Eikenella corrodens and Porphyromonas asaccharolytica pleural empyema in a diabetic patient with obstructive sleep apnea syndrome on noninvasive ventilation [Empiema pleural por Eikenella corrodens e Porphyromonas asaccharolytica numa doente diabética sob ventilação não invasiva por síndrome de apneia obstrutiva do sono]

Eikenella corrodens is a normal inhabitant of the human oral cavity and gastrointestinal and genitourinary tracts. pleuropulmonary infections by this microorganism are uncommon. pulmonary aspiration is a chief predisposing condition. although the outcome is usually favorable,its distinctive antibiotic sensitivity pattern makes bacterial identification an important feature in dealing with this infection. the authors report a case of pleural empyema caused by co-infection with eikenella corrodens and porphyromonas asaccharolytica,in an immunocompetent diabetic patient with obstructive sleep apnea syndrome,followed by a discussion on the role of noninvasive ventilation in the development of this infection. © 2012 sociedade portuguesa de pneumologia.