人工寒潮对颈动脉粥样硬化性大鼠血压的影响

目的 探讨人工寒潮对颈动脉粥样硬化性大鼠血压的影响以及尼莫地平的干预作用.方法 将SD大鼠按随机数字表法分为正常组、假手术组和颈动脉粥样硬化组,其中颈动脉粥样硬化组再分为非寒潮组、寒潮组和干预组3个亚组,除非寒潮组外其他各组均经历人工寒潮3d,寒潮组并给予等剂量生理盐水灌胃3 d,干预组并给予尼莫地平干预,分别测量各组经历寒潮前后的血压.结果 (1)寒潮前假手术组及颈动脉粥样硬化组血压明显高于正常组,比较差异有统计学意义(P＜0.05).(2)寒潮后正常组、假手术组及寒潮组的血压较寒潮前明显增高,干预组血压较寒潮前明显下降,比较差异均有统计学意义(P＜0.05).(3)正常组、假手术组及寒潮组之间寒潮前后血压的差值比较无统计学差异.(4)与寒潮组相比,干预组的血压差值明显降低,比较差异有统计学意义(P＜0.05).结论 人工寒潮可以使正常大鼠及颈动脉粥样硬化性大鼠血压升高,尼莫地平可以预防寒潮导致的血压升高.

Abstract：

Objective To study the effect of artificial cold exposure (ACE) on the level of blood pressure in carotid atherosclerotic rats, and the prophylactic effect of nimodipine on it. Methods One hundred and thirty SD rats were randomly divided into normal group (n=10), sham-operated group (n=10), and carotid atherosclerotic (CAS) group (n=110). High-fat diet was given to the sham-operated group and CAS group; normal diet was given to the control group. Then, 105 alive rats in the CAS group were further sub-divided into non-ACE group (n=40), ACE group (n=38) and nimodipine treatment group (n=37). All the groups were subjected to ACE for 3 d except non-ACE group, and kept at 22 °C throughout the experiment. During the ACE, an intragastric administration of nimodipine was given to the nimodipine treatment group. The changes of the blood pressure before and after ACE were analyzed and compared. Results The level of pre-ACE blood pressure in the sham-operated group and CAS group was significantly higher than that in the normal group (P＜0.05). The level of post-ACE blood pressure was significantly increased in the normal group, sham-operated group and ACE group, and significantly decreased in the nimodipine treatment group as compared with the level of pre-ACE one in these groups (P＜0.05). No significant differences were noted between the levels of pre-ACE and post-ACE blood pressure in the normal group, sham-operated group and ACE group (P＞0.05). The level of post-ACE blood pressure in rats treated with nimodipine was obviously decreased as compared with that in the ACE group (P＜0.05). Conclusion ACE could increase the level of blood pressure in carotid atherosclerotic rats and this effect might be lessoned by the administration of nimodipine.     

大骨瓣减压对不同年龄重型颅脑创伤患者脑血流量及脑代谢的影响

目的 探讨大骨瓣减压对不同年龄重型颅脑创伤患者脑血流量及脑代谢的影响.方法 将71例重型颅脑创伤患者分为＜30岁组、30～50岁组和＞50岁组.每组又分为治疗组和对照组,大骨瓣减压手术前后行桡动脉和颈内静脉血气分析及血糖、血乳酸、血红蛋白监测,计算动脉-颈内静脉血糖差、颈内静脉-动脉乳酸差以及脑氧摄取率,TCD测定脑血流量.结果 术后第1天开始,≤50岁治疗组患者的脑血流量和脑氧摄取率均明显大于对照组;＞50岁治疗组患者的脑血流量明显高于对照组,脑氧摄取率明显低于对照组(P＜0.05).术后第3天开始,≤50岁治疗组患者的动脉-颈内静脉血糖差明显高于对照组,颈内静脉-动脉乳酸差明显低于对照组;＞50岁治疗组患者的动脉-颈内静脉血糖差明显低于对照组(P＜0.05),颈内静脉-动脉乳酸差明显高于对照组(P＜0.05).结论 大骨瓣减压能增加50岁以下重型颅脑创伤患者的脑血流量和脑氧代谢,能增加50岁以上患者的脑血流量并降低脑氧代谢.

