scholarly journals New generation devices for transcatheter aortic valve replacement

Author(s):  
Áurea J. Chaves
2017 ◽  
Vol 245 ◽  
pp. 83-89 ◽  
Author(s):  
Marco Barbanti ◽  
Sergio Buccheri ◽  
Josep Rodés-Cabau ◽  
Simona Gulino ◽  
Philippe Généreux ◽  
...  

2022 ◽  
Vol 8 ◽  
Author(s):  
Alexander Lind ◽  
Alina Zubarevich ◽  
Arjang Ruhparwar ◽  
Matthias Totzeck ◽  
Rolf Alexander Jánosi ◽  
...  

Background: The left subclavian artery (LSA) is an infrequently used alternative access route for patients with severe peripheral artery disease (PAD) in patients who underwent transcatheter aortic valve replacement (TAVR). We report a new endovascular approach for TAVR combining an axillary prosthetic conduit-based access technique with new-generation balloon-expandable TAVR prostheses.Methods and Results: Between January 2020 and December 2020, 251 patients underwent TAVR at the West German Heart and Vascular Center. Of these, 10 patients (3.9%) were deemed to be treated optimally by direct surgical exposure of the left or right axillary artery via a surgically adapted prosthetic conduit. All procedures were performed under general anesthesia. One procedural stroke occurred due to severe calcification of the aortic arch. No specific complications of the subclavian access site (vessel rupture, vertebral, or internal mammary ischemia) were reported. Two minor bleedings from the access site could be treated conservatively. No surgical revision was necessary.Conclusion: The axillary prosthetic conduit-based access technique using new-generation balloon-expandable valves allows safe and successful TAVR in a subgroup of patients with a high risk of procedural complications due to severe peripheral vascular disease. Considering the increasing number of patients referred for TAVR, this approach could represent an alternative for patients with limited access sites.


2020 ◽  
Vol 32 (1) ◽  
pp. 20-28
Author(s):  
Riccardo Gorla ◽  
Matteo Casenghi ◽  
Alice Finotello ◽  
Federico De Marco ◽  
Simone Morganti ◽  
...  

Abstract OBJECTIVES To compare device success and paravalvular leak rates of 3 new-generation transcatheter aortic valve replacement devices in patients with bicuspid aortic valve stenosis and to test their biomechanical performance in a computer-based simulation model of aortic root with increasing ellipticity. METHODS This retrospective multicentre study included 56 bicuspid aortic valve patients undergoing transcatheter aortic valve replacement with new-generation devices: Lotus/Lotus Edge (N = 15; 27%), Evolut-R (N = 20; 36%) and ACURATE neo (N = 21; 37%). Three virtual simulation models of aortic root with increasing index of eccentricity (0–0.25–0.5) were implemented. Stress distribution, stent–root contact area and paravalvular orifice area were computed. RESULTS Device success was achieved in 43/56 patients (77%) with comparable rates among Lotus (87%), Evolut-R (60%) and ACURATE neo (86%; P = 0.085). Moderate paravalvular leak rate was significantly lower in the Lotus group as compared to Evolut-R group (0% vs 30%; P = 0.027) and comparable to the ACURATE neo group (0% vs 10%; P = 0.33). By index of eccentricity = 0.5, Lotus showed a uniform and symmetric pattern of stress distribution with absent paravalvular orifice area, ACURATE neo showed a mild asymmetry with small paravalvular orifice area (1.1 mm2), whereas a severely asymmetric pattern was evident with Evolut-R, resulting in a large paravalvular orifice area (12.0 mm2). CONCLUSIONS Transcatheter aortic valve replacement in bicuspid aortic valve patients with new-generation devices showed comparable device success rates. Lotus showed moderate paravalvular leak rate comparable to that of ACURATE neo and significantly lower than Evolut-R. On simulation, Lotus and ACURATE neo showed optimal adaptability to elliptic anatomies as compared to Evolut-R.


2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Nicole Carabetta ◽  
Sabato Sorrentino ◽  
Fabiola Boccuto ◽  
Antonio Bellantoni ◽  
Salvatore Giordano ◽  
...  

Abstract Aims Post-procedural bleedings have a significant impact on mortality in patients undergoing transcatheter aortic valve replacement (TAVR). Unfortunately, the source of these bleedings is often undetermined, causing difficulties in diagnosis and related treatment. Furthermore, the frequency and determinants of ‘non-overt’ bleeding are largely lacking in TAVR studies. Accordingly, in this analysis, we aimed to assess the frequency and determinants of haemoglobin drop without overt bleeding in patients undergoing TAVR. Methods Patients undergoing TAVR at Magna Graecia University in Catanzaro from September 2008 to November 2020 were included in this study. Post-procedural haemoglobin (Hb) drop was calculated subtracting the lowest value observed after the procedure to the one obtained at admission (Hb drop). The association between baseline clinical and procedural variables with Hb drop was investigated with a linear regression model. Results Out of 407 patients undergoing TAVR at our institution, 119 (29.2%) were excluded because experiencing overt bleeding, red blood cells transfusion, were treated with only balloon angioplasty, or for procedural unsuccess. Among the 288 patients included in the final analysis, 239 (83.0%) were older than 74 y.o., 148 (51.4%) were female, 94 (32.6%) were diabetics, and 69 (24.0%) had CKD. All the patients were deemed at intermediate/high operatory risk and treated using the transfemoral approach. After TAVR, Hb significantly decreased (12.6 ± 1.6 g/dL to 9.7 ± 1.3 g/dL, P < 0.001), with an absolute mean reduction of 2.9 ± 1.23 g/dL 126 patients (43.8%) had Hb drop ≥ 3 g/dL, while 11 (3.8%) had Hb drop ≥ 5 g/dL. The table below summarizes the determinants of Hb drop. Among them, the new generation of self-expandable and balloon-expandable devices were associated with a lower post-procedural Hb drop compared to the previous generation of self-expandable devices, alongside, higher body mass index and hypertension. Conclusions Post-procedural reduction of Hb without overt bleeding or RBC transfusion is frequent, involving almost half of the patients undergoing TAVR. The introduction in clinical practice of new-generation valve devices is significantly associated with a reduction of this adverse event. However, further and thorough investigation should be accomplished to reclassify this large part of patients into a well-defined category.


2018 ◽  
Vol 71 (16) ◽  
pp. S64
Author(s):  
Minsoo Kim ◽  
Yong-Hoon Yoon ◽  
Sang Yong Om ◽  
Hanbit Park ◽  
Sang-Cheol Cho ◽  
...  

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