[http://antimicrobial.entlink.net/aao/Aao882/me.get?web.websections.show&AAO882_630]==Microbial infections==Local wound infections (superficial or deep-sided), urinary tract infections (caused by bladder catheter, inserted for surgery), and pneumonia (due to impaired breathing/coughing, caused by sedation and analgesics during the first few hours of recovery) may endanger the health of patients after surgery.