Read by QxMD icon Read

Heart valve implantation

Saif Al-Najafi, Frank Sanchez, Stamatios Lerakis
Transcatheter valve interventions have emerged as one of the most important developments in structural heart disease over the past 20 years. Initially, these interventions were directed at patients with severe aortic stenosis and high surgical risk; however, their applications have extended to involve other native valves' pathologies, degenerated prosthetic valves, as well as patients of lower surgical risk. In this article, we discuss the importance of cardiac imaging in transcatheter aortic valve replacement (TAVR) by exploring the current practices, guidelines, and recommendations with the supporting data...
December 2016: Current Treatment Options in Cardiovascular Medicine
Andre Paixao, Mehmet Cilingiroglu
Paravalvular leak (PVL) remains as uncommon but serious complication after surgical prosthetic valve implantation. PVL when associated which congestive heart failure, hemolytic anemia, or infective endocarditis may require percutaneous treatment. High-surgical risk is common in this population. Dedicated PVL devices are lacking often limiting optimal treatment.
October 2016: Catheterization and Cardiovascular Interventions
Azeem Latib, Antonio Mangieri, Eustachio Agricola, Paolo Denti, Damiano Regazzoli, Francesco Giannini, Marco B Ancona, Fabrizio Monaco, Ottavio Alfieri, Antonio Colombo
An 84-year-old man with cardial senile amyloidosis and severe tricuspid regurgitation was referred for right sided heart failure symptoms. The patient was scheduled for a percutaneous treatment due to the prohibitive risk of surgery. Two MitraClips were implanted using a transjugular approach with successful echocardiographic and clinical results. This case shows the rational of the procedural with a bicuspidalization of the valve demonstrated at the three dimensional transesophageal echocardiography.
October 17, 2016: International Journal of Cardiovascular Imaging
S Mehrotra, Bhupesh Kumar, R Vijayvergiya, S Mathew
A 62-year lady presented with limb swelling and heart failure due to leads induced venous fibrosis and severe tricuspid stenosis, 33 years after pacemaker implantation. After undergoing surgical removal of all leads and tricuspid valve replacement under cardiopulmonary bypass, she regained a normal functional status and tricuspid and right ventricular functions.
September 2016: Indian Heart Journal
Rodrigo Rios, Susan R Foerster, Todd M Gudausky
The Melody® transcatheter pulmonary valve system was developed for placement within right ventricle-to-pulmonary artery conduits in patients with CHD for treatment of stenosis or regurgitation, providing an alternative to open-heart surgery. Abnormal systemic venous connections altering the catheter course to the right ventricle-to-pulmonary artery conduit may present a challenge to Melody® valve implantation. We present two such cases, in which the Melody® valve was successfully implanted in teenage patients with congenitally corrected transposition of the great arteries after Senning atrial switch operation...
October 17, 2016: Cardiology in the Young
Timm Schäfer, Christian Doose, Buntaro Fujita, Marc Utzenrath, Sandrine Egron, Christoph Schmitz, Smita Scholtz, Maximilian Kütting, Kavous Hakim-Meibodi, Jochen Börgermann, Jan Gummert, Ulrich Steinseifer, Stephan Ensminger
AIMS: The aim was to determine the best functional position of a transcatheter heart valve (THV) implanted as a valve-in-valve (ViV) procedure in small rapid deployment valves (RDV) in an in vitro model. METHODS AND RESULTS: A 21mm Perceval™, Enable™ or INTUITY™ RDV was mounted into a pulse duplicator and a 23mm balloon-expandable or a self-expanding THV was deployed (valve-in-valve) in two different positions. Under physiological hydrodynamic conditions, performance of the THV was characterized by mean transvalvular pressure gradient (MPG), effective orifice area (EOA) and regurgitation volume (RV)...
October 18, 2016: EuroIntervention
Yoshifumi Itoda, Kan Nawata, Haruo Yamauchi, Osamu Kinoshita, Mitsutoshi Kimura, Minoru Ono
Aortic insufficiency (AI) is a significant complication of long-term support of continuous flow left ventricular assist device (CF-LVAD) for patients with end-stage heart failure. A 26-year-old female with osteogenesis imperfecta (OI) was diagnosed with dilated phase hypertrophic cardiomyopathy (d-HCM)) and was implanted with Jarvik 2000, for bridge to transplantation. AI gradually developed and surgical intervention was indicated. We performed central aortic valve closure (CAVC) instead of valve replacement 20 months after CF-LVAD implantation...
October 15, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Farhood Saremi, Cameron Hassani, Damián Sánchez-Quintana
The septal atrioventricular junction is a centrally located region of the heart where the septal components of the atria and ventricles meet the aortic, mitral, and tricuspid valves. Important structures in this region include the membranous septum, the central fibrous body, the Koch triangle, the inferior pyramidal space, and the base of the interventricular septum. This small area is the home of the atrioventricular node and the atrioventricular conduction axis and has enormous importance to electrophysiologists owing to its prime role in the conduction system of the heart...
