A Smartphone APPlication for the Transmission of ECGs in the Management of Patients Presenting With Suspected Heart Attacks in the Hamilton, Niagara, Haldimand, and Brant Area

Overview

The delivery of timely and appropriate care is crucial for patients with heart attacks. Blocked arteries need immediate intervention to restore blood flow. However, the intervention to open the artery is only available in large, regional hospitals. There are only 18 such hospitals across Ontario. Patients with heart attacks in smaller hospitals, where the majority of patients present, require transfer for specialized services. The smartphone application being evaluated in this study is meant to help with communication between doctors to arrange transfer of such patients. The current model for communication is based on fax machines or non-secure text messages. Additionally, these are not easily accessible for most physicians, so decisions to transfer patients may be based on incomplete information. Unnecessary transfer, treatments, and procedures expose patients and healthcare providers to undue risk. Smartphone technology is well integrated into clinical practice and widely accessible. The proposed solution being tested is secure and leverages the accessibility of smartphones. Emergency physicians can use this to quickly, securely, and accurately transmit information ensuring faster and appropriate decision making for transfers.

A multi-centre, mixed methods observational study focused on Emergency Department physicians who care for patients presenting to a regional partner hospital in the Hamilton, Niagara, Haldimand, Brant Local Health Integration Network (Canada) with suspected ST-segment Elevation Myocardial Infarction (STEMI). There are approximately 700 STEMI patients per year transferred and treated in the Hamilton General Hospital Cardiac Catheterization Lab. As this study is expected to run over the course of one year, it is anticipated that aggregate patient level data on approximately 700 STEMI patients in the STEMI database will be reviewed. The study will use a pre-post design to evaluate the implementation and use of a clinical intervention, the SMART AMI App. The study will use quantitative registry data already being collected via the ongoing SMART-AMI project (e.g., STEMI database), utilization of data collected from the SMART AMI App, and quantitative and qualitative survey data from participating physicians. As the intervention in this study is a change in process to improve communication between Emergency Department physicians and Interventional Cardiologists, the study does not directly involve patients and individual patient consent will not be required. No new patient data will be collected for the purposes of this study. Descriptive quantitative analysis and thematic qualitative analysis of survey results will be conducted. Descriptive and inferential statistics will be used for quantitative data derived from patient charts/registry and physician surveys. Continuous variables will be described using mean ± standard deviation. An interrupted time series analysis will be used to compare trends on time-based quality of care indicators. Categorical variables, such as false activation, will be described as frequencies and compared using a Fisher exact test or chi-square test. Funding for this study was provided by the Hamilton Academic Health Sciences Organization (HAHSO) #HAH-21-015.