• MICROEMBOLIC SIGNALS DETECTION DURING ROUTINE TRANSCRANIAL DOPPLER AFTER ACUTE SUBARACHNOID HEMORRHAGE

    M. De Lima Oliveira, M. Mendes Paschoal Junior, K. Almeida Lins, R. Carvalho De Nogueira, M. Krajnyk De Azevedo, E. Santos Junior, M. Jacobsen Teixeira, E. Bor-Seng-Shu
    Department of Neurology, University Hospital, University of São Paulo – São Paulo, Brazil

    Introduction: The cerebral vasospasm is considered one of the most common and serious complications of Subarachnoid hemorrhage (SAH) can be a cause of neurological ischemic transient or permanent, and contributes to increased rates of morbidity and mortality of patients. Previous studies suggested that intracranial aneurysms can act as sources of distal embolization. Spontaneous thrombus can be observed within the aneurysmal sac, presumably because of turbulence and slow flow. The aim of this study was to describe the detection of some MES during routine vasospasm monitoring by transcranial Doppler (TCD).

  • TRANSCRANIAL DOPPLER AND OXIMETRY TISSUE CATHETER MONITORING IN DIFFUSE BRAIN VASOSPASM

    M. De Lima Oliveira, S. Paulo Brasil Lima, M. Kranyk De Azevedo, E. Santos Junior, L. Peraza, F. Lacerda Brambilla, M. Jacobsen Teixeira, E. Bor-Seng-Shu
    Department of Neurology, University Hospital, University of São Paulo – São Paulo, Brazil

    Objective: Intracranial vasospasm is an important cause of brain ischemia when associated to subarachnoid hemorrhage. Multimodal monitoring can detect brain flow decrease and patients with high risk to develop brain ischemic lesions. TCD can detect and measure vasospasm intensity in the large intracranial arteries. Usually the oximetry catheter is implanted in the area most likely to occur vasospasm, which is near of brain bleeding. It can measure brain tissue oxygen (PtiO2) in areas with oligoemia associated to vasospasm. They give support to plane treatment to improve brain blood flow in patients suffering brain vasospasm.