Silent Cerebral Infarct, Stroke
Conditions
Keywords
stroke, cerebral embolic protection device
Brief summary
Stroke and silent cerebral infarction are a real risk with thoracic enodvascular aortic repair (TEVAR). The investigator propose to prospectively observational study with enrolment of all patients undergoing TEVAR for thoracic and thoracoabdominal conditions including aneurysmal degeneration, Type B dissection and acute aortic syndromes over a 24 month period, equating to a minimum of 20-30 patients per year. Patients undergoing juxtra-renal and infra-renal aortic stenting will form a control group.
Detailed description
TEVAR involves the insertion of a stent into the thoracic aorta to re-line it and prevent life-threatening haemorrhage from rupture, and ultimately death. The stent is inserted through a small cut in the femoral artery in the groin that is able to track to the desired location in the thoracic aorta over wires. The thoracic aorta and the branches it provides to supply the brain are diseased with atherosclerotic plaques and thrombus. The manipulation of wires and stents over these diseased locations can lead to small fragments breaking off and travelling to the brain to block the blood supply to areas of the brain (cerebral embolisation). Cerebral embolic protection devices (CEPDs) consist of filters that can be placed into the branches of the thoracic aorta that supply the brain(supra-aortic branches) before TEVAR and can capture and remove solid debris, preventing it from reaching the brain.
Interventions
DEVICESentinel and Spider
Dual filter and single filter
Sponsors
St Mary's Hospital, London
Imperial College London
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* All patients requiring TEVAR as decided upon by a multidisciplinary meeting
Exclusion criteria
* Contraindication to MRI scanning * Unable to give consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of brain injury assessed by Magnetic resonance imaging (MRI) test | Pre-operative and post-operative up to 6 months | Magnetic resonance imaging (MRI) of the brain is a safe and painless test that uses a magnetic field and radio waves to produce detailed images of the brain. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of embolic event | Intra-operative | Transcranial doppler monitoring of embolic events |
| Changes in neurocognition function | Pre-operative and post-operative up until 6 months | Neurocognitive tests to assess the changes in neurocognition function |
Countries
United Kingdom
Outcome results
None listed