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Prosthetic Valve

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https://www.readbyqxmd.com/read/28917497/comparison-of-outcome-of-possible-versus-definite-infective-endocarditis-involving-prosthetic-or-bioprosthetic-heart-valves
#1
Laurent Fauchier, Lauriane Pericart, Thierry Bourguignon, Thibaud Genet, Arnaud Bisson, Anne Bernard, Louis Bernard, Dominique Babuty
The objectives of this study were to describe and compare the clinical characteristics and outcomes of patients with definite and possible infective endocarditis (IE) involving prosthetic heart valve, and to identify prognostic factors for long-term mortality, using data from an unselected cohort of consecutive patients. We studied data from 133 consecutive patients with IE involving prosthetic heart valve seen in an academic institution between 1990 and 2012. Patients were classified according to the modified Duke criteria for IE: patients with possible IE (n = 47, 35%) and patients with definite IE (n = 86, 65%)...
August 7, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28914661/percutaneous-aortic-leak-closure-in-a-small-and-frail-annulus-after-double-heart-valve-replacement
#2
Guglielmo Saitto, Paolo Nardi, Gian P Ussia, Domenico Sergi, Paolo Prati, Marco Russo, Francesco Romeo, Giovanni Ruvolo
: Paravalvular leak (PVL) is an uncommon but serious complication associated with the implantation of prosthetic valves. Following aortic valve replacement, up to 5% of patients affected by PVL develop clinical symptoms of heart failure, hemolysis or both. Percutaneous treatment of PVL has emerged instead of conventional surgery, as a well tolerated and less invasive procedure but remains a challenge. We present the case of a young woman with mechanical aortic and mitral prostheses, who presented surgical aortic PVL caused by a serious frailty of native annulus, became symptomatic after 5 months and was successfully percutaneously treated with an Amplatzer Duct Occluder device...
September 12, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28903992/importance-of-the-valve-durability-life-expectancy-ratio-in-selection-of-a-prosthetic-aortic-valve
#3
EDITORIAL
Rodrigo Bagur, Philippe Pibarot, Catherine M Otto
No abstract text is available yet for this article.
September 13, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28903607/candida-endocarditis-systematic-literature-review-from-1997-to-2014-and-analysis-of-29-cases-from-the-italian-study-of-endocarditis
#4
Simone Giuliano, Maurizio Guastalegname, Alessandro Russo, Marco Falcone, Veronica Ravasio, Marco Rizzi, Matteo Bassetti, Pierluigi Viale, Maria Bruna Pasticci, Emanuele Durante-Mangoni, Mario Venditti
Candida Endocarditis (CE) is a deadly disease. It is of paramount importance to assess risk factors for acquisition of both Candida native (NVE) and prosthetic (PVE) valve endocarditis and relate clinical features and treatment strategies with the outcome of the disease. Areas covered: We searched the literature using the Pubmed database. Cases of CE from the Italian Study on Endocarditis (SEI) were also included. Overall, 140 cases of CE were analyzed. Patients with a history of abdominal surgery and antibiotic exposure had higher probability of developing NVE than PVE...