Abstract：

Objective To explore the effects of decompressive craniectomy on cerebral blood flow volume and brain metabolism in different aged patients with severe traumatic brain injury.Method 71 cases were divided into three groups according age:group A( ＜30 years) ,group B(30 ～50 years) ,group C ( ＞ 50 years).Each group was divided into decompressive craniectomy ( DC ) treatment group and control group.Monitor dynamically blood gas analysis, glucose, lactic acid, hemoglobin in radial artery and internal jugular venous bulb, accounting the cerebral oxygen extraction ( CEO2 ) and the D - values of glucose and lactic acid respectively between radial artery and internal jugular venous bulb.Color doppler ultrasonography was used to determine the cerebral blood flow volume(CBFV).Results From the 1 st to 7th day, the CBFV and CEO2 of DC group were significantly greater than control group in group A and group B.The CBFV was significantly greater than control group while the CEO2 was lower than control group in group C ( P ＜ 0.05 ).From third day, the D - values of glucose of DC group was significantly higher than control group while the D - values of lactic acid was lower than control group in group A and group B, the D - values of glucose of DC group was significantly lower than control group while the D - values of lactic acid was higher than control group in group C( P ＜ 0.05 ).Conclusions Decompression craniectomy can increase the CBFV and brain oxygen metabolism in STBI patients before age 50 and increase the CBFV in patients after age 50 whereas decrease the brain oxygeon metabolism.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

重型颅脑损伤患者亚低温治疗的临床研究

Objective To compare the prognoses of patients with severe brain injury receiving mild hypothermia and normothermia interventions and evaluate the brain protective effect of mild hypothermia. Methods Seventy-six patients with severe head injury (Glaseow Coma Score≤8) were divided into mild hypothermia group (36 cases) and normothermia group (40 cases). The patients in the normothermia group were managed with measures for reducing the intracranial pressure and controlling the hemorrhage and gastric acid, with also administration of neurotrophic treatment and nutritional support. In addition to these conventional interventions, the patients in mild hypothermia group received mild hypothermia treatment administered using a water blanket to reduce the core body temperature and brain temperature to 32-34℃, which was maintained for 3-14 days as needed. Results The patients receiving mild hypothermia therapy had significantly improved prognosis in comparison with those in normothermia group (P<0.05). Conclusion Mild hypothermia treatment has brain protective effect and improves the prognosis of patients with severe brain injury.     

重型颅脑损伤患者亚低温治疗的临床研究

Objective To compare the prognoses of patients with severe brain injury receiving mild hypothermia and normothermia interventions and evaluate the brain protective effect of mild hypothermia. Methods Seventy-six patients with severe head injury (Glaseow Coma Score≤8) were divided into mild hypothermia group (36 cases) and normothermia group (40 cases). The patients in the normothermia group were managed with measures for reducing the intracranial pressure and controlling the hemorrhage and gastric acid, with also administration of neurotrophic treatment and nutritional support. In addition to these conventional interventions, the patients in mild hypothermia group received mild hypothermia treatment administered using a water blanket to reduce the core body temperature and brain temperature to 32-34℃, which was maintained for 3-14 days as needed. Results The patients receiving mild hypothermia therapy had significantly improved prognosis in comparison with those in normothermia group (P<0.05). Conclusion Mild hypothermia treatment has brain protective effect and improves the prognosis of patients with severe brain injury.     

Reduced cerebral blood flow velocity and impaired cerebral autoregulation in patients with Fabry disease

Abstract. In Fabry disease, there is glycosphingolipid storage in vascular endothelial and smooth muscle cells and neurons of the autonomic nervous system. Vascular or autonomic dysfunction is likely to compromise cerebral blood flow velocities and cerebral autoregulation. This study was performed to evaluate cerebral blood flow velocities and cerebral autoregulation in Fabry patients. In 22 Fabry patients and 24 controls, we monitored resting respiratory frequency, electrocardiographic RR-intervals, blood pressure, and cerebral blood flow velocities (CBFV) in the middle cerebral artery using transcranial Doppler sonography. We assessed the Resistance Index, Pulsatility Index, Cerebrovascular Resistance, and spectral powers of oscillations in RR-intervals, mean blood pressure and mean CBFV in the high (0.15–0.5 Hz) and sympathetically mediated low frequency (0.04–0.15 Hz) ranges using autoregressive analysis. Cerebral autoregulation was determined from the transfer function gain between the low frequency oscillations in mean blood pressure and mean CBFV. Mean CBFV (P < 0.05) and the powers of mean blood pressure (P < 0.01) and mean CBFV oscillations (P < 0.05) in the low frequency range were lower,while RR-intervals, Resistance Index (P < 0.01), Pulsatility Index, Cerebrovascular Resistance (P < 0.05), and the transfer function gain between low frequency oscillations in mean blood pressure and mean CBFV (P < 0.01) were higher in patients than in controls. Mean blood pressure, respiratory frequency and spectral powers of RR-intervals did not differ between the two groups (P > 0.05). The decrease of CBFV might result from downstream stenoses of resistance vessels and dilatation of the insonated segment of the middle cerebral artery due to reduced sympathetic tone and vessel wall pathology with decreased elasticity. The augmented gain between blood pressure and CBFV oscillations indicates inability to dampen blood pressure fluctuations by cerebral autoregulation. Both, reduced CBFV and impaired cerebral autoregulation, are likely to be involved in the increased risk of stroke in patients with Fabry disease.     

