Clinical trial NCT02305407: Neurocognitive and Radiological Assessments in Adult Moyamoya Undergoing Surgery
Official title: Neurocognitive and Radiological Assessments in Adult Patients With Moyamoya Disease Undergoing Surgical Revascularization
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Moyamoya Disease
Lead sponsor: Huashan Hospital
Sponsor class: OTHER
First posted: 2014-12-02
Enrollment: 80
Sex: ALL
Minimum age (years): 18
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: NON_RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Adult patients with moyamoya disease (MMD) are reported to suffer from considerable impairment of executive function/attention. Although reduced cerebrovascular reserve (CVR) in frontal areas has been detected by perfusion MRI and then confirmed to be associated with executive dysfunction in adult MMD, the structural and functional changes is still unclear with progression of executive dysfunction. Furthermore, it is very important to study the association between the neurocognitive and radiological improvement after surgical revascularization, so as to help detecting cerebral regions which are involved in executive deterioration or improvement after surgery. Then the investigators can determine whether these regions can be used as indicators to decide rational therapeutic schedule and timing of adult MMD with executive dysfunction.

Thus the aim of this study is to primarily find out the neuropsychological and radiological correlates in adult MMD, and then to quantitatively evaluate the effectiveness of surgical revascularization in prevention of executive dysfunction in adult MMD.

Detailed description: Previous studies of adult moyamoya disease (MMD) have revealed that vascular cognitive impairment (VCI) is the consequence of ischemic damage to dynamic factors such as cerebral hypoperfusion, rather than to cerebral gray matter. However, it is still unclear which regions are affected by MMD and how these regions respond to the progressive cognitive decline. In other way, the investigators need to detect spatial patterns in the brain activity of MMD in order to understand its pathophysiological nature.

Surgical revascularization has been accepted as the only effective form of treatment in preventing future ischemic episodes. However, its effectiveness in cognitive protection is still unknown. Thus, the investigators determine to quantitatively evaluate cognitive and radiological outcomes in adult MMD postoperatively and during follow-ups.

Eligibility criteria: Inclusion Criteria:

* Right-handed Chinese people aged over 18 years
* No evidence of recent or remote infarct in the cerebral cortical, basal ganglia, brainstem or cerebellum
* No evidence of recent or remote intracerebral hemorrhage
* Diagnosis confirmed by digital subtraction angiography (DSA) according to Suzuki scale
* No surgical intervention before recruitment
* Physically capable of cognitive testing
* Geographically accessible and reliable for follow-up.

Exclusion Criteria:

* Significant neurological diseases or psychiatric disorders that could affect cognition
* Other cerebrovascular diseases (such as atherosclerosis or vasculitides) likely to cause focal cerebral ischemia
* Concomitant cerebrovascular diseases (such as aneurysms or arteriovenous malformation) that need surgical intervention
* Severe systemic diseases
* Pregnant or perinatal stage women
* Any diseases likely to death within 2 yeas
* Taking drugs such as benzodiazepine clonazepam
* Any contraindications or allergy to aspirin
* Allergy to iodine or radiographic contrast media
* Past history of surgical revascularization
* Concurrent participation in any other experimental treatment trial
* Any condition that in the surgeon's judgment suggests the patient an unsuitable surgical candidate.

Primary outcomes:
measure: Neurocognitive outcomes at 3/6/12/24-month follow-up after surgical revascularization or conservative treatment.
timeFrame: 2 years
Secondary outcomes:
measure: The number of participants who suffer from all stroke or death during 30 days to 24 months
timeFrame: 24 months
measure: The number of participants who suffer from all kinds of adverse events related to surgery.
timeFrame: 30 days
measure: Postoperative neurocognitive outcomes before discharge.
timeFrame: average of 1 week after surgery
measure: Postoperative radiological outcomes before discharge.
timeFrame: average of 1 week after surgery
measure: The changes from baseline in modified Rankin scale (mRS) and national institutes of health stroke scale (NIHSS).
timeFrame: at 7 days, 30 days, 3/6/12/24 months
measure: The changes from baseline in single photon emission computed tomography (SPECT).
timeFrame: 2 years
measure: The changes from baseline in blood oxygen level-dependent functional magnetic resonance imaging (BOLD fMRI) during rest.
timeFrame: 2 years
Other outcomes:
Locations:
city: Shanghai
country: China
facility: Department of Neurosurgery, Huashan Hospital
state: Shanghai
Study officials:
affiliation: Department of Neurosurgery, Huashan Hospital, Fudan University
name: Yuxiang Gu, MD,PhD
role: STUDY_CHAIR
References:
citation: Su JB, Xi SD, Zhou SY, Zhang X, Jiang SH, Xu B, Chen L, Lei Y, Gao C, Gu YX. Microstructural damage pattern of vascular cognitive impairment: a comparison between moyamoya disease and cerebrovascular atherosclerotic disease. Neural Regen Res. 2019 May;14(5):858-867. doi: 10.4103/1673-5374.249234.