title: Symptomatic cerebral hyperperfusion on SPECT after indirect revascularization surgery for Moyamoya disease.
abstract: Six patients who experienced transient neurological deteriorations with no evidences of hemorrhage and infarction after encephaloduroarteriogaleosynangiosis for moyamoya disease were evaluated with semiquantitative analysis using brain perfusion SPECT. Postoperative transient neurological deteriorations topographically corresponded to hyperperfusion areas on SPECT. Cerebral blood flows of both the operated hemisphere and focal hyperperfusion area increased significantly after surgery (P=0.046 and 0.028, respectively), compared with the preoperative ones. Symptomatic cerebral hyperperfusion may occur transiently after indirect revascularization surgery for adult moyamoya disease. Further study is needed to clarify the exact mechanism of cerebral hyperperfusion after indirect surgery.
authors.affiliation: Department of Neurosurgery, Kangwon National University Hospital, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do, Korea.
authors.forename: Won-Sang
authors.initials: WS
authors.lastname: Cho
authors.forename: Ho-Young
authors.initials: HY
authors.lastname: Lee
authors.forename: Hyun-Seung
authors.initials: HS
authors.lastname: Kang
authors.forename: Jeong Eun
authors.initials: JE
authors.lastname: Kim
authors.forename: Jae Seung
authors.initials: JS
authors.lastname: Bang
authors.forename: Chang-Wan
authors.initials: CW
authors.lastname: Oh
mesh_terms: D000328:Adult; D002548:Cerebral Revascularization; D002560:Cerebrovascular Circulation / Q000502:physiology*; D006801:Humans; D009072:Moyamoya Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology* / Q000601:surgery; D011182:Postoperative Care; D015899:Tomography, Emission-Computed, Single-Photon