首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 64 毫秒
1.
重型颅脑伤病人脑氧和脑温的监护经验(附116例报告)   总被引:2,自引:0,他引:2  
目的研究亚低温治疗重型颅脑损伤病人脑组织氧分压(PbtO2)和脑温的变化规律及其临床意义。方法将重型颅脑损伤病人116例分为亚低温组和常温对照组各58例,对病人监测PbtO2、脑温,平均86h。结果24hPbtO2均值(13.7 ±4.94)mmHg,较正常值(16~40mmHg)低;亚低温组比对照组PbtO2恢复到均值的时间缩短(10±4.15)h(P <0.05);亚低温组存活率(60.4%)高于对照组(46.6%);复温后PbtO2随脑温升高而增加。手术组脑温与肛温的差距低于正常者占66.7%,非手术组脑温与肛温的差距高于正常者占52.9%,两组有显著性差异。结论亚低温治疗能提高严重脑伤病人的生存率。PbtO2、脑温直接监测技术安全可靠,对于判定病情和指导治疗有重要意义。  相似文献   

2.
亚低温治疗重型颅脑损伤中脑组织氧分压的临床意义   总被引:1,自引:1,他引:0  
目的观察亚低温治疗重型颅脑损伤过程中患者颅内压及脑组织氧分压的变化及临床意义。方法将80例急性重型颅脑损伤患者,随机分为亚低温治疗组(40例)和对照组(40例)。亚低温组入院后或术后立即给予亚低温治疗,保持肛温在32~34℃,持续24h~5d;对照组给予常规治疗。两组均观察颅内压(ICP)和脑组织氧分压(PbtO2)变化。结果亚低温组治疗后,ICP明显下降,PbtO2逐渐升高,与对照组相比有显著性差异。结论亚低温治疗能降低脑外伤后增高的ICP,提高PbtO2;伤后24h内持续PbtO2<5mmHg预示患者预后不良。  相似文献   

3.
目的 研究亚低温治疗状态下重型颅脑创伤( sTBI)患者伤后早期脑组织氧分压(PbtO2)的动态变化及临床意义.方法 38例sTBI患者进行亚低温治疗,连续监测PbtO2、颈静脉血氧饱和度(SjvO2)、颅内压(ICP)、和脑灌注压(CPP)等指标,对监测结果以及PbtO2和其他指标相关性进行分析,并记录患者伤后3个月的格拉斯哥预后评分.结果 在亚低温治疗初期,患者PbtO2、SjvO2和CPP明显上升,ICP明显下降,而治疗36 h和48 h后PbtO2及SjvO2无明显变化.亚低温治疗后ICP较治疗前明显下降,低PbtO2情况明显改善,ICP和PbtO2之间呈负相关;PbtO2及SjvO2水平明显上升,PbtO2与SjvO2呈直线正相关;PbtO2与CPP呈直线正相关.监测过程中,在SjvO2和CPP水平正常的情况下,仍有较大比例的患者出现低PbtO2情况.治疗过程中没有出现过低PbtO2水平的患者预后良好.结论 PbtO2是监测sTBI患者局部脑组织氧合的一项重要指标,具有很高敏感性,对于指导治疗和判断预后具有重要意义,而亚低温能够明显改善PbtO2降低的情况.  相似文献   

4.
亚低温对急性重型颅脑损伤病人治疗机理及临床疗效研究   总被引:75,自引:1,他引:74  
目的研究亚低温对急性重型颅脑损伤病人的治疗机理及临床效果.方法164例病人,随机分为亚低温治疗组和对照组.亚低温治疗组82例,均于伤后24小时内行亚低温治疗,直肠温度(RT)控制在32.0℃~35.0℃;脑温为32.5℃~35.0℃,持续1~7天,平均60.2±28.0小时.同时监测病人的生命体征、颅内压(ICP)、血糖、血乳酸、血气、血电解质以及脑组织氧分压(PbrO2)和脑组织温度(BT)、脑微循环血流(LDF血流值)和颈静脉血氧饱和度(SjvO2).对照组82例,直肠温度控制在36.5℃~37.0℃,其他治疗同亚低温组.两组病人均于伤后3个月时根据GOS评估法判定疗效.结果与对照组相比,亚低温治疗组病人伤后早期的高ICP、高血糖、高乳酸血症分别显著下降(P<0.05);严重的低PbrO2迅速上升并维持在正常水平;脑血供得到改善;生命体征、血气及血电解质无显著差异;无严重并发症;死亡率降低,恢复良好率提高,预后显著改善.结论亚低温具有肯定的脑保护作用,临床上用于治疗急性重型颅脑损伤病人,安全有效,可降低死亡率,提高生存质量,无严重并发症.直接监测PbrO2、BT、LDF血流值和SjvO2,对亚低温治疗更有指导意义.  相似文献   

