Figure 1: Follow-up patterns in patients diagnosed with bicuspid aortic valve by echocardiogram
Flow-chart of patient cardiology follow-up and echocardiogram studies following initial ECHO (2013-2018). Follow-up was determined if there was at least one recorded appointment with outpatient cardiology or outpatient cardiothoracic surgery following the initial ECHO in this study. Recorded follow-up lasted until January 2020. Unconfirmed BAV diagnosis was determined if the ECHO described the aortic valve as “cannot rule out bicuspid valve”, “possible bicuspid valve”, or “unclear if bicuspid” and further ECHO studies did not clarify. BAV reversal was determined if a follow-up echocardiogram stated “tricuspid aortic valve”.