September 14, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28894062/-fifteen-year-follow-up-of-a-patient-with-aortitis-treated-by-sino-tubular-junction-plication-using-a-prosthetic-tube-graft-for-aortic-regurgitation-report-of-a-case
#5
Shinichi Ashida, Yuichi Hirate, Daisuke Yano, Shinji Yamada, Fumiaki Kuwabara
A 43-year-old woman was diagnosed with aortitis associated with mild aortic regurgitation (AR) at the age of 25, which advanced to a severe grade requiring surgical treatment at age 28. Dilation of the sinotubular junction (STJ) was treated with ascending aortic replacement (Hemashield Gold 24 mm), which reduced AR from severe to mild. The patient conceived 9 years later and delivered a baby by cesarean section at 38 weeks of gestation. By appropriate control of inflammation with steroid, neither deterioration of the aortic valve nor cardiac function has been noted during the 15 years of follow-up after surgery...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28882817/dental-procedures-antibiotic-prophylaxis-and-endocarditis-among-people-with-prosthetic-heart-valves-nationwide-population-based-cohort-and-a-case-crossover-study
#6
Sarah Tubiana, Pierre-Olivier Blotière, Bruno Hoen, Philippe Lesclous, Sarah Millot, Jérémie Rudant, Alain Weill, Joel Coste, François Alla, Xavier Duval
Objective To assess the relation between invasive dental procedures and infective endocarditis associated with oral streptococci among people with prosthetic heart valves.Design Nationwide population based cohort and a case crossover study.Setting French national health insurance administrative data linked with the national hospital discharge database.Participants All adults aged more than 18 years, living in France, with medical procedure codes for positioning or replacement of prosthetic heart valves between July 2008 and July 2014...
September 7, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28880467/patient-prosthetic-mismatch-following-aortic-valve-replacement-it-may-not-all-be-due-to-the-prosthesis
#7
Harold L Lazar
No abstract text is available yet for this article.
September 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28876686/management-of-failed-mitral-valve-replacement-the-durban-experience
#8
D Kistan, M Booysen, G Alexander, T E Madiba
BACKGROUND: Mitral valve replacement is the procedure of choice in patients with severe mitral valve disease. However, these patients are surviving longer and are thus at an increased risk of prosthesis failure or valve-related complications. METHOD: Study setting: Inkosi Albert Luthuli Central Hospital, a tertiary referral Hospital in Durban. Study population: All patients undergoing redo mechanical mitral valve replacement surgery between January 2005 and December 2014...
June 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28874307/prosthetic-mitral-valve-paravalvular-leak-a-problem-that-requires-dexterity
#9
James W Hansen, Gautam Gadey, Thomas C Piemonte
Prosthetic valve paravalvular leak (PVL) is a known and relatively common complication of surgical valve replacement, which may lead to significant morbidity. Patients with significant mitral valve replacement (MVR) PVL typically present with symptoms of heart failure and elevated filling pressures or with hemolytic anemia. Percutaneous closure of these leaks has become the preferred therapy. Percutaneous closure of MVR PVL can be technically challenging, given the anatomy of the approach (trans-septal, trans-apical), the level of associated comorbidities and the geographic location of the paravalvular defect...
July 24, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28870875/which-is-the-best-anti-aggregant-or-anti-coagulant-therapy-after-tavi-a-propensity-matched-analysis-from-the-iter-registry-the-management-of-dapt-after-tavi
#10
Fabrizio D'Ascenzo, Umberto Benedetto, Matteo Bianco, Federico Conrotto, Claudio Moretti, Augusto D'Onofrio, Marco Agrifoglio, Antonio Colombo, Flavio Ribichini, Giuseppe Tarantini, Maurizio D'Amico, Stefano Salizzoni, Fiorenzo Gaita
AIMS: Safety and efficacy of single vs. dual antiplatelet therapy (DAPT) in patients undergoing TAVI remain to be addressed. METHODS AND RESULTS: All consecutive patients enrolled in the ITER registry were included. Patients undergoing TAVI discharged with aspirin alone were compared to those assuming DAPT before and after selection with propensity score with matching. Subgroup analysis was performed for those on OAT. Prosthetic heart valve dysfunction at follow-up was the primary end point whereas all cause death, cardiovascular death, bleedings, vascular complications and cerebrovascular accidents were the secondary ones...
September 5, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28856722/the-doppler-paradox
#11
Ioannis Ntalas, Júlia Karády, Stam Kapetanakis, Ronak Rajani
Obstructive prosthetic valve thrombosis (PVT) is a rare but severe complication that usually occurs in the presence of suboptimal anticoagulation. Although fluoroscopy is commonly used to detect abnormal leaflet motion as a surrogate marker for PVT, its inability to directly visualize adjacent tissue and valve physiology leaves it susceptible to miss clinically important PVT. In this manuscript, we report the case of a 54-year-old woman with a mechanical mitral valve who was admitted to our institute with exertional dyspnea...
