Using a Personal Heart Rhythm Monitor to Diagnose Paroxsymal Atrial Fibrillation in the Community

NCT ID: NCT01867060

Last Updated: 2017-04-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

194 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-05-31

Study Completion Date

2016-08-31

Brief Summary

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This propsective study aims to compare the diagnostic yield of a Personal Heart Rhythm Monitor (PHRM) with an automated cardiac event recorder (ACER) to detect paroxysmal Atrial Fibrillation PAF). The investigators hypothesise that the PHRM, used intermittently for 3 months, will detect significantly more cases of PAF than the ACER, used continuously for one week.

A case-control sub-study will identify individuals with confirmed PAF, and matched individuals with no evidence of PAF, to identify potential serum biomarkers for PAF.

A further case-control study will assess markers of left atrial function in patients with PAF and their matched controls.

Another case-control sub-study will determine the significance of frequent Atrial Premature Beats (APBs) in the development of AF over a one year period.

Detailed Description

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Patients with suspected AF will be initially referred to a community-based, nurse-led Arrhythmia clinic by their General Practitioners over a 15-month period.

All patients will be issued with a one week ACER (the 'R. Test 4 Evolution'), seen as the 'best-practice' investigation for this population group. Participants will also be issued with a PHRM for three months. They will be instructed to take regular twice-daily, 30 second recordings with additional recordings in the event of relevant symptoms. They will return the ACER after one week and the PHRM after 3 months.

A subgroup of participants (target recruitment number = 100) will undergo transthoracic echocardiography. A 40ml venous blood sample will also be taken. Another small subgroup (target recruitment = 20) will be asked to continue twice-daily recordings using the PHRM for a further nine months and will be issued with a repeat one week ACER at study completion.

Conditions

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Paroxysmal Atrial Fibrillation Stroke

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Personal Heart Rhythm Monitor

Automated Cardiac Event Recorder in parallel with Personal Heart Rhythm Monitor.

Group Type OTHER

Automated Cardiac Event Recorder

Intervention Type DEVICE

Automated Cardiac Event Recorder to be worn continuously for one week.

Personal Heart Rhythm Monitor

Intervention Type DEVICE

Personal Heart Rhythm Monitor to be used twice-daily for three months.

Interventions

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Automated Cardiac Event Recorder

Automated Cardiac Event Recorder to be worn continuously for one week.

Intervention Type DEVICE

Personal Heart Rhythm Monitor

Personal Heart Rhythm Monitor to be used twice-daily for three months.

Intervention Type DEVICE

Other Intervention Names

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'R. Test Evolution 4' (Novacor). 'Portable ECG monitor HCG-801' (OMRON Healthcare).

Eligibility Criteria

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Inclusion Criteria

* Suspected paroxysmal AF (either palpitations consistent with AF or an irregular pulse)
* 12-lead resting ECG confirming sinus rhythm
* Capacity to consent to study
* English-speaking
* Life expectancy at least one year

Exclusion Criteria

* Previous diagnosis of AF
* Recent history of syncope
* Recent history of cardiac-sounding chest pain
* A resting ECG suggestive of alternative arrhythmia
* Inability to use the telephone
* Thyrotoxicosis
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Royal Surrey County Hospital NHS Foundation Trust

OTHER

Sponsor Role collaborator

University of Surrey

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Philippa Howlett, MBChB BSc

Role: PRINCIPAL_INVESTIGATOR

The Royal Surrey County Hospital

Edward Leatham, MBChB MD

Role: STUDY_DIRECTOR

The Royal Surrey County Hospital

Chris Fry, BSc PhD

Role: STUDY_DIRECTOR

The University of Surrey

Locations

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Royal Surrey County Hospital NHS Foundation Trust

Guildford, Surrey, United Kingdom

Site Status

Countries

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United Kingdom

Related Links

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http://www.haste.uk.com

HASTE charity website

Other Identifiers

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HASTE-2

Identifier Type: -

Identifier Source: org_study_id

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