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Prosthetic Valve

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https://www.readbyqxmd.com/read/28444279/trends-in-infective-endocarditis-in-california-and-new-york-state-1998-2013
#1
Nana Toyoda, Joanna Chikwe, Shinobu Itagaki, Annetine C Gelijns, David H Adams, Natalia N Egorova
Importance: Prophylaxis and treatment guidelines for infective endocarditis have changed substantially over the past decade. In the United States, few population-based studies have explored the contemporary epidemiology and outcomes of endocarditis. Objective: To quantify trends in the incidence and etiologies of infective endocarditis in the United States. Design, Setting, and Participants: Retrospective population epidemiology study of patients hospitalized with a first episode of endocarditis identified from mandatory state databases in California and New York State between January 1, 1998, and December 31, 2013...
April 25, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28444201/mitral-periprosthetic-leakage-contemporary-results-of-surgical-correction-at-a-single-centre%C3%A2
#2
Luca Botta, Benedetta De Chiara, Salvina Quattrocchi, Francesca Casadei, Francesco Borgia, Cristina Giannattasio, Antonella Moreo, Claudio Francesco Russo
OBJECTIVES: Mitral periprosthetic leakage (PPL) is a serious complication following valve replacement. Conflicting outcomes of surgical treatment have been reported in the presence of multiple previous cardiac operations and associated co-pathological conditions. METHODS: Sixty-five symptomatic patients (37 women, mean age 64.8 years) underwent conventional operations at our hospital from 2006 to 2015. Mitral PPL was the leading surgical indication, although associated procedures were included...
April 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28442174/microstructural-alterations-owing-to-handling-of-bovine-pericardium-to-manufacture-bioprosthetic-heart-valves-a-potential-risk-for-cusp-dehiscence
#3
J Mao, Y Wang, E Philippe, T Cianciulli, I Vesely, D How, J-M Bourget, L Germain, Z Zhang, R Guidoin
INTRODUCTION: Cross-linking and anti-calcification of prosthetic heart valves have been continuously improved to prevent degeneration and calcification. However, non-calcific structural deteriorations such as cuspal dehiscences along the stent still require further analysis. MATERIAL AND METHOD: Based upon the previous analysis of an explanted valve after 7 years, a fresh commercial aortic valve was embedded in poly(methyl methacrylate) (PMMA) and cut into slices to ensure the detailed observation of the assembly and material structures...
April 22, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28438326/transapical-transcatheter-aortic-valve-implantation-using-the-j-valve-system-a-1-year-follow-up-study
#4
Xiang Luo, Xu Wang, Xuan Li, Xin Wang, Fei Xu, Mingzheng Liu, Bing Yu, Fei Li, Minghui Tong, Wei Wang
OBJECTIVE: Transcatheter aortic valve implantation has become a routine procedure to treat screened inoperable or high-risk patients. In this study, we present the first outcome of echocardiographic midterm using a new second-generation transcatheter aortic valve implantation system, the J-Valve system (Jie Cheng Medical Technologies, Suzhou, China), in patients with aortic stenosis or aortic regurgitation. METHODS: From July 2014 to June 2015, 21 patients with isolated aortic valve disease at high risk for open surgery received transapical transcatheter aortic valve implantation using the J-Valve system...
March 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28431723/successful-biventricular-conversion-late-after-primary-one-and-one-half-ventricle-repair
#5
Takaya Hoashi, Masataka Kitano, Koji Kagisaki, Hajime Ichikawa
A 6-year-old girl with unbalanced atrioventricular septal defect, hypoplastic right ventricle, and severe common atrioventricular valve regurgitation developed patient-prosthetic mismatch. At 6 months old, she underwent primary one and one-half ventricle repair and replacement of left side atrioventricular valve. A catheter examination showed that her right ventricular end-diastolic volume increased from 39.4 mL/m(2) 1 year after to 70 mL/m(2) 3.5 years after the previous surgery. Thus, at the timing of redo left side atrioventricular valve replacement, she was converted successfully to biventricular circulation...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28430305/turbulence-measurements-in-an-axial-rotary-blood-pump-with-laser-doppler-velocimetry
#6
Chan Y Schüle, Klaus Affeld, Max Kossatz, Christian O Paschereit, Ulrich Kertzscher
BACKGROUND: The implantation of rotary blood pumps as ventricular assist devices (VADs) has become a viable therapy for quite a number of patients with end-stage heart failure. However, these rotary blood pumps cause adverse events that are related to blood trauma. It is currently believed that turbulence in the pump flow plays a significant role. But turbulence has not been measured to date because there is no optical access to the flow space in rotary blood pumps because of their opaque casings...
