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The role of different types of infections in heart diseases is more important than commonly thought, with new and re-emerging infections (i.e., Mycobacterium tuberculosis). This review addresses the pathology of infective pericarditis, myocarditis, and endocarditis, mainly focusing on the significance of molecular techniques in the detection of infective agents. Molecular investigations represent important ancillary diagnostic tools and combined with other conventional approaches provide a more precise final diagnosis. A close collaboration and communication among cardiologists, cardiac surgeons, pathologists, and microbiologists is essential to ensure optimal diagnoses and management as well as a favorable impact on patient outcome.
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PMID:Cardiac infections: focus on molecular diagnosis. 2007 Nov 97

Hamburger, former colleague of Thomassen at the Veterinary School in Utrecht, and then professor of Physiology in Groningen, reviewed the career and merits of Thomassen. After graduation as veterinary surgeon (Utrecht 1869) Thomassen developped a succesful veterinary practice in Maastricht, in the neighbourhood of which city he was born. He attracted attention by his publications in foreign veterinary journals. In 1881 he was appointed as clinical teacher at his old school. Next to internal medicine, his teachings encompassed diagnostics, general therapy, pharmacology and history of veterinary medicine. His inquiring spirit led him to manifold investigations. His therapy of bovine actinomycosis by potassium-iodine (1885) was that succesful that the American government set up a committee of inquiry, that only could confirm the effectiveness. The field of nervous diseases in domestic animals was hardly developed at his time. His broad and systematic research on the pathology and etiology of laryngeal hemiplegia was masterly executed. It was followed by a great number of investigations on the disorders of the peripheral and central nervous system. He made himself familiar with the necessary technics of microscopical pathological investigation. He devoted his attention also to the emerging field of bacteriology and its clinical implications. He studied endocarditis acuta in the horse, bacterial nephritis in calves, chronic nephritis in horses, but especially tuberculosis. His transmission experiments showed reciprocal infectivity of tuberculosis between animals and man. Therefore, he could rightfully oppose Robert Koch, who proclaimed the non-infectivity of bovine tuberculosis for humans at the International Tuberculosis Congress in London of 1901. The author draws a contrasting picture of Thomassen's results with the poor surroundings at the Veterinary School in his days and the shortage of tools that he had at his disposal. His true genius and original mind could overcome those difficulties. His wide range of talents manifested itself in his cultivation of the art of singing, his language abilities and his historical writings on Dutch national history of the 16th century and on veterinary medicine in classical Antiquity. He was an excellent teacher and very much appreciated as speaker at international congresses.
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PMID:[Oration held at the occasion of the bestowal of the honorary doctor's degree to M. H. J. P Thomassen by the Senate of the University of Groningen on 21 June 1905]. 2064 35

Mihai Eminescu, the first great Romanian poet and a defining figure in Romanian culture, may be situated among the most important romantic bards of his times--Byron, Novalis, Holderlin, Hugo, Lamartine, and Leopardi. He was born to a family affected by tuberculosis and predisposed to mental disorders. Although Eminescu may have suffered from bipolar disorder and may have been killed by iatrogenic mercury poisoning, erysipelas, head trauma, or endocarditis, his final illness and death continue to be associated with the most stigmatized disease of those times, syphilis. This historical review addresses the pros and cons of arguments about the diseases from which Eminescu may have suffered, as well as their causes and consequences. The key question is whether syphilis was the disease that led to Eminescu's death. After reviewing medical hypotheses, we conclude that he suffered from bipolar disorder and died from mercury poisoning, an inadequate treatment administered as the result of an inaccurate diagnosis (syphilis). Hospitalized in inappropriate places and treated by incompetent physicians, he suffered not only physical, but moral, distress and died prematurely. According to a letter he sent to a friend, he rightly considered himself a sacrificed man.
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PMID:Medical controversies and dilemmas in discussions about the illness and death of Mihai Eminescu (1850-1889) Romania's national poet. 2144 37

Rapidly growing mycobacteria are non-tuberculous mycobacteria amply present in the environment. Although they are not usually pathogenic for humans, they are opportunistic in that they can cause disease in people with disadvantageous conditions or who are immunocompromised. Mycobacterium peregrinum, an opportunistic, rapidly growing mycobacteria, belongs to the M. fortuitum group and has been reported as responsible for human cases of mycobacteriosis. A case of M. peregrinum type III is herein reported as the first in Colombia. It presented as a disseminated disease involving a prosthetic aortic valve (endocarditis) in a seventeen-year-old girl with a well-established diagnosis of prosthetic aortic valve endocarditis who was referred for a surgical replacement. Due to a congenital heart disease (subaortic stenosis with valve insufficiency), she had two previous aortic valve implantation surgeries. One year after the second implantation, the patient presented with respiratory symptoms and weight lost indicative of lung tuberculosis. A chest X-ray did not show parenchymal compromise but several Ziehl-Neelsen stains were positive. An echocardiography showed a vegetation on the prosthetic aortic valve. In blood and sputum samples, M. peregrinum type III was identified through culture, biochemical tests and hsp65 gene molecular analysis (PRA). The patient underwent a valve replacement and received a multidrug antimycobacterial treatment. Progressive recovery ensued and further samples from respiratory tract and blood were negative for mycobacteria.
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PMID:Disseminated mycobacteriosis affecting a prosthetic aortic valve: first case of Mycobacterium peregrinum type III reported in Colombia. 2171 34