August 30, 2017: Echocardiography
https://www.readbyqxmd.com/read/28855450/clinical-implication-of-transaortic-mitral-pannus-removal-during-repeat-cardiac-surgery-for-patients-with-mechanical-mitral-valve
#12
Byungjoon Park, Kiick Sung, Pyo Won Park
BACKGROUND: This study aimed to evaluate the safety and feasibility of transaortic mitral pannus removal (TMPR).Methods and Results:Between 2004 and 2016, 34 patients (median age, 57 years; 30 women) with rheumatic disease underwent pannus removal on the ventricular side of a mechanical mitral valve through the aortic valve during reoperation. The median time interval from the previous surgery was 14 years. TMPR was performed after removal of the mechanical aortic valve (n=21) or diseased native aortic valve (n=11)...
August 31, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28852976/experimental-study-of-right-ventricular-hemodynamics-after-tricuspid-valve-replacement-therapies-to-treat-tricuspid-regurgitation
#13
Yen Ngoc Nguyen, Munirah Ismail, Foad Kabinejadian, Chi Wei Ong, Edgar Lik Wui Tay, Hwa Liang Leo
The increased understanding of right heart diseases has led to more aggressive interventions to manage functional tricuspid regurgitation (FTR). In some cases of FTR, prosthetic valve replacement is typically considered when concomitant organic components or significant geometrical distortions are involved in the pathology of the tricuspid valve. However, little is known of the performance of current devices in the right heart circulation. In this study, a novel in vitro mock circulatory system that incorporated a realistic tricuspid valve apparatus in a patient-specific silicon right ventricle (RV) was designed and fabricated...
August 29, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28852678/the-risk-of-cardiac-device-related-infection-in-bacteremic-patients-is-species-specific-results-of-a-12-year-prospective-cohort
#14
Stacey A Maskarinec, Joshua T Thaden, Derek D Cyr, Felicia Ruffin, Maria Souli, Vance G Fowler
BACKGROUND: The species-specific risk of cardiac device-related infection (CDRI) among bacteremic patients is incompletely understood. METHODS: We conducted a prospective cohort study of hospitalized patients from October 2002 to December 2014 with a cardiac device (CD) and either Staphylococcus aureus bacteremia (SAB) or Gram-negative bacteremia (GNB). Cardiac devices were defined as either prosthetic heart valves (PHVs), including valvular support rings, permanent pacemakers (PPMs)/automatic implantable cardioverter defibrillators (AICDs), or left ventricular assist devices (LVADs)...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28847146/on-x-versus-st-jude-medical-mechanical-prosthesis-in-mitral-position-are-we-moving-forward-in-design-technology
#15
Ezzeldin A Mostafa, Ashraf A El Midany, Ahmed S Taha, Saeed R El Aasy, Ayman A Doghish, Ahmed Helmy, Sherif A Mansour, Ramy Khorshid, Hosam E Ashor, Yaser Elnahas, Mohammed Saffan
BACKGROUND: Continuous effort is still provided in designing optimal artificial heart valves with better hemodynamic function and reduced thromboembolic potential. The question is do we have moved forward toward this goal or not. METHODS: A prospective, randomized comparative study was done on 360 patients scheduled for elective mitral valve replacement. Patients were grouped into On-X group (n=180) who received On-X mechanical valve and SJM (n=180) who received St Jude mechanical valve...
