机构地区:[1]长春市中心医院ICU,130051 [2]长春市中心医院神经外科,130051
出 处:《中国医药》2014年第9期1309-1313,共5页China Medicine
基 金:吉林省科技发展计划(200905121)
摘 要:目的:研究早期轻度过度通气对急性颅内压升高患者的影响。方法因重度颅脑疾病导致的急性高颅压、需呼吸机辅助通气的患者54例,根据过度通气起始时间分为3组:A组(20例)正常机械通气[35 mmHg≤动脉血二氧化碳分压(PaCO2)≤45 mmHg](1 mmHg=0.133 kPa);B组(17例)带机后1 h即开始轻度过度通气(30 mmHg<PaCO2<35 mmHg);C组(17例)带机后3 h即开始轻度过度通气(30 mmHg<PaCO2<35 mmHg)。3组均予系统脱水、营养支持等一般基础治疗。监测并比较过度通气后第0、1、2、4小时的颅内压、PaCO2、脑血流、脑氧摄取指数( CEO2)、动静脉血氧差值( Ca-jvO2)及干预后1周的脑电双频指数( BIS)、格拉斯哥昏迷量表( GCS)评分、病死率。结果 B组通气1 h的颅内压为(16.2±1.8) mmHg,脑血流为(52.0±1.6) ml/(100 g· min),CEO2为(72.7±0.8)%,Ca-jvO2为(58.1±0.6)%;B组干预后1周BIS为(51.6±12.3),GCS为(9.4±2.4)分,病死率为11.8%(2/17)。C组通气1 h的颅内压为(25.5±1.0)mmHg,脑血流为(60.5±3.3)ml/(100 g· min),CEO2为(68.2±0.5)%,Ca-jvO2为(54.0±0.5)%;C组干预后1周BIS为(46.5±6.5),GCS为(8.2±1.5)分,病死率为35.3%(6/17)。维持PaO2在150~200 mmHg,轻度过度通气可降低颅内压,轻度过度通气1 h的脑血流、CEO2、Ca-jvO2最佳,超过2 h存在氧合失衡,干预1周后BIS和GCS评分增高、病死率低;B组较C组颅内压、脑血流、CEO2、Ca-jvO2更佳,干预1周后BIS 和GCS 评分增高、病死率低,差异有统计学意义。结论重度颅脑疾病出现急性颅内压升高需要机械通气的患者于带机后1h开始应用轻度过度通气,维持PaO2150~200 mmHg、PaCO230~35 mmHg,持续1 h,可明显降低颅内压,脑血流、CEO2及Ca-jvO2更佳,1周后BIS、GCS评分增高、病死�Objective To research the influence of early mild hyperventilation on acute intracranial hy-pertention.Methods Totally 54 patients with acute high intracranial pressure caused by s traumatic brain injury or cerebral hemorrhage were enrolled .All patients required assisted ventilation starting mild hyperventilation at dif-ferent time.According to the different starting times of hyperventilation , the patients were divided into 3 groups. Group A was the control group (20) with normal ventilation [35 mmHg≤partial pressure of carbon dioxide in ar-terial (PaCO2) ≤45 mmHg].Group B (17) started mild hyperventilation 1 hour after ventilation (30 mmHg〈PaCO2 〈35 mmHg);Group C (17) started mild hyperventilation 3 hours after ventilation (30 mmHg〈PaCO2 〈35 mmHg).All patients underwent basic treatment.Intracranial pressure (ICP), PaCO2, cerebral blood flow (CBF), cerebral extraction of oxygen (CEO2) and different oxygen contents between arteries and veins (Ca-jvO2) at the beginning, 1, 2 and 4 hours after intervention.Bispectral index (BIS), Glasgow coma scale (GCS) scores and mortality rate after intervention were monitored and compared .Results ICP was reduced by mild hyperventi-lation, while PaO2 was maintained between 150 and 200 mmHg.Oxygenation imbalance occurred if mild hyperven-tilation lasted for more than 2 hours.ICP[(16.2 ±1.8)mmHg vs (25.5 ±1.0)mmHg], CEO2[(72.7 ±0.8)%vs (68.2 ±0.5)%], CBF[(52.0 ±1.6)ml/(100 g· min) vs (60.5 ±3.3)ml/(100 g· min)] and Ca-jvO2 [(58.1 ±0.6)%vs (54.0 ±0.5)%] of group B were better than those of group C .BIS[(51.6 ±12.3) vs (46.5 ±6.5)], GCS[(9.4 ±2.4) scores vs (8.2 ±1.5) scores] scores of group B were higher than those of group C;the mortality rate of group B was lower than that of group C .All differences had statistical significance . Conclusions Patients with severe craniocerebral disease, after suffering acute high cranial pressure, need mechanical ven
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...