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https://www.readbyqxmd.com/read/29136138/calcific-aortic-valve-stenosis-hard-disease-in-the-heart-a-biomolecular-approach-towards-diagnosis-and-treatment
#1
Frederique E C M Peeters, Steven J R Meex, Marc R Dweck, Elena Aikawa, Harry J G M Crijns, Leon J Schurgers, Bas L J H Kietselaer
Calcific aortic valve stenosis (CAVS) is common in the ageing population and set to become an increasing economic and health burden. Once present, it inevitably progresses and has a poor prognosis in symptomatic patients. No medical therapies are proven to be effective in holding or reducing disease progression. Therefore, aortic valve replacement remains the only available treatment option. Improved knowledge of the mechanisms underlying disease progression has provided us with insights that CAVS is not a passive disease...
November 10, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29135480/mechanical-surface-area-of-prosthetic-heart-valve-adverse-clinical-impact-of-large-mechanical-valve-in-mitral-position
#2
Yang Hyun Cho, Kiick Sung, Wook Sung Kim, Jae-Hun Kim, Sung Mok Kim, Pyo Won Park
Although thromboembolic accidents are serious adverse events associated with mechanical mitral valves, there have been no studies on the clinical impact of the large mechanical surface areas (MSAs) of mechanical mitral prostheses. Between 1995 and 2010, 488 consecutive adult patients underwent isolated mechanical mitral valve replacement. We measured the MSA via three-dimensional computed tomography for each prosthesis. Mean patient age was 50.6 ± 11.1 years. The mean body surface area (BSA) and MSA index (MSAI, MSA/BSA) were 1...
November 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29134537/current-status-of-cardiovascular-surgery-in-japan-2013-and-2014-a-report-based-on-the-japan-cardiovascular-surgery-database-4-valvular-heart-surgery
#3
Kiyoharu Nakano, Norimichi Hirahara, Noboru Motomura, Hiroaki Miyata, Shinichi Takamoto
Data from the Japan cardiovascular surgery database from 2013 to 2014 were analyzed to demonstrate the mortality rate and choice of surgical procedures, especially concerning the selection of valve prosthesis for each valve position and patient age group, and the effects of preoperative complications on mortality and prosthetic valve selection. The proportion of each surgical procedure was compared for each patient age in the aortic, mitral, and tricuspid positions. The proportion of mechanical valve prostheses was 23...
November 13, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29134471/the-impact-of-heat-treatment-on-porcine-heart-valve-leaflets
#4
R Glenn Hepfer, Peng Chen, Kelvin G M Brockbank, Alyce L Jones, Amanda K Burnette, Zhen Chen, Elizabeth D Greene, Lia H Campbell, Hai Yao
The purpose of this study was to determine the impact of elevated temperature exposure in tissue banking on soft tissues. A secondary objective was to determine the relative ability of various assays to detect changes in soft tissues due to temperature deviations. Porcine pulmonary heart valve leaflets exposed to 37 °C were compared with those incubated at 52 and 67 °C for 10, 30 and 100 min. The analytical methods consisted of (1) viability assessment using the resazurin assay, (2) collagen content using the Sircol assay, and (3) permeability assessment using an electrical conductivity assay...
November 13, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/29133070/percutaneous-treatment-for-native-mitral-regurgitation
#5
REVIEW
Paul Sorajja, Francesco Maisano
Severe mitral regurgitation (MR) confers an adverse prognosis, frequently with debilitating symptoms of heart failure. While open surgical correction has been the standard of care for decades, novel catheter-based technologies have emerged that are highly effective in the treatment of MR. These percutaneous technologies, which include methods for both repair as well as valve replacement, have the potential to address unmet clinical needs in patients with MR, and serve as a viable alternative to surgery.
November 10, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29131805/management-of-radiation-induced-valvular-heart-disease-due-to-hodgkin-s-lymphoma-in-the-modern-area
#6
Elise Paven, Claire Cimadevilla, Marina Urena, Marie-Pierre Dilly, Patrick Nataf, Richard Raffoul, Dominique Himbert, Alec Vahanian, David Messika-Zeitoun
AIMS: Series purely related to radiation-induced valvular heart diseases (RI-VHD) due to Hodgkin's lymphoma are scarce. We sought to report their contemporary management at the area of transcatheter therapies. METHODS AND RESULTS: We retrospectively enrolled all consecutive patients who underwent a surgical/transcatheter procedure between 2006 and 2016 at our institution for symptomatic RI-VHD due to Hodgkin's lymphoma. Management was left at the discretion of the heart team...