Cerebral autoregulation in patients with obstructive sleep apnea syndrome during wakefulness

Background and purpose:  Obstructive sleep apnea syndrome (OSAS) is an independent risk factor for stroke. Impairment of cerebral autoregulation may play a potential role in the pre-disposition to stroke of OSAS patients. In this study, we aimed to assess dynamic cerebral autoregulation (DCA) during wakefulness in OSAS patients and a group of matched controls.
Methods:  Patients and controls were examined in the morning after an overnight complete polysomnography. Mean cerebral blood flow velocity (CBFV) in the middle cerebral artery and mean arterial blood pressure (ABP) were continuously recorded using transcranial Doppler and Finapres. DCA was assessed using the Mx autoregulatory index. Mx is a moving correlation coefficient between mean CBFV and mean ABP. More positive value of Mx indicates worse autoregulation.
Results:  Eleven OSAS patients (mean age ± SD; 52.6 ± 7.9) and 9 controls (mean age ± SD; 49.1 ± 5.3) were enrolled. The mean apnea–hypopnea index (AHI) in the OSAS group was of 22.7 ± 11.6. No significant difference was found between the two groups as for age, body mass index, mean ABP and endtidal CO₂ pressure. Cerebral autoregulation was impaired in OSAS patients compared with controls (Mx index: 0.414 ± 0.138 vs. 0.233 ± 0.100; P  = 0.009). The severity of autoregulation impairment correlated to the severity of the sleep respiratory disturbance measured by the AHI ( P  = 0.003).
Conclusion:  Cerebral autoregulation is impaired in patients with OSAS during wakefulness. Impairment of cerebral autoregulation is correlated with the severity of OSAS.     

Transcranial Doppler sonography during head up tilt suggests preserved central sympathetic activation in familial dysautonomia

OBJECTIVE: Cerebral autoregulation was assessed by transcranial Doppler sonography in 10 patients with familial dysautonomia and 10 age matched controls. METHODS: Blood pressure, heart rate, and middle cerebral artery blood flow velocity (CBFV) were simultaneously recorded when supine and during 180 seconds of head up tilt. Cerebrovascular resistance (CVR) was calculated from CBFV and mean blood pressure was adjusted to brain level. RESULTS: In the controls, mean blood pressure remained stable during tilt, but heart rate increased significantly. In the patients with familial dysautonomia, mean (SD) blood pressure decreased by 15.0 (10.8)% (p < 0.05). Heart rate remained unchanged. In controls, systolic and mean CBFV decreased by 9.1 (4.7)% and 9.4 (7.0)%, respectively, while diastolic CBFV remained stable. In the patients, diastolic and mean CBFV decreased continuously by 32.1 (13.9)% and by 14.8 (31.4)%. Supine CVR was 28% higher in patients than in controls and decreased significantly less during head up tilt. CONCLUSIONS: Tilt evokes orthostatic hypotension without compensatory tachycardia in patients with familial dysautonomia owing to decreased peripheral sympathetic innervation. High supine CVR values and relatively preserved CVR during tilt suggest preserved central sympathetic activation in familial dysautonomia, assuring adaptation of cerebrovascular autoregulation to chronic supine hypertension and orthostatic hypotension.     

