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- W2011871753 abstract "Background Rapid emergence from anesthesia makes desflurane an attractive choice as an anesthetic for patients having neurosurgery. However, the data on the effect of desflurane on intracranial pressure in humans are still limited and inconclusive. The authors hypothesized that isoflurane and desflurane increase intracranial pressure compared with propofol. Methods Anesthesia was induced with intravenous fentanyl and propofol in 30 patients having transsphenoidal hypophysectomy with no evidence of mass effect, and it was maintained with 70% nitrous oxide in oxygen and a continuous 100 micrograms.kg-2.min-1 infusion of propofol. Patients were assigned to three groups randomized to receive only continued propofol infusion (n = 10), desflurane (n = 10), or isoflurane (n = 10) for 20 min. During the 20-min study period, each patient in the desflurane and isoflurane groups received, in random order, two concentrations (0.5 minimum alveolar concentration [MAC] and 1.0 MAC end-tidal) of desflurane or isoflurane for 10 min each. Lumbar cerebrospinal fluid (CSF) pressure, blood pressure, heart rate, and anesthetic concentrations were monitored continuously. Results Lumbar CSF pressure increased significantly in all patients receiving desflurane or isoflurane. Lumbar CSF pressure increased by 5 +/- 3 mmHg at 1-MAC concentrations of desflurane and by 4 +/- 2 mmHg at 1-MAC concentrations of isoflurane. Cerebral perfusion pressure decreased by 12 +/- 10 mmHg at 1-MAC concentrations of desflurane and by 15 +/- 10 mmHg at 1-MAC concentrations of isoflurane. Heart rate increased by 7 +/- 9 bpm with 0.5 MAC desflurane and by 8 +/- 7 bpm with 1.0 MAC desflurane, and by 5 +/- 11 bpm with 1.0 MAC isoflurane. Systolic blood pressure decreased in all but the patients receiving 1.0 MAC desflurane. To maintain blood pressure within predetermined limits, phenylephrine was administered to six of ten patients in the isoflurane group (range, 25 to 600 micrograms), two of ten patients in the desflurane group (range, 200 to 500 micrograms), and in no patients in the propofol group. Lumbar CSF pressure, heart rate, and systolic blood pressure did not change in the propofol group. Conclusion Desflurane and isoflurane, at 0.5 and 1.0 MAC, increase lumbar CSF pressure." @default.
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- W2011871753 date "1996-11-01" @default.
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- W2011871753 title "Desflurane and Isoflurane Increase Lumbar Cerebrospinal Fluid Pressure in Normocapnic Patients Undergoing Transsphenoidal Hypophysectomy" @default.
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- W2011871753 doi "https://doi.org/10.1097/00000542-199611000-00006" @default.
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