Quantification of physical activity with activity tracking after transfemoral aortic valve replacement (TAVR)

Abstract Background and hypothesis TAVR is a well-established, safe effective therapy for severe symptomatic aortic stenosis (AS), but improvement of physical activity after difficult to assess objectively. The aim this study was quantify with Activity Tracking special focus on the different low-gradient subtypes AS. Methods All patients who underwent AS in our center between 01/2019 12/2019 were screened. Participants received an Tracker 7 days at two times: hospital discharge following procedure 6 months thereafter. difference mean daily steps defined as endpoint. Results analysis based 230 patients. median age 79.7 years 53.7% male participants. valve area (AVA) 0.75 cm2 pressure gradient 38.7 mmHg (Table 1). amount 4409 [IQR 2581–7487] steps/day 5326 3045–8668] On patient base, per day ? 529 ?702–2152]). Whenever possible, categorized into subgroups Patients high-gradient (HG) showed significant months-FUP (? 951 ?378–2.323], p<0.001), well paradox low-flow-low-gradient (LFLG) 1392 ?609–4444], p=0.02). classical LFLG also 6-months-FUP without statistical significance 192 ?687–770], p=0.79). normal-flow-low-gradient (NFLG) have no 6-months show tendency decline ?300 ?1334–1406], p=0.67) (Figure Conclusions This first sample size evaluate objective reproducible method. Overall, improved significantly increased all besides NFLG AS, where shown. However increase did not reach Funding Acknowledgement Type funding sources: None. Table 1Figure 1