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Prosthetic Valve Endocarditis

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https://www.readbyqxmd.com/read/28418306/management-of-bartonella-prosthetic-valve-endocarditis-without-cardiac-surgery
#1
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/28410379/new-insights-into-valve-related-intramural-and-intracellular-bacterial-diversity-in-infective-endocarditis
#2
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
#3
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
#4
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/28389412/endocarditis-caused-by-anaerobic-bacteria
#5
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/28372901/surgical-management-of-severe-damage-of-the-aortic-annulus
#6
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/28348807/successful-treatment-of-listeria-monocytogenes-prosthetic-valve-endocarditis-using-rifampicin-and-benzylpenicillin-in-combination-with-valve-replacement
#7
Tasnim Hasan, William Chik, Sharon Chen, Jen Kok
Introduction.Listeria monocytogenes is an uncommon cause of prosthetic valve endocarditis (PVE). Recommended antimicrobial therapy typically includes intravenous β-lactams with or without synergistic aminoglycosides. In vitro studies have previously identified antagonism when rifampicin has been used in combination with β-lactams. However, in vivo data of rifampicin use are limited despite its enhanced anti-biofilm activity. Case presentation. A 63-year-old male presented with fever and back pain. L. monocytogenes bacteraemia and bioprosthetic aortic valve endocarditis was confirmed, along with spinal discitis and osteomyelitis...
February 2017: JMM Case Reports
https://www.readbyqxmd.com/read/28341191/-bacillus-cereus-endocarditis-and-a-probable-cutaneous-gateway
#8
S Soudet, C Becquart, F Dezoteux, K Faure, D Staumont-Salle, E Delaporte
BACKGROUND: Bacillus cereus is a ubiquitous telluric organism. B. cereus endocarditis is a rare condition seen mostly in prosthetic heart valves and among intravenous drug users. We report a new case of a patient without risk factors and with a good clinical outcome not requiring valve replacement. CASE REPORT: In October 2014, a 50-year-old woman was referred to the dermatology department of Lille University Hospital for lower-limb wounds developing 6 months earlier...
January 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28329276/demonstration-of-infective-endocarditis-by-cardiac-ct-and-transoesophageal-echocardiography-comparison-with-intra-operative-findings
#9
Hyun Jung Koo, Dong Hyun Yang, Joon-Won Kang, Joo Yeon Lee, Dae-Hee Kim, Jong-Min Song, Duk-Hyun Kang, Jae-Kwan Song, Joon Bum Kim, Sung-Ho Jung, Suk Jung Choo, Cheol Hyun Chung, Jae-Won Lee, Tae-Hwan Lim
Aims: We aimed to compare imaging findings of infective endocarditis between computed tomography (CT) and transoesophageal echocardiography (TEE) using surgical inspection as a reference standard. Methods and results: Forty-nine patients (aged 54 ± 17 years, 69% men) who underwent pre-operative CT and TEE for infective endocarditis were included. Twelve of these patients had prosthetic valve endocarditis. Imaging findings of infective endocarditis were classified as vegetation, leaflet perforation, abscess/pseudoaneurysm, and paravalvular leakage...
February 23, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329237/extensive-infective-endocarditis-of-the-aortic-root-and-the-aortic-mitral-continuity-a-mitral-valve-sparing-approach%C3%A2
#10
Anton Tomšic, Adriaan W Schneider, Meindert Palmen, Thomas J van Brakel, Michel I M Versteegh, Robert J M Klautz
OBJECTIVES: Severe cases of infective endocarditis (IE) of the aortic valve can cause aortic root destruction and affect the surrounding structures, including the aortic-mitral continuity, the anterior mitral valve leaflet and the roof of the left atrium. Reconstruction after resection of all infected tissue remains challenging. We describe our surgical approach and the mid-term results. METHODS: Between January 2004 and December 2015, 35 patients underwent surgery for extensive IE of the aortic valve with destruction of the aortic root, the aortic-mitral continuity and the mitral valve...
