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Heart valve implantation

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https://www.readbyqxmd.com/read/28544834/in-vitro-pulsatile-flow-measurement-in-prosthetic-heart-valves-an-inter-laboratory-comparison
#1
Stephen M Retta, Jeff Kepner, Salvador Marquez, Bruce A Herman, Mark C S Shu, Laurence W Grossman
BACKGROUND AND AIM OF STUDY: One of the first steps in qualifying a new prosthetic valve for eventual clinical use is preclinical flow performance testing in vitro. Such testing is typically performed in an in-vitro test system that simulates the pumping mechanics of the left ventricle of the heart, generally referred to as a pulse duplicator or duplicator. Historically, test results in these systems have varied from duplicator to duplicator. This collaborative effort between heart valve manufacturers and the Food and Drug Administration (FDA) was designed to evaluate the variability of the pulse duplicator test technology for pulsatile flow performance measurement in an interlaboratory round robin...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28541598/pediatric-melody-mitral-valve-replacement-in-acute-endocarditis-alternative-surgical-hybrid-technique
#2
Ireneusz Haponiuk, Maciej Chojnicki, Radosław Jaworski, Mariusz Steffens, Konrad Paczkowski, Aneta Szofer-Sendrowska, Marta Paśko-Majewska, Katarzyna Gierat-Haponiuk, Anna Romanowicz, Wiktor Szymanowicz
BACKGROUND AND AIM: Acute endocarditis (AE) is still rare disease in pediatric population, nevertheless the children suffering from AE usually need heart valves repair or replacement in emergency settings. METHODS: We present a case of emergency mitral valve replacement with the use of Melody balloon expandable stented bioprosthesis in a 2-years-old patient with acute endocarditis, subsequent mitral (bicuspid) valve incompetence after aggressive infective destruction with the symptoms of critical multiorgan failure...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28537000/advances-in-clinical-cardiology-2016-a-summary-of-the-key-clinical-trials
#3
REVIEW
Alastair Gray, Conor McQuillan, Ian B A Menown
INTRODUCTION: The findings of many new cardiology clinical trials over the last year have been published or presented at major international meetings. This paper aims to describe and place in context a summary of the key clinical trials in cardiology presented between January and December 2016. METHODS: The authors reviewed clinical trials presented at major cardiology conferences during 2016 including the American College of Cardiology (ACC), European Association for Percutaneous Cardiovascular Interventions (EuroPCR), European Society of Cardiology (ESC), European Association for the Study of Diabetes (EASD), Transcatheter Cardiovascular Therapeutics (TCT), and the American Heart Association (AHA)...
May 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28536830/transcatheter-aortic-valve-implantation-in-patients-on-corticosteroid-therapy
#4
Ryosuke Higuchi, Tetsuya Tobaru, Kenichi Hagiya, Mike Saji, Keitaro Mahara, Itaru Takamisawa, Jun Shimizu, Shuichiro Takanashi, Morimasa Takayama
Transcatheter aortic valve implantation (TAVI) is recommended for patients who are inoperable or at high risk for surgical aortic valve replacement (SAVR). Corticosteroid therapy is considered to be a risk factor for SAVR, but there is a paucity of information about TAVI in patients taking corticosteroids. The aim of this study is to elucidate the outcome of TAVI in patients on chronic corticosteroid therapy, compared with SAVR. We retrospectively analyzed patients on corticosteroid therapy who underwent TAVI (n = 21) or SAVR (n = 30) for severe aortic stenosis in Sakakibara Heart Institute...
May 23, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28536530/the-total-artificial-heart-in-end-stage-congenital-heart-disease
#5
REVIEW
Chet R Villa, David L S Morales
The development of durable ventricular assist devices (VADs) has improved mortality rates and quality of life in patients with end stage heart failure. While the use of VADs has increased dramatically in recent years, there is limited experience with VAD implantation in patients with complex congenital heart disease (CHD), despite the fact that the number of patients with end stage CHD has grown due to improvements in surgical and medical care. VAD use has been limited in patients with CHD and end stage heart failure due to anatomic (systemic right ventricle, single ventricle, surgically altered anatomy, valve dysfunction, etc...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28535198/transcatheter-aortic-valve-implantation-for-recurrent-valsalva-sinus-re-dissection-and-severe-aortic-regurgitation-shortly-after-surgery-for-type-a-aortic-dissection
#6
Elena Caporali, Giovanni Pedrazzini, Stefanos Demertzis, Enrico Ferrari
Delayed aortic regurgitation following Valsalva sinus re-dissection is a well-known complication that can occur at any time after surgery for type-A aortic dissection without root replacement. We describe a case of acute type-A dissection in an 81-year-old lady successfully treated with aortic valve resuspension and ascending aorta replacement with a 28-mm vascular graft. A month later, the patient was readmitted for worsening heart failure and a transthoracic echocardiogram showed severe aortic regurgitation secondary to non-coronary Valsalva sinus re-dissection and non-coronary aortic valve leaflet prolapse also confirmed at computed tomography scan...
