Causes of weaning failure in 58 patients receiving mechanical ventilation and related weaning strategies in intensive care unit

Abstract

Objective Analyzing the causes of weaning failure and summarizing related weaning strategies in intensive care unit (ICU), to promote the rate of weaning success. Methods The information of 58 patients suffering from weaning failure in ICU were investigated. Results Eighty-one unsuccessful weaning cases in all patients happened,including 73 cases of failured spontaneous breathing trial.The causes of failured spontaneous breathing trial were as follows, the question of nervous system accounted for 9.6% (8 cases), too large respiratory load for 71.2% (52 cases),insufficient function of circulation system for 13.7% (9 cases),and psychologic obstacle for 5.5%(6 cases).Eight patients were reintubated 48 hours after extubation because of aggravated primary disease,radical extubation,insufficient ablity of expectoration and severe delirium.By treating primary disease and adopting proper weaning strategies,55 patients weaned sucessfully.In 3 patients who could not wean from mechanical ventilation finally,2 were because of giving up treatment,another died of primary disease. Conclusions The causes of weaning failure are multiple. Weaning success bases on active primary disease treatment and proper weaning strategies.Meanwhile the respiratory function after extubation should be evaluated in time. Key words: Mechanical ventilation ; Weaning failure ;