Jwalant Raval1, Vinayak Nagaraja2, Guy D Eslick2, A Robert Denniss3. 1. Department of Cardiology, Blacktown Hospital, and University of Western Sydney, Sydney, NSW, Australia. Electronic address: jwalant_21@yahoo.com. 2. The Whiteley-Martin Research Centre, Discipline of Surgery, The University of Sydney, Nepean Hospital, Sydney, NSW, Australia. 3. Department of Cardiology, Blacktown Hospital, and University of Western Sydney, Sydney, NSW, Australia.
Abstract
INTRODUCTION: Transcatheter aortic valve implantation (TAVI) has become an alternative to open surgery in those deemed high risk. The purpose of this study was to evaluate the effectiveness and outcomes of this emerging procedure. We have examined available literature to provide an overview of valve-in-valve implantation using transcatheter heart valves (THVs) in aortic, mitral, pulmonary, tricuspid positions. METHODS: A systematic search was conducted using MEDLINE, PubMed, EMBASE, Current Contents Connect, Cochrane library, Google Scholar, Science Direct, and Web of Science. RESULTS: Only 61 studies met full criteria and were included the review. This included 31 studies reporting transcatheter aortic valve-in-valve implantation, mitral valve-in-valve implantation (13 studies), tricuspid valve-in-valve implantation (12 studies), and pure native aortic valve regurgitation (nine studies). One of the limitations of this review is that most of the studies included were case reports, together with some case series. CONCLUSION: Valve-in-valve implantation can be considered as an acceptable alternative to conventional open heart surgery for elderly high-risk surgical patients with bioprosthetic degeneration. Long-term follow-up of treated patients will be necessary to establish the true role of valve-in-valve implantation for bioprosthetic degeneration. Patients should be evaluated on an individual basis until outcomes are proven in large cohort studies or randomised trials.
INTRODUCTION: Transcatheter aortic valve implantation (TAVI) has become an alternative to open surgery in those deemed high risk. The purpose of this study was to evaluate the effectiveness and outcomes of this emerging procedure. We have examined available literature to provide an overview of valve-in-valve implantation using transcatheter heart valves (THVs) in aortic, mitral, pulmonary, tricuspid positions. METHODS: A systematic search was conducted using MEDLINE, PubMed, EMBASE, Current Contents Connect, Cochrane library, Google Scholar, Science Direct, and Web of Science. RESULTS: Only 61 studies met full criteria and were included the review. This included 31 studies reporting transcatheter aortic valve-in-valve implantation, mitral valve-in-valve implantation (13 studies), tricuspid valve-in-valve implantation (12 studies), and pure native aortic valve regurgitation (nine studies). One of the limitations of this review is that most of the studies included were case reports, together with some case series. CONCLUSION: Valve-in-valve implantation can be considered as an acceptable alternative to conventional open heart surgery for elderly high-risk surgical patients with bioprosthetic degeneration. Long-term follow-up of treated patients will be necessary to establish the true role of valve-in-valve implantation for bioprosthetic degeneration. Patients should be evaluated on an individual basis until outcomes are proven in large cohort studies or randomised trials.
Authors: Tomoyuki Minami; Sarah Sainte; Herbert De Praetere; Filip Rega; Willem Flameng; Peter Verbrugghe; Bart Meuris Journal: Surg Today Date: 2017-04-06 Impact factor: 2.549
Authors: G Casadesus; C S Atwood; X Zhu; A W Hartzler; K M Webber; G Perry; R L Bowen; M A Smith Journal: Cell Mol Life Sci Date: 2005-02 Impact factor: 9.261