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endoscopic neck surgery
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  颈部腔镜手术
     (2) To study the effect on Endothelin(ET) and Neuron nitricoxide synthase(nNOS) in brain tissue during endoscopic neck surgery with carbon dixide insufflation and to investigate the possible roles of brain damage in rabbits model.
     (2)CO_2气压在颈部腔镜手术中压力对兔脑组织ET、nNOS的影响并讨论其对脑组织损伤的意义。
短句来源
     Conclusion: Carbon dioxide insufflation pressure influences jugular venous circumfluence during endoscopic neck surgery, which is a key reason for the changes of CBF.
     结论:颈部腔镜手术中 CO2 压力影响颈静脉回流是导致 CBF改变的主要原因。
短句来源
     Effect on Cerebral Blood Flow During Endoscopic Neck Surgery with Carbon Dixide Insufflation in Rabbits Model
     颈部腔镜手术的兔模型中CO_2压力对脑血流的影响
短句来源
     Objective: To study the effect and its significance on cerebral blood flow(CBF) by analyzing cerebral oxygenation during endoscopic neck surgery with carbon dioxide insufflation in rabbits model.
     目的:通过脑氧代谢探讨颈部腔镜手术中 CO2 充气压力对兔脑血流量(CBF)的影响及意义。
短句来源
     Conclusion: A decrease in jugular venous circumfluence occurs pressures during endoscopic neck surgery with carbon dixide insufflation, possibly as a basilic reason changed CBF.
     结论:研究认为,颈部腔镜手术中CO_2压力影响颈静脉回流是导致CBF改变的主要原因。
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  “endoscopic neck surgery”译为未确定词的双语例句
     Methods: Twenty-four rabbits, 6 per group, underwent endoscopic neck surgery . Insufflation was performed with CO_2 at OmmHg(sham), 4mmHg, 8 mmHg, 12 mmHg.
     方法:运用CO_2气建立和维持兔颈部的手术空间,实验动物分成四组,每组6只,分别维持0mmHg(对照组)、4mmHg、8mmHg、12mmHg气压。
短句来源
     Methods: Twenty-four rabbits, 6 in each group, underwent endoscopic neck surgery. Insufflation was performed with CO_2 pressure at 0 mmHg(sham), 4 mmHg, 8 mmHg and 12 mmHg.
     方法:运用CO2 气建立和维持兔颈部的手术空间,实验动物分成 4 组,每组 6 只,分别维持 0 mmHg(对照组)、4 mmHg、8 mmHg、12 mmHg气压。
短句来源
     Method :Twenty-four rabbits ,6 pergroup, underwent endoscopic neck surgery . Insufflation was performedwith CO2at 4 mmHg ,8 mmHg ,12 mmHg and 0 mmHg(sham) .
     方法:运用CO2气建立和维持兔颈部的手术空间,24只动物分成4组,每组6只,即3个气压组(4mmHg、8mmHg、12mmHg)和1个对照组(0mm-Hg)。
短句来源
     The effect of cervical gas insufflation on intracranial pressure during endoscopic neck surgery
     颈部内镜手术充二氧化碳和氦气对颅内压的影响
短句来源
     The effect of cervical gas insufflation on metabolic and hemodynamic during endoscopic neck surgery
     颈部内镜手术充CO_2和氦气对代谢和血流动力学的影响
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  相似匹配句对
     Endoscopic management of bladder neck obstruction
     膀胱颈部梗阻的腔内手术治疗
短句来源
     The value of endoscopic technique in maxillofacial and neck regions
     内窥镜技术在颌面颈部病变切除的应用
短句来源
     Endoscopic Abdominoplasty
     内窥镜腹壁整形术
短句来源
     Endoscopic rhytidectomy
     内窥镜除皱术
短句来源
     NECK DISSECTION
     颈淋巴结清扫术
短句来源
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  endoscopic neck surgery
In this paper, we evaluated the merits and limits of endoscopic neck surgery.
      
These results support the feasibility of robotic endoscopic neck surgery on a neck the size of a human infant's.
      
We studied the feasibility of performing robotic endoscopic neck surgery on a porcine model of the human infant neck.
      
Since the first endoscopic thyroidectomy in 1997, endoscopic neck surgery was developed remarkably by several approaches.
      


Objective: To study the effect and its significance on cerebral blood flow(CBF) by analyzing cerebral oxygenation during endoscopic neck surgery with carbon dioxide insufflation in rabbits model. Methods: Twenty-four rabbits, 6 in each group, underwent endoscopic neck surgery. Insufflation was performed with CO_2 pressure at 0 mmHg(sham), 4 mmHg, 8 mmHg and 12 mmHg. Mean artery pressures (MAP), heart rate (HR) and central venous pressure (CVP) were monitored dynamically during insufflation. The...

