Oral Prednisolone in Severe Acute Exacerbation of Chronic Obstructive Pulmonary Disease (COPD)

Evaluation of systematic administration of oral prednisolone (1mg/Kg/day) as an add on therapy in Chronic Obstructive Pulmonary Disease (COPD) patients admitted to intensive care unit (ICU) for severe exacerbation of COPD. Patients with pneumonia are excluded. Randomization is stratified according to ventilatory support: non invasive or conventional ventilation.The major outcome is the ICU mortality rate in overall population and stratified according to ventilatory mode (noninvasive ventilation (NIV) versus conventional). Secondary outcomes are superinfection necessitating a new antibiotic course, Length of mechanical ventilation (MV) (and ventilatory free days), Length of ICU stay, The frequency of gastric bleeding episodes that of frequency of hyperglycemic episodes.