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Valve therapies

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https://www.readbyqxmd.com/read/28108064/stent-and-leaflet-stresses-in-a-26-mm-first-generation-balloon-expandable-transcatheter-aortic-valve
#1
Yue Xuan, Kapil Krishnan, Jian Ye, Danny Dvir, Julius M Guccione, Liang Ge, Elaine E Tseng
OBJECTIVE: Transcatheter aortic valve replacement is established therapy for high-risk and inoperable patients with severe aortic stenosis, but questions remain regarding long-term durability. Valve design influences durability. Increased leaflet stresses in surgical bioprostheses have been correlated with degeneration; however, transcatheter valve leaflet stresses are unknown. From 2007 to 2014, a majority of US patients received first-generation balloon-expandable transcatheter valves...
December 23, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28102444/patients-with-bicuspid-and-tricuspid-aortic-valve-exhibit-distinct-regional-microrna-signatures-in-mildly-dilated-ascending-aorta
#2
Sebastian Albinsson, Alessandro Della Corte, Azra Alajbegovic, Katarzyna K Krawczyk, Ciro Bancone, Umberto Galderisi, Marilena Cipollaro, Marisa De Feo, Amalia Forte
MicroRNAs are able to modulate gene expression in a range of diseases. We focused on microRNAs as potential contributors to the pathogenesis of ascending aorta (AA) dilatation in patients with stenotic tricuspid (TAV) or bicuspid aortic valve (BAV). Aortic specimens were collected from the 'concavity' and the 'convexity' of mildly dilated AAs and of normal AAs from heart transplant donors. Aortic RNA was analyzed through PCR arrays, profiling the expression of 84 microRNAs involved in cardiovascular disease...
January 19, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28101839/surgical-treatment-of-ischemic-mitral-regurgitation-valve-repair-versus-replacement
#3
REVIEW
Abhishek Sharma, Sahil Agrawal, Sunny Goel, Jeffrey S Borer
PURPOSE OF REVIEW: Ischemic mitral regurgitation (MR), which occurs in about 20-30% patients with a prior myocardial infarction, is associated with worsening heart failure and an increase in cardiovascular mortality. It should be treated surgically if certain hemodynamic severity criteria are met and in patients who continue to experience symptoms of heart failure despite optimal medical therapy. However, current guidelines do not suggest which of the available approaches to mitral valve surgery-mitral valve (MV) repair or replacement (MVR) is superior for this indication...
January 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28100340/-outcome-comparison-of-different-therapy-procedures-in-surgical-high-risk-elderly-patients-with-severe-aortic-stenosis
#4
Y Q Ye, Y T Wang, Z Li, M Y Wang, H Y Xu, W J Zhang, Q R Liu, G N Niu, Y J Wu
Objective: To compare the outcome of surgical high-risk elderly patients with severe aortic stenosis(SAS) treated by different therapy procedures, including transcatheter aortic valve implantation(TAVI), surgical aortic valve replacement(SAVR), and drug therapy. Methods: We retrospectively analyzed the clinical data of 242 surgical high-risk elderly (age ≥65 years old) SAS patients hospitalized in Fuwai Hospital between September 2012 and June 2015. According to the treatment method, patients were divided into TAVI group (81 cases), SAVR group (59 cases) and drug therapy group (102 cases)...
January 25, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28100277/stress-echo-2020-the-international-stress-echo-study-in-ischemic-and-non-ischemic-heart-disease
#5
Eugenio Picano, Quirino Ciampi, Rodolfo Citro, Antonello D'Andrea, Maria Chiara Scali, Lauro Cortigiani, Iacopo Olivotto, Fabio Mori, Maurizio Galderisi, Marco Fabio Costantino, Lorenza Pratali, Giovanni Di Salvo, Eduardo Bossone, Francesco Ferrara, Luna Gargani, Fausto Rigo, Nicola Gaibazzi, Giuseppe Limongelli, Giuseppe Pacileo, Maria Grazia Andreassi, Bruno Pinamonti, Laura Massa, Marco A R Torres, Marcelo H Miglioranza, Clarissa Borguezan Daros, José Luis de Castro E Silva Pretto, Branko Beleslin, Ana Djordjevic-Dikic, Albert Varga, Attila Palinkas, Gergely Agoston, Dario Gregori, Paolo Trambaiolo, Sergio Severino, Ayana Arystan, Marco Paterni, Clara Carpeggiani, Paolo Colonna
BACKGROUND: Stress echocardiography (SE) has an established role in evidence-based guidelines, but recently its breadth and variety of applications have extended well beyond coronary artery disease (CAD). We lack a prospective research study of SE applications, in and beyond CAD, also considering a variety of signs in addition to regional wall motion abnormalities. METHODS: In a prospective, multicenter, international, observational study design, > 100 certified high-volume SE labs (initially from Italy, Brazil, Hungary, and Serbia) will be networked with an organized system of clinical, laboratory and imaging data collection at the time of physical or pharmacological SE, with structured follow-up information...