5.
目的探讨Neurotrend-7脑组织氧代谢监测仪在神经外科的应用价值.方法对20例在全麻下行开颅术的患者术中持续进行脑组织氧代谢监测,观察12例颅脑损伤患者在血肿清除前后和8例动脉瘤夹闭术中临时阻断载瘤动脉时脑组织氧分压(PbtO2)、脑组织二氧化碳分压(PbtCO2)、脑组织pH值(pHbt)的变化.结果①12例颅脑损伤患者在血肿清除后,PbtO2、pHbt分别从(16±7)mmHg、6.99±0.12增加到(28±6) mmHg、7.11±0.09(P< 0.05),PbtCO2 从(59±6)mmHg下降到(46±5) mmHg(P< 0.05);②载瘤动脉临时阻断后,PbtO2、pHbt分别从(24±6)mmHg、7.12±0.05下降到(13±4) mmHg、7.04±0.06(P<0.05),PbtCO2从(45±6) mmHg 升高到(56±4)mmHg(P<0.05).结论脑组织氧代谢监测是一种安全、可靠的监测手段,能直接动态反映脑组织的病理生理变化,及时发现脑组织缺血缺氧,以指导治疗.  相似文献   

6.
目的 分析亚低温治疗状态下对重型颅脑损伤(sTBI)患者进行脑多参数监测的结果,评估常规降颅压手段的临床意义.方法 42例sTBI患者(GCS<8分)进行亚低温治疗.对42例患者随机分组,对其进行颅内压(ICP)、脑灌注压(CPP)、脑组织氧分压(PbtO2)和颈静脉血氧饱和度(SjvO2)等指标连续监测并进行比较分析.结果 (1)42例患者在亚低温治疗后CPP、PbtO2和SjvO2水平明显上升,ICP水平明显下降.(2)亚低温状态下,以两种剂量(25 g及50 g)甘露醇对ICP> 20 mm Hg者进行脱水治疗.治疗30 min后,两组患者ICP均有显著降低,90 min后,25 g组ICP反弹明显,而50 g组ICP仍稳定在较低水平.(3)亚低温状态下,随着过度换气程度的不断增加,ICP降低的程度显著增加,但出现低PbtO2的比率也随之增高.(4)16例行去骨瓣减压术sTBI患者术后ICP明显下降,CPP、PbtO2及SjvO2均有不同程度增高.结论 亚低温状态下,对于颅脑创伤后ICP增高的处理,可供选择手段较多,在使用过程中,密切观察生命体征变化的同时,给予脑多参数监测,十分必要.  相似文献   

7.
亚低温治疗急性重型颅脑损伤的临床疗效   总被引:149,自引:0,他引:149  
目的 研究亚低温对急性重型颅脑损伤病人的治疗作用及临床效果。方法 共 87例病人 ,随机分为亚低温治疗组和对照组。亚低温治疗组 43例 ,均于伤后 2 4小时内行亚低温治疗 ,直肠温度 (RT)控制在 31 5~ 34 9℃ ,脑温为 32 0~ 35 0℃ ,持续 1~ 7天 ,平均 5 7 7± 2 8 4小时。同时监测病人的生命体征、颅内压 (ICP)、血糖、血乳酸、血气、血电解质以及脑组织氧分压 (PbrO2 )和脑组织温度 (BT)。对照组  44例 ,直肠温度控制在 36 5~ 37 5℃ ,其他治疗同亚低温组。两组病人均于伤后 3个月时根据GOS评估法判定疗效。结果  与对照组相比 ,亚低温治疗组病人伤后早期的高ICP、高血糖、高乳酸血症分别显著下降 (P <0 0 5 ) ;严重的低PbrO2 迅速上升并维持在正常水平 ;生命体征、血气及血电解质无显著差异 ;无严重并发症 ,死亡率降低 ,恢复良好率提高 ,预后显著改善。结论 亚低温具有肯定的脑保护作用 ,临床上用于治疗急性重型颅脑损伤病人 ,安全有效 ,可降低死亡率 ,提高生存质量 ,无严重并发症。直接监测PbrO2 和BT ,对亚低温治疗更有指导意义  相似文献   

