Heart Rate Variability as a Predictor of Ischemic Heart Disease

Study Overview
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Brief Summary
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Identification of patients who are at highest risk for heart attack is an important task for emergency medicine physicians. Currently, physicians use a variety of different scoring systems to stratify their risk for having a heart attack. Heart rate variability (HRV) is a measure derived from noninvasive cardiac monitoring. This data is collected from a simple, non-invasive chest strap during a 10-minute recording session. The purpose of this proposal is to collect heart rate variability data on patients admitted to the emergency department with chest pain. The intent is to measure the association between heart rate variability and the various risk stratification scoring systems for chest pain.

Detailed Description
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Identification of patients who are at highest risk for heart attack is an important task for emergency medicine physicians. Currently, physicians use a variety of different scoring systems to stratify their risk for having a heart attack. Heart rate variability (HRV) is a measure derived from noninvasive cardiac monitoring. This data is collected from a simple, non-invasive chest strap during a 10-minute recording session. The purpose of this proposal is to collect heart rate variability data on patients admitted to the emergency department with chest pain. The intent is to measure the association between heart rate variability and the various risk stratification scoring systems for chest pain. The investigators propose to enroll patients admitted to the emergency department with chest pain. In addition to HRV data, clinical risk factors will be obtained, using validated clinical risk scoring systems. The team will follow patient's clinical course in order to include information about the determined cause of chest pain. The goal is to understand how HRV can augment common risk stratification scoring systems for patient presenting to the ED with chest pain.

Official Title
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Heart Rate Variability as a Predictor of Ischemic Heart Disease

Conditions
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Acute Coronary Syndrome

Intervention / Treatment
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* Other: Heart rate variability


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Chest pain in ED Exclusion Criteria: STEMI Prisoners Pregnant women Unable to consent

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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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Chest pain patients<br>All patients who present to the ED with chest pain. | Other: Heart rate variability<br>* All patients have a 10-minute recording analyzed for indices of heart rate variability.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Major adverse cardiac events |  | 30 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| HEART score |  | 1 day | 
| Coronary heart disease risk factors |  | 1 day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Heart rate variability