About this trial
Atrial fibrillation is the most common sustained cardiac arrhythmia in adults. Due to the asymptomatic and paroxysmal nature (randomly and shortly occurring of atrial fibrillation, and can therefore remain unnoticed) of atrial fibrillation. Atrial fibrillation increases the risk of stroke five fold if left untreated.
Screening in old populations above age 65 years is helpful to find more atrial fibrillation cases. However, screening for atrial fibrillation is not well implemented in China. Thus, this project aims to promote atrial fibrillation screening in primary care centers in China. We will develop an intervention program (SEARCH-AF) and examine the effects (including the clinical effects and implementation effects) of program.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
aged 65 years or above
living in community
Disqualifiers
with a previous confirmed diagnosis of atrial fibrillation
with implanted ICD or pacemaker
unable to provide consent
involving in other atrial fibrillation screening program
Trial design
Sequential
Treatments tested in this trial
SEARCH-AF
BehavioralSEARCH-AF program will include opportunistic screening among old adults during primary care visits and promoting strategies. Promoting strategies will be developed based on the Consolidated Framework for Implementation Research framework which may include leadership engagement, policy support, providing screening resources, atrial fibrillation screening and management training. General practitioner or nurse in each health care center will implement point-on-care screening. The intervention will last for six months and followed up for another six months.
Treatment groups
Trial outcomes
Primary outcomes
Atrial fibrillation detection rate
Rate of newly detected atrial fibrillation. The data will be collected via medical records (primary care medical system) review and patient interview.
Secondary outcomes
Anticoagulation rate
Anticoagulation rate among the newly detected atrial fibrillation cases. The data will be collected via medical records (primary care medical system) review and patient interview.
Cost-effectiveness
Cost-effectiveness refers to the cost of screening for one atrial fibrillation and preventing for one stroke, respectively. It will be assessed using cost-effectiveness ratio. The cost of intervention will include the direct screening cost (screening tool, manpower for carrying out the screening, training on screening, leaflet etc), cost on anticoagulation (expense on oral anticoagulants) and stroke treatment (in-hospital and out-of-hospital cost on stroke treatment). The cost of control group will include the cost on anticoagulation(expense on oral anticoagulants) and stroke treatment (in-hospital and out-of-hospital cost on stroke treatment ). All the cost data will be collected using a patient-reported information sheet.
Atrial fibrillation associated events
Including stroke, bleeding events associated with anticoagulation (referred to bleeding that requires in-hospital treatment), and death. The data will be collected via medical records (primary care medical system) and patient interview.
Atrial fibrillation related medical resource consumption
Including the number of in-hospital and out-of-hospital visits due to atrial fibrillation. Such data will be collected using a patient-reported information sheet.
Locations
Sponsors and contacts
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