January 18, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28095388/the-use-of-mitraclip-for-symptomatic-patients-with-hypertrophic-obstructive-cardiomyopathy
#6
Felix Thomas, Florian Rader, Robert J Siegel
OBJECTIVES: Current nonpharmacological therapies for symptomatic patients with hypertrophic obstructive cardiomyopathy (HOCM), including septal myectomy and alcohol septal ablation (ASA), carry significant risks for serious cardiac conduction abnormalities. We present a review of the currently available published data regarding the novel use of the relatively low-risk MitraClip® system in the treatment of symptomatic patients. METHODS: Data were collected from 4 separate studies on the use of the MitraClip on 15 symptomatic HOCM patients with systolic anterior motion (SAM) of the mitral valve apparatus...
January 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28094188/prosthetic-valve-thrombosis-in-the-acute-phase-of-the-stroke-relevance-of-detection-and-follow-up
#7
Jacint Sala-Padro, Jorge Pagola, Maria Teresa Gonzalez-Alujas, Laia Sero, Jesus Juega, Noelia Rodriguez-Villatoro, Sandra Boned, David Rodriguez-Luna, Marian Muchada, Ruben Fernandez-Galera, Marta Rubiera, Marc Ribo, Arturo Evangelista, Carlos Molina
BACKGROUND: Stroke may be the first symptom of prosthetic valve thrombosis (PVT); therefore, rapid diagnosis and therapy are crucial. We aimed to evaluate the prevalence, main predictors, and long-term clinical evolution of patients with PVT in the acute phase of stroke. METHODS: We studied consecutive acute ischemic stroke patients with prosthetic heart valves who underwent emergent transesophageal echocardiography (TEE) during a 5-year period. Two groups were defined depending on the presence of PVT (PVT or non-PVT groups)...
January 13, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28093494/exercise-dynamics-in-secondary-mitral-regurgitation-pathophysiology-and-therapeutic-implications
#8
Philippe B Bertrand, Ehud Schwammenthal, Robert A Levine, Pieter M Vandervoort
Secondary mitral valve regurgitation (MR) remains a challenging problem in the diagnostic workup and treatment of patients with heart failure. Although secondary MR is characteristically dynamic in nature and sensitive to changes in ventricular geometry and loading, current therapy is mainly focused on resting conditions. An exercise-induced increase in secondary MR, however, is associated with impaired exercise capacity and increased mortality. In an era where a multitude of percutaneous solutions are emerging for the treatment of patients with heart failure, it becomes important to address the dynamic component of secondary MR during exercise as well...
January 17, 2017: Circulation
https://www.readbyqxmd.com/read/28089150/anticoagulant-bridging-in-left-sided-mechanical-heart-valve-patients
#9
E A Hart, R Jansen, T A Meijs, B J Bouma, R K Riezebos, W Tanis, W J P van Boven, V Hindori, N Wiersma, T Dessing, J Westerink, S A J Chamuleau
BACKGROUND: In preparation for an invasive procedure with a high bleeding risk, patients with a mechanical heart valve temporarily have to discontinue their anticoagulant therapy and are usually bridged with either intravenous unfractionated heparin (UFH) or subcutaneous low-molecular-weight heparin (LMWH). In this study we retrospectively analyzed the safety of UFH versus LMWH as bridging strategy in left-sided mechanical heart valve patients. METHODS: We performed a retrospective multicenter study in four surgical centers in The Netherlands...
