scholarly journals Corynebacterium CDC group G native and prosthetic valve endocarditis

2015 ◽  
Vol 7 (3) ◽  
Author(s):  
Adil Sattar ◽  
Siegfried Yu ◽  
Janak Koirala

We report the first case of native and recurrent prosthetic valve endocarditis with <em>Corynebacterium</em> CDC group G, a rarely reported cause of infective endocarditis (IE). Previously, there have been only two cases reported for prosthetic valve IE caused by these organisms. A 69-year-old female with a known history of mitral valve regurgitation presented with a 3-day history of high-grade fever, pleuritic chest pain and cough. Echocardiography confirmed findings of mitral valve thickening consistent with endocarditis, which subsequently progressed to become large and mobile vegetations. Both sets of blood cultures taken on admission were positive for <em>Corynebacterium</em> CDC group G. Despite removal of a long-term venous access port, the patient’s presumed source of line associated bacteremia, mitral valve replacement, and aggressive antibiotic therapy, the patient had recurrence of vegetations on the prosthetic valve. She underwent replacement of her prosthetic mitral valve in the subsequent 2 weeks, before she progressed to disseminated intravascular coagulation and expired. Although they are typically considered contaminants, corynebacteria, in the appropriate clinical setting, should be recognized, identified, and treated as potentially life-threatening infections, particularly in the case of line-associated bacteremias, and native and prosthetic valve endocarditis.

2019 ◽  
Vol 2019 ◽  
pp. 1-3 ◽  
Author(s):  
Alisha Khan ◽  
Thu Thu Aung ◽  
Debanik Chaudhuri

Gram-positive cocci species, notably Staphylococcus, Streptococcus, and Enterococcus account for 80 to 90% of infective endocarditis cases. HACEK microorganisms (Haemophilus spp., Aggregatibacter actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, and Kingella kingae) account for approximately 3% of cases and Candida species account for 1-2% of cases. Micrococcus luteus is a rare cause of endocarditis. To our knowledge, only 17 cases of prosthetic valve endocarditis have been described due to M. luteus and a single case of native aortic valve endocarditis has been described. The following case is the only documented case of native mitral valve endocarditis. A review of the literature pertaining to Micrococcus endocarditis was performed to further characterize the entity.


2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Umair Jangda ◽  
Ankit Upadhyay ◽  
Farshad Bagheri ◽  
Nilesh R. Patel ◽  
Robert I. Mendelson

NondiphtheriaCorynebacteriumspecies are often dismissed as culture contaminants, but they have recently become increasingly recognized as pathologic organisms. We present the case of a 48-year-old male patient on chronic prednisone therapy for rheumatoid arthritis with a history of mitral valve replacement with prosthetic valve. He presented with fever, dizziness, dyspnea on exertion, intermittent chest pain, and palpitations. Transesophageal echocardiography revealed two medium-sized densities along the inner aspect of the sewing ring and one larger density along the atrial surface of the sewing ring consistent with vegetation. Two separate blood cultures grewCorynebacterium propinquum, which were sensitive to ceftriaxone but highly resistant to vancomycin and daptomycin. The patient completed a course of ceftriaxone and repeat TEE study and after 6 weeks demonstrated near complete resolution of the vegetation. To our knowledge, this case represents the first in the literature ofCorynebacterium propinquumcausing prosthetic valve endocarditis. The ability of these organisms to cause deep-seated systemic infections should be recognized, especially in immune-compromised patients.


Antibiotics ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 38
Author(s):  
Marcin Wełnicki ◽  
Małgorzata Buksińska-Lisik ◽  
Artur Mamcarz

According to current European Society of Cardiology guidelines, for staphylococcal prosthetic valve endocarditis, rifampicin should be one of the drugs used. However, there is a concomitant need for vitamin K antagonists in patients with mechanical prostheses. It is widely known that rifampicin interacts with vitamin K antagonists (VKA), and this interaction makes it difficult to maintain the INR (international normalized ratio) value in the therapeutic range. We present two clinical cases of staphylococcal prosthetic valve endocarditis patients. Two different strategies for dealing with adverse drug interactions have been applied. In the first case, the dose of warfarin was up-titrated until the optimal INR value was obtained. In the second case, due to the history of labile INR values, a decision was made to modify the dosage of warfarin, taking into account pharmacological aspects of drug interactions.


2020 ◽  
Vol 8 ◽  
pp. 232470962096533
Author(s):  
Umaima Dhamrah ◽  
Keely Johnson ◽  
Aisha Amin ◽  
Maurice Policar

A 74-year-old male with a recent bioprosthetic mitral valve placement presented with dyspnea, chills, and palpitations. Blood cultures on admission grew extended spectrum β-lactamase Escherichia coli. Transthoracic echocardiogram and transesophageal echocardiography were negative for valvular vegetations, but given the recent history of mitral valve replacement and difficulty visualizing valvular vegetations in prosthetic valve, we initiated treatment of our patient with antibiotics for 6 weeks. Repeat blood cultures showed clearance of the organism and on follow-up, and the patient had no signs of recurrence of infection.