November 14, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29131801/real-world-experience-using-the-acurate-neo%C3%A2-prosthesis-30-day-outcomes-of-1000-patients-enrolled-in-the-savi-tf-registry
#7
Helge Möllmann, Christian Hengstenberg, Michael Hilker, Sebastian Kerber, Ulrich Schäfer, Tanja Rudolph, Axel Linke, Norbert Franz, Thomas Kuntze, Holger Nef, Utz Kappert, Thomas Walther, Michael O Zembala, Stefan Toggweiler, Won-Keun Kim
AIMS: The aim of the SAVI-TF registry was to assess the safety and performance of the self-expanding ACURATE neoTM transfemoral transcatheter heart valve in a large patient population with severe aortic stenosis and to investigate if the outcomes obtained in the CE-mark cohort can be replicated in an unselected all-comers population. METHODS AND RESULTS: From October 2014 until April 2016, 1000 patients were enrolled in this prospective, European multicenter registry...
November 14, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29131080/complete-static-repopulation-of-decellularized-porcine-tissues-for-heart-valve-engineering-an-in-vitro-study
#8
Annelies Roosens, Mahtab Asadian, Nathalie De Geyter, Pamela Somers, Ria Cornelissen
To date, a completely in vitro repopulated tissue-engineered heart valve has not been developed. This study focused on sequentially seeding 2 cell populations onto porcine decellularized heart valve leaflets (HVL) and pericardia (PER) to obtain fully repopulated tissues. For repopulation of the interstitium, porcine valvular interstitial cells (VIC) and bone marrow-derived mesenchymal stem cells (BM-MSC) or adipose tissue-derived stem cells (ADSC) were used. In parallel, the culture medium was supplemented with ascorbic acid 2-phosphate (AA) and its effect on recolonization was investigated...
November 8, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/29130670/-risk-factors-associated-with-the-outcomes-of-heart-valve-replacement
#9
Zhi Fang, Er-Yong Zhang
OBJECTIVE: To determine risk factors associated with the outcomes of heart valve replacement,especially in the patients with rheumatic heart disease (RHD). METHODS: Data were extracted from 2 696 patients who received valve replacement from August 2012 to January 2015. Spearman correlation analyses were performed to identify potential risk factors. Logistic regression models were established to determine risk factors associated with deaths and complications. RESULTS: Duration of cardiopulmonary bypass (CPB) [standard partial regression coefficient ( B')=0...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29130619/a-feasibility-study-of-transaxillary-tavi-with-the-lotus-valve
#10
Sagar N Doshi, Sudhakar George, Chun Shing Kwok, Anthony Mechery, Mamas Mamas, Peter F Ludman, Jonathan N Townend, Moninder Bhabra
OBJECTIVES: To assess the feasibility of axillary transcatheter aortic valve implantation (TAVI) using the Lotus valve. BACKGROUND: TAVI is used to treat patients with severe aortic stenosis, with transfemoral (TF) access being the safest and most widely used route. In patients unsuitable for this, there are reports that the axillary artery may be safest alternative access route. The Lotus device is a fully retrievable 2nd generation transcatheter heart valve which is licensed for femoral and transaortic access...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29130616/emergency-extracorporeal-membrane-oxygenation-in-transcatheter-aortic-valve-implantation-a-two-center-experience-of-incidence-outcome-and-temporal-trends-from-2010-to-2015
#11
Teresa Trenkwalder, Costanza Pellegrini, Andreas Holzamer, Alois Philipp, Tobias Rheude, Jonathan Michel, Wibke Reinhard, Michael Joner, Albert M Kasel, Adnan Kastrati, Heribert Schunkert, Dierk Endemann, Kurt Debl, N Patrick Mayr, Michael Hilker, Christian Hengstenberg, Oliver Husser
