Abstract
Objective To investigate the factors related to the success of noninvasive ventilation in the treatment of conscious disturbance due to acute exacerbation of chronic obstructive pulmonary disease (AECOPD) complicated with respiratory failure.Methods Fifty-four patients with conscious disturbance due to AECOPD complicated with respiratory failure were selected in the study,that treated by BiPAP ventilation.They were divided into effective group and failure group according to the curative effect,clinical and physiological parameters were analyzed comparatively between two groups,multi-variable logistic regression analysis was used to find the predictive factors of the success in noninvasive ventilation.Results In stable phase,FEV1 ％ predicted was higher,PaCO2 values was lower significantly in patients in NIPPV failure group who also had a lower GCS compared with NIPPV success group.Multi-variable logistic analysis suggests statistical significance in GCS after 2 h ventilation.Conclusions The failure of NIPPV in patients with conscious disturbance due to AECOPD complicated with respiratory failure was influenced by GCS after 2 h ventilation. Key words: Chronic obstructive pulmonary disease; Respiratory failure; Noninvasive positive pressure ventilation
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