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Heart valves endocarditis

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https://www.readbyqxmd.com/read/28730981/bartonella-quintana-an-unrecognized-cause-of-infective-endocarditis-in-children-in-ethiopia
#1
Diana Tasher, Alona Raucher-Sternfeld, Akiva Tamir, Michael Giladi, Eli Somekh
Bartonella quintana endocarditis, a common cause of culture-negative endocarditis in adults, has rarely been reported in children. We describe 5 patients 7-16 years of age from Ethiopia with heart defects and endocarditis; 4 cases were caused by infection with B. quintana and 1 by Bartonella of undetermined species. All 5 patients were afebrile and oligosymptomatic, although 3 had heart failure. C-reactive protein was normal or slightly elevated, and erythrocyte sedimentation rate was high. The diagnosis was confirmed by echocardiographic demonstration of vegetations, the presence of high Bartonella IgG titers, and identification of B...
August 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28728659/a-systematic-review-of-infective%C3%A2-endocarditis-in-patients-with-bovine-jugular-vein-valves-compared-with-other%C3%A2-valve-types
#2
Ashutosh Sharma, Anita T Cote, Martin C K Hosking, Kevin C Harris
OBJECTIVES: The aim of this study was to systematically evaluate the incidence of infective endocarditis (IE) in right ventricle-to-pulmonary artery conduits and valves, comparing bovine jugular vein (BJV) valves with all others. BACKGROUND: Recent evidence suggests that the incidence of IE is higher in patients with congenital heart disease who have undergone implantation of BJV valves in the pulmonary position compared with other valves. METHODS: Systematic searches of published research were conducted using electronic databases (MEDLINE, Embase, and CINAHL) and citations cross-referenced current to April 2016...
July 24, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28723794/thrombosis-and-antiphospholipid-antibody-syndrome-during-acute-q-fever-a-cross-sectional-study
#3
Matthieu Million, Nathalie Bardin, Simon Bessis, Nadia Nouiakh, Charlaine Douliery, Sophie Edouard, Emmanouil Angelakis, Annick Bosseray, Olivier Epaulard, Stéphanie Branger, Bernard Chaudier, Karine Blanc-Laserre, Nicole Ferreira-Maldent, Elisa Demonchy, France Roblot, Jacques Reynes, Felix Djossou, Camelia Protopopescu, Patrizia Carrieri, Laurence Camoin-Jau, Jean-Louis Mege, Didier Raoult
Q fever is a neglected and potentially fatal disease. During acute Q fever, antiphospholipid antibodies are very prevalent and have been associated with fever, thrombocytopenia, acquired heart valve disease, and progression to chronic endocarditis. However, thrombosis, the main clinical criterion of the 2006 updated classification of the antiphospholipid syndrome, has not been assessed in this context. To test whether thrombosis is associated with antiphospholipid antibodies and whether the criteria for antiphospholipid syndrome can be met in patients with acute Q fever, we conducted a cross-sectional study at the French National Referral Center for Q fever...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28720119/calcified-amorphous-tumor-of-the-heart-with-mitral-annular-calcification-a-case-report
#4
Ryo Nakamaru, Hiroki Oe, Katsuomi Iwakura, Takafumi Masai, Kenshi Fujii
BACKGROUND: Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques do not specifically differentiate calcified amorphous tumor from other cardiac tumors such as calcified atrial myxoma, calcified thrombi, or vegetation. Complete surgical resection is the treatment of choice for both symptom improvement and prevention of embolization, as well as for pathological diagnosis...
July 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28719311/infective-endocarditis-in-french-west-indies-a-13-year-observational-study
#5
Elisabeth Fernandes, Claude Olive, Jocelyn Inamo, François Roques, André Cabié, Patrick Hochedez
We conducted an observational study to describe the characteristics of infective endocarditis (IE) in French West Indies (FWI) and to identify variables associated with in-hospital case fatality. The records of the patients admitted for IE to the University Hospital of Martinique between 2000 and 2012 were collected using an electronic case report form. Only Duke-Li definite cases were considered for this analysis. Variables associated with in-hospital mortality were tested using univariate logistic regression analysis...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28713108/current-prescribing-practices-for-antibiotic-prophylaxis-a-survey-of-dental-practitioners
#6
Leah S Spittle, Kathleen B Muzzin, Patricia R Campbell, Janice P DeWald, Francisco Rivera-Hidalgo
AIM: Antibiotic prophylaxis guidelines have been developed for health care and dentistry. The authors examined whether dentists were following the 2007 American Heart Association (AHA) and the 2012 American Association of Orthopaedic Surgeons (AAOS) recommendations for antibiotic prophylaxis. MATERIALS AND METHODS: A survey was sent to 600 dentists in the south-central region of the United States. The survey examined dentists' prescribing practices for patients with cardiac and prosthetic joint replacements, antibiotic regimen prescribed, confidence in their prescription decisions, and dentistry's contribution to antibiotic resistance...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28707745/survival-of-the-fetus-during-maternal-thoracotomy-under-cardiopulmonary-bypass-for-infective-endocarditis
#7
Li Luo, Qiulei Sun, Liping Chen, Demei Ying, Xiaohua Wu, Zhengqiong Chen
Infective endocarditis (IE) during pregnancy is a rare but serious condition. Cardiopulmonary bypass during pregnancy has a high rate of fetal morbidity and mortality. We here report the case of a 22-year-old pregnant woman with confirmed IE. Multiple large cardiac valve vegetations, severe aortic valve regurgitation, and hemodynamic compromise were observed. With full implementation of fetal monitoring and protection strategies, open heart surgery was performed at 31.4 weeks' gestation to aid survival, followed by an elective cesarean delivery at 34...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28706868/tricuspid-valve-endocarditis
#8
Syed T Hussain, James Witten, Nabin K Shrestha, Eugene H Blackstone, Gösta B Pettersson
Right-sided infective endocarditis (RSIE) is less common than left-sided infective endocarditis (IE), encompassing only 5-10% of cases of IE. Ninety percent of RSIE involves the tricuspid valve (TV). Given the relatively small numbers of TVIE cases operated on at most institutions, the purpose of this review is to highlight and discuss the current understanding of IE involving the TV. RSIE and TVIE are strongly associated with intravenous drug use (IVDU), although pacemaker leads, defibrillator leads and vascular access for dialysis are also major risk factors...