October 14, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Pedram Hanafizadeh, Nima Mirkhani, Mohammad Reza Davoudi, Mahtab Masouminia, Keyvan Sadeghy
Coronary arteries, which are branched from the sinuses, have tangible effects on the hemodynamic performance of the bileaflet mechanical heart valve (BMHV), especially in the diastolic phase. To better understand this issue, a computer model of ascending aorta including realistic sinus shapes and coronary arteries has been generated in this study in order to investigate the BMHV performance during diastole. Three-dimensional transient numerical analysis is conducted to simulate the diastolic blood flow through the hinges and in coronary arteries under the assumption of non-Newtonian behavior...
October 2016: Artificial Organs
Nikolaos A Papakonstantinou, Nikolaos G Baikoussis, Panagiotis Dedeilias, Michalis Argiriou, Christos Charitos
A hybrid strategy, firstly performed in the 1990s, is a combination of tools available only in the catheterization laboratory with those available only in the operating room in order to minimize surgical morbidity and face with any cardiovascular lesion. The continuous evolution of stent technology along with the adoption of minimally invasive surgical approaches, make hybrid approaches an attractive alternative to standard surgical or transcatheter techniques for any given set of cardiovascular lesions. Examples include hybrid coronary revascularization, when an open surgical anastomosis of the left internal mammary artery to the left anterior descending coronary artery is performed along with stent implantation in non-left anterior descending coronary vessels, open heart valve surgery combined with percutaneous coronary interventions to coronary lesions, hybrid aortic arch debranching combined with endovascular grafting for thoracic aortic aneurysms, hybrid endocardial and epicardial atrial fibrillation procedures, and carotid artery stenting along with coronary artery bypass grafting...
October 8, 2016: Journal of Cardiology
Roland Hilling-Smith, James Cockburn, Maureen Dooley, Jessica Parker, Andrea Newton, Andrew Hill, Uday Trivedi, Adam de Belder, David Hildick-Smith
: Transcatheter aortic valve implantation (TAVI) and balloon aortic valvuloplasty (BAV) are now well established percutaneous procedures. These procedures almost always require bursts of rapid ventricular pacing to temporarily reduce cardiac output to facilitate the procedure, usually done via a temporary pacing wire inserted into the right ventricle. We describe a case series of 132 cases of TAVI and 76 BAV done using ventricular pacing via the left ventricular lead by simply connecting one electrode to the patient's skin and one electrode through the left ventricular (LV) wire...
October 11, 2016: Catheterization and Cardiovascular Interventions
Petra E Dijkman, Emanuela S Fioretta, Laura Frese, Francesco S Pasqualini, Simon P Hoerstrup
The incidence of severe valvular dysfunctions (e.g., stenosis and insufficiency) is increasing, leading to over 300,000 valves implanted worldwide yearly. Clinically used heart valve replacements lack the capacity to grow, inherently requiring repetitive and high-risk surgical interventions during childhood. The aim of this review is to present how different tissue engineering strategies can overcome these limitations, providing innovative valve replacements that proved to be able to integrate and remodel in pre-clinical experiments and to have promising results in clinical studies...
July 2016: Transfusion Medicine and Hemotherapy
Denise C Joffe, Thomas K Jones, Mark Reisman, Elizabeth Perpetua, Yuk Law, Andreas Schuler, G Burkhard Mackensen
We present the primary report of a paediatric patient who had placement of the MitraClip device for severe functional mitral regurgitation. The patient was a 14-year-old boy with symptomatic end-stage non-compaction type cardiomyopathy secondary to a mitochondrial cytopathy. He had severe mitral regurgitation, tricuspid valve regurgitation, a severely dilated LV with apical non-compaction, severe LV dysfunction and severe pulmonary hypertension. Despite optimal medical therapy he developed progressive symptoms of congestive heart failure and he was not a candidate for an assist device or cardiac transplantation...
October 10, 2016: EuroIntervention
Girish Manjunath, Prakash Rao, Nagendra Prakash, B K Shivaram
Recent data from landmark trials suggest that the indications for cardiac pacing and implantable cardioverter defibrillators (ICDs) are set to expand to include heart failure, sleep-disordered breathing, and possibly routine implantation in patients with myocardial infarction and poor ventricular function.[1] This will inevitably result in more patients with cardiac devices undergoing surgeries. Perioperative electromagnetic interference and their potential effects on ICDs pose considerable challenges to the anesthesiologists...
