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Blood culture negative endocarditis

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https://www.readbyqxmd.com/read/27913565/a-24-year-old-male-with-a-painful-and-cold-lower-extremity
#1
Eric A Robinson, Zain I Khalpey, Rajesh Janardhanan
CLINICAL INTRODUCTION: A 24-year-old male presented to the emergency department with intense pain in his right lower extremity. He has a medical history significant for systemic lupus erythematosus and antiphospholipid syndrome. He also had four prior episodes of deep venous thromboses on rivaroxaban. The patient stated that early in the morning, he started to feel intense pain that started from his knee and progressed to his calf, with associated numbness and paraesthesia. On physical examination, the limb felt cold with absent right popliteal and dorsalis pedis pulses...
December 2, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27885468/staphylococcus-lugdunensis-infections-filling-in-the-gaps-a-3-year-retrospective-review-from-a-comprehensive-cancer-center
#2
Lior Nesher, Jeffery Tarrand, Roy F Chemaly, Kenneth Vi Rolston
OBJECTIVE: Staphylococcus lugdunensis is considered to be more aggressive than other coagulase-negative staphylococci (CoNS). There are gaps in knowledge regarding the importance of isolating S. lugdunensis from different sources and in different patient subsets. Our objective was to describe the spectrum, clinical manifestations, and outcomes of infections caused by S. lugdunensis in patients with cancer. METHODS: A retrospective review of all cancer patients from whom S...
November 24, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/27847068/afebrile-pannus-induced-blood-culture-negative-mechanical-valve-endocarditis
#3
Seiji Matsukuma, Kiyoyuki Eishi, Kazuyoshi Tanigawa, Takashi Miura, Ichiro Matsumaru, Kazuki Hisatomi, Akira Tsuneto
The diagnosis of prosthetic valve endocarditis may be challenging in patients with an atypical clinical presentation. Virtually all infections associated with mechanical prosthetic valves are localized to the prosthesis-tissue junction at the sewing ring and are accompanied by tissue destruction around the prosthesis. Because the orifice of the mechanical prosthetic valve is made of metal and pyrolytic carbon, which do not enable the adherence of microorganisms, any vegetation originating from the interior of the valve orifice is usually rare...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27844027/prosthetic-valve-endocarditis-caused-by-bartonella-henselae-a-case-report-of-molecular-diagnostics-informing-nonsurgical-management
#4
Patricia Bartley, Emmanouil Angelakis, Didier Raoult, Rangarajan Sampath, Robert A Bonomo, Robin L P Jump
Identifying the pathogen responsible for culture-negative valve endocarditis often depends on molecular studies performed on surgical specimens. A patient with Ehlers-Danlos syndrome who had an aortic graft, a mechanical aortic valve, and a mitral anulloplasty ring presented with culture-negative prosthetic valve endocarditis and aortic graft infection. Research-based polymerase chain reaction (PCR)/electrospray ionization mass spectrometry on peripheral blood samples identified Bartonella henselae. Quantitative PCR targeting the16S-23S ribonucleic acid intergenic region and Western immunoblotting confirmed this result...
October 2016: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/27803825/native-mitral-valve-endocarditis-caused-by-neisseria-elongata-subsp-nitroreducens-in-a-patient-with-marfan-syndrome-first-case-in-italy-and-review-of-the-literature
#5
Parrinello Rossella, Carità Patrizia, Triolo Fabio Oreste, Trapani Renato, Grassedonio Emanuele, Argano Vincenzo, Novo Giuseppina, Vallone Silvana, Fasciana Teresa, Verdecchia Massimo, Giammanco Anna, Midiri Massimo, Novo Salvatore
Neisseria elongata (NE) is an aerobic Gram-negative organism that constitutes part of the commensal human normal oropharyngeal flora. Although previously considered not to be pathogenic, it has been recognized as an occasional cause of significant infections in humans. We report here the first case in Italy of infective endocarditis of a native prolapsing mitral valve in a patient with Marfan syndrome, caused by NE subspecies nitroreducens which has been rarely isolated from clinical specimens. The culprit organism has been confirmed by mass spectrometry directly from the positive blood culture, as previously reported...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27781969/-a-blood-culture-containing-coagulase-negative-staphylococci-not-always-due-to-contamination
#6
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
https://www.readbyqxmd.com/read/27777118/the-occurrence-of-infective-endocarditis-with-staphylococcus-lugdunensis-bacteremia-a-retrospective-cohort-study-and-systematic-review
#7
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
https://www.readbyqxmd.com/read/27746451/bartonella-henselae-infective-endocarditis-detected-by-a-prolonged-blood-culture
#8
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
