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Query: UMLS:C0014118 (endocarditis)
 15,629 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Twenty-nine patients with bacteremia due to Corynebacterium vaginale, an inhabitant of the female genital tract, are described. Four were newborn babies. Nineteen were healthy young women delivered at full term by an operative procedure, cesarean section, or episiotomy. Within 48 hours fever and bacteremia developed. While receiving antibiotics the fever returned to normal, usually within 48 hours. The remaining cases were associated with septic abortion, tubal pregnancy, an intrauterine device, hydatidiform mole, and cellulitis. None of the adults showed evidence of brain abscess, meningitis, or endocarditis. Corynebacterium vaginale is an opportunistic minor pathogen that apparently gains access to the blood stream via an exposed vascular bed rather than as the result of immunosupression.
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PMID:Corynebacterium vaginale (Hemophilus vaginalis) bacteremia: clinical study of 29 cases. 108 32

Meningitis caused by Streptococcus is uncommon in adults. Otitis media, mastoiditis, sinusitis, or trauma has antedated most cases reported in the past. Data on 10 recent cases suggest changes in the current pathogenesis of streptococcal meningitis in adults and emphasize the importance of accurate streptococcal speciation. Endocarditis was present in five cases; trauma played a role in two others. Brain abscess, corticosteroids, alcoholic cirrhosis, and peritonitis secondary to chronic peritoneal dialysis were etiologic factors in five patients. Otitis media, mastoiditis, and sinusitis were conspicuously absent. Streptococcus agalctiae accounted for purulent meningitis in two postmenopausal women. Both strains of group B Streptococcus were bacitracin-sensitive and were thus mislabeled group A. Recognition of Streptococcus bovis spared two patients unnecessary aminoglycoside adminstration. Nine of the 10 patients survived, including a women with prosthetic mitral valve endocarditis and a man with a ruptured brain abscess. Differentiation of these streptococci from Streptococcus pneumoniae was seldon possible on the basis of the spinal fluid gram stain alone.
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PMID:Meningitis caused by Streptococcus in adults. 109 75

Swabs taken from the vagina, cervix and urethra of 152 women without any clinical signs of infection were studied for the presence of group B streptococci. 36.8% of these women were found to have group B streptococci in their genital tract. Isolation of streptococci took place by way of enrichment and selective culturing, determination of biochemical criteria as well as serological grouping and typing. Streptococci of human or animal origin which may be identified by precipitating group B antiserum were found to be identical. There were no criteria for a differentiation between human and animal (bovine) group B strains. Epidemiological associations between human infections and the consumption of raw milk containing galt streptococci have never been confirmed. Group B streptococci are present indepently in animals and humans. In humans, they may be present as saprophytes in the throat and female genitals and also cause severe disease like endocarditis and meningitis. There is no proof of the etiologic role as an agent of zooanthroponoses.
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PMID:[Group B-streptococci in the female genitals (author's transl)]. 109 76

A brief account of the aims sought by multiple antibiotic management is followed by an assessment of the antagonism and synergism displayed by associations of two bactericidal antibiotics, two bacteriostatic antibiotics, and one bactericidal and one bacteriostatic antibiotic. Instances of synergism between bactericides (particularly penicillins and aminosides) are mentioned. Stress is laid on recent studies on the mechanism of action of antibacterial drugs showing unmistakeable synergism between trimethoprim and sulphamethoxazol and between chloramphenicol and tetracycline. The antagonism between bactericides and bacteriostatics noted by Jawetz et Al. has not been confirmed clinically in a number of reported series. The main indications for combined antiobiotic therapy are reviewed: endocarditis, purulent meningitis, staphylococcia, brucellosis, salmonellosis, shigellosis, other Gram-negative infections and fever in the course of blood diseases. References is made to personal experience in the management of 35 cases of bacterial endocarditis, 15 cases of purulent meningitis and various forms of serious Gram-negative infection. Leaving aside exceptional cases, the clinical effects of antibiotic associations are uncertain and influenced by too many variables. The technique is still of importance, however, despite the introduction of many new antibiotics. It must not be thought of as a handy method for indiscriminate use, however; its indications (which are summarised) are quite clear.
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PMID:[Further aspects of combination antibiotic therapy. Critical review and personal case studies]. 116 Nov 72