May 23, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28527962/resolution-of-mitral-regurgitation-with-left-ventricular-assist-device-support
#7
Matthew Goodwin, Hassan W Nemeh, Jamil Borgi, Gaetano Paone, Jeffrey A Morgan
BACKGROUND: Cardiac valve disease is common in patients with end-stage heart failure undergoing left ventricular assist device implantation (LVAD). The aim of this study was to determine if preoperative mitral regurgitation (MR) affects outcomes and hemodynamics in patients after LVAD implantation. METHODS: From March 2006 through May 2015, 238 consecutive patients underwent LVAD implantation. Patient cohorts included less than moderate to severe MR (< moderate-severe, n = 195) and greater than or equal to moderate to severe MR (≥ moderate-severe, n = 43)...
May 17, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28521923/safety-and-efficacy-of-transcatheter-aortic-valve-replacement-in-the-treatment-of-pure-aortic-regurgitation-in-native-valves-and-failing-surgical-bioprostheses-results-from-an-international-registry-study
#8
Fadi J Sawaya, Marcus-André Deutsch, Moritz Seiffert, Sung-Han Yoon, Pablo Codner, Upul Wickramarachchi, Azeem Latib, A Sonia Petronio, Josep Rodés-Cabau, Maurizio Taramasso, Marco Spaziano, Johan Bosmans, Luigi Biasco, Darren Mylotte, Mikko Savontaus, Peter Gheeraert, Jason Chan, Troels H Jørgensen, Horst Sievert, Marco Mocetti, Thierry Lefèvre, Francesco Maisano, Antonio Mangieri, David Hildick-Smith, Ran Kornowski, Raj Makkar, Sabine Bleiziffer, Lars Søndergaard, Ole De Backer
OBJECTIVES: The aim of this study was to evaluate the use of transcatheter heart valves (THV) for the treatment of noncalcific pure native aortic valve regurgitation (NAVR) and failing bioprosthetic surgical heart valves (SHVs) with pure severe aortic regurgitation (AR). BACKGROUND: Limited data are available about the "off-label" use of transcatheter aortic valve replacement (TAVR) to treat pure severe AR. METHODS: The study population consisted of patients with pure severe AR treated by TAVR at 18 different centers...
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28521921/1-year-results-in-patients-undergoing-transcatheter-aortic-valve-replacement-with-failed-surgical-bioprostheses
#9
G Michael Deeb, Stanley J Chetcuti, Michael J Reardon, Himanshu J Patel, P Michael Grossman, Theodore Schreiber, John K Forrest, Tanvir K Bajwa, Daniel P O'Hair, George Petrossian, Newell Robinson, Stanley Katz, Alan Hartman, Harold L Dauerman, Joseph Schmoker, Kamal Khabbaz, Daniel R Watson, Steven J Yakubov, Jae K Oh, Shuzhen Li, Neal S Kleiman, David H Adams, Jeffrey J Popma
OBJECTIVES: This study evaluated the safety and effectiveness of self-expanding transcatheter aortic valve replacement (TAVR) in patients with surgical valve failure (SVF). BACKGROUND: Self-expanding TAVR is superior to medical therapy for patients with severe native aortic valve stenosis at increased surgical risk. METHODS: The CoreValve U.S. Expanded Use Study was a prospective, nonrandomized study that enrolled 233 patients with symptomatic SVF who were deemed unsuitable for reoperation...
