%0 Journal Article
%T Repercuss£¿o da press£¿o positiva expirat¨®ria final na press£¿o de perfus£¿o cerebral em pacientes adultos com acidente vascular hemorr¨¢gico
%A Lima
%A Wildberg Alencar
%A Campelo
%A Ant£¿nio Roberto Leite
%A Gomes
%A Rodrigo Lu¨ªs Mousinho
%A Brand£¿o
%A Daniella Cunha
%J Revista Brasileira de Terapia Intensiva
%D 2011
%I Associa??o de Medicina Intensiva Brasileira
%R 10.1590/S0103-507X2011000300006
%X positive intrathoracic pressure may cause hemodynamic changes, which can be transmitted to the cranial compartment, changing intracranial pressure and cerebral perfusion pressure. this can be increased when high positive end-expiratory pressure values are used. objective: to measure the impact of different positive end-expiratory pressure levels on intracranial pressure, cerebral perfusion pressure and mean blood pressure. method: this study was conducted in a neurological intensive care unit and included 25 adult hemorrhagic stroke patients who were mechanically ventilated on airway pressure control mode. patients were subjected to various positive end-expiratory values ranging between 0 and 14 cmh2o. the order of these values were randomized, and the variables were assessed five minutes after each new positive end-expiratory pressure level was initiated. results: incremental positive end-expiratory pressures led to increased intracranial pressure (p < 0.001), however, no statistically significant changes were observed in mean blood pressure or cerebral perfusion pressure. conclusion: in this population of patients with hemorrhagic stroke, positive end-expiratory pressure values up to 14 cmh2o did not alter cerebral perfusion pressure or mean blood pressure. increased intracranial pressures were noted, although these elevations were not clinically significant
%K intracranial pressure
%K positive-pressure respiration
%K stroke.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-507X2011000300006&lng=en&nrm=iso&tlng=en