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Prevalence of Sub-Clinical Atrial Fibrillation in Elderly Patients With Hypertension, Detected Using an External Loop Recorder

NCT02401854

CompletedN/A

Sponsor: Population Health Research Institute

Conditions: Elderly, Hypertension, Risk Factors for Atrial Fibrillation

Countries: Canada

The ASSERT-III study aims to determine the incidence of sub-clinical (silent) atrial fibrillation (AF) among elderly patients with hypertension and at least one other risk factor for AF. This will be accomplished by monitoring with a wireless external loop monitor for 30 to 60 days.

Eligibility overview

Sex: ALL

Age: 80 Years to —

Healthy volunteers: No

Study type: OBSERVATIONAL

Eligibility criteria

Inclusion Criteria:

Patients will be eligible for inclusion if they meet all of the following:

1. Age ≥ 80 years
2. History of hypertension OR a blood pressure of ≥ 140/90 mmHg
3. Attending a primary care clinic, OR ambulatory resident of a chronic care facility
4. At least one of the following additional risk factors for developing AF:

   1. Diabetes
   2. Body mass index ≥ 30
   3. History of smoking
   4. Documented Obstructive sleep apnea
   5. Cardiovascular disease
   6. Heart Failure
   7. Left ventricular hypertrophy (on ECG or echocardiography)
5. Provide written informed consent

Exclusion Criteria:

1. ECG documented history of AF or atrial flutter, with an episode duration ≥ 6 minutes
2. Existing implanted pacemaker or defibrillator
3. Patients considered by the investigator to be unsuitable for study follow-up because the patient:

   1. is unreliable concerning the requirements for follow-up during the study and/or compliance with the use of the external loop recorder
   2. has a life expectancy less that the expected study duration due to concomitant disease
   3. has a condition which in the opinion of the investigator, would not allow current chronic treatment with anticoagultion -

Locations (4)

Burlington, Ontario, Canada
Hamilton, Ontario, Canada
Hamilton, Ontario, Canada
Oakville, Ontario, Canada