老年人阻塞性睡眠呼吸暂停综合征与脑白质疏松的关系

目的 探讨老年人阻塞性睡眠呼吸暂停综合征(OSAHS)与脑白质疏松(LA)之间的关系.方法 对应用多导睡眠呼吸监测诊断的169例OSAHS患者进行头颅磁共振检查,评估LA的发生率及其程度,探讨睡眠呼吸参数与LA程度的关系.结果 169例OSAHS患者中无LA24例(14.20%);LA 145例(85.80%),其中轻度LA 27例(15.98%),中度LA 65例(38.46%),重度LA53例(31.36%).对不同程度LA患者年龄、体重指数及睡眠呼吸参数进行比较发现,年龄、睡眠呼吸紊乱指数(AHI)、平均血氧饱和度(MSaO2)、SaO2＜90%时间及氧减指数各组间差异有统计学意义(P＜0.05).经Logistic回归分析,年龄及氧减指数与LA密切相关.结论 随着年龄的增加,氧减指数逐渐增大,LA发生率逐渐增加,程度逐步加重.对OSAHS患者采取适当的干预措施有利于改善LA引起的认知功能障碍等症状.     

阻塞性睡眠呼吸暂停低通气综合征与后循环短暂性脑缺血发作的相关性临床研究

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)与后循环短暂性脑缺血发作(TIA)的相关性及其发病机制。方法选取我院住院治疗的30例后循环TIA患者作为病例组;34例非后循环TIA患者作为对照组。收集所有研究对象的基本临床资料及多导睡眠检测结果。回顾性分析不同程度OSAHS在两组中的分布特点。采用二元Logistic回归分析法分析后循环TIA与其危险因素及OSAHS之间的相关性;采用Spearman分析法分析OSAHS与后循环TIA危险因素之间的关系。结果病例组OSAHS患者例数为24例,对照组为18例,差异具有统计学意义(P0.05);病例组重度OSAHS例数11例,对照组2例,差异具有统计学意义(P0.05);重度OSAHS与后循环TIA之间有相关性。糖尿病、低密度脂蛋白(LDL)、甘油三酯、BMI、同型半胱氨酸(Hcy)和吸烟为后循环TIA的独立危险因素;而OSAHS不是后循环TIA的独立危险因素。OSAHS与吸烟、高血压、BMI和Hcy等危险因素有显著相关性。结论 OSAHS是后循环TIA发病的危险因素之一,但不是独立危险因素。OSAHS通过与吸烟、高血压、BMI和同型半胱氨酸等危险因素相互作用,促进后循环TIA的发病。     

急性缺血性卒中患者阻塞性睡眠呼吸暂停低通气综合征与相关血液生化标志物的临床研究

目的 探讨急性缺血性卒中患者阻塞性睡眠呼吸暂停低通气综合征（obstructive sleep apn ea hypopnea syndrome,OSAHS）与相关血液生化标志物的关系。 方法 纳入2018年1月-2019年12月郑州市第三人民医院及郑州市第二人民医院收治的急性缺血性 卒中患者,根据多导睡眠图检测结果分为缺血性卒中伴OSAHS组和单纯缺血性卒中组,对比两组间一 般资料、hs-CRP、D-二聚体（D-di mer,D-D）及纤维蛋白原降解产物（fibrinogen degradation products,FDP） 的差异。根据OSAHS严重程度,分为轻度OSAHS组,中度OSAHS组,重度OSAHS组,并比较3组患者hs-CRP、 D-D及FDP的差异。 结果 共纳入98例患者,其中缺血性卒中伴OSAHS组59例,单纯缺血性卒中组39例;缺血性卒 中伴OSAHS组中轻度OSAHS 19例,中度OSAHS 16例,重度OSAHS 24例。缺血性卒中伴OSAHS组的 BM（I 26.33±4.16 kg/m2 vs 23.93±3.83 kg/m2,P =0.048）、hs-CRP（11.95±3.11 mg/L vs 6.13±1.69 mg/L,P ＜0.001）、D -D [0.78（0.38～1.21）m g/L vs 0.25（0.14～0.30）m g/L,P＜0.001]、FDP （3.36±1.39 μg/mL vs 2.30±0.88 μg/mL,P =0.005）均高于单纯缺血性卒中组。轻度OSAHS组 （7.92±2.15 mg/L,P＜0.001）和中度OSAHS组（11.47±2.54 mg/L,P＝0.005）hs-CRP水平均低于重度 OSAHS组（15.31±3.16 mg/L）,轻度OSAHS组hs-CRP水平低于中度OSAHS组（P＝0.012）。轻度OSAHS 组D-D水平低于重度OSAHS组[0.42（0.23～0.98）mg/L vs 0.98（0.93～1.85）mg/L,P＝0.023],轻度 OSAHS组FDP水平低于重度OSAHS组（2.74±0.93 μg/mL vs 4.19±1.55 μg/mL,P =0.012）。 结论 与不伴OSAHS的急性缺血性卒中患者相比,伴有OSAHS的急性缺血性卒中患者血清hs-CRP、 D-D、FDP水平更高。     

