Prevalence of Sub-Clinical Atrial Fibrillation in Elderly Patients With Hypertension, Detected Using an External Loop Recorder (ASSERT-III)
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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.
Condition or disease
ElderlyHypertensionRisk Factors for Atrial Fibrillation
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Layout table for eligibility information
Ages Eligible for Study:
80 Years and older (Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
elderly patients attending primary care clinic or ambulatory resident of a chronic care facility, with hypertension and at least one addional risk factor for developing AF.
Patients will be eligible for inclusion if they meet all of the following:
Age ≥ 80 years
History of hypertension OR a blood pressure of ≥ 140/90 mmHg
Attending a primary care clinic, OR ambulatory resident of a chronic care facility
At least one of the following additional risk factors for developing AF:
Body mass index ≥ 30
History of smoking
Documented Obstructive sleep apnea
Left ventricular hypertrophy (on ECG or echocardiography)
Provide written informed consent
ECG documented history of AF or atrial flutter, with an episode duration ≥ 6 minutes
Existing implanted pacemaker or defibrillator
Patients considered by the investigator to be unsuitable for study follow-up because the patient:
is unreliable concerning the requirements for follow-up during the study and/or compliance with the use of the external loop recorder
has a life expectancy less that the expected study duration due to concomitant disease
has a condition which in the opinion of the investigator, would not allow current chronic treatment with anticoagultion -