Mobile Phone Detection of Atrial Fibrillation

Completed

• Conditions: Atrial Fibrillation; Arrhythmia
• Interventions: Diagnostic Test: Smartphone seismographic recording

• Registration Number: NCT03274583
• Lead Sponsor: University of Turku

Brief Summary

The aim of this study is to evaluate the reliability of smartphone seismocardiographic detection of AF in comparison to the gold standard of continuous telemetry ECG recording.

Detailed Description

In the this case-control study, 300 patients being treated in the wards of Heart Center and Department of Acute Internal Medicine of Turku University Hospital in Turku, Finland between April and September 2017 were included in the study. Patients were assigned to two groups according to the prevalent heart rhythm (sinus rhythm or atrial fibrillation). A smartphone equipped with an inbuilt accelerometer and a gyroscope was placed on the patient's chest to obtain a seismocardiographic recording. Simultaneous telemetry electrocardiography was obtained to assess the reliability of seismographic rhythm recordings. Results will be analyzed to describe the specificity and sensitivity of the method.

Study Timeline

• Study Start: 2017-04-05
• Study First Submitted: 2017-09-04
• Study First Submitted QC: 2017-09-04
• Study First Posted: 2017-09-07
• Primary Completion: 2017-10-01
• Study Completion: 2017-11-01
• Status Verified: 2019-06
• Last Update Submitted: 2019-06-28
• Last Update Posted: 2019-07-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 300

Inclusion Criteria

Not provided

Exclusion Criteria

• ≤18 years of age
• paced rhythm
• cardioversion during preceding 7 days
• informed consent not signed

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Study Group	Smartphone seismographic recording	Patients being treated in the wards of Heart Center and Acute Internal Medicine of Turku University Hospital, Turku Finland between April and September 2017 with atrial fibrillation as the prevalent rhythm.

Primary Outcome Measures

Name	Time	Method
Sensitivity and specificity of seismocardiography in diagnosing atrial fibrillation	2017-2018

Trial Locations

Locations (1)

Turku University Hospital; 🇫🇮 Turku, Länsi-Suomen Lääni, Finland