2010
DOI: 10.2176/nmc.50.1099
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Cerebral Hyperperfusion Syndrome Associated With Non-convulsive Status Epilepticus Following Superficial Temporal Artery-Middle Cerebral Artery Anastomosis -Case Report-

Abstract: A 77-year-old man developed cerebral hyperperfusion syndrome with temporal deterioration of consciousness and worsening of left hemiparesis on the 6 th postoperative day following superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis for right M 1 occlusion. Electroencephalography (EEG) revealed frequent ictal discharges in the right hemisphere, although convulsive seizures were not apparent. Administration of anticonvulsants was performed based on the diagnosis of non-convulsive status epil… Show more

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Cited by 12 publications
(17 citation statements)
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“…Although CBF evaluation could not be performed at that time based on the diagnosis of CHS, stricter blood pressure control (systolic blood pressure of 潞120 mmHg) was continued and a free radical scavenger (edaravone) was given in accordance with previous reports. 10,26) On postoperative day 5, the patient became well orientated. Technetium-99m ethyl-cysteinate dimer ( 99m Tc-ECD) SPECT on postoperative day 6 still showed slightly increased perfusion in the right MCA territory (Fig.…”
Section: Resultsmentioning
confidence: 93%
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“…Although CBF evaluation could not be performed at that time based on the diagnosis of CHS, stricter blood pressure control (systolic blood pressure of 潞120 mmHg) was continued and a free radical scavenger (edaravone) was given in accordance with previous reports. 10,26) On postoperative day 5, the patient became well orientated. Technetium-99m ethyl-cysteinate dimer ( 99m Tc-ECD) SPECT on postoperative day 6 still showed slightly increased perfusion in the right MCA territory (Fig.…”
Section: Resultsmentioning
confidence: 93%
“…1G). Ultrasonography of the STA was performed on postoperative day 6, according to previous reports, 1,10) which demonstrated no increase in the peak flow velocity of the left STA in the systolic period (left STA: 107.0 cm/sec, right STA: 97.7 cm/sec), although a marked increase in the peak flow velocity of the left STA was noted in the end-diastolic period (left STA: 27.5 cm/sec, right STA: 11.8 cm/sec).…”
Section: Resultsmentioning
confidence: 99%
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“…Although whether seizures or delayed hyperperfusion were the initial phenomenon cannot be determined, hyperperfusion has been shown to be the major factor in NCSE development. 13,27) The possible pathophysiological mechanisms of NCSE in our 4 cases are summarized in Table 1. The 4 patients presented with epileptogenic lesions and additional factors, so the development of perioperative NCSE was multifactorial.…”
Section: Discussionmentioning
confidence: 99%
“…This case was previously reported, 13) so only a brief description of the clinical course and long-term period observation is given. EEG revealed frequent ictal discharges (rhythmic slow waves originated from the right temporo-posterior region posterior to the anastomosis site) in the right hemisphere.…”
Section: Casementioning
confidence: 99%