8.
目的探讨脑组织氧分压、脑灌注压及颅内压对重型颅脑创伤患者预后的影响。方法观察112例重型颅脑损伤病人脑灌注压(CCP)、颅内压(ICP)、脑组织氧分压(PbtO2)的变化,比较CCP、ICP、PbtO2与预后的相互关系。结果 PbtO2(24h及72h)与预后有显著性相关,随着PbtO2的升高,预后良好的比例明显升高。ICP(24h及72h)与预后显著相关,随着ICP的升高,预后良好的比例明显下降。CCP(24h及72h)与预后有显著性相关,随着CCP的升高,预后良好的比例明显升高。结论 PbtO2、ICP、CPP与预后均有显著相关性,24h及72h的CCP、ICP对预后有显著影响。  相似文献   

9.
目的研究高氧血颈动脉灌注存重型颅脑损伤治疗中的作用。方法对22例重型颅脑损伤患者于伤后约3.5d行高氧血颈动脉灌注治疗,监测灌注前、中、后的PbtO2、PbtCO2、pHbt值变化以及伤后三月格拉斯哥预后评分(GOS)的变化。结果高氧血颈动脉灌注能改善重型颅脑损伤后早期继发性脑缺血缺氧状态和意识状态,进而改善患者预后。结论高氧血颈动脉灌注在重型颅脑损伤的早期治疗中起着积极和重要的作用。  相似文献   

10.
目的研究过度通气(HV)对重型颅脑创伤(sTBI)病人的颅内压(ICP)、脑血流(CBF)和脑组织氧分压(PbtO2)的影响。方法20例sTBI(GCS3~8分)病人,伤后2~5dICP超过20mmHg时,应用机械通气法使呼气末二氧化碳分压(PetCO2)维持在27~32mmHg之间30min,同时连续监测ICP、CBF和PbtO2。结果所有病人共进行了46次HV,HV可使ICP明显下降(43/46),而CBF和PbtO2对CO2的反应差异较大,其中大部分试验(38/46)CBF和PbtO2明显下降,但仍然保持在各自的缺血阈值(50AU和10mmHg)之上;5次试验CBF和PbtO2下降低于各自的缺血阈值;3次试验ICP无明显变化,CBF轻度升高,而PbtO2下降。结论HV可降低ICP,但有导致或加重脑缺血的危险,应尽量避免早期长时程应用。HV应在CBF持续监测下应用。  相似文献   

11.
Rosenberger PB  Adams HR 《Neurology》2011,77(16):1504-1505
  相似文献   

12.
13.
梗死灶切除治疗重型颅脑外伤合并大面积脑梗死   总被引:2,自引:0,他引:2  
目的探讨重型颅脑外伤合并大面积脑梗死的最佳外科处理方式.方法对53例重型颅脑外伤病人行开颅血肿、挫伤脑组织清除术加去骨瓣减压术,其中31例未行梗死灶切除(第1组),22例行梗死灶切除(第2组).术后1个月、12个月评价两组的GOS,并行χ2检验.结果术后第1组死亡7例,植物生存5例,重残8例,轻残11例;第2组死亡1例,植物生存2例,重残9例,轻残10例.两组不良结果率(死亡 植物状态)有显著性差异,P<0.05.结论对重型颅脑外伤合并大面积脑梗死的病人行挫伤脑组织和血肿加梗死灶切除,对降低病死率、提高有效生存率有明显作用.  相似文献   

14.
颅脑损伤术后并发脑梗死的临床分析   总被引:2,自引:0,他引:2  
目的探讨颅脑损伤术后脑梗死的发生机制及治疗方法。方法回顾分析24例颅脑损伤术后病人发生脑梗死的临床资料。结果保守治疗19例,开颅减压5例,死亡7例。结论颅脑损伤后如手术指征明确则须及时手术。术后注意病情变化采取综合治疗措施。应积极保持脑灌注压、维持血压及血氧,降低颅内压,改善脑血管痉挛,早期扩管改善微循环,有利于降低死残率,改善预后。  相似文献   

