目的：探讨自制抗折压型气管导管延长管用于脑瘫患儿俯卧位下手术气道管理的效果和安全性。方法拟行功能性选择性脊神经后根切断术的脑瘫患儿25例,ASAⅠ～Ⅱ级,性别不限,年龄2～12岁,体重10～46kg。麻醉诱导插管后采用容量控制（VCV）...目的：探讨自制抗折压型气管导管延长管用于脑瘫患儿俯卧位下手术气道管理的效果和安全性。方法拟行功能性选择性脊神经后根切断术的脑瘫患儿25例,ASAⅠ～Ⅱ级,性别不限,年龄2～12岁,体重10～46kg。麻醉诱导插管后采用容量控制（VCV）通气。采用自身对照实脸,机械通气10min 后记录血压、SpO 2、P Et CO 2、气道压力峰值（P peak ）、平台压（P plat ）,采集桡动脉血作床旁血气分析。然后在气管导管与 Y 形接头之间加上自制的抗折压型气管导管延长管,不改变通气参数,10min 再进行同样的监测并记录。结果2种气道管理方式患儿的氧合都满意,增加延长管前后患儿血流动力学稳定,Pplat、Ppeak、Sp02、Pa02、P ET CO 2,PaCO 2等差异无统计学意义（P 〉0.05）。增加延长管后克服了导管口唇外露部分较少而与螺纹管连接后不能自然旋置的缺点。结论自制抗折压型气管导管延长管简单易做,不增加患儿气道阻力,可安全用于全麻下行脑瘫患儿俯卧位下手术的气道管理。展开更多
The position effect of the photoelectron multiplier tube （PMT） of the electromagnetic calorimeter （ECAL） of Alpha Magnetic Spectrometer-02 （AMS-02） has been studied with beam-test data. The reconstructed deposit...The position effect of the photoelectron multiplier tube （PMT） of the electromagnetic calorimeter （ECAL） of Alpha Magnetic Spectrometer-02 （AMS-02） has been studied with beam-test data. The reconstructed deposited energy in a layer versus incidence position in the cell can be described by Gaussian distribution, maximum and minimum value can be obtained when the particle passes across the center and the edge of a cell respectively. The distribution can be used to correct the effect of incidence position on energy reconstruction. Much better energy resolution was acquired be got with the correction, for 100 GeV electrons, energy resolution improved from 3% to 2%.展开更多
文摘目的：探讨自制抗折压型气管导管延长管用于脑瘫患儿俯卧位下手术气道管理的效果和安全性。方法拟行功能性选择性脊神经后根切断术的脑瘫患儿25例,ASAⅠ～Ⅱ级,性别不限,年龄2～12岁,体重10～46kg。麻醉诱导插管后采用容量控制（VCV）通气。采用自身对照实脸,机械通气10min 后记录血压、SpO 2、P Et CO 2、气道压力峰值（P peak ）、平台压（P plat ）,采集桡动脉血作床旁血气分析。然后在气管导管与 Y 形接头之间加上自制的抗折压型气管导管延长管,不改变通气参数,10min 再进行同样的监测并记录。结果2种气道管理方式患儿的氧合都满意,增加延长管前后患儿血流动力学稳定,Pplat、Ppeak、Sp02、Pa02、P ET CO 2,PaCO 2等差异无统计学意义（P 〉0.05）。增加延长管后克服了导管口唇外露部分较少而与螺纹管连接后不能自然旋置的缺点。结论自制抗折压型气管导管延长管简单易做,不增加患儿气道阻力,可安全用于全麻下行脑瘫患儿俯卧位下手术的气道管理。
基金Supported by National Natural Science Foundation of China (10805050)
文摘The position effect of the photoelectron multiplier tube （PMT） of the electromagnetic calorimeter （ECAL） of Alpha Magnetic Spectrometer-02 （AMS-02） has been studied with beam-test data. The reconstructed deposited energy in a layer versus incidence position in the cell can be described by Gaussian distribution, maximum and minimum value can be obtained when the particle passes across the center and the edge of a cell respectively. The distribution can be used to correct the effect of incidence position on energy reconstruction. Much better energy resolution was acquired be got with the correction, for 100 GeV electrons, energy resolution improved from 3% to 2%.
