I describe a case of recurrent delirium associated with OSA in a morbi
dly obese man. Continuous positive airway pressure (CPAC) therapy alle
viated the OSA and delirium but was only partially effective in preven
ting relapses of delirium. Gastric stapling helped to secure considera
ble weight loss with reversal of OSA and no further recurrence of deli
rium. (C) 1998 Elsevier Science Inc.