Summary
In neurosurgical patients autoregulation of cerebral perfusion is often lost. Therefore, a sudden increase in blood pressure may lead to an increase in cerebral blood flow cerebral oedema may follow. The influence of labetalol, a new alpha- and beta-adrenoceptor blocking agent, on intracranial pressure and cerebral perfusion pressure was investigated in dogs without and with mass lesions. During hypotension with labetalol the intracranial pressure remained unchanged and the cerebral perfusion pressure decreased to the same extent as mean arterial pressure (30%). Labetalol seems to be suitable to treat hypertension perioperatively in neurosurgical patients but it is not a suitable drug for induced hypotension.
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Puchstein, C., Van Aken, H., Hidding, J. et al. Treatment of hypertension with labetalol in neurosurgical practice. Acta neurochir 67, 283–290 (1983). https://doi.org/10.1007/BF01401430
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DOI: https://doi.org/10.1007/BF01401430