Vertebral osteomyelitis is a rare entity. Its diagnosis is often difficult because of nonspecific symptons and the high frequency of back pain in general population. Aetiologic diagnosis is essential in order to perform specific treatment. Thus, blood cultures, serology, and culture of samples obtained by bone biopsy are the basis of the diagnosis. Magnetic resonance imaging permits an accurate diagnosis showing neurological involvement when it is present. ESR and CRP are good outcome markers. Endocarditis must be suspected in patients with predisposing heart condition, heart failure, positive blood cultures and infectyions caused by gram-positive organisms. Indications of surgery are severe neurological involvement, spinal instability and drainage of big abscesses. In Spain, as well as bacteria, we should consider M. tuberculosis, B. melitensis, and fungi as a potential aetiologic agents causing the infection.
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PMID:[Infectious spondylodiskitis]. 2179 58

Mycobacterium tuberculosis (TB) is a major cause of death globally. TB is capable of infecting every organ in the body, and the heart is no exception. Tuberculous endocarditis (TBE) was first reported in 1892 and subsequently many other cases have been described, highlighting the significant morbidity and mortality associated with this manifestation of TB. TBE usually presents with miliary tuberculosis and most early cases were diagnosed on autopsy. With increasing application of prosthetic valve replacements in the treatment of infective endocarditis (IE), TB infections have begun to affect these as well as native valves. With the introduction of TB culture methods and drug therapy, the prognosis has improved. HIV and drug resistance are likely to make the management of TBE more difficult in the future. Large scale studies, both prospective and retrospective, are required to ascertain the true incidence of TBE whilst development of novel anti-TB therapy is also required to combat resistance. We present the first extensive literature review on TBE in over 75 years.
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PMID:Tuberculous endocarditis. 2302

Thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS) is a unique multisystem syndrome. It can present with either chronic or subacute infections. Tuberculosis (TB) is a chronic infection that has been reported to present with TTP-HUS as tuberculous endocarditis in the presence of immunodeficiency and implanted medical devices in regions where TB is endemic. Tuberculomas are space occupying lesions most commonly found in the brain in immunocompromised individuals. Herein, we present a rare association of tuberculosis with endocarditis manifesting as a tuberculoma and presenting as TTP-HUS in an immunocompetent patient and resident of the United States.
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PMID:Cardiac tuberculoma presenting as thrombotic thrombocytopenic purpura-hemolytic uremic syndrome. 2431 49

Obligate or facultative intracellular bacteria are fastidious organisms that do not or poorly grow on conventional culture media. Some of them may be the cause of frequent and potentially severe infections, such as tuberculosis (Myco- bacterium tuberculosis), community-acquired respiratory infections (Legionella spp., Mycoplasma pneumoniae, Chlamydia pneumoniae) or blood culture-negative endocarditis (Coxiella burnetii, Bartonella spp., Tropheryma whipplei). The objective of this paper is to provide a comprehensive summary of the available and recommended diagnostic tests for the detection of these fastidious organisms in clinical practice.
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PMID:[Diagnostic approach of intracellular bacteria and fastidious microorganisms]. 2554 73

Infectious thoracic aortitis is a rare disease, especially since the incidence of syphilis and tuberculosis has dropped in western countries. However, the risk to develop an infectious aortitis and subsequent mycotic aneurysm formation is still present, particularly in case of associated endocarditis, sepsis, and in immunosuppressive disorders. Moreover, the number of surgical and endovascular thoracic aortic repairs is continuously increasing, and infective graft complications are observed more frequently. Several etiopathogenetic factors may play a role in thoracic aortic and prosthetic infections, including hematogenous seeding, local bacterial translocation, and iatrogenous contamination. Also, fistulization of the esophagus or the bronchial tree is commonly associated with these diseases, and it represents a critical event requiring a multidisciplinary management. Knowledge on underlying micro-organisms, antibiotic efficacy, risk factors, and prevention strategies has a key role in the management of this spectrum of infectious diseases involving the thoracic aorta. When the diagnosis of a mycotic aneurysm or a prosthetic graft infection is established, treatment is demanding, often including a number of surgical options. Patients are usually severely compromised by sepsis, and in most cases they are considered unfit for surgery for general clinical conditions or local concerns. Thus, results of different therapeutic strategies for infectious diseases of the thoracic aorta are still burdened with very high morbidity and mortality. In this manuscript, we review the literature regarding the main issues related to thoracic infectious aortitis and aortic graft infections, and we report our personal series of patients surgically treated at our institution for these conditions from 1993 to 2014.
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PMID:Strategies to treat thoracic aortitis and infected aortic grafts. 2560 72

Acquired aneurysms of the sinus of Valsalva are rare. They are caused by infections such as tuberculosis, syphilis and endocarditis, as well as atherosclerosis and traumatic injury. They may be asymptomatic and incidentally discovered. We present a rare case of a large acquired calcified unruptured aneurysm of the right coronary sinus of Valsalva that was compressing the right ventricular outflow tract.
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PMID:Acquired Large Calcified Unruptured Sinus of Valsalva Aneurysm. 2610 86


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