BACKGROUND:Early withdrawal of invasive mechanical ventilation(IMV) followed by noninvasive MV(NIMV) is a new strategy for changing modes of treatment in patients with acute exacerbations of chronic obstructive pulmon...BACKGROUND:Early withdrawal of invasive mechanical ventilation(IMV) followed by noninvasive MV(NIMV) is a new strategy for changing modes of treatment in patients with acute exacerbations of chronic obstructive pulmonary disease(AECOPD) with acute respiratory failure(ARF).Using pulmonary infection control window(PIC window) as the switch point for transferring from invasive to noninvasive MV,the time for early extubation can be more accurately judged,and therapy efficacy can be improved.This study aimed to prospectively investigate the clinical effectiveness of fiberoptic bronchscopy(FOB) in patients with AECOPD during sequential weaning of invasive-noninvasive MV.METHODS:Since July 2006 to January 2011,106 AECOPD patients with ARF were treated with comprehensive medication and IMV after hospitalization.Patients were randomly divided into two groups according to whether fiberoptic bronchoscope is used(group A,n=54) or not(group B,n=52) during sequential weaning from invasive to noninvasive MV.In group A,for sputum suction and bronchoalveolar lavage(BAL),a fiberoptic bronchoscope was put into the airway from the outside of an endotracheal tube,which was accompanied with uninterrupted use of a ventilator.After achieving PIC window,patients of both groups changed to NIMV mode,and weaned from ventilation.The following listed indices were used to compare between the groups after treatment:1) the occurrence time of PIC,the duration of MV,the length of ICU stay,the success rate of weaning from MV for the first time,the rate of reventilatJon and the occurrence rate of ventilator-associated pneumonia(VAP);2) the convenience and safety of FOB manipulation.The results were compared using Student's f test and the Chi-square test.RESULTS:The occurrence time of PIC was(5.01 ±1.49) d,(5.87±1.87) d in groups A and B,respectively(P<0.05);the duration of MV was(6.98±1.84) d,(8.69±2.41) d in groups A and B,respectively(P<0.01);the length of ICU stay was(9.25±1.84) d,(11.10±2.63) d in groups A and B,respectively(P<0.01);the su展开更多
目的探讨慢性阻塞性肺疾病急性加重(AECOPD)患者以肺部感染控制窗(PIC-W)为切换点撤机序贯经鼻高流量湿化氧疗(HFNC)与序贯无创正压通气(NPPV)对炎症指标及预后的影响。方法选取徐州医科大学附属医院急诊重症医学科2019年12月—2020年1...目的探讨慢性阻塞性肺疾病急性加重(AECOPD)患者以肺部感染控制窗(PIC-W)为切换点撤机序贯经鼻高流量湿化氧疗(HFNC)与序贯无创正压通气(NPPV)对炎症指标及预后的影响。方法选取徐州医科大学附属医院急诊重症医学科2019年12月—2020年12月收治的AECOPD有创机械通气患者70例,满足PIC窗后按随机数字表法分为HFNC组(n=35)和NPPV组(n=35),分别在常规治疗基础上予HFNC和NPPV序贯通气治疗。收集患者一般资料、拔管前24h最差APACHE II评分及SOFA评分;检测拔管24 h、72 h白细胞计数(WBC)、超敏C反应蛋白(CRP)、降钙素原(PCT);观察两组拔管后2 h、24 h、72 h氧合指数、动脉血PCO_(2)以及生理指标;记录患者不同时间点呼吸困难评分;统计临床结局/并发症相关指标(拔管后HFNC治疗时间及NPPV治疗时间、院内感染发生率、再插管率、ICU住院时间、总住院时间、28 d病死率)。结果与拔管前相比,两组拔管后24 h CRP、PCT及72h WBC、CRP、PCT较拔管前下降,拔管后72 h HFNC组WBC、CRP、PCT明显低于NPPV组,差异有统计学意义(P<0.05);与拔管前相比,两组拔管后72 h氧合指数均明显改善,PaCO_(2)明显下降,差异有统计学意义(P<0.05);两组拔管后72 h RR及HR均较拔管前降低,而HFNC组拔管后72 h RR低于NPPV组,差异有统计学意义(P<0.05);不同时间点HFNC组患者呼吸困难评分均低于NPPV组;HFNC组治疗时间、院内感染发生率均低于NPPV组,差异有统计学意义(P<0.05);两组再插管率、28 d病死率,ICU住院时间和总住院时间比较差异无统计学意义(P>0.05)。结论AECOPD患者以PIC-W为撤机切换点序贯HFNC或NPPV均能提高氧合指数,降低PaCO_(2)。HFNC较NPPV能够减少PCT、CRP等炎性因子释放,降低患者呼吸频率,改善患者呼吸困难,缩短无创治疗时间并降低院内感染发生率,可应用于AECOPD撤机患者。展开更多
