Electroencephalography and prognosis in stroke patients.

Abstract

Electroencephalography (EEG) and its relationship to prognosis were studied in 105 patients with cerebrovascular disease in the acute to subacute stages. Twenty cases had normal EEG, and most of them recovered well. Fifty-five cases had mildly to moderately abnormal EEG with focal asymmetric or slow waves in the unilateral hemisphere. Among them, 41 cases (75%) recovered to the extent of being capable of independent walking, 38 cases (69%) recovered sufficiently to engage in independent activities of daily livings (ADL) and 42 cases (76%) returned home. On the other hand 30 cases who had severely abnormal EEG with diffuse slow waves in the unilateral or bilateral hemispheres showed a poor prognosis. Among them, 18 cases (60%) were confined to bed, 20 cases (69%) remained in totally dependent ADL, and 4 cases (13%) died. Thus, EEG is shown to reflect well functional recovery in stroke patients.

Quantitative EEG Data and Comprehensive ADL (Activities of Daily Living) Evaluation of Stroke Survivors Residing in the Community.

“…There have been only a few studies investigating the relationship between EEG abnormalities and ADL recovery in stroke patients (Kitamura et al, 1998). Giaquinto et al (1994) reported that an EEG recorded in the weeks immediately after a stroke was not predictive of the patient's ADL recovery.…”

“…Giaquinto et al (1994) reported that an EEG recorded in the weeks immediately after a stroke was not predictive of the patient's ADL recovery. In another study, EEG findings and their relationship to prognosis were studied in the acute to subacute stage, revealing severely abnormal EEG with diffuse slow waves to be associated with a poor prognosis which suggested that EEG findings reflect functional recovery in stroke patients (Kitamura et al, 1998). There have been few studies investigating the relationship between quantitative EEG in stroke survivors residing at home and comprehensive ADL assessment.…”