Browsing UMB Open Access Articles by Author "Stortecky, Stefan"
Long-term outcomes after transcatheter aortic valve implantation in failed bioprosthetic valvesBleiziffer, Sabine; Simonato, Matheus; Webb, John G; Rodés-Cabau, Josep; Pibarot, Philippe; Kornowski, Ran; Windecker, Stephan; Erlebach, Magdalena; Duncan, Alison; Seiffert, Moritz; et al. (Oxford University Press, 2020-08-01)AIMS: Due to bioprosthetic valve degeneration, aortic valve-in-valve (ViV) procedures are increasingly performed. There are no data on long-term outcomes after aortic ViV. Our aim was to perform a large-scale assessment of long-term survival and reintervention after aortic ViV. METHODS AND RESULTS: A total of 1006 aortic ViV procedures performed more than 5 years ago [mean age 77.7 ± 9.7 years; 58.8% male; median STS-PROM score 7.3% (4.2-12.0)] were included in the analysis. Patients were treated with Medtronic self-expandable valves (CoreValve/Evolut, Medtronic Inc., Minneapolis, MN, USA) (n = 523, 52.0%), Edwards balloon-expandable valves (EBEV, SAPIEN/SAPIEN XT/SAPIEN 3, Edwards Lifesciences, Irvine, CA, USA) (n = 435, 43.2%), and other devices (n = 48, 4.8%). Survival was lower at 8 years in patients with small-failed bioprostheses [internal diameter (ID) ≤ 20 mm] compared with those with large-failed bioprostheses (ID > 20 mm) (33.2% vs. 40.5%, P = 0.01). Independent correlates for mortality included smaller-failed bioprosthetic valves [hazard ratio (HR) 1.07 (95% confidence interval (CI) 1.02-1.13)], age [HR 1.21 (95% CI 1.01-1.45)], and non-transfemoral access [HR 1.43 (95% CI 1.11-1.84)]. There were 40 reinterventions after ViV. Independent correlates for all-cause reintervention included pre-existing severe prosthesis-patient mismatch [subhazard ratio (SHR) 4.34 (95% CI 1.31-14.39)], device malposition [SHR 3.75 (95% CI 1.36-10.35)], EBEV [SHR 3.34 (95% CI 1.26-8.85)], and age [SHR 0.59 (95% CI 0.44-0.78)]. CONCLUSIONS: The size of the original failed valve may influence long-term mortality, and the type of the transcatheter valve may influence the need for reintervention after aortic ViV. Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020.
The relationship between baseline diastolic dysfunction and postimplantation invasive hemodynamics with transcatheter aortic valve replacementBavry, Anthony A; Okuno, Taishi; Aalaei-Andabili, Seyed Hossein; Kumbhani, Dharam J; Stortecky, Stefan; Asami, Masahiko; Lanz, Jonas; Windecker, Stephan; Pilgrim, Thomas (Wiley-Blackwell, 2020-09-22)Background: Abnormal invasive hemodynamics after transcatheter aortic valve replacement (TAVR) is associated with poor survival; however, the mechanism is unknown. Hypothesis: Diastolic dysfunction will modify the association between invasive hemodynamics postTAVR and mortality. Methods: Patients with echocardiographic assessment of diastolic function and postTAVR invasive hemodynamic assessment were eligible for the present analysis. Diastology was classified as normal or abnormal (Stages 1 to 3). The aorto-ventricular index (AVi) was calculated as the difference between the aortic diastolic and the left ventricular end-diastolic pressure divided by the heart rate. AVi was categorized as abnormal (AVi < 0.5 mmHg/beats per minute) or normal (≥ 0.5 mmHg/beats per minute). Results: From 1339 TAVR patients, 390 were included in the final analysis. The mean follow-up was 3.3 ± 1.7 years. Diastolic dysfunction was present in 70.9% of the abnormal vs 55.1% of the normal AVi group (P <.001). All-cause mortality was 46% in the abnormal vs 31% in the normal AVi group (P <.001). Adjusted hazard ratio (HR) for AVi < 0.5 mmHg/beats per minute vs AVi ≥0.5 mmHg/beats per minute for intermediate-term mortality was (HR = 1.5, 95% confidence interval [CI] 1.1 to 2.1, P =.017). This association was the same among those with normal diastolic function and those with diastolic dysfunction (P for interaction =.35). Conclusion: Diastolic dysfunction is prevalent among TAVR patients. Low AVi is an independent predictor for poor intermediate-term survival, irrespective of co-morbid diastolic dysfunction.