January 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28087742/heartbeat-warfarin-therapy-for-mechanical-heart-valves
#10
EDITORIAL
Catherine M Otto
No abstract text is available yet for this article.
February 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28068928/newly-recognized-cerebral-infarctions-on-postmortem-imaging-a-report-of-three-cases-with-systemic-infectious-disease
#11
Sakon Noriki, Kazuyuki Kinoshita, Kunihiro Inai, Toyohiko Sakai, Hirohiko Kimura, Takahiro Yamauchi, Masayuki Iwano, Hironobu Naiki
BACKGROUND: Postmortem imaging (PMI) refers to the imaging of cadavers by computed tomography (CT) and/or magnetic resonance imaging (MRI). Three cases of cerebral infarctions that were not found during life but were newly recognized on PMI and were associated with severe systemic infections are presented. CASE PRESENTATIONS: An 81-year-old woman with a pacemaker and slightly impaired liver function presented with fever. Imaging suggested interstitial pneumonia and an iliopsoas abscess, and blood tests showed liver dysfunction and disseminated intravascular coagulation (DIC)...
January 10, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28068801/the-prevalence-of-lipoprotein-a-measurement-and-degree-of-elevation-among-2710-patients-with-calcific-aortic-valve-stenosis-in-an-academic-echocardiography-laboratory-setting
#12
Michael J Wilkinson, Gary S Ma, Calvin Yeang, Lawrence Ang, Monet Strachan, Anthony N DeMaria, Sotirios Tsimikas, Bruno Cotter
Lipoprotein(a; Lp[a]) and its associated oxidized phospholipids are causal, genetic risk factors for calcific aortic valve stenosis (CAVS). We determined the prevalence of Lp(a) measurement among 2710 patients with CAVS and 1369 control patients (∼50% of study group) without CAVS with an echocardiogram between January 2010 and February 2016 in an academic echocardiography laboratory. Lipoprotein(a) measurements were performed at a referral laboratory using an isoform-independent assay. The prevalence of any Lp(a) measurement was 4...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28068787/ventricular-endomyocardial-fibrosis-in-a-pregnant-female-with-beh%C3%A3-et-s-disease
#13
Zahra Mirfeizi, Bahram Memar, Hoorak PourZand, Mohammad Hadi Molseghi, Arash Rezaei Shahmirzadi, Nafiseh Abdolahi
A 32-year-old pregnant woman, diagnosed with Behçet's disease 6 months earlier, presented with recent mild hemoptysis and exertional dyspnea. Transthoracic echocardiography showed an enlarged dysfunctional right ventricle. A large hypoechoic triangular-shaped mass was seen attached to the inner right ventricular wall, filling the cavity. No change in the size of the mass was noted after anticoagulant administration, and right heart failure progressed. Surgery was performed to remove the mass and repair the tricuspid valve...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28067714/innovations-in-tricuspid-valve-intervention
#14
Ahmed El-Eshmawi, Gilbert H L Tang, Subodh Verma, Bobby Yanagawa, Marc Ruel, David H Adams
PURPOSE OF REVIEW: Tricuspid valve disease has received much less attention in terms of intervention. The main reason for this is the widely held belief that treatment of left-sided valve disease leads to resolution of functional tricuspid regurgitation. Recent data show that tricuspid regurgitation is not benign and that many patients will benefit from intervention at the time of left-sided valve surgery, or in isolated tricuspid disease. This review describes the latest surgical and interventional options and strategies...
January 6, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28067195/combined-erythropoietin-and-iron-therapy-for-anemic-patients-undergoing-transcatheter-aortic-valve-replacement-the-epicure-randomized-clinical-trial
#15
Marina Urena, Maria Del Trigo, Omar Abdul-Jawad Altisent, Francisco Campelo-Prada, Ander Regueiro, Robert DeLarochellière, Daniel Doyle, Siamak Mohammadi, Jean-Michel Paradis, François Dagenais, Eric Dumont, Rishi Puri, Vincent Laroche, Josep Rodés-Cabau
AIMS: The aim of this study was to evaluate, in anemic patients, the efficacy of erythropoietin (EPO) in reducing red-cell (RC) transfusion rates post-TAVI. METHODS AND RESULTS: This was a randomized double-blind trial. Patients with severe symptomatic aortic stenosis and concomitant anemia with an indication for TAVI were randomized (1:1) to receive 2 weight-based doses of EPO (darbepoetin alfa) + iron or placebo at days 10 (±4 days) and 1 (±1 day) pre- TAVI...
