Background: The upper limit of cerebrovascular pressure autoregulation (ULA) is inadequately characterized. We sought to delineate the ULA in a neonatal swine model.
Methods: Neonatal piglets with sham surgery (n = 9), interventricular fluid infusion (INF; n = 10), controlled cortical impact (CCI; n = 10), or impact + infusion (CCI + INF; n = 11) had intracranial pressure monitoring and bilateral cortical laser-Doppler flux recordings during arterial hypertension until lethality.
Background: The upper limit of cerebrovascular pressure autoregulation (ULA) is inadequately characterized.
Objective: To delineate the ULA in an infant swine model.
Methods: Neonatal piglets with sham surgery (n = 9), interventricular fluid infusion (INF) (n = 10), controlled cortical impact (CCI) (n = 10), or CCI + INF (n = 11) had intracranial pressure monitoring and bilateral cortical laser-Doppler flowmetry recordings during arterial hypertension to lethality using an aortic balloon catheter.