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Transcatheter, inflatable, and fully repositionable aortic valve: Preliminary results using a modified implantation technique
Author(s) -
Kische Stephan,
D'Ancona Giuseppe,
Agma Hüseyin U.,
Gürer Hakan,
Ortak Jasmin,
Elsässer Albrecht,
Öner Alper,
Ince Hüseyin
Publication year - 2016
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.26039
Subject(s) - medicine , inflatable , percutaneous , aortic valve , cardiology , surgery , mechanical engineering , engineering
Objectives We present our experience with an inflatable, non‐metallic, fully retrievable, and repositionable transcatheter aortic valve [Direct Flow® Medical (DFM)] focusing on technical features adopted during implantation. Background Implantation techniques of new generation percutaneous aortic valves are still developing and with experience implementations are described. Methods The “low pressure” (initial valve inflation at 4 ATM, lower than the recommended 12 ATM) and the “alternate aortic curve” techniques (initial valve pulling either from the wire running on the side of the inner or from the one on the outer aortic curve) are part of our modified protocol for DFM® implantation. Results Forty‐two consecutive patients underwent TAVI with DFM. The “low pressure” technique was used in all patients. In 27 (64.3%) patients the bulkiest calcifications were on the inner aortic curve side, and an inner curve technique was used to initiate valve pulling toward the annular hinge point. In the remaining 15 (35.7%) patients, an outer curve technique was used. Neither pull‐through nor re‐valving was reported. Valve performance showed mean gradient of 8.9 mm Hg. Mild paravalvular leak was reported in seven (16%) patients. No one experienced moderate or severe aortic insufficiency. Thirty‐day mortality was 9.5% (4/42). Conclusion The “low pressure technique” and the “alternate curve technique” guarantee an anatomy and patient tailored approach to achieve controlled and finely tuned valve seating. © 2015 Wiley Periodicals, Inc.