July 28, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28838487/cardioscopically-guided-beating-heart-surgery-paravalvular-leak-repair
#16
Benoit Rosa, Zurab Machaidze, Margherita Mencattelli, Sunil Manjila, Borami Shin, Karl Price, Michael A Borger, Vinod Thourani, Pedro Del Nido, David W Brown, Christopher W Baird, John E Mayer, Pierre E Dupont
PURPOSE: There remains a paucity of direct visualization techniques for beating-heart intracardiac procedures. To address this need, we evaluated a novel cardioscope in the context of aortic paravalvular leaks (PVLs) localization and closure. DESCRIPTION: A porcine aortic PVL model was created using a custom-made bioprosthetic valve, and PVL presence was verified by epicardial echocardiography. Transapical delivery of occlusion devices guided solely by cardioscopy was attempted 13 times in a total of three pigs...
September 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28838477/transcatheter-mitral-valve-implantation-using-the-highlife-system
#17
Marco Barbanti, Nicolò Piazza, Sarah Mangiafico, Jean Buithieu, Sabine Bleiziffer, Giuseppe Ronsivalle, Salvatore Scandura, Angelo Giuffrida, Antonio Popolo Rubbio, Massimo Mazzamuto, Carmelo Sgroi, Rüdiger Lange, Corrado Tamburino
OBJECTIVES: This study is the first report of 2 cases of HighLife (HighLife, Paris, France) implantation in humans. BACKGROUND: Transcatheter mitral valve implantation represents a promising approach to treating mitral regurgitation in patients at increased risk of perioperative mortality. The HighLife transcatheter mitral valve is a 2-component system. The valve is implanted in the mitral position and is anchored by interacting and then reaching an equilibrium position with a previously positioned subannular implant...
August 28, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28828046/modern-use-of-echocardiography-in-transcatheter-aortic-valve-replacement-an-up-date
#18
Cristina Caldararu, Serban Balanescu
Echocardiography is the cornerstone in the diagnosis of any valvular heart disease. The accurate diagnosis of aortic stenosis, the left ventricle function and the other heart valves evaluation are currently done by ultrasound alone. Prosthetic valve choice and dimensions prior to implantation can be done solely by proper use of echocardiography. The emergence of new methods to cure aortic stenosis such as trans-catheter aortic valve replacement (TAVR) emphasized the diagnostic value of cardiac ultrasound. The usefulness of echocardiography in TAVR can be divided in the baseline assessment (common to patients treated by conventional surgery), intra-procedural guidance of valve deployment and post-procedural follow-up...
December 2016: Mædica
https://www.readbyqxmd.com/read/28826894/usefulness-of-mitral-valve-prosthetic-or-bioprosthetic-time-velocity-index-ratio-to-detect-prosthetic-or-bioprosthetic-mitral-valve-dysfunction
#19
Sushil Allen Luis, Lori A Blauwet, Himabindu Samardhi, Cathy West, Ramila A Mehta, Chris R Luis, Gregory M Scalia, Fletcher A Miller, Darryl J Burstow
This study aimed to investigate the utility of transthoracic echocardiographic (TTE) Doppler-derived parameters in detection of mitral prosthetic dysfunction and to define optimal cut-off values for identification of such dysfunction by valve type. In total, 971 TTE studies (647 mechanical prostheses; 324 bioprostheses) were compared with transesophageal echocardiography for evaluation of mitral prosthesis function. Among all prostheses, mitral valve prosthesis (MVP) ratio (ratio of time velocity integral of MVP to that of left ventricular outflow tract; odds ratio [OR] 10...
July 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28826332/prosthetic-valve-endocarditis-positron-emission-tomography-computed-tomography-as-a-new-golden-grail
#20
Wouter Holvoet, Imad Al Younis, Joan Gerard Meeder
Prosthetic valve endocarditis (PVE) is a serious infection with potentially fatal consequences. Early detection is crucial for successful management and outcome. The diagnosis of PVE is challenging and is based on the Duke criteria (DC) in which echocardiography plays a crucial role. However, transthoracic and transoesophageal echocardiography have less diagnostic value in PVE compared to native valve endocarditis. Combined computed tomography and fluorodeoxyglucose positron emission is a new technique providing improved diagnostic accuracy in PVE...
August 22, 2017: Acta Cardiologica
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