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Infective endocarditis

E C F Wagenaar, P van Wijngaarden, C M Verduin, D Beelen, R W van Etten
Staphylococcus lugdunensis (SL) is a species belonging to the group of coagulase-negative staphylococci (CNS). It can cause severe infections such as endocarditis. Three cases of endocarditis caused by SL are presented. The first case describes a 71-year-old man with a fever and endogenous endophthalmitis. The second case describes delirium in an 87-year-old woman, thought to be due to pneumonia. The third case describes a 76-year-old man with an infection of unknown origin. In all cases, the first blood cultures drawn were positive for CNS and considered to be contaminated...
2016: Nederlands Tijdschrift Voor Geneeskunde
Bobby Yanagawa, Gosta B Pettersson, Gilbert Habib, Marc Ruel, Gustavo Saposnik, David A Latter, Subodh Verma
There has been an overall improvement in surgical mortality for patients with infective endocarditis (IE), presumably because of improved diagnosis and management, centered around a more aggressive early surgical approach. Surgery is currently performed in approximately half of all cases of IE. Improved survival in surgery-treated patients is correlated with a reduction in heart failure and the prevention of embolic sequelae. It is reported that between 20% and 40% of patients with IE present with stroke or other neurological conditions...
October 25, 2016: Circulation
Lemuel R Non, Carlos A Q Santos
BACKGROUND: Staphylococcus lugdunensis is a coagulase-negative staphylococcus with similar virulence characteristics as S. aureus. Whether S. lugdunensis causes infective endocarditis (IE) in a similar proportion of cases as S. aureus (reported to be 12.6% in a definitive multicenter prospective study) is unclear. METHODS: We conducted a retrospective cohort study of adult patients with at least one blood culture positive for S. lugdunensis at our institution from January 2006 to December 2014...
October 21, 2016: Journal of Infection
Bshara Mansour, Adib Habib, Nazih Asli, Yuval Geffen, Dan Miron, Nael Elias
Infective endocarditis is a rare condition in children with normal hearts. We present here a case of previously healthy eleven-year-old girl with infective endocarditis and pulmonary septic emboli caused by a very rare bacterial etiology (Lactococcus lactis). Identification of this pathogen was only made by polymerase chain reaction.
2016: Case Reports in Pediatrics
Eric Chan, Chris Hopkins
No abstract text is available yet for this article.
February 2016: Pathology
Tatiana J D Brandão, Carolina A Januario-da-Silva, Marcelo G Correia, Monica Zappa, Jaime A Abrantes, Angela M R Dantas, Wilma Golebiovski, Giovanna Ianini F Barbosa, Clara Weksler, Cristiane C Lamas
BACKGROUND: Infective endocarditis (IE) is a severe disease. Pathogen isolation is fundamental so as to treat effectively and reduce morbidity and mortality. Blood and valve culture and histopathology (HP) are routinely employed for this purpose. Valve HP is the gold standard for diagnosis. OBJECTIVES: To determine the sensitivity and specificity of clinical criteria for IE (the modified Duke and the St Thomas' minor modifications, STH) of blood and valve culture compared to valve HP, and to evaluate antibiotic treatment duration...
October 22, 2016: Infection
Hiroaki Osada, Hiroyuki Nakajima, Katsuaki Meshii, Motoaki Ohnaka
A 75-year-old man who had undergone ascending aorta replacement for acute Type A aortic dissection presented with a recurring high fever. Transesophageal echocardiography revealed that a vegetation had formed on the re-dissected intimal flap of the noncoronary sinus of Valsalva. This didactic case suggests that antibiotic prophylactic measures be considered for aortic dissection flaps as for irregular valves susceptible to infective endocarditis.
February 2016: Aorta (Stamford, Conn.)
Maria João Sousa, Vasco Alves, Sofia Cabral, Nuno Antunes, Luís Sousa Pereira, Filomena Oliveira, João Silveira, Severo Torres
Mitral valve aneurysms are rare and occur most commonly in association with aortic valve endocarditis. Transesophageal echocardiography is the most sensitive imaging modality for the diagnosis of this entity and its potential complications, such as leaflet rupture and mitral regurgitation, which mandate prompt surgical intervention. We present the case of a 70-year-old male patient with aortic valve endocarditis complicated with a ruptured aneurysm of the anterior mitral valve leaflet and associated severe mitral regurgitation, diagnosed by transesophageal echocardiography, with impressive images...