January 10, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28063094/stasis-dermatitis-pathophysiology-evaluation-and-management
#16
REVIEW
Swaminathan Sundaresan, Michael R Migden, Sirunya Silapunt
Stasis dermatitis commonly occurs in older age. It is caused by venous hypertension resulting from retrograde flow due to incompetent venous valves, valve destruction, or obstruction of the venous system. Further tissue changes arise from an inflammatory process mediated by metalloproteinases, which are up-regulated by ferric ion from extravasated red blood cells. Stasis dermatitis presents initially as poorly demarcated erythematous plaques of the lower legs bilaterally, classically involving the medial malleolus...
January 6, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28062425/first-reported-case-of-disseminated-nocardia-kroppenstedtii-sp-nov-infection-presenting-with-brain-abscess-and-endocarditis-in-an-immunocompromised-patient-with-mantle-cell-lymphoma-challenges-in-diagnosis-and-treatment
#17
Aneela Majeed, Hafez Mohammad Ammar Abdullah, Waqas Ullah, Mayar Al Mohajer
A 72-year-old man with a history of blastoid variant stage IV relapsed refractory mantle cell lymphoma presented with new central nervous system (CNS) symptoms. Brain imaging was positive for rim-enhancing lesions along with a mitral valve mass on the echocardiogram. It was a challenge to establish the exact aetiology of these lesions in this patient. He was empirically treated with chemotherapy on the presumption that the brain lesions were secondary to progressive malignancy. However, brain biopsy was negative for malignancy and blood cultures were found positive for Nocardia kroppenstedtii sp nov...
January 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28061897/bacteria-endocarditis-consolidation-with-vertebra-bone-tuberculosis-a-case-report
#18
Yan Liu, Xiaoming Wang, Zhibin Wang, Yongsheng Zhu, Liying Zhang, Xiaoli Li, Rong Xu, Wei Ge
BACKGROUND: The clinical features of bacteria endocarditis became atypical when consolidated with other conditions such as tuberculosis (TB). Especially, the symptoms of bacteria endocarditis (BE) which were hidden behind the TB fever often lead to misdiagnosis and missed diagnosis. CASE PRESENTATION: A 56-year-old male with thoracic vertebra bone TB history presented with low-grade fever, shortness of breath and cardiac souffle. After conventional antibiotic therapy and strengthen anti-tuberculosis treatment condition did not be improved...
January 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28059905/functional-tricuspid-regurgitation-model-in-a-beating-heart-platform
#19
Michal Jaworek, Marco Piola, Federico Lucherini, Guido Gelpi, Marco Castagna, Giuliana Lentini, Carlo Antona, Gianfranco B Fiore, Riccardo Vismara
Currently, clinicians are seeking new, minimally invasive treatment options for functional tricuspid regurgitation (FTR). Challenging tricuspid complexity requires the evaluation of the treatment techniques in adequate and realistic preclinical scenario. The purpose of this paper is to describe the design and functional assessment of a novel passive beating heart model of the pulmonary circulation with the possibility to tightly control FTR.The model housed porcine hearts actuated by a volumetric pump that cyclically pressurized the right ventricle...
January 3, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28058458/-vitamin-k-antagonists-is-their-prescription-really-medical-malpractice-%C3%A2-today
#20
E Rafflenbeul, J Müller-Ehmsen
Atrial fibrillation and venous thromboembolisms are frequent cardiovascular diseases. Until a few years ago only vitamin K antagonists (VKA) were available for oral anticoagulation as primary and secondary prevention of thrombembolic events. Currently, the non-vitamin K dependent new oral anticoagulants (NOAC) dabigatran, rivaroxaban, apixaban and edoxaban are approved for use. The approval studies, meta-analyses and data from registries provide evidence for the superiority of NOAC vs. VKA with respect to reduction of thrombembolisms and reduced bleeding complications; therefore, in the 2016 European Society of Cardiology (ESC) guidelines the use of NOAC is recommended as first line therapy for anticoagulation in atrial fibrillation (recommendation grade I/evidence level A)...
January 2017: Der Internist
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