February 23, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329161/surgery-for-prosthetic-valve-endocarditis-a-retrospective-study-of-a-national-registry%C3%A2
#11
Alessandro Della Corte, Michele Di Mauro, Guglielmo Actis Dato, Fabio Barili, Diego Cugola, Sandro Gelsomino, Pasquale Santè, Antonio Carozza, Ester Della Ratta, Lorenzo Galletti, Roger Devotini, Riccardo Casabona, Francesco Santini, Antonio Salsano, Roberto Scrofani, Carlo Antona, Carlo De Vincentiis, Andrea Biondi, Cesare Beghi, Giangiuseppe Cappabianca, Michele De Bonis, Alberto Pozzoli, Francesco Nicolini, Filippo Benassi, Davide Pacini, Roberto Di Bartolomeo, Andrea De Martino, Uberto Bortolotti, Roberto Lorusso, Enrico Vizzardi, Gabriele Di Giammarco, Daniele Marinelli, Emmanuel Villa, Giovanni Troise, Domenico Paparella, Vito Margari, Francesco Tritto, Girolamo Damiani, Giuseppe Scrascia, Salvatore Zaccaria, Attilio Renzulli, Giuseppe Serraino, Giovanni Mariscalco, Daniele Maselli, Alessandro Parolari, Giannantonio Nappi
OBJECTIVES: We described clinical-epidemiological features of prosthetic valve endocarditis (PVE) and assessed the determinants of early surgical outcomes in multicentre design. METHODS: Data regarding 2823 patients undergoing surgery for endocarditis at 19 Italian Centers between 1979 and 2015 were collected in a database. Of them, 582 had PVE: in this group, the determinants of early mortality and complications were assessed, also taking into account the different chronological eras encompassed by the study...
March 13, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28327156/mycobacterium-goodii-endocarditis-following-mitral-valve-ring-annuloplasty
#12
Rohan B Parikh, Matthew Grant
BACKGROUND: Mycobacterium goodii is an infrequent human pathogen which has been implicated in prosthesis related infections and penetrating injuries. It is often initially misidentified as a gram-positive rod by clinical microbiologic laboratories and should be considered in the differential diagnosis. CASE PRESENTATION: We describe here the second reported case of M. goodii endocarditis. Species level identification was performed by 16S rDNA (ribosomal deoxyribonucleic acid) gene sequencing...
March 21, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28326754/supporting-imaging-modalities-for-improving-diagnosis-of-prosthesis-endocarditis-preliminary-results-of-a-single-center-experience-with-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#13
Anna Kokalova, Angelo M Dell'AQUILA, Nemanja Avramovic, Sven Martens, Christian Wenning, Jürgen R Sindermann
AIM: The aim of current study was to evaluate the role of PET-CT in the diagnosis of prosthetic valve endocarditis (PVE). METHODS: This is a single-center study including 13 PET/CT examinations performed between February 2009 and March 2016 in 13 patients (76.9% men, mean age 68.1 years, IQR 11.1) because of suspect of PVE. Median interval time between first operation and PET/CT examination was 19.02 months (lQR 85.5). Final diagnosis was made according to pathological criteria (histological and microbiological) of the Duke classification...
March 21, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28325766/staphylococcal-%C3%AE-toxin-modulates-human-aortic-endothelial-cell-and-platelet-function-through-sphingomyelinase-and-biofilm-ligase-activities
#14
Alfa Herrera, Katarina Kulhankova, Vijay K Sonkar, Sanjana Dayal, Aloysius J Klingelhutz, Wilmara Salgado-Pabón, Patrick M Schlievert
Staphylococcus aureus causes many infections, such as skin and soft tissue, pneumonia, osteomyelitis, and infective endocarditis (IE). IE is an endovascular infection of native and prosthetic valves and the lining of the heart; it is characterized by the formation of cauliflower-like "vegetations" composed of fibrin, platelets, other host factors, bacteria, and bacterial products. β-Toxin is an S. aureus virulence factor that contributes to the microorganism's ability to cause IE. This cytolysin has two enzymatic activities: sphingomyelinase (SMase) and biofilm ligase...
