[Sonographic patterns by transcranial Doppler in acute cerebral infarction].
OBJECTIVE
To evaluate the correlations between the patterns of Transcranial Doppler (TCD) and the extent and pathophysiologic mechanism of the ischemia as well as the prognosis of patients with acute ischemic stroke.


METHODS
37 patients with ischemic stroke within the first 24 hours of evolution were examined using TCD, neuroimaging, and neurologic state at admission and disarcharge. The TCDs were grouped into four categories: normal, stenotic, hemispheric asymmetry and trunk occlusion of the middle cerebral artery (MCA); they were correlated with the extent of brain damage, pathophysiologic mechanism of the stroke and prognosis.


RESULTS
Normal TCD was highly predictive of lacunar infarction secondary to small vassels disease (p = 0.01) and good recovery (p < 0.02). The stenotic and hemispheric asymmetry patterns correlated highly with a cortical infarctions (p < 0.05) and a cardioembolic mechanism. The occlusion of the MCA was highly correlated with a large infarction (p < 0.01) and with poor outcome and death (p = 0.004).


CONCLUSIONS
Our data show that TCD has a value in predicting the prognosis and the severity, location and pathophysiologic mechanism of cerebral strokes.
Arauz-Góngora
A
A
Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, México D.F.
Cantú-Brito
C
C
Barinagarrementería-Aldatz
F
F
D002545:Brain Ischemia / Q000000981:diagnostic imaging*; D006801:Humans; D011379:Prognosis; D017585:Ultrasonography, Doppler, Transcranial
Patrones sonográficos por Doppler transcraneal en el infarto cerebral agudo.