Hol, J.W.

patient group anesthesia postoperative surgery level craniotomy plasma study signi anesthesia group stress reference group preoperative signi ficantly epidural ficant fference analgesia procedure cytokine reference ficantly pneumonia postoperative pneumonia table plasma levels perioperative anxiety score tryptophan acid levels di fferences epidural analgesia glutamate brain result craniotomy group e ffect flammatory operation propensity disease outcome anesthesiology value response complication tumor glutamine 30- day mortality function-controlled mortality function effect ratio craniotomy patients concentration figure fication change increase propensity score e ffects phe /tyr ratio volume phenylalanine postoperatively analysis arginine number journal classi blood sample factor piritramide citrulline acid profile characteristic