2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
E Parr ◽  
C Mcaloon ◽  
A Morley-Davis ◽  
P Ridley ◽  
S Duckett

Abstract Summary A 75 year old lady with a prosthetic aortic valve (St Jude mechanical AVR) presented to ophthalmology with a one month history of black spots in the vision of her left eye with a further episode in her right eye two weeks later, leading to a diagnosis of bilateral endogenous endopthalmitis and was admitted to hospital. There was no history of trauma and the chest and abdominal examination was normal. The erythrocyte sedimentation rate (40) and C reactive protein (45.8) were elevated. She had several sets of blood cultures, which were positive for Aggregatibacter actinomycetemcomitans, a HACEK organism and was started on empirical Ceftriaxone. The transthoracic echocardiography was normal. However, the suspicion of Infective Endocarditis (IE) was high, therefore a transoesophageal echocardiography was performed and showed an aortic root abscess (Image 1). An urgent computerised aortogram was performed. Following a planned two week period of intravenous antibiotics the patient was taken to theatre to have a redo AV valve replacement and root repair. Following a prolonged period on intensive care and a six week course of pathogen directed antibiotic therapy she was then fit enough to be discharged. Conclusion We present the first case in the literature of a HACEK Prosthetic Valve endocarditis presenting with bilateral endogenous endophthalmitis. Abstract P1247 Figure. TOE image of Absess


Pathogens ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1165
Author(s):  
Anke Hildebrandt ◽  
Annetta Zintl ◽  
Estrella Montero ◽  
Klaus-Peter Hunfeld ◽  
Jeremy Gray

Babesiosis is attracting increasing attention as a worldwide emerging zoonosis. The first case of human babesiosis in Europe was described in the late 1950s and since then more than 60 cases have been reported in Europe. While the disease is relatively rare in Europe, it is significant because the majority of cases present as life-threatening fulminant infections, mainly in immunocompromised patients. Although appearing clinically similar to human babesiosis elsewhere, particularly in the USA, most European forms of the disease are distinct entities, especially concerning epidemiology, human susceptibility to infection and clinical management. This paper describes the history of the disease and reviews all published cases that have occurred in Europe with regard to the identity and genetic characteristics of the etiological agents, pathogenesis, aspects of epidemiology including the eco-epidemiology of the vectors, the clinical courses of infection, diagnostic tools and clinical management and treatment.


2021 ◽  
Author(s):  
Qiteng Xu ◽  
Yueyi Ren ◽  
Yifei Hu ◽  
Shuhua Duan ◽  
Rui Chen ◽  
...  

Abstract BackgroundThe totally implantable venous access port (TIVAP) is a secure and practical choice for children undergoing long-term chemotherapy. Nevertheless, various complications still need to be treated cautiously. Among the complications, the migration of catheters to the thoracic cavity is a very rare (but potentially severe) condition that may necessitate device reimplantation. Furthermore, this migration may even be life-threatening if it is not detected in time.Case presentationA 1-year-old girl undergoing palliative chemotherapy underwent TIVAP placement via the right internal jugular vein. During the operating procedure, the catheter tip was located in the right atrium, which was confirmed by the use of C-arm. Prophylactic intravenous antibiotics were then adopted with routine aspiration and with flushing being conducted each time before administration. Massive right pleural effusion and migration of the catheter tip to the right thoracic cavity were detected on the 2nd day after implantation, which resulted in the removal and reimplantation of the TIVAP device.ConclusionsThe migration of the catheter into the thoracic cavity should be considered a possible complication of TIVAP implantation in children. Early detection and reimplantation may provide opportunities for the prevention of further severe complications.


2018 ◽  
Vol 47 (4) ◽  
pp. 166-169
Author(s):  
Daisuke Yano ◽  
Fumiaki Kuwabara ◽  
Shinji Yamada ◽  
Shinichi Ashida ◽  
Yuichi Hirate

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Yuji Itabashi ◽  
Hirotsugu Mihara ◽  
Javier Berdejo ◽  
Hiroto Utsunomiya ◽  
Ken Matsuoka ◽  
...  

Introduction: Mitral annuloplasty is performed to treat mitral valve regurgitation (MR) in lone atrial fibrillation (AF) patients. The mechanisms of the significant MR in lone AF patients are not known well. We assessed the hypothesis that absence of chordae tendineae near the mitral valve (MV) coaptation could lead to the significant functional MR in the lone AF patients. Methods: We analyzed 64 patients with a history of AF with greater than 50 % of the left ventricular (LV) ejection fraction, and no organic abnormality of MV. Of these 31 has mild or lesser MR (AF Groups) and 33 has moderate or severe MR (AFMR Group). We also analyzed 33 sinus rhythm patients with normal echocardiographic findings (Sinus Group). Parameters concerning to MV morphology were measured with commercial software. Chordae attaching points (CAPs) nearest from the coaptation line were detected on the anterior mitral leaflet (Figure). Ratio of the length from CAP to coaptation line against that from anterior annulus to coaptation line was calculated as CAP-C/An-C ratio. Results: Mitral annular area (P < 0.05), leaflets surface area (P < 0.05), and CAP-C/An-C ratio (P < 0.05) were larger in the AFMR Group as compared with the AF Group (Table). With multivariate analysis, the correlation factor of significant MR in AF patients was increase in the CAP-C/An-C ratio (Odds ratio (per 1 % increase) = 1.70; p <0.05). Conclusion: The absence of chordae tendineae near the coaptation line represented by larger CAP-C/An-C ratio is related to the functional MR in AF patients with normal LV function.


2005 ◽  
Vol 49 (2) ◽  
pp. 767-769 ◽  
Author(s):  
Varsha Moudgal ◽  
Tania Little ◽  
Dina Boikov ◽  
Jose A. Vazquez

ABSTRACT Echinocandins are approved for the treatment of candidal infections. In vitro they have been shown to be less potent against strains of Candida parapsilosis than against other Candida spp. This is the first case report describing the development of a secondary multidrug (echinocandin-azole)-resistant Candida strain during therapy.


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