Smartphone Twelve Lead Electrocardiogram Utility In ST-Elevation Myocardial Infarction (ST LEUIS)

Smartphone Twelve Lead Electrocardiogram Utility In ST-Elevation Myocardial Infarction (ST LEUIS Study)

The primary objective of this study is to determine if the Smartphone electrocardiogram (ECG) is an acceptable replacement for a standard ECG in the identification of ST Elevation Myocardial Infarction (STEMI).

Toward this objective, this study involves the following:

• Obtain simultaneous recordings of a standard 12-lead ECG and the iPhone "12-lead equivalent" ECG on patients presenting with chest pain in which the STEMI protocol was activated.
• Obtain simultaneous recordings of a standard 12-lead ECG and the iPhone "12-lead equivalent" ECG on patients presenting to the Emergency Department for evaluation of chest pain, not necessarily presenting with STEMI.
• Reading of ECGs (standard 12-lead and iPhone) by three independent cardiologists, who are blinded to the initial clinical ECG readings, the type of ECG equipment used, and the patient's clinical information.
• Assess the operational feasibility of using the Smartphone to obtain "12-lead equivalent" ECG recordings in patients suspected to have STEMI, and
• Determine the possibility of pooling the data obtained from this study with data from other institutions conducting identical studies, and developing a future IRB-approved protocol and statistical analysis plan to compare the sensitivity, specificity, positive predictive value and the negative predictive power of the iPhone ECG, using a paired standard 12-lead ECG as the gold standard.

There will be no therapeutic interventions. A single research-related procedure will be required, i.e. an iPhone ECG. Effort will be made to ensure that the performance of this procedure will not delay any treatment and/or diagnostic procedures that are part of usual or specialized care that the patient requires. Effort will be made to enroll 1 STEMI patient for every 2 non-STEMI patients.

Study Overview

• Status: Completed
• Conditions: ST Segment Elevation Myocardial Infarction

• Study Type: Observational
• Enrollment (Actual): 53

Contacts and Locations

Study Locations

• United States
  • Utah
    • Murray, Utah, United States, 84143
      • Intermountain Medical Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Male or female patients, >18 years old, who are seen for chest pain, and/or patients for whom the STEMI protocol has been activated, will be screened for this study.

Description

Inclusion Criteria:

• Male or female >= 18 years of age.
• Ability to understand and sign a written informed consent form, which must be obtained prior to initiation of any study procedures (patient or legally acceptable representative).
• Symptoms of chest pain upon presentation at the Intermountain Medical Center Emergency Department.

Exclusion Criteria:

• Inability or refusal of the patient and/or the patient's legally-acceptable representative to provide written informed consent for any reason.
• Other conditions that in the opinion of the Principal Investigator or Co-Investigator(s) may increase risk to the subject and/or compromise the quality of the clinical trial.

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Diagnosis differences	Determine the number of agreements in diagnoses (STEMI vs. non-STEMI) between the standard 12-lead ECG and the iPhone "12-lead equivalent" ECG.	1 day

Collaborators and Investigators

• Sponsor: Intermountain Health Care, Inc.

Study record dates

Study Major Dates

• Study Start: December 1, 2015
• Primary Completion (Actual): October 1, 2016

Study Registration Dates

• First Submitted: July 13, 2015
• First Submitted That Met QC Criteria: July 13, 2015
• First Posted (Estimate): July 15, 2015

Study Record Updates

• Last Update Posted (Actual): August 1, 2018
• Last Update Submitted That Met QC Criteria: July 31, 2018
• Last Verified: July 1, 2018

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Ischemia; Pathologic Processes; Necrosis; Myocardial Ischemia; Heart Diseases; Cardiovascular Diseases; Vascular Diseases; Myocardial Infarction; Infarction; ST Elevation Myocardial Infarction
• Other Study ID Numbers: 1040562