Assessment of the Clinical Efficacy of the Heart Spectrum Blood Pressure Monitor for Diagnosis of Atrial Fibrillation

Question: Is 12-lead electrocardiography (ECG) the most accurate and convenient diagnostic method for atrial fibrillation (AF)? Findings: The Heart Spectrum Blood Pressure Monitor can be used at home, and is capable of determining the occurrence of AF. Three measurement methods were used in this study. The sensitivity, specificity, PPV, and NPV of the methods used are between 90% and 100%, and the Heart Spectrum Blood Pressure Monitor can be effectively applied to AF detection.

Meaning: The Heart Spectrum Blood Pressure Monitor can be used at home and can replace the need for an in-office ECG, thereby accomplishing meaningful telecare.

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Key information

Conditions

Atrial Fibrillation Arrhythmias, Cardiac Cardiovascular Diseases Heart Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms

Age range

20 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

Importance: Atrial fibrillation (AF) is the most common arrhythmia. The most common diagnostic method, 12-lead ECG, can record episodes of arrhythmia from which the type and severity can be determined. The Heart Spectrum Blood Pressure Monitor (P2, OSTAR Meditech Corp.) is used to measure cardiovascular pressure change, with fast Fourier transform (FFT) analysis, to obtain the heart rate frequency variability and accurate blood pressure data.

Objective: To compare the diagnostic efficacy of the Heart Spectrum Blood Pressure Monitor with a 12-lead ECG in patients with AF. Three measurement methods were used in this study: blood pressure, mean arterial pressure (MAP) which is calculated from individual blood pressure as constant pressure, and a constant pressure 60 mmHg, in order to analyze the heart index and compare it with simultaneous 12-lead ECG.

Design: The physician used a 12-lead ECG and the Heart Spectrum Blood Pressure Monitor simultaneously. The Heart Spectrum Blood Pressure Monitor used an FFT analysis for the diagnosis of AF; the findings were compared with the readings from the 12-lead ECG.

Setting: This unblinded clinical trial was conducted at the Emergency Room of Taipei Medical University Hospital.

Participants: Twenty-nine subjects with AF and 33 without AF, aged 25 to 97 years (mean: 63.5 years), were included.

Intervention(s) for clinical trials Subjects who had been exposed to high frequency surgical equipment during testing, those with cardiac pacemakers or implantable defibrillators, and pregnant women were excluded.

Trial Registration: TMU JIRB No.: N201510061

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Subjects older than 20 years of age who had been diagnosed with AF using 12-lead ECG, or were healthy (without AF) were included.

Exclusion criteria

Subjects who had been exposed to high frequency surgical equipment during testing, those with cardiac pacemakers or implantable defibrillators, and pregnant women were excluded.

Treatment and study plan

Heart Spectrum Blood Pressure Monitor

Device

The Heart Spectrum Blood Pressure Monitor provides a convenient and effective filtering application compared with traditional methods that require a visit to a physician for a 12-lead ECG.

Primary outcomes

The Heart Spectrum Blood Pressure Monitor used an FFT analysis for the diagnosis of AF; the findings were compared with the readings from the 12-lead ECG.

Time frame: monitoring for about 60 seconds per test

In the emergency room, when medical staff found patients with AF, they informed the research physicians to study the case. The Heart Spectrum Blood Pressure Monitor was compared with 12-lead ECG (ELI 250) after written informed consent was obtained from the patient. The results were interpreted by the emergency physician. Finally, the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were analyzed to evaluate the clinical efficacy.

Sponsors and collaborators

Lead sponsor

Ostar Meditech Corp

Industry

Registry information

Official study title

Assessment of the Clinical Efficacy of the Heart Spectrum Blood Pressure Monitor for Diagnosis of Atrial Fibrillation: An Unblinded Clinical Trial

Important dates

Study start: 2016
Primary completion: 2016
Study completion: 2016
First posted: Mar 29, 2017
Registry last updated: Mar 29, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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