October 17, 2016: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
D J Murphy, A R Keraliya, M D Agrawal, A Aghayev, M L Steigner
Aortic infections are uncommon clinical entities, but are associated with high rates of morbidity and mortality. In this review, we focus on the cross-sectional imaging appearance of aortic infections, including aortic valve endocarditis, pyogenic aortitis, mycotic aneurysm and aortic graft infections, with an emphasis on CT, MRI and PET/CT appearance. Teaching Points • Aortic infections are associated with high morbidity and mortality. • CT, MRI and FDG PET/CT play complementary roles in aortic infection imaging...
October 19, 2016: Insights Into Imaging
Meki Bilici, Fikri Demir, Murat Muhtar Yılmazer, Fatma Bozkurt, Volkan Tuzcu
BACKGROUND: The clinical spectrum of Brucella infection is quite diverse and characterized by multi-system involvement. Patients present with myocarditis, endocarditis, or pericarditis. Infective endocarditis is the most common cardiovascular complication in patients with brucellosis. Although conduction abnormalities are seen in cases with endocarditis, they are reported very rarely in the setting of cardiac Brucella infection. CASE REPORT: An eight and a half-year-old male patient was referred to our clinic due to inadequate response to cotrimaxazole plus streptomycin treatment at the 15th day of admission...
September 2016: Balkan Medical Journal
Andre Paixao, Mehmet Cilingiroglu
Paravalvular leak (PVL) remains as uncommon but serious complication after surgical prosthetic valve implantation. PVL when associated which congestive heart failure, hemolytic anemia, or infective endocarditis may require percutaneous treatment. High-surgical risk is common in this population. Dedicated PVL devices are lacking often limiting optimal treatment.
October 2016: Catheterization and Cardiovascular Interventions
M Palaniappan, Padmini V Usha, P Balamurugan, Sree P Sanbaka, B Vetriveeran, Hrudya Venugopal, S Rajesh, M Gayathri, M Raveendran
We report a case of isolated native tricuspid valve infective endocarditis caused by Coagulase Negative Staphylococcus in a non-IV drug abuser without structural heart disease. Early diagnosis and prompt initiation of appropriate treatment saved the patient without surgical intervention. The recent trend of Coagulase Negative Staphylococci (CoNS) causing native valve endocarditis (NVE) is reviewed with literature.
July 2016: Journal of the Association of Physicians of India
Morgane Choquet, Emilie Pluquet, Sandrine Castelain, Raphaël Guihéneuf, Véronique Decroix
BACKGROUND: Aggregatibacter aphrophilus, a commensal of the oro-pharyngeal flora and member of the HACEK group of organisms, is an uncommonly encountered clinical pathogen. It has already been described as the causative agent of brain abscesses, empyema, meningitis, sinusitis, otitis media, bacteriemia, pneumonia, osteomyelitis, peritonitis, endocarditis and wound infections. Herein we report the first case of bartholinitis due to A. aphrophilus. CASE PRESENTATION: A 33-year-old woman was admitted for a 3-day genital pain without fever and urinary functional signs...
October 18, 2016: BMC Infectious Diseases
Kun Liu, Chunxia Yang, Yongna Zhang, Xunhui Yuan, Hang Xiao, Yun'an Bai, Bin Xi
Brain abscess is a rare but potentially lethal infection of brain parenchyma, requiring prompt surgical intervention and high-dose antibiotic therapy. Brain abscess is a known complication of surgically treated intracerebral hemorrhage (ICH), but it is exceptionally rare that it occurs at the same site of a nonoperated ICH. Such cases may result from hematogenous spread from distant foci (pneumonia, infectious endocarditis) or contiguous sites. Herein, the authors report a case of 75-year-old woman presenting with a brain abscess 6 weeks after a nonoperated ICH...