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28520540/virtual-surgery-for-conduit-reconstruction-of-the-right-ventricular-outflow-tract
#10
Chin Siang Ong, Yue-Hin Loke, Justin Opfermann, Laura Olivieri, Luca Vricella, Axel Krieger, Narutoshi Hibino
PURPOSE: Virtual surgery involves the planning and simulation of surgical reconstruction using three-dimensional (3D) modeling based upon individual patient data, augmented by simulation of planned surgical alterations including implantation of devices or grafts. Here we describe a case in which virtual cardiac surgery aided us in determining the optimal conduit size to use for the reconstruction of the right ventricular outflow tract. DESCRIPTION: The patient is a young adolescent male with a history of tetralogy of Fallot with pulmonary atresia, requiring right ventricle-to-pulmonary artery (RV-PA) conduit replacement...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28513189/transcatheter-aortic-valve-implantation-the-transaortic-approach
#11
Simon Cy Chow, Gary Sh Cheung, Alex Pw Lee, Eugene B Wu, Jacky Yk Ho, Micky Wt Kwok, Peter Sy Yu, Innes Yp Wan, Malcolm J Underwood, Randolph Hl Wong
Background Transcatheter aortic valve implantation has been established as a safe and effective treatment option for patients at high or prohibitive surgical risk. However, some patients may not be suitable for the transfemoral approach due to severe iliofemoral disease or aneurysmal disease of the thoracoabdominal aorta. The aim of this case series was to evaluate the feasibility and clinical outcomes of the transaortic approach. Methods From May 2015 to June 2016, 5 patients (mean age 78.4 ± 3.9 years) with severe symptomatic aortic stenosis underwent transaortic transcatheter aortic valve implantation after a heart team discussion...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28512722/status-of-cardiovascular-pet-radiation-exposure-and-strategies-for-reduction-an-information-statement-from-the-cardiovascular-pet-task-force
#12
James A Case, Robert A deKemp, Piotr J Slomka, Mark F Smith, Gary V Heller, Manuel D Cerqueira
Cardiovascular positron emission tomography (PET) imaging provides high-quality visual and quantitative myocardial perfusion and function images. In addition, cardiovascular PET can assess myocardial viability, myocardial inflammatory disorders such as cardiac sarcoid, and infections of implanted devices including pacemakers, ventricular assist devices, and prosthetic heart valves. As with all nuclear cardiology procedures, the benefits need to be considered in relation to the risks of exposure to radiation...
May 16, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28510720/effects-of-a-3d-segmental-prosthetic-system-for-tricuspid-valve-annulus-remodelling-on-the-right-coronary-artery-a-human-cadaveric-coronary-angiography-study
#13
Mohsen Riki-Marishani, Arash Gholoobi, Ghasem Sazegar, Mathias H Aazami, Aria Hedjazi, Maryam Sajjadian, Mahmoud Ebrahimi, Ahmad Aghaii-Zade Torabi
OBJECTIVES: A prosthetic system to repair secondary tricuspid valve regurgitation was developed. The conceptual engineering of the current device is based on 3D segmental remodelling of the tricuspid valve annulus in lieu of reductive annuloplasty. This study was designed to investigate the operational safety of the current prosthetic system with regard to the anatomical integrity of the right coronary artery (RCA) in fresh cadaveric human hearts. METHODS: During the study period, from January to April 2016, the current prosthetic system was implanted on the tricuspid valve annulus in fresh cadaveric human hearts that met the study's inclusion criteria...
May 16, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28509760/global-longitudinal-strain-predicts-outcome-after-mitraclip-implantation-for-secondary-mitral-regurgitation
#14
Rodolfo Citro, Cesare Baldi, Patrizio Lancellotti, Angelo Silverio, Gennaro Provenza, Michele Bellino, Michele R Di Muro, Generoso Mastrogiovanni, Roberta De Rosa, Gennaro Galasso, Eduardo Bossone, Pietro Giudice, Federico Piscione
AIM: The aim of this study was to assess preoperative determinants, prevalence, and prognostic impact of left ventricular (LV) reverse remodeling (LVRR) in patients with secondary mitral regurgitation (SMR), undergoing MitraClip implantation (MCi). METHODS: From March 2012 to January 2015, a total of 41 consecutive patients with moderate-to-severe SMR treated successfully with MCi were enrolled. All patients underwent clinical and echocardiographic follow-up after MCi...
May 13, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28505294/anticalcification-effect-of-a-combination-of-decellularization-organic-solvents-and-amino-acid-detoxification-on-glutaraldehyde-fixed-xenopericardial-heart-valves-in-a-large-animal-long-term-circulatory-model
#15
Chun Soo Park, Yong Jin Kim, Jeong Ryul Lee, Hong-Gook Lim, Ji-Eun Chang, Saeromi Jeong, Nayun Kwon
OBJECTIVES: : We aimed to investigate the effect of a combination of anticalcification treatments, which were effective for preventing calcification in a small animal experiment, on glutaraldehyde-fixed xenopericardial valves using a large-animal long-term circulatory model. METHODS: : Valved conduits were made of porcine pericardium as a leaflet and bovine pericardium as a conduit and were implanted into the right ventricular outflow tract of goats under cardiopulmonary bypass...
