Sparrow App Guided Evaluation (SAGE) Vanguard Trial for Aortic Stenosis in Adults Aged Seventy and Older

This study employs a stepped-wedge cluster randomized design involving four primary care practices affiliated with KMH Cardiology. Each family practice constitutes a single cluster.

All participating practices will start as usual standard of care. At three-month intervals, one practice will be randomly selected to crossover from usual standard of care (control group) to the intervention group. There will be a 2-week wash in period when a family practice crosses over from control to intervention. This process will continue until all practices have implemented the intervention, resulting in full intervention by 15 months.

Investigators hypothesize that the Sparrow screening pathway will result in a higher proportion of patients with a positive echo for moderate or severe aortic stenosis than usual care without protocol driven screening.

Inclusion criteria

• Age 70 years or older at the time of consent.
• Written informed consent from participant
• Receiving care at a participating primary care practice during the study period.

Exclusion criteria

• Known moderate or severe aortic stenosis before enrolment.
• Prior surgical or transcatheter aortic valve replacement.
• Any condition that, in the opinion of the investigator or treating clinician, would preclude informed consent or make participation impractical or unsafe.