October 14, 2016: Journal of Craniofacial Surgery
Shaik Subhani, Amar N Patnaik, Ramachandra Barik, Lalita Nemani
Stenotrophomonas maltophilia is known for nosocomial habitat. Infective endocarditis due to this organism is rare and challenging because of resistance to multiple broad-spectrum antibiotic regimens. Early detection and appropriate antibiotic based on culture sensitivity reports are the key to its management. We report the diagnosis, treatment, and outcome of two cases of infective endocarditis caused by S. maltophilia.
September 2016: Indian Heart Journal
Rei-Yeuh Chang, Chien-Chang Chen, Wei-Pang Hsu, Pei-Ching Hsiao, Han-Lin Tsai, Ping-Gune Hsiao, Jiann-Der Wu, How-Ran Guo
BACKGROUND: Avulsion of the aortic valve commissure as a cause of acute aortic valve regurgitation is mostly due to trauma, infective endocarditis, or ascending aortic dissection. Nontraumatic avulsion of the aortic valve commissure is very rare. We reviewed the literature and analyzed potential risk factors of nontraumatic avulsion. CASE PRESENTATION: An 80-year-old male with hypertension was seen in the emergency department with acute onset dyspnea. Echocardiogram revealed left ventricular hypertrophy with adequate systolic function, prolapse of the noncoronary cusp, and incomplete coaptation of the right coronary and noncoronary cusps with severe aortic valve regurgitation...
October 2016: Medicine (Baltimore)
Marie-Paule Guillaume, François Dubos, François Godart
We report the case of a 2-year-old boy with severe Langerhans cell histiocytosis who had tricuspid endocarditis caused by Staphylococcus lugdunensis and required surgery despite appropriate antimicrobial therapy. Through this case and literature review of endocarditis caused by S. lugdunensis in children, we highlight pitfalls and mistakes to be avoided in the management of this rare but serious infection.
October 17, 2016: Cardiology in the Young
Tsutomu Mito, Yusuke Hirota, Shingo Suzuki, Kazutaka Noda, Takanori Uehara, Yoshiyuki Ohira, Masatomi Ikusaka
A 65-year-old Japanese man was admitted with a 4-month history of fatigue and exertional dyspnea. Transthoracic echocardiography revealed a vegetation on the aortic valve and severe aortic regurgitation. Accordingly, infective endocarditis and heart failure were diagnosed. Although a blood culture was negative on day 7 after admission, a prolonged blood culture with subculture was performed according to the patient's history of contact with cats. Consequently, Bartonella henselae was isolated. Bartonella species are fastidious bacteria that cause blood culture-negative infective endocarditis...
2016: Internal Medicine
Azusa Murata, Kenji Inoue, Sonomi Maruyama, Shigekazu Iguchi, Manabu Sugita, Makoto Hiki, Shinya Okazaki, Iwao Okai, Yasumasa Fujiwara, Masataka Sumiyoshi, Taira Yamamoto, Atsushi Amano, Masao Daimon, Hiroyuki Daida
A healthy teenage Japanese girl was admitted to our hospital after experiencing out-of-hospital cardiac arrest. She had attempted to commit suicide by taking 4,950 mg of disopyramide and 12 mg of flunitrazepam. Mechanical cardiopulmonary support was started with percutaneous cannulation of the femoral vessels. Several days later, a blood culture tested positive for Staphylococcus aureus. Transthoracic echocardiography showed a large mobile and solid mass attached to the apical part of the left ventricle. To the best of our knowledge, the anatomical location of a pedunculated mass originating from the apex is a rare condition...
2016: Internal Medicine
Anna Gomes, Andor W J M Glaudemans, Daan J Touw, Joost P van Melle, Tineke P Willems, Alexander H Maass, Ehsan Natour, Niek H J Prakken, Ronald J H Borra, Peter Paul van Geel, Riemer H J A Slart, Sander van Assen, Bhanu Sinha
Sensitivity and specificity of the modified Duke criteria for native valve endocarditis are both suboptimal, at approximately 80%. Diagnostic accuracy for intracardiac prosthetic material-related infection is even lower. Non-invasive imaging modalities could potentially improve diagnosis of infective endocarditis; however, their diagnostic value is unclear. We did a systematic literature review to critically appraise the evidence for the diagnostic performance of these imaging modalities, according to PRISMA and GRADE criteria...
October 13, 2016: Lancet Infectious Diseases
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