Phan, T. N., Nguyen, T. H., Do, L. A. and Nguyen, C. H. (2026) “Successful valve-in-valve transcatheter aortic valve implantation using a hydra transcatheter aortic valve in a patient with severe degeneration of a surgical bioprosthesis: a case report”, The Vietnam Journal of Cardiovascular and Thoracic Surgery, 54, pp. 77 - 84. doi: 10.47972/vjcts.v54i.1634.