Cerebral Oxygenation and Awareness During VT Ablation

Study Overview
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Brief Summary
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It is aimed to examine the effect of the decrease in blood pressure that occurs during the ventricular tachycardia ablation process on cerebral oxygenation and awareness. Patient's age, cardiac measurements (ejection fraction-EF), basal vital values, procedure time (especially activation and pacing mapping), and localization of the arrhythmia, may affect the NIRS and BIS response to blood pressure drop. In addition to the effects of patients' demographic information, cardiac capacity and procedure time on NIRS and BIS values (downtrend and duration), correlations of these values with other monitoring parameters (ETCO2 and SpO2) intended to be displayed.

Official Title
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Determining the Effect of Vital Parameters on Cerebral Oxygenation and Awareness During Ventricular Tachycardia Ablation

Conditions
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Cerebral Oxygenation

Intervention / Treatment
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* Procedure: NIRS during ventricular tachycardia ablation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients over the age of 18 Patients who will undergo VT ablation Patients who want to participate in the study Exclusion Criteria: Patients whose baseline values could not be obtained before induction Patients with severe neurological or psychiatric illness Patients who do not want to participate in the study

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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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| 1<br>patients under the age of 65 | Procedure: NIRS during ventricular tachycardia ablation<br>* NIRS: Near-infrared spectroscopy is a measurement technique that non-invasively and continuously monitors the balance between cerebral oxygen consumption and delivery. BIS: BIS is an electroencephalogram-derived parameter developed to monitor the hypnotic effects of anesthesia.<br>* Other names: BIS during ventricular tachycardia ablation;|
| 2<br>patients above the age of 65 | Procedure: NIRS during ventricular tachycardia ablation<br>* NIRS: Near-infrared spectroscopy is a measurement technique that non-invasively and continuously monitors the balance between cerebral oxygen consumption and delivery. BIS: BIS is an electroencephalogram-derived parameter developed to monitor the hypnotic effects of anesthesia.<br>* Other names: BIS during ventricular tachycardia ablation;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Near Infrared Spectrometer | cerebral oxygenation | perioperative (ventricular tachycardia ablation) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Bispectral Index | awareness | perioperative (ventricular tachycardia ablation) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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cerebral oxygenation, ventricular tachycardia ablation