文摘BACKGROUND:Early withdrawal of invasive mechanical ventilation(IMV) followed by noninvasive MV(NIMV) is a new strategy for changing modes of treatment in patients with acute exacerbations of chronic obstructive pulmonary disease(AECOPD) with acute respiratory failure(ARF).Using pulmonary infection control window(PIC window) as the switch point for transferring from invasive to noninvasive MV,the time for early extubation can be more accurately judged,and therapy efficacy can be improved.This study aimed to prospectively investigate the clinical effectiveness of fiberoptic bronchscopy(FOB) in patients with AECOPD during sequential weaning of invasive-noninvasive MV.METHODS:Since July 2006 to January 2011,106 AECOPD patients with ARF were treated with comprehensive medication and IMV after hospitalization.Patients were randomly divided into two groups according to whether fiberoptic bronchoscope is used(group A,n=54) or not(group B,n=52) during sequential weaning from invasive to noninvasive MV.In group A,for sputum suction and bronchoalveolar lavage(BAL),a fiberoptic bronchoscope was put into the airway from the outside of an endotracheal tube,which was accompanied with uninterrupted use of a ventilator.After achieving PIC window,patients of both groups changed to NIMV mode,and weaned from ventilation.The following listed indices were used to compare between the groups after treatment:1) the occurrence time of PIC,the duration of MV,the length of ICU stay,the success rate of weaning from MV for the first time,the rate of reventilatJon and the occurrence rate of ventilator-associated pneumonia(VAP);2) the convenience and safety of FOB manipulation.The results were compared using Student's f test and the Chi-square test.RESULTS:The occurrence time of PIC was(5.01 ±1.49) d,(5.87±1.87) d in groups A and B,respectively(P<0.05);the duration of MV was(6.98±1.84) d,(8.69±2.41) d in groups A and B,respectively(P<0.01);the length of ICU stay was(9.25±1.84) d,(11.10±2.63) d in groups A and B,respectively(P<0.01);the su
文摘目的探讨慢性阻塞性肺疾病急性加重(AECOPD)患者以肺部感染控制窗(PIC-W)为切换点撤机序贯经鼻高流量湿化氧疗(HFNC)与序贯无创正压通气(NPPV)对炎症指标及预后的影响。方法选取徐州医科大学附属医院急诊重症医学科2019年12月—2020年12月收治的AECOPD有创机械通气患者70例,满足PIC窗后按随机数字表法分为HFNC组(n=35)和NPPV组(n=35),分别在常规治疗基础上予HFNC和NPPV序贯通气治疗。收集患者一般资料、拔管前24h最差APACHE II评分及SOFA评分;检测拔管24 h、72 h白细胞计数(WBC)、超敏C反应蛋白(CRP)、降钙素原(PCT);观察两组拔管后2 h、24 h、72 h氧合指数、动脉血PCO_(2)以及生理指标;记录患者不同时间点呼吸困难评分;统计临床结局/并发症相关指标(拔管后HFNC治疗时间及NPPV治疗时间、院内感染发生率、再插管率、ICU住院时间、总住院时间、28 d病死率)。结果与拔管前相比,两组拔管后24 h CRP、PCT及72h WBC、CRP、PCT较拔管前下降,拔管后72 h HFNC组WBC、CRP、PCT明显低于NPPV组,差异有统计学意义(P<0.05);与拔管前相比,两组拔管后72 h氧合指数均明显改善,PaCO_(2)明显下降,差异有统计学意义(P<0.05);两组拔管后72 h RR及HR均较拔管前降低,而HFNC组拔管后72 h RR低于NPPV组,差异有统计学意义(P<0.05);不同时间点HFNC组患者呼吸困难评分均低于NPPV组;HFNC组治疗时间、院内感染发生率均低于NPPV组,差异有统计学意义(P<0.05);两组再插管率、28 d病死率,ICU住院时间和总住院时间比较差异无统计学意义(P>0.05)。结论AECOPD患者以PIC-W为撤机切换点序贯HFNC或NPPV均能提高氧合指数,降低PaCO_(2)。HFNC较NPPV能够减少PCT、CRP等炎性因子释放,降低患者呼吸频率,改善患者呼吸困难,缩短无创治疗时间并降低院内感染发生率,可应用于AECOPD撤机患者。
