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      The First Case of Successful Transcatheter Aortic Valve Implantation Using CoreValve in Korea

      case-report

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          Abstract

          Surgical replacement of the aortic valve is the standard therapy for severe aortic valve stenosis. However, it is generally associated with increased mortality and morbidities in older individuals. Transcatheter aortic valve implantation (TAVI) is a less invasive procedure and has shown similar clinical outcomes as surgical treatment in elderly patients at high risk for conventional surgery. In this report, we describe the first case of TAVI using a CoreValve in Korea. An 84-year-old man with symptomatic severe aortic valve stenosis was successfully treated by transfemoral TAVI. The patient was discharged without any significant complications and remained free of adverse clinical event for a follow-up duration of 6 months.

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          Cost-effectiveness of transcatheter aortic valve replacement compared with standard care among inoperable patients with severe aortic stenosis: results from the placement of aortic transcatheter valves (PARTNER) trial (Cohort B).

          Paul Reynolds, M Lasala, J. Zyprych-Walczak … (2012)
          In patients with severe aortic stenosis who cannot have surgery, transcatheter aortic valve replacement (TAVR) has been shown to improve survival and quality of life compared with standard therapy, but the costs and cost-effectiveness of this strategy are not yet known. The PARTNER trial randomized patients with symptomatic, severe aortic stenosis who were not candidates for surgery to TAVR (n=179) or standard therapy (n=179). Empirical data regarding survival, quality of life, medical resource use, and hospital costs were collected during the trial and used to project life expectancy, quality-adjusted life expectancy, and lifetime medical care costs to estimate the incremental cost-effectiveness of TAVR from a US perspective. For patients treated with TAVR, mean costs for the initial procedure and hospitalization were $42 806 and $78 542, respectively. Follow-up costs through 12 months were lower with TAVR ($29 289 versus $53 621) because of reduced hospitalization rates, but cumulative 1-year costs remained higher ($106 076 versus $53 621). We projected that over a patient's lifetime, TAVR would increase discounted life expectancy by 1.6 years (1.3 quality-adjusted life-years) at an incremental cost of $79 837. The incremental cost-effectiveness ratio for TAVR was thus estimated at $50 200 per year of life gained or $61 889 per quality-adjusted life-year gained. These results were stable across a broad range of uncertainty and sensitivity analyses. For patients with severe aortic stenosis who are not candidates for surgery, TAVR increases life expectancy at an incremental cost per life-year gained well within accepted values for commonly used cardiovascular technologies. URL: http://www.clinicaltrials.gov. Unique identifier: NCT00530894.
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            Comparison between Society of Thoracic Surgeons score and logistic EuroSCORE for predicting mortality in patients referred for transcatheter aortic valve implantation.

            Itsik Ben-Dor, Michael A Gaglia, Israel Barbash … (2011)
            The primary inclusion criteria from both the Society of Thoracic Surgeons (STS) score and the logistic EuroSCORE are currently used to identify high-risk and inoperable patients eligible for transcatheter aortic valve implantation (TAVI). We aimed to examine the correlation between STS and logistic EuroSCOREs and their performance characteristics in patients referred for TAVI. The study cohort consisted of 718 high-risk patients with severe aortic stenosis who were considered for participation in a TAVI clinical trial. The performance of the STS and logistic EuroSCOREs was evaluated in three groups: (a) medical management or balloon aortic valvuloplasty (BAV), 474 (66%); (b) 133 patients (18.5%) with surgical aortic valve replacement (AVR); (c) 111 (15.4%) with TAVI. The mean age was 81.8 ± 8.1 years, and 394 (54.8%) were female. The mean STS score was 11.5 ± 6.1, and the mean logistic EuroSCORE was 39.7 ± 23.0. Pearson correlation coefficient showed moderate correlation between the STS and logistic EuroSCOREs (r = 0.61, P < .001). At a median follow-up of 190 days (range, 67-476), 282 patients (39.2%) died. The STS and logistic EuroSCOREs were both higher in patients who died as compared to those in survivors (13.1 ± 6.2 vs.10.0 ± 5.8 and 43.4 ± 23.1 vs. 37.5 ± 22, respectively; P < .001). The observed and predicted 30-day mortality rates in the medical/BAV group were 10.1% observed, 12.3% by STS and 43.1% by logistic EuroSCORE. In the surgical AVR group, the rates were 12.8% observed, 8.4% by STS and 25.6% by logistic EuroSCORE. In the TAVI group, the rates were 11.7% observed, 11.8% by STS and 41.2% by logistic EuroSCORE. The odds ratio (OR) for 30-day mortality in the medical/BAV group was 1.05 (P = .01) with STS and 1.003 (P = .7) with logistic EuroSCORE. In the surgical AVR group, the OR was 1.09 (P = .07) with STS and 1.007 (P = .6) with logistic EuroSCORE. In the TAVI group, the OR was 1.14 (P = .03) with STS and 1.03 (P = .04) with logistic EuroSCORE. In high-risk patients with severe aortic stenosis, STS score is superior to the logistic EuroSCORE in predicting mortality. Clinical judgment should play a major role in the selection of patients with severe aortic stenosis for the different therapeutic options. Copyright © 2011. Published by Elsevier Inc.
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              Percutaneous transarterial aortic valve implantation: what do we know?

              Alain Cribier, John Webb (2010)
              Transcatheter aortic valve implantation (TAVI) is assuming a major role in the routine management of patients with aortic stenosis. Surgical aortic valve replacement is generally accepted to prolong survival, on the basis of historical comparisons and long experience. However, recently percutaneous transarterial TAVI has assumed the position as the only therapy in any aortic stenosis patient group demonstrated to prolong survival in a randomized trial. Arguably, percutaneous TAVI is now the standard of care in symptomatic patients who are not candidates for conventional surgery. On the basis of almost 10 years of experience TAVI also appears to be a reasonable option for some operable, but high-risk patients. Nevertheless considerable work needs to be done before the indications for TAVI are expanded into lower risk groups. We review what is currently known about percutaneous transarterial implantation of the aortic valve.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Korean Circ J
                Journal ID (iso-abbrev): Korean Circ J
                Journal ID (publisher-id): KCJ
                Title: Korean Circulation Journal
                Publisher: The Korean Society of Cardiology
                ISSN (Print): 1738-5520
                ISSN (Electronic): 1738-5555
                Publication date (Print): November 2012
                Publication date (Electronic): 28 November 2012
                Volume: 42
                Issue: 11
                Pages: 788-791
                Affiliations
                [1 ]Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea.
                [2 ]Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea.
                [3 ]Department of Anesthesiology and Pain Medicine, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea.
                Author notes
                Correspondence: Myeong-Ki Hong, MD, Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Korea. Tel: 82-2-2228-8460, Fax: 82-2-2227-7732, mkhong61@ 123456yuhs.ac
                Article
                DOI: 10.4070/kcj.2012.42.11.788
                PMC ID: 3518716
                PubMed ID: 23236334
                SO-VID: 2aac08b0-8ba8-4ff8-82be-5c53c19bfb98
                Copyright © Copyright © 2012 The Korean Society of Cardiology
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 07 March 2012
                Date revision received : 05 May 2012
                Date accepted : 07 May 2012
                Categories
                Subject: Case Report

                ScienceOpen disciplines: Cardiovascular Medicine
                Keywords: prosthesis implantation,heart valve prosthesis,catheters,aortic valve stenosis
                Data availability:
                ScienceOpen disciplines: Cardiovascular Medicine
                Keywords: prosthesis implantation, heart valve prosthesis, catheters, aortic valve stenosis

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