Objective: To study the effect and its significance on cerebral blood flow(CBF) by analyzing cerebral oxygenation during endoscopic neck surgery with carbon dioxide insufflation in rabbits model. Methods: Twenty-four rabbits, 6 in each group, underwent endoscopic neck surgery. Insufflation was performed with CO_2 pressure at 0 mmHg(sham), 4 mmHg, 8 mmHg and 12 mmHg. Mean artery pressures (MAP), heart rate (HR) and central venous pressure (CVP) were monitored dynamically during insufflation. The changes in PjvO_2(oxygen pressure of jugular blood), SjvO_2 (oxygen saturation of jugular blood) and Ca-jvDO_2(cerebral ateriovenous difference of oxygen)were observed. Results: After 150 min, CVP of the 12 mmHg group with CO_2 insufflation pressure significantly increased to 7.54±0.23 cmH_2O(P<0.05), while MAP without significant changes. PjvO_2 and SjvO_2 of the 8 mmHg group and of the 12 mmHg group was greatly decreased respectively compared with those of the sham group and the 4 mmHg group after 150 min (P< 0.05 ). Ca-jvDO_2 of every CO_2 insufflation group improved obviously (P<0.05) compared with that of the sham group. The cerebral tissue had significant changes in the cytologic analysis when the CO_2 insufflation pressure was higher than 8 mmHg. Conclusion: Carbon dioxide insufflation pressure influences jugular venous circumfluence during endoscopic neck surgery, which is a key reason for the changes of CBF. The CO_2 insufflation pressures can cause the cerebral hyperaemia, hypoxia and cerebral tissue denaturation.

目的:通过脑氧代谢探讨颈部腔镜手术中 CO2 充气压力对兔脑血流量(CBF)的影响及意义。方法:运用CO2 气建立和维持兔颈部的手术空间,实验动物分成 4 组,每组 6 只,分别维持 0 mmHg(对照组)、4 mmHg、8 mmHg、12 mmHg气压。动态监测平均动脉压(MAP)、心率(HR)、中心静脉压(CVP)变化。分析观察颈内静脉血氧分压(PjvO2)、颈静脉氧饱和度(SjvO2 )、脑动 静脉血氧含量差(Ca jvDO2 )变化。结果:12 mmHg气压组 150min CVP增为(7.54±0.23)cmH2O(P<0.05),而 MAP基本不变。8 mmHg气压组、12 mmHg气压组 150 minPjvO2、SjvO2 与对照组和4 mmHg比较分别下降(P<0.05)。各实验组Ca jvDO2 上升(P<0.05)。8 mmHg以上气压组有超微细胞学改变。结论:颈部腔镜手术中 CO2 压力影响颈静脉回流是导致 CBF改变的主要原因。CO2压力可以引起脑充血、缺氧反应、脑组织变性。

Objective :To study the effect on Endothelin(ET) and Neuron nitri-coxide synthase(nNOS) in brain tissue during endoscopic neck surgerywith carbon dixide insufflation and to investigate the possible roles ofbrain damage in rabbits model .Method :Twenty-four rabbits ,6 pergroup, underwent endoscopic neck surgery .Insufflation was performedwith CO2at 4 mmHg ,8 mmHg ,12 mmHg and 0 mmHg(sham) . After150 min , we use i mmunohistochemicalacid to dyeing ET and nNOS ofrabbit cerebral tissue and use computer...

Objective :To study the effect on Endothelin(ET) and Neuron nitri-coxide synthase(nNOS) in brain tissue during endoscopic neck surgerywith carbon dixide insufflation and to investigate the possible roles ofbrain damage in rabbits model .Method :Twenty-four rabbits ,6 pergroup, underwent endoscopic neck surgery .Insufflation was performedwith CO2at 4 mmHg ,8 mmHg ,12 mmHg and 0 mmHg(sham) . After150 min , we use i mmunohistochemicalacid to dyeing ET and nNOS ofrabbit cerebral tissue and use computer i mage analysis systemto assesstheir expression .Results :Every air pressure group compared with com-parison group:the average luminosity and average gray degree of ETandnNOS expressionin cerebral tissue are significance(P<0 .05) .12 mm Hgair pressure group compared with other groups :the expression of ETincerebral tissueis significance(P<0 .05)and cerebral tissue appears edema.12 mmHg air pressure group, 8 mmHg air pressure group comparedwith comparison group and 4 mmHg air pressure group separately : theexpression of nNOS in cerebral tissue is also significance(P<0 .05)andthe change of cerebral tissue structure in electron microscope appears .Conclusion:The study shows that :to raise carbon dioxide pressure andprolong surgical ti me canlead ETand nNOSincreasingin cerebral tissue ,and then cause cerebral ischemia and cerebral tissue damage .

