). Similarly, the hs-CRP level in patients with severe OSA was significantly higher than that in patients with simple snoring (P = 0.006) and mild OSA (P = 0.013). Multivariate analysis also showed that elevated ESR was associated with moderate and severe OSA (adjusted OR = 2.231 (P = 0.048) and 2.606 (P = 0.002), respectively) after adjusting for sex, age, body mass index, smoking, hypertension, diabetes mellitus, and hyperlipidemia. However, elevated hs-CRP was not associated with the OSA severity.
CONCLUSIONS: ESR more closely correlated with PSG parameters recorded during sleep hypoxic episodes than hs-CRP. Moreover, the ESR may be useful to predict the OSA severity because moderate and severe OSA were independently associated with an elevated ESR.
METHODS: A total of 341 patients who visited a sleep center were retrospectively enrolled. Subjects underwent physical examination, overnight polysomnography (PSG), and blood sampling for ESR and high-sensitivity C-reactive protein (hs-CRP). We compared the ESR and hs-CRP level to OSA severity and measured their correlation with other PSG parameters.
RESULTS: The ESR was significantly higher in patients with severe OSA (apnea-hypopnea index (AHI) ≥ 30) than those with simple snoring (AHI < 5; P = 0.016), mild OSA (5 ≤ AHI < 15; P = 0.010), and moderate OSA (15 ≤ AHI < 30; P = 0.042). Similarly, the hs-CRP level in patients with severe OSA was significantly higher than that in patients with simple snoring (P = 0.006) and mild OSA (P = 0.013). Multivariate analysis also showed that elevated ESR was associated with moderate and severe OSA (adjusted OR = 2.231 (P = 0.048) and 2.606 (P = 0.002), respectively) after adjusting for sex, age, body mass index, smoking, hypertension, diabetes mellitus, and hyperlipidemia. However, elevated hs-CRP was not associated with the OSA severity.
CONCLUSIONS: ESR more closely correlated with PSG parameters recorded during sleep hypoxic episodes than hs-CRP. Moreover, the ESR may be useful to predict the OSA severity because moderate and severe OSA were independently associated with an elevated ESR.