April 18, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28418306/management-of-bartonella-prosthetic-valve-endocarditis-without-cardiac-surgery
#7
Padmasayee Papineni, Aisling Carroll, Johannes Radvan, Carolyn Hemsley, John Chambers, Nicholas Cortes, Timothy Harrison, John L Klein
Two cases of Bartonella prosthetic valve endocarditis were cured when treated for 2 weeks with gentamicin and 3 months with doxycycline. Clinical cure correlated with decreased Bartonella antibody titers. This report suggests a strategy to monitor, treat, and cure Bartonella prosthetic valve endocarditis.
May 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28413185/comparison-of-the-long-term-outcomes-of-mechanical-and-bioprosthetic-aortic-valves%C3%A3-a-propensity-score-analysis
#8
Kenji Minakata, Shiro Tanaka, Nobushige Tamura, Shigeki Yanagi, Yohei Ohkawa, Shuichi Okonogi, Tatsuo Kaneko, Akihiko Usui, Tomonobu Abe, Mitsuomi Shimamoto, Yoshiharu Takahara, Kazuo Yamanaka, Hitoshi Yaku, Ryuzo Sakata
BACKGROUND: The aim of this study was to assess the long-term outcomes of aortic valve replacement (AVR) with either mechanical or bioprosthetic valves according to age at operation.Methods and Results:A total of 1,002 patients (527 mechanical valves and 475 bioprosthetic valves) undergoing first-time AVR were categorized according to age at operation: group Y, age <60 years; group M, age 60–69 years; and group O, age ≥70 years). Outcomes were compared on propensity score analysis (adjusted for 28 variables)...
April 12, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28410379/new-insights-into-valve-related-intramural-and-intracellular-bacterial-diversity-in-infective-endocarditis
#9
Andreas Oberbach, Nadine Schlichting, Stefan Feder, Stefanie Lehmann, Yvonne Kullnick, Tilo Buschmann, Conny Blumert, Friedemann Horn, Jochen Neuhaus, Ralph Neujahr, Erik Bagaev, Christian Hagl, Maximilian Pichlmaier, Arne Christian Rodloff, Sandra Gräber, Katharina Kirsch, Marcus Sandri, Vivek Kumbhari, Armirhossein Behzadi, Amirali Behzadi, Joao Carlos Correia, Friedrich Wilhelm Mohr, Maik Friedrich
AIMS: In infective endocarditis (IE), a severe inflammatory disease of the endocardium with an unchanged incidence and mortality rate over the past decades, only 1% of the cases have been described as polymicrobial infections based on microbiological approaches. The aim of this study was to identify potential biodiversity of bacterial species from infected native and prosthetic valves. Furthermore, we compared the ultrastructural micro-environments to detect the localization and distribution patterns of pathogens in IE...