15.
16.
Brain metastasis is a common complication of systemic cancer and significant cause of suffering in oncology patients. Despite a plethora of available treatment modalities, the prognosis is poor with a median survival time of approximately one year. For patients with controlled systemic disease, good performance status, and a limited number of metastases, treatment typically entails surgical resection or radiosurgery, followed by whole brain radiotherapy (WBRT) to control microscopic disease. WBRT is known to control the progression of cancer in the brain, but it can also have toxic effects, particularly with regard to neurocognition. There is no consensus as to whether the benefit of WBRT outweighs the potential harm. We review the evidence related to the question of whether patients undergoing surgical resection of brain metastases should receive adjuvant WBRT.  相似文献   

17.
18.
2001 Harcourt Publishers Ltd  相似文献   

19.
CONTEXT In alcohol-dependent patients, brain atrophy and functional brain activation elicited by alcohol-associated stimuli may predict relapse. However, to date, the interaction between both factors has not been studied. OBJECTIVE To determine whether results from structural and functional magnetic resonance imaging are associated with relapse in detoxified alcohol-dependent patients. DESIGN A cue-reactivity functional magnetic resonance experiment with alcohol-associated and neutral stimuli. After a follow-up period of 3 months, the group of 46 detoxified alcohol-dependent patients was subdivided into 16 abstainers and 30 relapsers. SETTING Faculty for Clinical Medicine Mannheim at the University of Heidelberg, Germany. PARTICIPANTS A total of 46 detoxified alcohol-dependent patients and 46 age- and sex-matched healthy control subjects MAIN OUTCOME MEASURES Local gray matter volume, local stimulus-related functional magnetic resonance imaging activation, joint analyses of structural and functional data with Biological Parametric Mapping, and connectivity analyses adopting the psychophysiological interaction approach. RESULTS Subsequent relapsers showed pronounced atrophy in the bilateral orbitofrontal cortex and in the right medial prefrontal and anterior cingulate cortex, compared with healthy controls and patients who remained abstinent. The local gray matter volume-corrected brain response elicited by alcohol-associated vs neutral stimuli in the left medial prefrontal cortex was enhanced for subsequent relapsers, whereas abstainers displayed an increased neural response in the midbrain (the ventral tegmental area extending into the subthalamic nucleus) and ventral striatum. For alcohol-associated vs neutral stimuli in abstainers compared with relapsers, the analyses of the psychophysiological interaction showed a stronger functional connectivity between the midbrain and the left amygdala and between the midbrain and the left orbitofrontal cortex. CONCLUSIONS Subsequent relapsers displayed increased brain atrophy in brain areas associated with error monitoring and behavioral control. Correcting for gray matter reductions, we found that, in these patients, alcohol-related cues elicited increased activation in brain areas associated with attentional bias toward these cues and that, in patients who remained abstinent, increased activation and connectivity were observed in brain areas associated with processing of salient or aversive stimuli.  相似文献   

20.

Background

Deep brain stimulation (DBS) of the subcallosal cingulate (SCC) is an emerging experimental therapy for treatment-resistant depression. New developments in SCC DBS surgical targeting are focused on identifying specific axonal pathways for stimulation that are estimated from preoperatively collected diffusion-weighted imaging (DWI) data. However, brain shift induced by opening burr holes in the skull may alter the position of the target pathways.

Objectives

Quantify the effect of electrode location deviations on tractographic representations for stimulating the target pathways using longitudinal clinical imaging datasets.

Methods

Preoperative MRI and DWI data (planned) were coregistered with postoperative MRI (1 day, near-term) and CT (3 weeks, long-term) data. Brain shift was measured with anatomical control points. Electrode models corresponding to the planned, near-term, and long-term locations were defined in each hemisphere of 15 patients. Tractography analyses were performed using estimated stimulation volumes as seeds centered on the different electrode positions.

Results

Mean brain shift of 2.2 mm was observed in the near-term for the frontal pole, which resolved in the long-term. However, electrode displacements from the planned stereotactic target location were observed in the anterior-superior direction in both the near-term (mean left electrode shift: 0.43 mm, mean right electrode shift: 0.99 mm) and long-term (mean left electrode shift: 1.02 mm, mean right electrode shift: 1.47 mm). DBS electrodes implanted in the right hemisphere (second-side operated) were more displaced from the plan than those in the left hemisphere. These displacements resulted in 3.6% decrease in pathway activation between the electrode and the ventral striatum, but 2.7% increase in the frontal pole connection, compared to the plan. Remitters from six-month chronic stimulation had less variance in pathway activation patterns than the non-remitters.

Conclusions

Brain shift is an important concern for SCC DBS surgical targeting and can impact connectomic analyses.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号