Objective: To investigate the clinical effects of the mask continuous positive airway pressure (CPAP) mechanical ventilation in children with severe pneumonia. Methods: A total of 100 cases of children with severe pne...Objective: To investigate the clinical effects of the mask continuous positive airway pressure (CPAP) mechanical ventilation in children with severe pneumonia. Methods: A total of 100 cases of children with severe pneumonia were randomly divided into two groups, study group with 50 children and control group with 50 children. These 100 children were given comprehensive treatment measures: treatment of anti-infection, anti-respiratory failure, anti-heart failure (if necessary), relieving cough and reducing sputum, aerosol inhalation, limited fluid volume, nutrition support etc. Children in the study group were added mask continuous positive airway pressure mechanical ventilation (CPAP). Children in the control group were added ordinary mask oxygen inhalation. Investigated and checked the treatment effect in these two groups. Results: After treatment, SaO2, PaO2 in both two groups were showed significantly higher than before the treatment. PaO2 of the study group is obviously higher than the control group. The oxygen inhalation time of the study group was obviously lesser than the control group. The total effective rate of the study group was significantly higher than the control group which was 96.0% vs 66.0%. Conclusion: The mask continuous positive airway pressure (CPAP) mechanical ventilation can significantly improve the related symptoms and blood gas status of the children with severe pneumonia, shorten the oxygen inhalation time and had remarkable effect.展开更多
Introduction: During the application of non-invasive positive pressure ventilation (NPPV) therapy in home mechanical ventilation (HMV), leaks in the NPPV mask may occur owing to the position of the mask due to conditi...Introduction: During the application of non-invasive positive pressure ventilation (NPPV) therapy in home mechanical ventilation (HMV), leaks in the NPPV mask may occur owing to the position of the mask due to conditions such as skin disorders. Methods: To investigate whether such a leak affects FiO2 supplied to the alveoli, we simulated a patient with chronic obstructive pulmonary disorder during NPPV in HMV. In addition, FiO2 was measured in the portion assumed to be the mouth and lungs while setting the flow of the oxygen concentrator and leak amount based on a previous study. Results: FiO2 supplied to the lungs increased statistically significantly upon increasing the amount of leak (P Conclusions: We observed that FiO2 supplied to alveoli can be reduced by a leak in the NPPV mask. Because our results differ from those previously reported, we believe that further studies should reassess the selection of respirators and oxygen concentrators.展开更多
OSAHS(Obstructive Sleep Apnea Hypopnea Syndrome)is a respiratory disease mainly characterized by limited and repeated pauses of breathing in sleep.Currently,the optimal treatment is to apply CPAP(Continuous Positive A...OSAHS(Obstructive Sleep Apnea Hypopnea Syndrome)is a respiratory disease mainly characterized by limited and repeated pauses of breathing in sleep.Currently,the optimal treatment is to apply CPAP(Continuous Positive Airway Pressure)ventilation on the upper airway of the patient through a household respiratory machine.However,if the ventilator mask is designed improperly,it might cause the residue and repeated inhalation of CO2,which will exert an adverse impact on the therapeutic effect.Present research numerically analyzed the CO2 transportation inside a commercial ventilator mask(Mirage SoftGel,ResMed,Australia)based on the reconstructed 3D numerical model of a volunteer's face and performed the improved design of the ventilator mask in terms of the CO2 residual concentration below the nostrils.The fluid dynamic analyses showed that at the end time of expiratory,the CO2 residual concentration below the nostrils is close to 4%.To improve the therapeutic effect,we changed the position of the exhaust holes and found that by moving the exhaust holes to the bottom of the ventilator mask,the CO2 residual concentration below the nostrils would be reduced to no more than 1%.This study established a near physiological computational model and provided a new method for the individualized design of the commercial ventilator mask.展开更多
目的评估喉罩小潮气量较快频率间歇正压通气在胸腔镜手汗症手术麻醉中应用的可行性和安全性。方法拟行胸腔镜下胸交感神经切断术的手汗症患者50例,随机分为两组(n=25):D组(双腔管组)行单肺通气;L组(喉罩组)行小潮气量较快频率间歇正压通...目的评估喉罩小潮气量较快频率间歇正压通气在胸腔镜手汗症手术麻醉中应用的可行性和安全性。方法拟行胸腔镜下胸交感神经切断术的手汗症患者50例,随机分为两组(n=25):D组(双腔管组)行单肺通气;L组(喉罩组)行小潮气量较快频率间歇正压通气;术中持续监测呼气末二氧化碳(PetCO2)、血氧饱和度(SpO2)、平均动脉压(MAP)、心率(HR)、心电图(ECG)和双手温度。分别于麻醉诱导前(T1)、喉罩/双腔管置入前(T2)、喉罩/双腔管置入后1 m in(T3)、右胸切皮即刻(T4)、切断右胸交感神经即刻(T5)、右侧入镜孔缝合完成(T6)、切断左胸交感神经即刻(T7)、左侧入镜孔缝合完成(T8)、苏醒后拨喉罩/双腔管即刻(T9)各时点采集动脉血样进行血气分析,记录PetCO2、SpO2、MAP、HR等指标。同时记录喉罩/双腔管置入时间、麻醉时间、术中术后不良反应和并发症以及麻醉药的用量。结果 L组置入时间和麻醉时间明显少于D组(P<0.05);L组异丙酚、舒芬太尼的用量明显少于D组(P<0.05),两组麻醉手术均顺利,未发生呕吐、反流、误吸,术后无声音嘶哑。拔喉罩/双腔管呛咳、术后咽喉疼痛发生率L组明显低于D组(P<0.05)。D组MAP、HR水平在T3和T9时明显高于T1和T2时(P<0.05),D组MAP、HR水平在T3和T9时亦明显高于L组(P<0.05)。胸腔镜操作期间两组T5和T7时的二氧化碳分压(PaCO2)升高(P<0.05)。结论喉罩小潮气量较快频率间歇正压通气适用于胸腔镜手汗症手术的麻醉。展开更多
文摘Objective: To investigate the clinical effects of the mask continuous positive airway pressure (CPAP) mechanical ventilation in children with severe pneumonia. Methods: A total of 100 cases of children with severe pneumonia were randomly divided into two groups, study group with 50 children and control group with 50 children. These 100 children were given comprehensive treatment measures: treatment of anti-infection, anti-respiratory failure, anti-heart failure (if necessary), relieving cough and reducing sputum, aerosol inhalation, limited fluid volume, nutrition support etc. Children in the study group were added mask continuous positive airway pressure mechanical ventilation (CPAP). Children in the control group were added ordinary mask oxygen inhalation. Investigated and checked the treatment effect in these two groups. Results: After treatment, SaO2, PaO2 in both two groups were showed significantly higher than before the treatment. PaO2 of the study group is obviously higher than the control group. The oxygen inhalation time of the study group was obviously lesser than the control group. The total effective rate of the study group was significantly higher than the control group which was 96.0% vs 66.0%. Conclusion: The mask continuous positive airway pressure (CPAP) mechanical ventilation can significantly improve the related symptoms and blood gas status of the children with severe pneumonia, shorten the oxygen inhalation time and had remarkable effect.
