1/7. pericardial effusion in a homeless man due to bartonella quintana.bartonella quintana may cause trench fever, endocarditis, bacillary angiomatosis, and chronic bacteremia, and a reemergence among homeless populations in cities has been noted. pericarditis from rickettsia conorii and coxiella burnetii infection has been described, but there have been no reports of pericarditis due to Bartonella spp. We report a case of pericardial effusion due to bartonella quintana in a homeless man, diagnosed on the basis of PCR detection of bartonella quintana in a pericardial biopsy sample and a fourfold rise in antibody titers. The patient recovered within 2 weeks with antibiotics active against bartonellae.- - - - - - - - - - ranking = 1keywords = trench fever, trench, fever (Clic here for more details about this article) |
2/7. From trench fever to endocarditis.The case of a 44 year old woman with infective endocarditis due to bartonella quintana, an organism long recognised to cause a condition known as trench fever, is reported. This case illustrates the lengthy differential diagnosis of "culture negative" endocarditis. In addition the presence of serological cross reactivity of Bartonella spp and chlamydia spp demonstrates the potential for misdiagnosis in these circumstances.- - - - - - - - - - ranking = 5keywords = trench fever, trench, fever (Clic here for more details about this article) |
3/7. Detection of bartonella quintana by direct immunofluorescence examination of blood smears of a patient with acute trench fever.We report a case of bartonella quintana acute symptomatic infection in a homeless man, presenting as a typical trench fever. B. quintana has been retrieved in erythrocytes in large clusters and in erythroblasts. Direct immunofluorescence of blood smears allows a rapid diagnosis.- - - - - - - - - - ranking = 5keywords = trench fever, trench, fever (Clic here for more details about this article) |
4/7. Autochthonous epidemic typhus associated with bartonella quintana bacteremia in a homeless person.trench fever, a louse-borne disease caused by bartonella quintana, is reemerging in homeless persons. Epidemic typhus is another life-threatening louse-borne disease caused by rickettsia prowazekii and known to occur in conditions of war, famine, refugee camps, cold weather, poverty, or lapses in public health. We report the first case of seroconversion to R. prowazekii in a homeless person of Marseilles, france. This was associated with B. quintana bacteremia. Although no outbreaks of typhus have been notified yet in the homeless population, this disease is likely to reemerge in such situation.- - - - - - - - - - ranking = 5.6050662926334E-7keywords = fever (Clic here for more details about this article) |
5/7. Bartonella (Rochalimaea) quintana endocarditis in three homeless men.BACKGROUND. Bartonella (Rochalimaea) quintana is the agent of trench fever and is transmitted by the body louse. We searched for this organism in three alcoholic homeless men with endocarditis. methods. blood samples were cultured on a human endothelial cell line and on blood agar. bacteria were identified by sequencing the amplified 16S ribosomal rna gene. The presence of bartonella in tissue was assessed by Gram's staining, immunostaining, and polymerase-chain-reaction amplification. Serologic studies for antibodies to bartonella species were performed by indirect immunofluorescence and Western immunoblotting. RESULTS. B. quintana was isolated from one patient in the blood-agar culture and from the other two patients in the endothelial-cell culture. The organism was also identified by both immunostaining and molecular techniques in the valvular vegetations from the three patients and in a cervical lymph node from one patient. The 16S ribosomal rna gene sequences of the three isolates were almost identical to that of the prototype strain of B. quintana. High titers of antibodies to B. quintana were detected in all three patients, but so were cross-reacting antibodies to chlamydia species. In all three patients studies were repeatedly negative for antibodies to the human immunodeficiency virus. CONCLUSIONS. B. quintana is a cause of endocarditis in homeless patients and may be serologically misdiagnosed as a chlamydial infection.- - - - - - - - - - ranking = 1keywords = trench fever, trench, fever (Clic here for more details about this article) |
6/7. Bartonella (Rochalimaea) quintana causing fever and bacteremia in an immunocompromised patient with non-Hodgkin's lymphoma.A 48-yr-old man with stage IV non-Hodgkin's lymphoma, became neutropenic following chemotherapy and developed a fever. His blood cultures were processed to enhance the yield of fastidious bacteria. A slow-growing, capnophilic Gram-negative rod was isolated. The febrile episode was treated with cefotaxime, imipenem and vancomycin and resolved. The bacterial isolate was identified as Bartonella (Rochalimaea) quintana by 16S-rDNA gene sequencing. The isolate showed 99.8% sequence homology with the type strain. This is the first isolation of Bartonella (Rochalimaea) quintana from a bacteremic patient in australia. This bacterium is a fastidious Gram-negative rod requiring prolonged culture for its isolation. patients with culture-negative pyrexia, especially immunocompromised patients, may need to be investigated for infection with this agent.- - - - - - - - - - ranking = 2.8025331463167E-6keywords = fever (Clic here for more details about this article) |
7/7. Bartonella (Rochalimaea) quintana infection in a seronegative hemodialyzed patient.bartonella quintana is a reemerging pathogen responsible for trench fever, endocarditis, bacteremia, and bacillary angiomatosis. We previously reported the first case of a patient with B. quintana-induced chronic adenomegaly, and here we present a report on a second patient. A hemodialyzed patient with sjogren's syndrome presented with mediastinal adenomegalies and secondary pancytopenia. All diagnostic investigations remained negative, except that a Bartonella-like microorganism was isolated from a bone marrow biopsy. The isolate was identified as B. quintana by a specific mouse polyclonal antibody and by determination of a partial gltA (citrate synthase-encoding) gene and 16S rRNA gene sequences. dna of the pathogen was also detected in the adenomegaly and in the serum of the patient by PCR amplification of the gltA gene. Anti-B. quintana antibodies were never detected in the patient's serum throughout the 12-month follow-up but were detected in the serum of the patient's cat. The patient's outcome was favorable after treatment with gentamicin. Chronic adenomegaly in seronegative patients is a new clinical entity due to B. quintana.- - - - - - - - - - ranking = 1keywords = trench fever, trench, fever (Clic here for more details about this article) |