May 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28706864/surgical-outcomes-of-isolated-tricuspid-valve-procedures-repair-versus-replacement
#9
Julius I Ejiofor, Robert C Neely, Maroun Yammine, Siobhan McGurk, Tsuyoshi Kaneko, Marzia Leacche, Lawrence H Cohn, Prem S Shekar
BACKGROUND: Isolated tricuspid valve (ITV) operations are infrequent and the decision to operate is controversial. We report a series of ITV operations to outline the current disease status requiring this uncommon procedure with an emphasis on the results of tricuspid valve repair (TVr) versus replacement (TVR). METHODS: Using our prospective cardiac surgery database, 57 patients who underwent ITV operations between 01/02-03/14 were identified. Median follow up time was 3...
May 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28698799/adults-with-repaired-tetralogy-low-mortality-but-high-morbidity-up-to-middle-age
#10
Mark Dennis, Ben Moore, Irina Kotchetkova, Lynne Pressley, Rachael Cordina, David S Celermajer
OBJECTIVE: Survival of patients with repaired tetralogy of Fallot (rToF) into young adulthood is very good. Concerns exist, however, over long-term morbidity and mortality as these subjects reach middle age. We aimed to assess survival and the prevalence of complications in patients with rToF seen in our Adult Congenital Heart Disease (ACHD) service. METHODS: One hundred and sixty-eight consecutive patients with 'simple rToF', aged over 16 years, followed up at our tertiary-level ACHD service in Sydney, Australia since 2000, were included...
2017: Open Heart
https://www.readbyqxmd.com/read/28683904/surgery-for-diseases-of-the-aortic-root
#11
REVIEW
Robbin G Cohen, Ramsey S Elsayed, Michael E Bowdish
The aortic root is the junction between the heart and aorta, containing the aortic valve and the coronary artery ostia. Various pathologic conditions arise in this region requiring complex surgical correction. These include aneurysmal dilatation with and without aortic regurgitation, acute aortic dissection extending below the sinotubular junction, and infective endocarditis with valve and periannular destruction. Multiple strategies for correction of these complex surgical issues exist, with excellent early results and long-term survival...
August 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/28680649/aorto-right-ventricular-fistula-a-rare-complication-of-abiotrophia-endocarditis
#12
Priyanka Bhattacharya, Aasim Mohammed, Eddy Mizrahi
A 41-year-old African male presented with worsening dyspnea and cachexia concerning for congestive heart failure. Transesophageal echocardiogram revealed a large mass attached to the aortic valve leaflet, mass attached to the flail anterior mitral valve leaflet, severe pulmonary hypertension and dilatation of the aortic root along with fistula between the right coronary aortic cusp and the right ventricular (RV) outflow tract. Blood cultures grew Abiotrophia Defectiva (AD) sensitive to vancomycin. Patient underwent emergent surgical closure of aorto RV fistula and aortic root replacement along with pulmonary and mitral valve replacement...
July 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28674625/gender-related-differences-in-self-reported-dental-care-in-adults-with-congenital-heart-disease-at-increased-risk-of-infective-endocarditis
#13
Susann Schmidt, Marlies Ramseier-Hadorn, Corina Thomet, Kerstin Wustmann, Markus Schwerzmann
OBJECTIVE: Adults with congenital heart disease (CHD) are at increased risk of infective endocarditis (IE). Women with CHD have a lower IE risk, potentially due to gender-related differences in dental care. We aimed to assess self-reported dental hygiene measures in adults with CHD, and to identify factors associated with good oral hygiene. METHODS AND RESULTS: Descriptive study includes 187 adults with CHD at increased risk of IE. The patients' IE knowledge was assessed using an adapted version of the Leuven Knowledge Questionnaire for CHD...