2017: PloS One
https://www.readbyqxmd.com/read/28407024/the-prognosis-of-infective-endocarditis-treated-with-biological-valves-versus-mechanical-valves-a-meta-analysis
#10
Ende Tao, Li Wan, WenJun Wang, YunLong Luo, JinFu Zeng, Xia Wu
OBJECTIVE: Surgery remains the primary form of treatment for infective endocarditis (IE). However, it is not clear what type of prosthetic valve provides a better prognosis. We conducted a meta-analysis to compare the prognosis of infective endocarditis treated with biological valves to cases treated with mechanical valves. METHODS: Pubmed, Embase and Cochrane databases were searched from January 1960 to November 2016.Randomized controlled trials, retrospective cohorts and prospective studies comparing outcomes between biological valve and mechanical valve management for infective endocarditis were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28401448/the-changing-epidemiology-of-infective-endocarditis-in-the-twenty-first-century
#11
REVIEW
J Ambrosioni, M Hernandez-Meneses, A Téllez, J Pericàs, C Falces, J M Tolosana, B Vidal, M Almela, E Quintana, J Llopis, A Moreno, José M Miro
PURPOSE OF THE REVIEW: Infective endocarditis (IE) is a relatively infrequent infectious disease. It does, however, causes serious morbidity, and its mortality rate has remained unchanged at approximately 25%. Changes in IE risk factors have deeply impacted its epidemiology during recent decades but literature from low-income countries is very scarce. Moreover, prophylaxis guidelines have recently changed and the impact on IE incidence is still unknown. RECENT FINDINGS: In high-income countries, the proportion of IE related to prior rheumatic disease has decreased significantly and has been replaced proportionally by cases related to degenerative valvulopathies, prosthetic valves, and cardiovascular implantable electronic devices...
May 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28396914/-anticoagulation-in-patients-with-chronic-kidney-disease-recommendations-from-the-working-group-heart-kidney-of-the-german-cardiac-society-and-the-german-society-of-nephrology
#12
G Schlieper, V Schwenger, A Remppis, T Keller, R Dechend, S Massberg, S Baldus, T Weinreich, G Hetzel, J Floege, F Mahfoud, D Fliser
Indications for anticoagulation are thromboembolic events, prosthetic heart valves, and atrial fibrillation with a corresponding risk score. Clinical trials have excluded patients with advanced chronic kidney disease and these data cannot be always generalized to patients with chronic kidney disease. Non-vitamin K antagonist oral anticoagulants (NOACs) are mostly not recommended or are contraindicated in advanced stages of chronic kidney disease. Observational studies have shown that dialysis patients with atrial fibrillation do not profit from coumarin anticoagulants; prospective studies are lacking...
April 10, 2017: Der Internist
https://www.readbyqxmd.com/read/28396768/long-term-outcome-in-a-case-of-translocated-mitral-valve-replacement-for-massive-mitral-annular-calcification
#13
Go Kataoka, Kiyoharu Nakano, Ryota Asano, Atsuhiko Sato, Wataru Tatsuishi
Few reports have described long-term outcomes after translocated mitral valve replacement. We describe tips, potential pitfalls, and long-term outcome associated with the construction of a new mitral annulus and reinforcement of prosthesis attachment using a mitral prosthetic valve with an equine pericardial collar in a woman with extensive mitral valve calcification.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28395281/the-role-of-stress-echocardiography-in-valvular-heart-disease-a-current-appraisal
#14
James L Gentry Iii, Dermot Phelan, Milind Y Desai, Brian P Griffin
Stress echocardiography is a widely available, safe, low-cost, versatile imaging modality which is becoming increasingly recognized as a valuable tool in the assessment of patients with native and prosthetic left-sided valvular heart disease. It provides a quantitative assessment to help guide clinical decision-making when discordance exists between symptoms and severity of valve disease. Exercise (treadmill or bicycle) remains the preferred stress modality, but pharmacological augmentation with dobutamine can be used if needed...
April 11, 2017: Cardiology
https://www.readbyqxmd.com/read/28393786/prosthesis-patient-mismatch-what-cardiac-anesthesiologists-need-to-know
#15
REVIEW
Kathirvel Subramaniam, Soheyla Nazarnia
Prosthesis-patient Mismatch (PPM) is not uncommon with an incidence reported up to 70% after aortic valve (AV) replacement. Severe forms of PPM are less common (up to 20%); PPM can lead to increased short- and long-term morbidity and mortality. It is important to discriminate PPM from other forms of prosthetic valve dysfunction. Sometimes, prosthetic valve degenerative disease may coexist with PPM. Echocardiography plays an important role in the prevention and diagnosis of PPM. Preemptive strategies to prevent PPM include insertion of newer generation prosthetic valves with better hemodynamic characteristics, stentless prosthesis, aortic root enlargement to insert a larger prosthesis, aortic homograft, and transcutaneous AV implantation...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28389412/endocarditis-caused-by-anaerobic-bacteria
#16
M Kestler, P Muñoz, M Marín, M A Goenaga, P Idígoras Viedma, A de Alarcón, J A Lepe, D Sousa Regueiro, J M Bravo-Ferrer, M Pajarón, C Costas, M V García-López, C Hidalgo-Tenorio, M Moreno, E Bouza
BACKGROUND: Infective endocarditis (IE) caused by anaerobic bacteria is a rare and poorly characterized disease. Most data reported in the literature are from case reports [1-3]. Therefore, we assessed the situation of anaerobic IE (AIE) in Spain using the database of the Spanish Collaboration on Endocarditis (GAMES). METHODS: We performed a prospective study from 2008 to 2016 in 26 Spanish centers. We included 2491 consecutive cases of definite IE (Duke criteria)...
