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Publisher: Peytchinski Publishing
ISSN: 1312-773X (Online)
Issue: 2018, vol. 24, issue2
Subject Area: Medicine
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DOI: 10.5272/jimab.2018242.2055
Published online: 19 June 2018
Review article
J of IMAB. 2018 Apr-Jun;24(2):2055-2057
DURABILITY OF BIOLOGICAL PROSTHESES USED FOR MANAGEMENT OF DEGENERATIVE AORTIC STENOSIS – TAVR vs. SAVR
Veselin Valkov1
, Dobrin Kalchev1, Atanas Kostadinov1, Yavor Kashlov2, Branimir Kanazirev2,
1) First Clinic of Cardiology, UMHAT St. Marina, Faculty of Medicine, Medical University, Varna, Bulgaria.
2) Department of Internal Medicine, UMHAT St. Marina, Faculty of Medicine, Medical University, Varna, Bulgaria.
ABSTRACT:
The only known treatment for high grade degenerative aortic stenosis until the beginning of this century was surgical replacement with a biological or mechanical valve. For the high risk or inoperable patients this treatment was unacceptable, with a high mortality rate in both operated and non-operated cases. The new concept of transcatheter valve implantation was developed especially for this group of patients, which number continues to increase. It is a really attractive idea, being able to offer a non-invasive and low risk procedure for a patient who is not considered a good candidate for conventional operation. The increase in the operators experience reduces the rate of mortality in TAVI even more. Both TAVI and surgical valves are biological. The technology used for production of the balloon expandable and self-expandable valves is much more advanced. The biological tissue used in both types of valve is prone to degeneration due to different factors and can lead to valvular dysfunction. The surgical valves are made from porcine or bovine tissue and have a lifespan between 10 and 15 years. In some cases, the dysfunction occurs much sooner. If that happens the patient needs a re-replacement valve surgery. Since such a procedure is risky the patient is usually referred for valve-in-valve TAVI.
Keywords: Transcatheter aortic-valve implantation (TAVI), aortic stenosis, bioprosthetic valvular dysfunction,
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Please cite this article as: Valkov V, Kalchev D, Kostadinov A, Kashlov Y, KanazirevB. Durability of biological prostheses used for management of degenerative aortic stenosis – TAVR vs. SAVR. J of IMAB. 2018 Apr-Jun;24(2):2055-2057. DOI: 10.5272/jimab.2018242.2055
Correspondence to: Veselin Valkov, First Clinic of Cardiology, Department of Internal Medicine, UMHAT St.Marina, Varna; 1, Hr. Smirnensky blvd., Varna, Bulgaria; E-mail: vd.valkoff@abv.bg,
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Received: 27 April 2018
Published online: 19 June 2018