妊娠期高血压疾病与新生儿缺氧缺血性脑病的相关性研究

目的分析妊娠期高血压疾病与新生儿缺氧缺血性脑病的相关性。方法选取我院2015-11—2016-12收治的46例缺氧缺血性脑病新生儿为观察组,纳入同期46例健康足月胎龄儿为对照组,比较2组新生儿母亲重度子痫前期、子痫发作率及血压情况,并将观察组患儿根据影像学检查结果分为重度组、中度组和轻度组,比较3组患儿母亲妊娠期血压水平、重度子痫前期及子痫发作率。结果观察组母亲重度子痫前期及子痫发作率均高于对照组,差异有统计学意义(P0.05);2组舒张压比较无明显差异(P0.05),观察组平均收缩压(SBP)高于对照组,差异有统计学意义(P0.05);与中度组、轻度组比较,重度组母亲妊娠期血压水平、重度子痫前期及子痫发作率较高,且中度组重度子痫前期及子痫发作率(29.41%、11.76%)高于轻度组(15.00%、0),差异有统计学意义(P0.05),但中度组、轻度组母亲妊娠期血压比较无明显差异(P0.05)。结论妊娠期高血压是导致新生儿缺氧缺血性脑病的危险因素,可增加其发病率,及时发现妊娠期高血压,并给予相应治疗与血压控制,对预防新生儿缺氧缺血性脑病和提高预后具有重要意义。     

急性脑梗死患者血液流变学及凝血功能的临床意义

目的探讨急性脑梗死患者血液流变学和凝血功能的变化及其临床意义。方法选择75例急性脑梗死为观察组,其中轻度、中度、重度各25例,选择同期75例健康体检者为对照组,比较2组血液流变学和凝血功能,记录观察组不同程度脑梗死患者的血液流变学和凝血功能。结果观察组全血高切黏度、全血低切黏度、血浆黏度和红细胞比积显著高于对照组(P0.05)。观察组血浆纤维蛋白原(FIB)明显高于对照组(P0.05),2组活化部分凝血活酶时间(APTT)和血浆凝血酶原时间(PT)比较差异无统计学意义(P0.05)。重度、中度和轻度患者的全血高切黏度、全血低切黏度、血浆黏度和红细胞比积比较差异有统计学意义(P0.05);重度、中度和轻度患者的FIB比较差异有统计学意义(P0.05)。结论急性脑梗死患者的血液流变学和凝血功能存在异常,且与病情严重程度成正比,监测其动态变化可为临床治疗提供参考价值。     

老年卒中后抑郁患者血清细胞因子的研究

目的 探讨老年卒中后抑郁患者(PSD)血清细胞因子白细胞介素-1β(II-1β)、白细胞介素-6(IL-6)以及肿瘤坏死因子(TNF-α)的水平.方法 采用酶联免疫吸附法检测PSD组(36例)及卒中后无抑郁患者(对照组;32例)的血清IL-1β、IL-6及TNF-α水平,并以汉密尔顿抑郁量表(HAMD)评分将PSD组分为轻度组(8～16分;9例)、中度组(17～23分;17例)及重度组(≥24分;10例),比较各组血清IL-1β、IL-6及TNF-α水平的差异.结果 (1)PSD组血清IL-1β[(35.2±4.2)ng/L]、IL-6[(11.3±4.3)ng/L]及TNF-α[(32.4±6.9)ng/L]水平,均高于对照组[分别为(18.1±3.3)ng/L、(6.1±1.9)ng/L及(21.6±4.8)ng/L;P＜0.01];(2)卒中后重度抑郁组血清IL-1β[(41.8±3.2)ng/L]、IL-6[(17.5±5.7)ng/L]及,TNF-α[(38.8±5.8)ng/L]水平,均高于轻度抑郁组[分别为(29.1±2.3)ng/L、(6.6 ±1.7)ng/L及(25.9 ±3.3)ng/L;P＜0.05]、中度抑郁组[分别为(34.6±2.6)ng/L、(10.2 ±3.5)ng/L及(32.1±3.6)ng/L;P＜0.05],中度抑郁组亦高于轻度抑郁组(P＜0.05);(3)血清IL-1β(r=0.637)、IL-6(r=0.698)、TNF-α(r=0.722)水平均与抑郁的严重程度显著相关(P＜0.01).结论 IL-1β、IL-6及TNF-α可能在卒中后抑郁的发生发展中起重要作用.