Abstract
Partner 2 and SURTAVI trials (mean STS score of 5.8 and 4.5) support extending TAVR into the intermediate risk group. We present our results of TAVR in a group with mean STS score of 2.9 and 2 year follow up. This is a prospective cohort study of 46 consecutive patients undergoing TAVR between 2011 and 2016. All patients had severe symptomatic AS. Age, functional status, coronary disease, co-morbidity and imaging parameters were assessed. Patients were followed up for 12-60 months. 46 patients with a mean age of 75 years were enrolled. Mean EF 56%, mean MG 52 mm Hg and mean PG 87 mm Hg. The mean STS score was 2.9. Forty-two underwent transfemoral and 4 transaortic TAVR. Forty-five of 46 valves were implanted successfully. One patient had moderate perivalvular regurgitation (PVR). Post-procedure mean MG was 11 mm Hg. There was one procedure related stroke and one intraprocedural death. Five patients (10.8%) required a permanent pacemaker. 30-day mortality was 2 of 46 (4.3%). Mean follow up was 28 months. Mean MG at 2 years was 12 mm Hg. Late cardiac mortality occurred in 1 patient. TAVR in this group with a low STS score was successful with excellent valve performance. Although the STS score identifies intermediate and high risk patients, it does not account for the overall frailty and limited mobility of many elderly patients placing them at a higher surgical risk despite their low STS scores. A scoring system that captures all such factors is required. Finally, a large scale randomized trial with long term follow up determining the validity of TAVR in truly low risk individuals is necessary.
Published Version
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