目的:探讨在颈部腔镜手术中CO2压力对兔脑组织内皮素(ET)、神经型一氧化氮合成酶(nNOS)的影响并讨论其对脑组织损伤的意义。方法:运用CO2气建立和维持兔颈部的手术空间,24只动物分成4组,每组6只,即3个气压组(4mmHg、8mmHg、12mmHg)和1个对照组(0mm-Hg)。维持CO2气压150min后,对兔脑组织进行ET、nNOS免疫组化染色并结合计算机图像分析系统对表达变化进行评定。结果:各CO2气压组与对照组相比脑组织ET、nNOS阳性表达的平均光度、平均灰度有显著性差异(P<0.05)。12mmHg气压组脑组织ET与其他气压组有显著性差异(P<0.05),并出现脑组织水肿;12mmHg气压组、8mmHg气压组脑组织nNOS与对照组、4mmHg气压组有显著性差异(P<0.05),同时出现脑组织电镜下结构改变。结论:在颈部腔镜手术中,随着CO2气压增高及手术时间的延长,脑组织ET、nNOS增加,造成脑缺血和脑组织损伤。

Objective:Carbon dioxide and helium were insufflated into the neck of rabbits to investigate the effect of different levels of insufflation pressure and duration on metabolic and hemodynamic changes.Method:Fifteen New Zealand rabbits were randomly divided into 5 groups: 5 mmHg CO_2, 10 mmHg CO_2, 15 mmHg CO_2, 15 mmHg He and 0 mmHg. Arterial partial pressure of CO_2 (PaCO_2), pH, heart rate (HR), mean arterial pressure (MAP) and central venous pressure (CVP) were measured at baseline, 45 min and 90 min after...

Objective:Carbon dioxide and helium were insufflated into the neck of rabbits to investigate the effect of different levels of insufflation pressure and duration on metabolic and hemodynamic changes.Method:Fifteen New Zealand rabbits were randomly divided into 5 groups: 5 mmHg CO_2, 10 mmHg CO_2, 15 mmHg CO_2, 15 mmHg He and 0 mmHg. Arterial partial pressure of CO_2 (PaCO_2), pH, heart rate (HR), mean arterial pressure (MAP) and central venous pressure (CVP) were measured at baseline, 45 min and 90 min after gas insufflation and 30 min after desufflation.Result:Insufflation of CO_2 at 5 mmHg had not any significant effect on the parameters. PaCO_2 increased significantly 45 min and 90 min after CO_2 insufflation at 10 mmHg (P<0.05). Marked changes in PaCO_2, pH and CVP occurred 45 min and 90 min after CO_2 insufflation at 15 mmHg (P< 0.05), and the parameters did not return to baseline 30 min after desufflation. In animals receiving He insufflation at 15 mmHg, CVP increased significantly after 90 min(P<0.05), and the parameters returned to baseline 30 min after desufflation. Animals receiving He insufflation did not experience hypercapnia. No significant changes in HR and MAP occurred in all animals.Conclusion:Carbon dioxide insufflation for endoscopic neck surgery is safe below 10 mmHg. When higher pressure is required, the level lower than 15 mmHg is recommended and the insufflation duration should be limited. The use of He should be careful due to the low solubility.

目的:通过兔颈部灌注CO2和氦气(He),检测不同压力和灌注持续时间对动物代谢、血流动力学各项指标的影响。方法:将15只新西兰兔随机分成5组,每组3只,分别为5mmHg(1mmHg=0.133kPa)CO2组、10mmHgCO2组、15mmHgCO2组、15mmHgHe组及对照组(颈部不充气)。分别在充气前(T0),充气后45min(T1)、90min(T2)和放气后30min(T3)记录PaCO2、pH、HR、MAP和CVP。结果:5mmHgCO2组各项检测指标均无明显变化;10mmHgCO2组在T1和T2时PaCO2显著升高(P<0.01);15mmHgCO2组在T1和T2时PaCO2、pH和CVP显著升高(均P<0.01),T3时仍高于T0(P<0.01或P<0.05)。15mmHgHe组在T2时CVP显著升高(P<0.05),T3时回落到基线水平。各组的HR和MAP在各时间点均无显著变化。结论:在颈部内镜手术中将CO2充气压力控制在10mmHg以下是安全的;当需要更大压力时,应尽可能将压力控制在15mmHg以下,并严格限制充气时间;He由于溶解度低应慎用。

 
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