Yao Y, Lu Q, Jin LR, Zhou XQ, Huang Y, Xu WH. Real-time TCD-vEEG monitoring for neurovascular coupling in epilepsy.
Seizure 2015;
29:1-3. [PMID:
26076836 DOI:
10.1016/j.seizure.2015.03.002]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 03/01/2015] [Accepted: 03/06/2015] [Indexed: 10/23/2022] Open
Abstract
PURPOSE
Recently, a novel multi-model monitor has been available, which integrates real-time signals of transcranial Doppler (TCD) and video-EEG (vEEG) into one workstation. We sought to test the feasibility of this device in detecting neurovascular coupling in patients with epilepsy.
METHOD
Cerebral blood flow velocity (CBFV) of bilateral middle cerebral arteries and vEEG during seizure episodes were recorded simultaneously in 12 patients (age 17-58 years) with partial epilepsies. The correlations between vEEG and CBFV findings were analyzed.
RESULTS
Eleven seizure episodes were detected in 5 patients. Of them, bilateral CBFV increase with interhemispheric asymmetry was observed in 4 seizure episodes of 3 patients. EEG abnormalities preceded CBFV increase by 1-3s at the onset of a seizure. In a patient with bilateral middle cerebral artery stenosis, no apparent CBFV changes were detected during 2 of 3 seizure episodes. Another patient with previous frontal hemorrhage displayed CBFV increase without interhemispheric asymmetry during 4 seizure episodes.
CONCLUSION
It is feasible to evaluate neurovascular coupling with good temporal correlation in patients with frequent seizure episodes by real-time TCD-vEEG monitoring.
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