April 5, 2017: Anaerobe
https://www.readbyqxmd.com/read/28386054/acute-myocardial-infarction-due-to-coronary-artery-embolism-in-a-22-year-old-woman-with-mitral-stenosis-with-atrial-fibrillation-under-warfarinization-successful-management-with-anticoagulation
#17
Santosh Kumar Sinha, Mukesh Jitendra Jha, Mahmadula Razi, Vikash Chaturvedi, Yatish Besthenahalli Erappa, Shravan Singh, Vikas Mishra, Dibbendhu Khanra, Karandeep Singh
BACKGROUND Coronary artery embolization is an exceedingly rare cause of myocardial infarction, but a few cases in association with prosthetic mechanical valves have been reported. We report a case of embolic myocardial infarction caused by a thrombus in the left atrium with deranged coagulation profile in a patient with critical mitral stenosis under warfarinization. CASE REPORT A 22-year-old woman was taken to the catheterization lab for early coronary intervention in lieu of non-ST elevation myocardial infarction...
April 7, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28379513/five-year-echocardiographic-follow-up-after-tavi-structural-and-functional-changes-of-a-balloon-expandable-prosthetic-aortic-valve
#18
Manuela Muratori, Laura Fusini, Gloria Tamborini, Paola Gripari, Sarah Ghulam Ali, Massimo Mapelli, Franco Fabbiocchi, Piero Trabattoni, Maurizio Roberto, Marco Agrifoglio, Francesco Alamanni, Antonio L Bartorelli, Mauro Pepi
Aims: Scarce data are available on the long-term structural and functional changes of prosthetic valves after transcatheter aortic valve implantation (TAVI). The objective was to evaluate with echocardiography the long-term structural and functional changes of prosthetic valves after TAVI. Methods and results: Structural valve deterioration (SVD) was defined as leaflet thickening ≥3mm, presence of calcification and abnormal leaflet motion. Five-year echocardiographic follow-up was available in 96 out of 318 patients who underwent TAVI with a balloon-expandable device between April 2008 and December 2011...
March 30, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28372901/surgical-management-of-severe-damage-of-the-aortic-annulus
#19
REVIEW
Sossio Perrotta, Salvatore Lentini
Aortic annular erosion and abscess are serious complications of prosthetic aortic valve endocarditis and can be treated with aortic valve translocation and left ventricle outflow tract reconstruction. These two surgical techniques seem to have similar early postoperative outcomes, and their use can be considered an option after the failure of conventional surgical methods.
November 16, 2016: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28359556/valve-replacement-surgery-in-severe-chronic-kidney-disease
#20
Min Ho Ju, Sung-Ho Jung, Suk Jung Choo, Cheol Hyun Chung, Jae Won Lee, Joon Bum Kim
BACKGROUND: The impact of prosthetic choices in patients with severe chronic kidney disease (CKD) on long-term outcomes has not been well established. METHODS: The study involved 152 adult patients (61.6±14.1yrs.; 64 females) undergoing heart valve surgery who had stage 4 (n=87) or 5 CKD (end-stage; n=65) based on Kidney Disease Outcomes Quality Initiative Guidelines. To reduce the impact of selection bias between mechanical (n=92) and bio-prostheses groups (n=60), propensity score analyses were conducted...
March 22, 2017: International Journal of Cardiology
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