October 2016: Annals of Cardiac Anaesthesia
Piotr Chodór, Krzysztof Wilczek, Teresa Zielińska, Roman Przybylski, Jan Głowacki, Łukasz Włoch, Marian Zembala, Zbigniew Kalarus
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is presently a recognized treatment modality for patients with severe aortic stenosis ineligible for surgery. It reduces mortality as compared to the conservative treatment. It is further expected from this therapy to improve quality of life by improving of the cardiovascular function performance. The aim of this study is to compare patients' cardiovascular system efficiency in the 6-minute walk test (6MWT) made before and after TAVI and at the 6-12-month follow-up...
October 7, 2016: Cardiology Journal
Krzysztof Wróbel, Katarzyna Kurnicka, Marcin Zygier, Wojciech Dyk, Ryszard Wojdyga, Dariusz Zieliński, Małgorzata Jarzębska, Zbigniew Juraszyński, Barbara Lichodziejewska, Piotr Pruszczyk, Andrzej Biederman, Giovanni Speziali, Uwe Kasten
BACKGROUND AND AIM: Artificial chordal implantation in order to repair flail or prolapse mitral valve leaflet requires open heart surgery and cardiopulmonary bypass. Transapical off-pump implantation of neochordae is a new surgical technique proposed to treat degenerative mitral valve regurgitation. The procedure is performed using the NeoChord DS1000 system (NeoChord, Inc., Eden Praire, MN), which facilitates both implantation and tension adjustment of the neochordae under transesophageal echocardiographic 2D and 3D guidance...
October 7, 2016: Kardiologia Polska
Martine Gilard, Hélène Eltchaninoff, Patrick Donzeau-Gouge, Karine Chevreul, Jean Fajadet, Pascal Leprince, Alain Leguerrier, Michel Lievre, Alain Prat, Emmanuel Teiger, Thierry Lefevre, Didier Tchetche, Didier Carrié, Dominique Himbert, Bernard Albat, Alain Cribier, Arnaud Sudre, Didier Blanchard, Gilles Rioufol, Frederic Collet, Remi Houel, Pierre Dos Santos, Nicolas Meneveau, Said Ghostine, Thibaut Manigold, Philippe Guyon, Dominique Grisoli, Herve Le Breton, Stephane Delpine, Romain Didier, Xavier Favereau, Geraud Souteyrand, Patrick Ohlmann, Vincent Doisy, Gilles Grollier, Antoine Gommeaux, Jean-Philippe Claudel, Francois Bourlon, Bernard Bertrand, Marc Laskar, Bernard Iung
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has revolutionized management of high-risk patients with severe aortic stenosis. However, survival and the incidence of severe complications have been assessed in relatively small populations and/or with limited follow-up. OBJECTIVES: This report details late clinical outcome and its determinants in the FRANCE-2 (FRench Aortic National CoreValve and Edwards) registry. METHODS: The FRANCE-2 registry prospectively included all TAVRs performed in France...
October 11, 2016: Journal of the American College of Cardiology
Selman Dumani, Ermal Likaj, Laureta Dibra, Stavri Llazo, Ali Refatllari
In the surgery of aortic valve replacement is always attempted, as much as possible, to implant the larger prosthesis with the mains goals to enhance the potential benefits, to minimise transvalvular gradient, decrease left ventricular size and avoid the phenomenon of patient-prosthesis mismatch. Implantation of an ideal prosthesis often it is not possible, due to a small aortic annulus. A variety of aortic annulus enlargement techniques is reported to avoid patient-prosthesis mismatch. We present the case that has submitted four three times open heart surgery...
September 15, 2016: Open Access Macedonian Journal of Medical Sciences
Philipp Blanke, Jeanette Soon, Danny Dvir, Jong K Park, Christopher Naoum, Shaw-Hua Kueh, David A Wood, Bjarne L Norgaard, Kapilan Selvakumar, Jian Ye, Anson Cheung, John G Webb, Jonathon Leipsic
Valve-in-valve implantation of a transcatheter heart valve into a failed bioprosthetic heart valve has emerged as a treatment alternative to repeat conventional surgery. This requires careful pre-procedural assessment using non-invasive imaging to identify patients at risk for procedure related adverse events, such as ostial coronary occlusion. Herein we report how to comprehensively assess aortic root anatomy using computed tomography prior to transcatheter valve implantation for failed bioprosthetic aortic valves...
September 24, 2016: Journal of Cardiovascular Computed Tomography
Emanuela S Fioretta, Petra E Dijkman, Maximilian Y Emmert, Simon P Hoerstrup
Heart valve replacement is often the only solution for patients suffering from valvular heart disease. However, currently available valve replacements require either life-long anti-coagulation or are associated with valve degeneration and calcification. Moreover, they are suboptimal for young patients, because they do not adapt to the somatic growth. Tissue-engineering has been proposed as a promising approach to fulfill the urgent need for heart valve replacements with regenerative and growth capacity. This review will start with an overview on the currently available valve substitutes and the techniques for heart valve replacement...
September 30, 2016: Journal of Tissue Engineering and Regenerative Medicine
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"