Clinical Trials Logo

Clinical Trial Summary

The purpose of this study is to use a wire with a Doppler tip to measure blood flow in vessels in the brain and determine hemodynamic factors associated with treatment success or failure. Many neurological diseases cause abnormal blood flow in the brain in specific vessels. The special wire used in this study is place into brain blood vessels during standard of care procedure to treat such diseases, and blood flow parameters (such as velocity and pressure) are measured to gain better understanding of these neurological diseases.


Clinical Trial Description

Current treatments of cerebral aneurysms are imperfect, and aneurysmal hemodynamics is an important factor in treatment failure. The identification of hemodynamic factors that influence treatment success could predict outcome. Published studies show that the hemodynamic environment of aneurysms changes after treatment, and there is limited retrospective evidence that the degree of change affects treatment success. However, previous hemodynamic calculations did not have access to patient-specific measurements of blood flow, which substantially reduced their accuracy. In addition, no prospective studies of the predictive value of post-treatment aneurysm hemodynamics have been done.

Methods: Prospectively test new aneurysm patients for hemodynamic predictors of treatment outcome based upon the hypothesis long-term aneurysm treatment outcome can be prospectively predicted by measuring the immediate hemodynamic effects of aneurysm treatment with novel patient-specific modeling techniques. Task 1: In a new cohort of patients undergoing aneurysm treatment, the investigators will again use Doppler guidewire measurements to create patient-specific hemodynamic models of treatment effects. By prospectively applying the knowledge of crucial hemodynamic changes the investigators will use immediate post-treatment hemodynamics to predict long-term treatment outcome. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03145701
Study type Observational
Source University of Washington
Contact
Status Completed
Phase
Start date June 1, 2020
Completion date June 1, 2020

See also
  Status Clinical Trial Phase
Not yet recruiting NCT06235619 - Arch Size Study for Anatomical Variations
Not yet recruiting NCT00905931 - Lycopene Following Aneurysmal Subarachnoid Haemorrhage Phase 2
Completed NCT01178710 - Effect of Simvastatin on Cardiac Function N/A
Completed NCT00349908 - A Feasibility Study of the Cordis Neurovascular Self Expanding Stent System in Intracranial Arteries Phase 1
Recruiting NCT03285100 - The Effects of Discontinuation of Vitamin K Antagonists on the Rate of Elastin Degradation N/A
Recruiting NCT06189950 - Registration Trial of the Intracranial Visualized Stent for the Wide-necked Intracranial Aneurysms:REBRIDGE N/A
Active, not recruiting NCT04592185 - The Study of the Fenestrated Anaconda Device in the Treatment of Abdominal Aortic Aneurysms
Completed NCT01970605 - Silver Graft All Comers Registry
Completed NCT00282893 - Balloon Prophylaxis of Aneurysmal Vasospasm Phase 2
Active, not recruiting NCT00549380 - Clinical Study of Aneurysm Exclusion Phase 1
Completed NCT04598802 - COvera in BRAnch Registry
Completed NCT04246125 - Patient Skin Dose in Interventional Radiology
Recruiting NCT05829746 - PROSPECTIVE, MULTI-CENTER, OPEN-LABEL, SINGLE-ARM REGISTRATION TRIAL OF THE TUBRIDGE FOR THE TREATMENT OF WIDE-NECKED SMALL AND MEDIUM-SIZED INTRACRANIAL ANEURYSMS N/A
Completed NCT03242343 - VasQ External Support for Arteriovenous Fistula N/A
Recruiting NCT02878967 - Standardized Long Term Follow-up of Patients After Endovascular Embolization of a Brain Aneurysm
Active, not recruiting NCT02345005 - Iliac Branch Excluder ReGistry (IceBERG)
Recruiting NCT02167997 - EffectiveNess and SAfety of Small ANeurysm COiling Trial N/A
Recruiting NCT00549016 - Clinical Study of Aneurysm Exclusion N/A
Completed NCT02848612 - Evaluation of the Amiens University Hospital Neuroradiology Anticoagulation Protocol
Enrolling by invitation NCT04269447 - Prospective Aortic Biobank of POP-STAR