March 21, 2017: MBio
https://www.readbyqxmd.com/read/28298285/characterization-of-18-f-fluorodeoxyglucose-uptake-pattern-in-noninfected-prosthetic-heart-valves
#15
Cédric Mathieu, Nidaa Mikaïl, Khadija Benali, Bernard Iung, Xavier Duval, Patrick Nataf, Guillaume Jondeau, Fabien Hyafil, Dominique Le Guludec, François Rouzet
BACKGROUND: (18)F-Fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) has been recently acknowledged as a diagnostic tool for prosthetic valve endocarditis, but its specificity is limited by uptake on noninfected valves. The objective of this study was to outline the main features of FDG uptake on PET/CT in patients with noninfected prosthetic heart valve (PHV). METHODS AND RESULTS: Our institution's PET/CT database was reviewed to identify patients with PHV, excluding those suspected of infection or who had received antibiotic treatment...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28293002/-dehiscence-of-the-pericardial-patch-after-surgical-treatment-of-active-infective-aortic-valve-endocarditis-with-reconstruction-of-the-aortic-annulus-using-a-glutaraldehyde-treated-autologous-pericardium
#16
Kazufumi Yoshida, Naoto Fukunaga, Shigeki Koizumi, Kenta Nishiya, Yasuhiro Matsuda, Masanosuke Ishigami, Atsushi Nagasawa, Ryuzo Sakata, Tadaaki Koyama
A 50-year-old man was admitted with fever and chill sensation 6 months ago. Transthoracic echocardiography (TTE) showed left and right coronary cusp prolapses and a thickened tissue of the aortic curtain. Congestive heart failure due to active infective aortic valve endocarditis was diagnosed, and he underwent aortic valve replacement. The aortic annulus was reconstructed using a glutaraldehydetreated autologous pericardium. Six months after surgery, TTE showed severe aortic regurgitation and saccular change in the aortic annulus...
March 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28290176/valve-dehiscence-after-bentall-procedure-the-detrimental-traits-of-propionibacterium
#17
Robert A F de Lind van Wijngaarden, Richard van Valen, Jos A Bekkers, Ad J J C Bogers
The present case exemplified the detrimental traits of prosthetic valve endocarditis caused by Propionibacterium acnes. As a baby, the patient had a congenital cardiac defect with truncus arteriosus type I with interrupted aortic arch and open ductus Botalli, and had undergone several operations. However, at 18 months after a Bentall procedure performed 29 years later he presented with major prosthetic dehiscence due to endocarditis. The patient underwent a high-risk reoperation for a re-do Bentall procedure and was treated postoperatively with intravenous antibiotics consisting of vancomycin for five weeks and penicillin and rifampicin each for six weeks...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28290167/simple-interrupted-suturing-for-redo-mitral-valve-replacement
#18
Hiroshi Furukawa, Taishi Tamura, Takeshi Honda, Hiroki Takiuchi, Masahiko Kuinose, Kazuo Tanemoto
BACKGROUND: An evaluation was made of the early clinical outcomes and efficacies of simple interrupted suturing (SIS) for redo mitral valve replacement (MVR). METHODS: Among 336 mitral valve surgery patients at the authors' institution between April 2000 and May 2014, a total of 21 redo MVR using SIS (12 women, nine men; mean age 67±11 years; range 32-80 years) participated in the study. Surgical indications for redo MVR were paravalvular leakage (PVL) in 10 patients, prosthetic valve endocarditis in five, mechanical valve thrombosis in three, and structural valve deterioration (SVD) of the bioprosthesis in three...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28283005/-comparison-of-maldi-tof-and-16s-rrna-methods-in-identification-of-viridans-group-streptococci
#19
Serap Süzük Yıldız, Banu Kaşkatepe, Salih Altınok, Mustafa Çetin, Alper Karagöz, Sümeyra Savaş
Accurate identification of viridans group streptococci (VGS) frequently encountered as a causative agent of infective endocarditis is always a challenge for the clinical microbiology laboratory. Clinical microbiology laboratories generally use semi automatic/full automatic systems, molecular methods and also conventional methods for the identification of these bacteria. There are recent published studies that have used MALDI-TOF (Matrix Assisted Laser Ionization Mass Spectrometry-Time of Flight) systems in the identification of VGS...
January 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28272209/dissection-of-the-interventricular-septum-echocardiographic-features
#20
Xiaoyan Gu, Yihua He, Shurong Luan, Ying Zhao, Lin Sun, Hongjia Zhang, J V Ian Nixon
Dissection of the interventricular septum (IVS) is an extremely rare entity. An institutional echocardiographic database was retrospectively reviewed; 13 patients with a diagnosis of IVS dissection were found and confirmed by cardiac surgery. The purposes of the study were: to determine the value of transthoracic echocardiography (TTE) in establishing the diagnosis of IVS dissection, and to detail the TTE features of IVS dissection.Thirteen patients with IVS dissection diagnosed by TTE, 8 males and 5 females were taken from 789,114 TTE studies performed between 1985 and 2014...
March 2017: Medicine (Baltimore)
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