伴有阻塞性睡眠呼吸暂停低通气综合征的缺血性脑血管病患者血同型半胱氨酸的变化

目的 探讨伴有阻塞性睡眠呼吸暂停低通气综合征(obstructive sleep apnea-hypopnea syndrome,OSAHS)的缺血性脑血管病患者(ischemie cerebrovascular disease,ICVD)血同型半胱氨酸(homocysteine,Hey)水平.方法 从南京脑卒中注册系统中筛选76例ICVD患者,行多导睡眠图(PSG)监测,并检测纤维蛋白原(FBG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、甘油三酯(TG)、血浆Hcy.结果 76例患者中有57例存在呼吸暂停现象,其中53例(69.7%)诊断为OSAHS;排除4例中枢性呼吸暂停患者,将72例ICVD患者根据呼吸暂停加低通气指数(AHI)值分为4组:无呼吸暂停组19例,AHI值2.38±0.96,Hcy值(8.78±2.01)μmol/L;轻度OSAHS 21例,AHI值14.14±4.37,Hcy值(12.91±3.00)μmoL/L;中度OSAHS24例,AHI值29.62±5.81,Hcy值(14.85±4.15)μmoL/L;重度OSAHS 8例,AHI值46.75±2.82,Hey值(19.30±4.82)μmoL/L.4组间Hcy值差异有统计学意义(F=40.32,P<0.01).Hey与AHI存在显著相关性(r=0.598,P<0.01).结论 在ICVD患者中,OSAHS患病率较高,且以轻中度为主;Hcy在ICVD合并OSAHS患者时具有升高趋势,且随着阻塞程度的进展而加重.

Changes in homocysteine levels in patients with ischemic cerebral disease and obstructive sleep apnea-hypopnea syndrome

Objective To investigate the relationship between obstructive sleep apnea-hypopnea syndrome(OSAHS)and plasma homocysteine(Hcy)levels in patients with ischemie cerebrovascular disease(ICVD).Methods Seventy-six patients with ICVD were monitored with polysomnography(PSG) for 7-8 hours during sleeping.The levels of fibrinogen(FBG),high density lipoprotein cholesterol(HDLC),low-density lipoprotein cholesterol(LDL-C),triglyceride(TG)and plasma Hey were assessed.Results Of the 76 ICVD patients,57 showed apnea symptom during sleeping,of which 53(69.7%)were diagnosed with OSAHS and 4 with central sleep apnea,According to the mean apnea-hypopnea index (AHI),the severity of apnea was classified as no apnea symptom(19 cases with mean AHI of 2.38±0.96 and Hey level of(8.78 ±2.01)μmol/L),mild apnea(21 cages with mean AHI of 14.14 ±4.37 and Hcy level of(12.91 ±3.00)μmol/L),moderate apnea(24 cases with mean AHI of 29.62±5.81 and Hcy level of(14.85 ±4.15)μmol/L)and severe apnea(8 cases with mean AHI of 46.75±2.82 and Hcy level of(19.30±4.82)μmol/L).The level of Hcy was statistical significant among these 4 groups(F=40.32,P<0.01)and correlated with the mean AHI(r=0.598,P<0.01).Conclusion Patients with ICVD have a high morbidity of OSAHS,mainly suffering from mild to moderate apnea;The plasma Hcy level elevates in the ICVD patients with OSAHS and is correlated with the severity of apnea.