Construct and concurrent validity of the Hopkins Verbal Learning Test-revised.
A M Shapiro, R H Benedict, D Schretlen...
https://pubmed.ncbi.nlm.nih.gov/10726605/Actively Recruiting
Led by University of California, San Diego · Updated on 2025-02-06
20
Participants Needed
1
Research Sites
8 weeks
Total Duration
Decreased blood flow to the brain, caused by carotid artery disease, can lead to reduced cognitive function. Researchers are evaluating how carotid stenosis and brain hypoperfusion affect neurocognitive performance. This study also investigates whether inflammation markers in the blood relate to cognitive changes before and after carotid artery stenting. The research is designed as a pilot study involving 20 patients meeting specific carotid stenosis criteria. Participants will undergo carotid artery stenting and have neurocognitive testing at two time points before the procedure 2 months and 1 month prior and two time points after the procedure 1 month and 2 months post-stenting. Blood samples will be collected before and after stenting to measure inflammatory biomarkers. Magnetic resonance angiography scans will be done one month before and two months after the intervention to assess cerebral blood flow changes. During the study, participants will complete various neurocognitive tests covering memory, executive function, attention, language, visuospatial abilities, global cognition, premorbid intelligence, and mood. Blood tests will measure markers linked to inflammation and endothelial activation. Researchers will analyze these data alongside clinical factors to understand cognitive changes related to carotid intervention. The total study participation includes pre- and post-intervention assessments over approximately four months.
CONDITIONS
Assessing Neurocognition After Cerebrovascular Intervention
A
Alexander Khalessi, MD
A
ARVIN WALI, BA, MAS
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University of California, San Diego
Lead Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Carotid Artery Stenting | Medical Management (No Stenting at Study Entry) |
|---|---|---|
| What it is | Patients undergo carotid artery stenting for moderate-to-severe carotid stenosis, combined with peri-procedural neurocognitive testing and measurement of inflammation biomarkers. | Patients do not receive carotid stenting at study entry, but are managed according to standard medical care for carotid stenosis and monitored with the same neurocognitive and biomarker procedures as the intervention group. |
| Role in trial | Assigned to carotid stenting intervention and observed for neurocognitive changes post-procedure. | Serves as the active comparison group managed medically without immediate stenting, receiving identical neurocognitive and biomarker evaluation. |
| Primary use | Evaluates whether carotid stenting impacts neurocognitive function and changes in inflammatory biomarkers in patients with significant carotid artery disease. | Assesses neurocognitive function and inflammatory biomarker changes during standard medical management for carotid stenosis, serving as a non-stenting reference. |
| How it is given or performed | Carotid stenting is performed according to protocol after baseline neurocognitive testing. Blood samples for inflammatory biomarkers are collected post-procedure. | Carotid stenting is not performed at study entry. Patients undergo neurocognitive assessment and biomarker testing on the same schedule as the intervention group. |
| Evidence status | Some studies indicate that carotid stenting may help improve cognitive function in suitable patients, though results vary and further research is ongoing. | Carotid atherosclerosis without intervention has been linked to ongoing cognitive decline and increased dementia risk in observational studies, but patients may remain stable with optimal management. |
| Important limitations | Available evidence on cognitive improvement after stenting is mixed, and gains may not be universal nor sustained. Risks of procedural complications must be considered. Long-term cognitive effects are not fully established. | Progression of carotid atherosclerosis without intervention can affect cognition, and the degree of benefit from medical management alone remains uncertain. Some patients may require intervention later. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
You may qualify if you...
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 to 2 visits for eligibility assessment
Duration - 2 months
Participants undergo neurocognitive testing and biomarker blood draws at 2 time points before carotid artery stenting to serve as control measures.
2 visits (in-person) for assessments 1 and 2 months before intervention
Duration - 1 day
Participants undergo the carotid artery stenting procedure for carotid stenosis.
1 visit (in-person) for the stenting procedure
Duration - 2 months
Participants undergo neurocognitive testing, biomarker blood draws, and neuroimaging at 1 and 2 months after carotid artery stenting to assess changes following intervention.
2 visits (in-person) for assessments 1 and 2 months after intervention
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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https://pubmed.ncbi.nlm.nih.gov/21943640/University of California, San Diego
Lead Sponsor