https://www.readbyqxmd.com/read/27741135/fatal-endocarditis-with-methicilin-sensible-staphylococcus-aureus-and-major-complications-rhabdomyolysis-pericarditis-and-intracerebral-hematoma-a-case-report-and-review-of-the-literature
#9
Anca Meda Georgescu, Leonard Azamfirei, Krisztina Szalman, Edit Szekely
BACKGROUND: Over the last decades Staphylococcus aureus (SA) has become the dominant etiology of native valve infective endocarditis, with the community-acquired methicillin-sensible Staphylococcus aureus (CA-MSSA) strains being the prevailing type. CASE: We report here a case of extremely severe CA-MSSA aortic valve acute endocarditis associated with persistent Staphylococcus aureus bacteremia (SAB) in a previously healthy man and include a literature review.The patient developed severe and rare complications (purpura, purulent pericarditis, intracerebral hematoma, and rhabdomyolysis) through systemic embolism; they required drainage of pericardial empyema and cerebral hematoma, the latter eventually caused a fatal outcome...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27738529/metastatic-calcinosis-of-aortic-valve-secondary-to-renal-failure-mimicking-infective-endocarditis
#10
Noman Ahmed Jang Khan, Masroor A Khan, Guillermo Juan Morell Chardon
End stage renal disease has a list of consequences, cardiovascular being the most common. Inefficient dialysis can cause significant deposition of calcium all over the body, including heart valves making heart function impaired. We illustrate a case of 38-year-old female with end stage renal disease on peritoneal dialysis. The patient had been complaining of pain and swelling of the right hand for the last few months and had been seen by hand surgeon and was admitted electively for the biopsy of hand lesions...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27716406/pseudomonas-mendocina-native-valve-infective-endocarditis-a-case-report
#11
Glenn J Rapsinski, Jina Makadia, Nitin Bhanot, Zaw Min
BACKGROUND: Gram-negative microorganisms are uncommon pathogens responsible for infective endocarditis. Pseudomonas mendocina, a Gram-negative water-borne and soil-borne bacterium, was first reported to cause human infection in 1992. Since then, it has rarely been reported as a human pathogen in the literature. We describe the first case of native valve infective endocarditis due to P. mendocina in the USA. CASE PRESENTATION: A 57-year-old white man presented with bilateral large leg ulcers, fever, and marked leukocytosis...
October 4, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27685880/culture-negative-infective-endocarditits-a-changing-paradigm
#12
A Daly, J M Redmond, M M Hannan
Traditionally, the modified Duke's criteria, based primarily on positive blood cultures, is used to diagnose Infective Endocarditis (IE). However, reports demonstrate that 31% of cases are diagnosed as Culture Negative Infective Endocarditis (CNIE)1. Consequently, empiric broad-spectrum antibiotics are prescribed to cover unidentified organisms and, as a result, antibiotic therapy may be compromised. Molecular diagnostic techniques aid with identifying causative organisms in cases of CNIE and we question if the increasing use of such technologies will change the local epidemiology of CNIE...
May 10, 2016: Irish Medical Journal
https://www.readbyqxmd.com/read/27678286/evaluation-of-empirical-treatment-for-blood-culture-negative-endocarditis
#13
Estelle Menu, Frédérique Gouriet, Jean-Paul Casalta, Hervé Tissot-Dupont, Maude Vecten, Ludivine Saby, Sandrine Hubert, Erwan Salaun, Alexis Theron, Dominique Grisoli, Cécile Lavoute, Frédéric Collart, Gilbert Habib, Didier Raoult
OBJECTIVES: Much progress has been made in understanding the main causes of blood culture-negative endocarditis (BCNE). Few studies concerning BCNE treatment (due to previous antibiotics used or fastidious pathogens) are available. We performed this study to evaluate the effectiveness of our therapeutic protocol in BCNE, based on compliance with the protocol, outcome and 1 year mortality. PATIENTS AND METHODS: We collected prospectively and analysed retrospectively cases of BCNE between 2002 and 2014, using a simplified and standardized protocol developed by our multidisciplinary team...
September 27, 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27660064/clinical-significance-of-coagulase-negative-staphylococci-other-than-s-epidermidis-blood-stream-isolates-at-a-tertiary-care-hospital
#14
Florian Hitzenbichler, Michaela Simon, Bernd Salzberger, Frank Hanses
PURPOSE: We retrospectively evaluated blood culture (BC) isolates of coagulase-negative staphylococci other than Staphylococcus epidermidis (NonSe-CoNS) for clinical relevance at a tertiary care hospital in Germany from January 2011 to September 2015. METHODS: Clinical data were correlated to microbiological results based on medical records. Infection was considered likely if (1) no other infection and (2) two or more isolates of the same species were present and (3) symptoms ameliorated after therapy...
