Comparison of 3 Techniques for Blood Pressure Measurements During Interventional Neuroradiology Procedures

Study Overview
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Brief Summary
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Some observational studies demonstrated that hypotension was associated with post-operative morbidity. During neuroradiological procedures, cerebral perfusion pressure should be cautiously maintained and hypertension should also be avoided. So, a precise arterial pressure measurement is needed during this procedures. A continuous monitoring of arterial pressure needed the placement of an arterial catheter in radial artery. The placement of this catheter might be long, difficult and incompatible with emergency neuroradiological procedure (such as thrombectomy). Then, this invasive technique is associated with several minor and major side effects such as: pain, infection, thrombosis, hematoma. The Clearsight®, commercialized by Edwards Life Science Company®, is a non invasive device which mesure continuously arterial pressure with Volume-Clamp method. In operating room, some studies found a good accuracy between Clearsight® and other invasive monitoring system. There is no description of the use of Clearsight® during neuroradiological procedures. The investigators hypothesized that Clearsight® measurement of arterial pressure are concordant with arterial pressure measure with the placement of an arterial catheter. The investigators also plan to evaluate accuracy of intermittent non invasive pressure measurement with traditional cuff.

Official Title
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Comparison of 3 Techniques for Blood Pressure Measurements During Interventional Neuroradiology Procedures

Conditions
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Blood Pressure

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult patients (Age > 18 years old) Elective or emergent neuroradiological procedure under general or local anesthesia for : Endovascular treatment of cerebral aneurysms / arteriovenous malformation, Thrombectomy, Arteriography, transluminal balloon angioplasty for vasospasm Placement of arterial catheter for the measurement of continuous arterial pressure Exclusion Criteria: Contraindication of placement of arterial catheter or digital cuff (Clearsight) such as: Reynaud syndrome, Buerger syndrome Pregnant women Refusal

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Systolic arterial blood pressure (mmHg) | The main objective of this study is to evaluate concordance of systolic arterial pressure pressure (in mmHg) measurement between invasive (arterial catheter) and non invasive technique (Clearsight©) | During neuroradiological procedure | 
| Diastolic arterial blood pressure (mmHg) | The main objective of this study is to evaluate concordance of diastolic arterial pressure pressure (in mmHg) measurement between invasive (arterial catheter) and non invasive technique (Clearsight©) | During neuroradiological procedure | 
| Mean arterial blood pressure (mmHg) | The main objective of this study is to evaluate concordance of mean arterial pressure pressure (in mmHg) measurement between invasive (arterial catheter) and non invasive technique (Clearsight©) | During neuroradiological procedure | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Systolic arterial blood pressure (mmHg) | The main objective of this study is to evaluate concordance of systolic arterial pressure pressure (in mmHg) measurement between invasive (arterial catheter) and non invasive technique (classical harm cuff) | During neuroradiological procedure | 
| Diastolic arterial blood pressure (mmHg) | The main objective of this study is to evaluate concordance of diastolic arterial pressure pressure (in mmHg) measurement between invasive (arterial catheter) and non invasive technique (classical harm cuff) | During neuroradiological procedure | 
| Mean arterial blood pressure (mmHg) | The main objective of this study is to evaluate concordance of mean arterial pressure pressure (in mmHg) measurement between invasive (arterial catheter) and non invasive technique (classical harm cuff) | During neuroradiological procedure |