2017: Open Heart
https://www.readbyqxmd.com/read/28674029/atla-mediates-extracellular-dna-release-that-contributes-to-streptococcus-mutans-biofilm-formation-in-an-experimental-infective-endocarditis-rat-model
#14
Chiau-Jing Jung, Ron-Bin Hsu, Chia-Tung Shun, Chih-Chieh Hsu, Jean-San Chia
Host factors, like platelets, have been shown to enhance biofilm formation of oral commensal streptococci, inducing infective endocarditis (IE), but how bacterial components contribute to biofilm formation in vivo is still not clear. We previously demonstrated that an isogenic mutant strain of Streptococcus mutans deficient in autolysin AtlA (ΔatlA) showed reduced ability to cause vegetation in a rat model of bacterial endocarditis. However, the role of AtlA in bacterial biofilm formation is unclear. Herein, confocal laser scanning microscopy analysis showed the extracellular DNA (eDNA) embedded inside S...
July 3, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28671807/valvular-heart-disease-in-adults-infective-endocarditis
#15
Zubair A Khan, Steven M Hollenberg
A variety of microorganisms can cause infective endocarditis (IE) in patients with native valves. Staphylococci and streptococci are most common in community-acquired IE; staphylococci are most common in nosocomial IE. Microbiology of prosthetic valve endocarditis (PVE) depends on timing. Early-onset PVE (ie, 60 days or fewer postsurgery) typically is nosocomial, with Staphylococcus aureus infection being most common. Intermediate-onset PVE (ie, 60 to 365 days postsurgery) typically involves a mix of nosocomial and non-nosocomial organisms...
June 2017: FP Essentials
https://www.readbyqxmd.com/read/28671806/valvular-heart-disease-in-adults-management-of-prosthetic-heart-valves
#16
John F Trujillo, Steven M Hollenberg
Patients undergoing cardiac valve replacement may receive mechanical or bioprosthetic valves. Mechanical valves require lifelong anticoagulation but are durable and the need for a second surgery is up to eightfold times less than with bioprosthetic valves. Bioprosthetic valves do not require lifelong anticoagulation and thus are associated with fewer bleeding complications but they are less durable and associated with higher morbidity and mortality rates, particularly in younger patients. Anticoagulation with mechanical valves is achieved using warfarin; use of direct-acting oral anticoagulants is not indicated...
June 2017: FP Essentials
https://www.readbyqxmd.com/read/28671804/valvular-heart-disease-in-adults-etiologies-classification-and-diagnosis
#17
Steven M Hollenberg
The prevalence of valvular heart disease (VHD) in the United States was estimated to be approximately 2.5% in the 1990s. The prevalence currently is thought to be increasing because of more accurate diagnostic methods and aging of the population. Mitral regurgitation (MR) is the most common valve defect, followed by aortic stenosis (AS) and aortic regurgitation (AR). Degenerative disease is the most common etiology of MR, AS, and AR, though these forms of VHD also can be caused by congenital valve defects, systemic inflammatory diseases, endocarditis, and many other conditions...
June 2017: FP Essentials
https://www.readbyqxmd.com/read/28671788/-therapeutic-news-in-infective-endocarditis
#18
Stella Marchetta, Alessandra Iovino, Patrizio Lancellotti, Luc Piérard
The European recommendations for the management of infective endocarditis have been updated in 2015. The therapeutic modalities depend on both a better prevention in high-risk population, a faster diagnosis through new approaches in medical imaging, and interdisciplinary collaboration by an « endocarditis team. » Treatment involves antimicrobial therapy which can be complex, initially empirical and then targeted, depending on local infectious epidemiology, and whether the infringement affects a native or a prosthetic valve...
August 24, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28666146/intraleaflet-hemorrhages-are-a-common-finding-in-symptomatic-aortic-and-mitral-valves
#19
Olga C G Stam, Mat J A P Daemen, Jan Willem van Rijswijk, Bas A J M de Mol, Allard C van der Wal
INTRODUCTION: Intraleaflet hemorrhage (ILH) has been reported to occur in calcified degenerated aortic valves. At present, no such information is available for mitral valves or for other types of valvular disease. We examined the prevalence, age, and potential source of ILH in a consecutive series of surgically removed aortic and mitral valves, and related the findings to specific types of heart valve pathology. METHODS: A total of 105 aortic (n=85) and mitral (n=20) valves were retrieved from 100 symptomatic patients...
June 17, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28652669/early-postoperative-paravalvular-leak-among-egyptian-population-an-observational-study
#20
Noha Hassanin, Yasser Sharaf, Waleed Ammar, Amr Y H Sayed
OBJECTIVES: Several reports described the incidence of postoperative paravalvular leakage (PVL) early after valve replacement surgery, however, there is a paucity of data regarding the outcomes and complications correlated to the severity of PVL. The aim of the current study was to evaluate the incidence, causes, and short term outcome of early postoperative PVL. METHODS: Data were collected from patients presenting to the cardiovascular department at Cairo University Hospital for aortic and/or mitral valve replacement surgery from May 2014 to May 2015...
July 2017: Journal of the Saudi Heart Association
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