文摘Introduction: During the application of non-invasive positive pressure ventilation (NPPV) therapy in home mechanical ventilation (HMV), leaks in the NPPV mask may occur owing to the position of the mask due to conditions such as skin disorders. Methods: To investigate whether such a leak affects FiO2 supplied to the alveoli, we simulated a patient with chronic obstructive pulmonary disorder during NPPV in HMV. In addition, FiO2 was measured in the portion assumed to be the mouth and lungs while setting the flow of the oxygen concentrator and leak amount based on a previous study. Results: FiO2 supplied to the lungs increased statistically significantly upon increasing the amount of leak (P Conclusions: We observed that FiO2 supplied to alveoli can be reduced by a leak in the NPPV mask. Because our results differ from those previously reported, we believe that further studies should reassess the selection of respirators and oxygen concentrators.
基金We acknowledge the National Natural Science Foundation of China for supporting the project via the grant number 11472062 and 11002034.
文摘OSAHS(Obstructive Sleep Apnea Hypopnea Syndrome)is a respiratory disease mainly characterized by limited and repeated pauses of breathing in sleep.Currently,the optimal treatment is to apply CPAP(Continuous Positive Airway Pressure)ventilation on the upper airway of the patient through a household respiratory machine.However,if the ventilator mask is designed improperly,it might cause the residue and repeated inhalation of CO2,which will exert an adverse impact on the therapeutic effect.Present research numerically analyzed the CO2 transportation inside a commercial ventilator mask(Mirage SoftGel,ResMed,Australia)based on the reconstructed 3D numerical model of a volunteer's face and performed the improved design of the ventilator mask in terms of the CO2 residual concentration below the nostrils.The fluid dynamic analyses showed that at the end time of expiratory,the CO2 residual concentration below the nostrils is close to 4%.To improve the therapeutic effect,we changed the position of the exhaust holes and found that by moving the exhaust holes to the bottom of the ventilator mask,the CO2 residual concentration below the nostrils would be reduced to no more than 1%.This study established a near physiological computational model and provided a new method for the individualized design of the commercial ventilator mask.
文摘目的评估喉罩小潮气量较快频率间歇正压通气在胸腔镜手汗症手术麻醉中应用的可行性和安全性。方法拟行胸腔镜下胸交感神经切断术的手汗症患者50例,随机分为两组(n=25):D组(双腔管组)行单肺通气;L组(喉罩组)行小潮气量较快频率间歇正压通气;术中持续监测呼气末二氧化碳(PetCO2)、血氧饱和度(SpO2)、平均动脉压(MAP)、心率(HR)、心电图(ECG)和双手温度。分别于麻醉诱导前(T1)、喉罩/双腔管置入前(T2)、喉罩/双腔管置入后1 m in(T3)、右胸切皮即刻(T4)、切断右胸交感神经即刻(T5)、右侧入镜孔缝合完成(T6)、切断左胸交感神经即刻(T7)、左侧入镜孔缝合完成(T8)、苏醒后拨喉罩/双腔管即刻(T9)各时点采集动脉血样进行血气分析,记录PetCO2、SpO2、MAP、HR等指标。同时记录喉罩/双腔管置入时间、麻醉时间、术中术后不良反应和并发症以及麻醉药的用量。结果 L组置入时间和麻醉时间明显少于D组(P<0.05);L组异丙酚、舒芬太尼的用量明显少于D组(P<0.05),两组麻醉手术均顺利,未发生呕吐、反流、误吸,术后无声音嘶哑。拔喉罩/双腔管呛咳、术后咽喉疼痛发生率L组明显低于D组(P<0.05)。D组MAP、HR水平在T3和T9时明显高于T1和T2时(P<0.05),D组MAP、HR水平在T3和T9时亦明显高于L组(P<0.05)。胸腔镜操作期间两组T5和T7时的二氧化碳分压(PaCO2)升高(P<0.05)。结论喉罩小潮气量较快频率间歇正压通气适用于胸腔镜手汗症手术的麻醉。