May 12, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28504238/united-kingdom-coronary-and-structural-heart-interventions-from-2010-to-2015
#16
Peter F Ludman, Mark A de Belder, Simon Redwood, Adrian Banning
In the United Kingdom, a clinical data set is completed for every patient undergoing coronary intervention and certain structural interventions, and sent to central servers in the National Institute for Cardiovascular Outcomes Research (NICOR) on behalf of the British Cardiovascular Intervention Society (BCIS). These data are linked to the national mortality register. In addition, data are obtained about the structure of healthcare provision using an annual survey. Analyses of these data are provided for different audiences in several formats...
May 15, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28504236/switzerland-coronary-and-structural-heart-interventions-from-2010-to-2015
#17
Fabio Rigamonti, Gregor Fahrni, Micha Maeder, Stéphane Cook, Daniel Weilenmann, Peter Wenaweser, Christian Röthlisberger, Roberto Corti, Hans Rickli, Christoph Kaiser, Marco Roffi
In 2015, Switzerland had a population of 8.3 million inhabitants. Since the first coronary angioplasty performed by Andreas Grüntzig in Zurich in 1977, the number of percutaneous procedures has steadily increased. The aim of this report is to summarise the current state of catheter-based cardiac interventions in adults in the country and to detail trends between 2010 and 2015. Since 1987, the Working Group for Interventional Cardiology of the Swiss Society of Cardiology has collected annually aggregate data from all facilities with cardiac catheterisation laboratories in the country...
May 15, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28504232/portugal-coronary-and-structural-heart-interventions-from-2010-to-2015
#18
Rui Campante Teles, Gustavo Pires-Morais, Pedro Canas da Silva, Rui Cruz Ferreira, Manuel de Sousa Almeida, Filipe Seixo, Marco Costa, Vasco Gama Ribeiro, Jorge Marques, João Carlos Silva, Hélder Pereira, Pedro Farto E Abreu, Henrique Carvalho, Eduardo Infante de Oliveira
The aim of the present paper is to report trends in Portuguese interventional cardiology from 2010 to 2015. We studied data from the prospective multicentre Portuguese National Registry of Interventional Cardiology (RNCI) to analyse percutaneous coronary intervention (PCI) procedures and structural heart interventions from 2010 to 2015. A total of 73,977 PCIs and 780 transcatheter aortic valve implants were performed during the study period. Since 2010 there has been a 60% increase in PCI procedures and a twofold increase in primary angioplasty rates reaching 316 per million population...
May 15, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28504230/macedonia-coronary-and-structural-heart-interventions-from-2010-to-2015
#19
Sasko Kedev, Biljana Zafirovska, Oliver Kalpak, Slobodan Antov, Jorgo Kostov, Igor Spiroski, Hristo Pejkov, Marjan Boshev, Ivan Vasllev, Aleksandar Jovkovski, Hajber Taravari, Danica Petkoska, Darko Kitanoski
The aim of this report is to describe invasive cardiology procedural practice in Macedonia during the period from 2010 to 2015. Details of all consecutive 39,899 patients who underwent cardiovascular, peripheral or structural heart procedures during the period from 2010 until 2015 were examined. Clinical and procedure characteristics, access site, procedural success and complications were analysed. The number of coronary angiographies increased from 5,540 in 2010 to 8,550 in 2015. Transfemoral access (TFA) was present in 4% of coronary angiographies in 2010 and had decreased to 1% in 2015...
May 15, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28504229/kazakhstan-coronary-and-structural-heart-interventions-from-2010-to-2015
#20
Orazbek S Sakhov, Murat E Kuzhukeyev, Almat T Kodasbayev, Tolegen Zh Egemberdiev, Salim F Berkinbayev, Bekbolat K Zholdin, Serik A Alimbaev, Sholpan B Zhangelova, Rustam A Rakhimov, Daniyar I Makhanov, Yersyn T Sabitov, Dauren A Teleuov, Ruslan K Baisebenov, Arystan M Kuzhukeyev
This paper presents data on the nascence and development of the interventional cardiology service in Kazakhstan. It provides details of the structure of the Kazakhstan interventional cardiology service, staff training, the number of coronary and structural heart interventions for the period of 2010-2015, as well as the peculiarities of the capitation payment method. The number of coronary interventions is increasing year by year, though the number of intracoronary imaging techniques and intracoronary flow/pressure techniques remains inadequate...
May 15, 2017: EuroIntervention
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