September 22, 2016: Infection
https://www.readbyqxmd.com/read/27582414/infective-endocarditis
#15
Thomas L Holland, Larry M Baddour, Arnold S Bayer, Bruno Hoen, Jose M Miro, Vance G Fowler
Infective endocarditis (IE) is a rare, life-threatening disease that has long-lasting effects even among patients who survive and are cured. IE disproportionately affects those with underlying structural heart disease and is increasingly associated with health care contact, particularly in patients who have intravascular prosthetic material. In the setting of bacteraemia with a pathogenic organism, an infected vegetation may form as the end result of complex interactions between invading microorganisms and the host immune system...
2016: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/27571915/enigma-infection-or-allergy-vancomycin-induced-dress-syndrome-with-dialysis-dependent-renal-failure-and-cardiac-arrest
#16
Philip Simon Webb, Abdallah Al-Mohammad
A man aged 73 years with infective endocarditis presented with septic shock and was started on immediate antimicrobial therapy. His blood culture yielded no organism. Subsequently, he developed a severe allergic reaction to prolonged empirical vancomycin therapy. This manifested as fever, widespread maculopapular rash and severe progressive acute kidney injury ultimately requiring dialysis. In the context of eosinophilia, this was determined to be drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome...
August 29, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27555973/the-association-of-streptococcus-gallolyticus-subspecies-pasteurianus-bacteremia-with-the-detection-of-premalignant-and-malignant-colonic-lesions
#17
Gaurav Chand, Leonid Shamban, Adam Forman, Prabhat Sinha
Streptococcus gallolyticus subspecies (subsp.) gallolyticus (formerly bovis biotype I) bacteremia has been associated with colonic adenocarcinoma. The bovis species underwent reclassification in 2003. Subtypes of gallolyticus are associated with colonic malignancy but are less frequent, resulting in less awareness. A 71-year-old male admitted with worsening lower back pain and fevers. Initial vital signs and laboratory data were within normal limits. MRI revealed lumbosacral osteomyelitis and antibiotics were initiated...
2016: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/27514369/multiple-systemic-embolism-in-infective-endocarditis-underlying-in-barlow-s-disease
#18
Ziqing Yu, Bing Fan, Hongyi Wu, Xiangfei Wang, Chenguang Li, Rende Xu, Yangang Su, Junbo Ge
BACKGROUND: Systemic embolism, especially septic embolism, is a severe complication of infective endocarditis (IE). However, concurrent embolism to the brain, coronary arteries, and spleen is very rare. Because of the risk of hemorrhage or visceral rupture, anticoagulants are recommended only if an indication is present, e.g. prosthetic valve. Antiplatelet therapy in IE is controversial, but theoretically, this therapy has the potential to prevent and treat thrombosis and embolism in IE...
August 11, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27432095/infective-endocarditis-caused-by-panton-valentine-leukocidin-producing-methicillin-susceptible-staphylococcus-aureus-identified-by-the-broad-range-pcr-method
#19
Hiroshi Nakajima, Kaoru Dohi, Masaki Tanabe, Akiko Nakamura, Shinji Kanemitsu, Hideo Wada, Norikazu Yamada, Tsutomu Nobori, Hideto Shinpo, Masaaki Ito
A 76-year-old man was admitted to a community hospital due to a persistent high fever. He became afebrile after the administration of broad-spectrum antibiotics, but developed heart failure due to progressive aortic and mitral valve insufficiency and was transferred to our hospital. Although sequential blood cultures were negative, a broad-range polymerase chain reaction targeting the bacterial 16S-rRNA gene followed by the direct sequencing of whole blood revealed spa(+), mecA(-) and Panton-Valentine leukocidin (PVL)(+)...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27368042/tropheryma-whipplei-endocarditis-in-spain-case-reports-of-17-prospective-cases
#20
Lara García-Álvarez, María Mercedes Sanz, Mercedes Marín, MCarmen Fariñas, Miguel Montejo, Josune Goikoetxea, Raquel Rodríguez García, Arístides de Alarcón, Manuel Almela, Núria Fernández-Hidalgo, María Del Mar Alonso Socas, Miguel Ángel Goenaga, Enrique Navas, Luis Vicioso, José Antonio Oteo
Tropheryma whipplei endocarditis is an uncommon condition with very few series and <90 cases reported in the literature. The aim of the study was to analyze the epidemiological, clinical, and outcome characteristics of 17 cases of T. whipplei endocarditis recruited in our country from a multicentric cohort from 25 Spanish hospitals from the Spanish Collaboration on Endocarditis-Grupo de Apoyo al Manejo de la Endocarditis infecciosa en España.From a total of 3165 cases included in the cohort, 14.2% were diagnosed of blood culture negative endocarditis (BCNE) and 3...
June 2016: Medicine (Baltimore)
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