BACKGROUND: Although the incidence of periprocedural complications has decreased in transcatheter aortic valve implantation (TAVI), life-threatening complications occur and emergency veno-arterial extracorporeal membrane oxygenation (vaECMO) can provide immediate circulatory stabilization. We report our two-center experience of vaECMO during life-threatening complications in TAVI. METHODS: From January 2010 to December 2015, 1,810 consecutive patients underwent TAVI at two centers...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29129879/transcatheter-aortic-valve-implantation-for-degenerated-19-mm-aortic-bioprosthetic-valve
#12
Kizuku Yamashita, Tomoyuki Fujita, Satsuki Fukushima, Yusuke Shimahara, Yuta Kume, Yorihiko Matsumoto, Naonori Kawamoto, Tatsuro Hitsumoto, Nobuyasu Ito, Yasuhiro Hamatani, Atsushi Okada, Hiroyuki Takahama, Makoto Amaki, Takuya Hasegawa, Yasuo Sugano, Hideaki Kanzaki, Toshihisa Anzai, Satoshi Yasuda, Junjiro Kobayashi
BACKGROUND: The valve-in-valve procedure, in which a transcatheter heart valve (THV) is implanted over a prosthetic valve, has been shown to be safe and therapeutically effective, depending on the size of the replacement valve.Methods and Results:We report 3 cases of successful valve-in-valve procedure to replace a degenerated 19-mm stented prosthetic aortic valve. Balloon-expanding THVs were implanted: 20-mm in the 1st case and 23-mm in the next 2. Aortic stenosis was almost completely resolved in all patients, who recovered promptly and without cardiac adverse events...
November 11, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29129374/the-jarvik-2000-left-ventricular-assist-device-as-a-bridge-to-transplantation-japanese-registry-for-mechanically-assisted-circulatory-support
#13
Hiroki Kohno, Goro Matsumiya, Yoshiki Sawa, Minoru Ono, Yoshikatsu Saiki, Akira Shiose, Kenji Yamazaki, Yoshiro Matsui, Hiroshi Niinami, Hikaru Matsuda, Soichiro Kitamura, Takeshi Nakatani, Shunei Kyo
BACKGROUND: The Jarvik 2000 ventricular assist device features a miniaturized intraventricular pump and an intermittent low-speed function that facilitates aortic valve opening. Despite its long history, little is known about the Jarvik device with regard to post-implantation outcomes. METHODS: Prospectively collected data from 13 participating hospitals were extracted from the Japanese Registry for Mechanically Assisted Circulatory Support database to analyze mortality, morbidity and de-novo aortic regurgitation...
October 24, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29128868/association-of-lpa-variants-with-aortic-stenosis-a-large-scale-study-using-diagnostic-and-procedural-codes-from-electronic-health-records
#14
Hao Yu Chen, Line Dufresne, Hannah Burr, Athithan Ambikkumar, Niko Yasui, Kevin Luk, Dilrini K Ranatunga, Rachel A Whitmer, Mark Lathrop, James C Engert, George Thanassoulis
Importance: Elevated lipoprotein(a) levels are a risk factor for aortic stenosis (AS). However, a large-scale replication of associations between LPA variants and AS, their interactions with risk factors, and the effect of multiple risk alleles is not well established. Objective: To replicate the association between LPA variants with AS and identify subgroups who are at higher risk of developing AS. Design, Setting, and Participants: This case-control study of AS included 44 703 individuals (3469 cases) 55 years or older who were enrolled in the Genetic Epidemiology Research on Aging cohort and who were members of the Kaiser Permanente Northern California health care delivery system...
November 12, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/29128571/exercise-testing-in-mitral-regurgitation
#15
REVIEW
Raluca Dulgheru, Stella Marchetta, Tadafumi Sugimoto, Yun Yun Go, Alexandra Girbea, Oury Cécile, Patrizio Lancellotti
Mitral regurgitation (MR) is the second most common valvular heart disease referred for corrective surgery. Diagnostic and management dilemmas are not uncommon when dealing with MR patients. Exercise testing plays an important role in sorting out some of these clinical challenges. In primary asymptomatic MR, exercise testing allows symptom assessment, confident link of symptoms to valve disease severity, safe deferral of surgery for the next 1-year in patients with preserved exercise capacity, insights into the mechanism of exercise-induced dyspnea and helps in individual risk stratification...