Forty patients had staphylococcal endocarditis and a history of parenteral drug abuse. Clinical and microbiologic features of their cases were evaluated. None of our patients were known to have had preexisting valvular disease. The tricuspid valve lesions and their pulmonary complications were the predominant findings. Systemic complications in the form of meningitis, glomerulonephritis, empyema, arthritis, and nosocomial Gram-negative septicemia occurred in 33% of our patients. Of interest was the high incidence of reactions to therapy especially with methicillin sodium, which occurred in 30% of patients. Correlation of phage type and group with the antibiotic sensitivities of individual staphylococci showed that group 3 and phage types 6, 42E, 54, and 75 were much more resistant to penicillin than other groups and types. The clinical outcome did not relate to phage type and group or to antibiotic sensitivity of the organism.
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PMID:Staphylococcal endocarditis in drug users. Clinical and microbiologic aspects. 120 Jul 24

Intrapartum haematogenous spread of vaginal group B Streptococcus is rare, but it can lead to severe complications like abscesses, endocarditis and meningitis postpartum. We report a postpartum periarticular hip abscess caused by group B Streptococcus. Clinically it caused pain in the hip and a compression of the femoral nerve with motor and sensory component. Diagnosis was made by aspiration under computed tomography control. The only sign of infection was an increased sedimentation rate. After antibiotic treatment the symptoms disappeared and the abscess vanished, but it was reactivated 4 months after delivery, leading to arthritis of the hip joint. Another antibiotic treatment was administered for 8 weeks. 17 months postpartum the patient is well, but a development of a secondary coxarthrosis can not be excluded.
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PMID:Postpartum periarticular hip abscess with later coxitis caused by group B streptococcus. 129 15

Enterococci isolated from different body sites were tested for high-level gentamicin resistance. A total of 139 enterococcal isolates were screened for resistance (minimum inhibitory concentration [MIC] greater than 2000 mg l-1) by a broth-tube method. Twenty-five (18%) were found to exhibit resistance and this was confirmed by agar screening (1000 mg l-1) and agar dilution MIC determinations. The majority of isolates also showed high-level resistance to kanamycin and streptomycin. The remaining isolates showed high-level resistance to gentamicin and kanamycin but not streptomycin. A retrospective clinical review was performed. Most patients had a source of definite or likely infection (78%). Serious infections such as endocarditis or meningitis were not observed during the course of this study. Retrospective clinical data suggest that in cases not involving endocarditis or meningitis, neither infection refractory to therapy nor relapse of infection is a common sequel to infection with gentamicin-resistant enterococci in hospitalized patients.
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PMID:Clinical isolates of enterococci with high-level resistance to currently available aminoglycosides. 1935 53

Over the period 1986 to 1989, 53 cancer patients were identified with catheter-related Staphylococcus aureus bacteremia at the University of Texas M.D. Anderson Cancer Center. Septic thrombosis was diagnosed in 12 (23%) patients and was suspected in another 3 (6%). Of the 12 patients, five developed deep-seated infections (septic emboli, endocarditis, meningitis, abscess), compared with 2 of the 38 other patients with no septic thrombosis (p < 0.01). Fever persisted for more than three days after antibiotic initiation in 52% of the patients with complications (septic thrombosis and/or deep-seated infections), compared with 19% of those without complications (p < 0.02). Of the three patients with complications who were treated for 14 days with intravenous antistaphylococcal antibiotics, two relapsed; in contrast, all of the nine patients with complications who were treated for more than 14 days (mean 4 weeks) were cured, and none relapsed (p < 0.05). Of the nine patients with complications who were treated with a long course of therapy, only one required surgery. The possibility of septic thrombosis and/or deep-seated infections should be considered in all cancer patients with catheter-related Staphylococcus aureus bacteremia, and if present, the condition should be treated with appropriate intravenous antibiotics for at least four weeks.
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PMID:Serious complications of vascular catheter-related Staphylococcus aureus bacteremia in cancer patients. 142 25

A 61 year old woman presented with back pain and clinical signs of meningitis. