The Predictive Value of Multimodal Brain Monitoring for Perioperative Stroke in Cardiac Surgery Patients

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

369 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-10-01

Study Completion Date

2028-12-31

Brief Summary

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Postoperative stroke following cardiac surgery is associated with a ninefold increase in mortality risk compared to patients without stroke. Perioperative monitoring in cardiac surgery involves a range of complex and diverse techniques, presenting significant challenges for anesthetic management. Multimodal brain monitoring technology offers a novel approach to cerebral protection during the perioperative period of cardiac surgery by integrating hemodynamic parameters, autonomic nervous responses, cerebral oxygen saturation and indices, electroencephalographic activity, and cerebral blood flow velocity. Therefore, this study aims to evaluate the comprehensive early-warning efficacy of multimodal brain monitoring for perioperative stroke in cardiac surgery patients, determine the cumulative incidence of perioperative stroke-including covert stroke-and provide a new theoretical basis for optimizing cerebral protection strategies in cardiac surgery.

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Detailed Description

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Conditions

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Multimodal Monitoring Perioperative Stroke Covert Stroke

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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With stroke

Multimodal monitoring

Intervention Type DEVICE

Multimodal monitoring technology offers a novel approach to cerebral protection during the perioperative period of cardiac surgery by integrating hemodynamic parameters, autonomic nervous responses, cerebral oxygen saturation and indices, electroencephalographic activity, and cerebral blood flow velocity.

Without stroke

Multimodal monitoring

Intervention Type DEVICE

Multimodal monitoring technology offers a novel approach to cerebral protection during the perioperative period of cardiac surgery by integrating hemodynamic parameters, autonomic nervous responses, cerebral oxygen saturation and indices, electroencephalographic activity, and cerebral blood flow velocity.

Interventions

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Multimodal monitoring

Multimodal monitoring technology offers a novel approach to cerebral protection during the perioperative period of cardiac surgery by integrating hemodynamic parameters, autonomic nervous responses, cerebral oxygen saturation and indices, electroencephalographic activity, and cerebral blood flow velocity.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patients scheduled for elective cardiac surgery
* Presence of at least one of the following high-risk factors for stroke: a.Peripheral vascular disease (history of peripheral artery bypass grafting, amputation for ischemia, Ankle-Brachial Pressure Index \< 0.9, or history of abdominal aortic aneurysm repair).b.Cerebrovascular disease (history of stroke, transient ischemic attack, or carotid stenosis \>70%).c.Renal insufficiency (Glomerular Filtration Rate \< 60 mL/min/1.73m²).d.Diabetes mellitus (requiring oral hypoglycemic agents and/or insulin therapy).e.Urgent coronary artery bypass grafting (inpatient requiring revascularization due to acute coronary syndrome or myocardial infarction).f.Recent smoking history (within 1 year).g.Left ventricular ejection fraction \< 35%
* Provision of signed informed consent

Exclusion Criteria

* Contraindication to magnetic resonance imaging (e.g., claustrophobia, inability to lie flat for the duration of the study, presence of a pacemaker or implantable cardioverter-defibrillator, or other metallic implants)
* Inability to complete cognitive function assessments
* Patients with psychiatric, legal disabilities or under legal guardianship
* Life expectancy of less than 3 months
* Women who are lactating or pregnant
* Diagnosis of any type of dementia

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No