November 8, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29128570/outcomes-in-degenerative-mitral-regurgitation-current-state-of-the-art-and-future-directions
#16
REVIEW
Milind Y Desai, Francesco Grigioni, Marco Di Eusanio, Matteo Saccocci, Maurizio Taramasso, Francesco Maisano, Rakesh M Suri, A Marc Gillinov
Mitral regurgitation (MR) is the one of the most frequent valvular heart diseases in the developed world, often requiring surgical correction. Degenerative MR is the most common type of non-ischemic, organic MR in the western world. Since no medical treatment has been shown to be effective in preventing the consequences of volume overload in asymptomatic degenerative MR, risk stratification is essential. Currently, this is achieved using clinical and precisely quantified echocardiographic parameters, with newer technologies like cardiac magnetic resonance gaining increasing prominence...
November 8, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29128473/transfemoral-aortic-valve-implantation-is-more-successful-with-the-edwards-sapien-3-compared-with-the-edwards-xt-for-the-treatment-of-symptomatic-severe-aortic-stenosis
#17
Birgid Gonska, Julia Seeger, Alexander Junker, Christoph Rodewald, Ulrike Trepte, Dominik Scharnbeck, Wolfgang Rottbauer, Jochen Wöhrle
BACKGROUND: Residual aortic regurgitation (AR) after transfemoral aortic valve implantation (TAVI) is associated with increased mortality. The new Edwards Sapien 3 valve (ES3) is designed to reduce paravalvular AR. AIM: To compare a new-generation and a late-generation balloon-expandable transcatheter heart valve. METHODS: In this study, 100 consecutive patients treated with the ES3 for symptomatic native severe aortic stenosis were compared with 100 consecutive patients treated with the Edwards Sapien XT valve (EXT); all valves were implanted via transfemoral access...
November 8, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29128265/atrial-flutter-has-less-left-atrial-spontaneous-contrast-and-higher-left-atrial-appendage-emptying-velocity-compared-with-atrial-fibrillation
#18
Jennifer J Huang, Sridhar Reddy, Tam H Truong, Prakash Suryanarayana, Joseph S Alpert
BACKGROUND: The risk of stroke and thromboembolism in atrial fibrillation is established. There are clear guidelines in anticoagulation management of patient's with atrial fibrillation, however, the evidence surrounding the risk of thromboembolism in patients with atrial flutter is not as clear. We hypothesized that atrial flutter would have indicators of less risk for thromboembolism compared with atrial fibrillation on transesophageal echocardiography (TEE); thereby possibly leading to a lower stroke risk...
November 8, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/29126782/feasibility-and-limitations-of-mitral-valve-repair-with-or-without-left-ventricular-reconstruction-in-non-ischemic-dilated-cardiomyopathy
#19
Yasushige Shingu, Tomonori Ooka, Hiroki Katoh, Tsuyoshi Tachibana, Suguru Kubota, Yoshiro Matsui
BACKGROUND: Although non-transplant surgical interventions for non-ischemic dilated cardiomyopathy (NIDCM) are relatively effective, their feasibility and limitations have not been fully elucidated. The aim of this study was to define the feasibility and limitations of mitral valve repair, with or without surgical ventricular reconstruction for patients with NIDCM in terms of postoperative low cardiac output syndrome (LOS). METHODS: Twenty non-transplant candidates (aged 57±13 years) with NIDCM and significant mitral regurgitation had undergone mitral valve repair combined with submitral procedures...
November 7, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/29125921/management-of-anticoagulation-in-patients-with-prostate-cancer-receiving-enzalutamide
#20
Joseph J Shatzel, Molly M Daughety, Sven R Olson, Tomasz M Beer, Thomas G DeLoughery
Enzalutamide, a novel, oral androgen receptor antagonist used for the treatment of metastatic, castration-resistant prostate cancer, has been shown to improve overall and progression-free survival, prolong time to initiation of chemotherapy, reduce skeletal-related events, and carry a favorable adverse effect profile. Metastatic prostate cancer is a disease of older men, a population with an increased incidence of medical comorbidities warranting anticoagulation. Prostate cancer itself, along with some of its therapies, is also prothrombotic...
November 2017: Journal of Oncology Practice
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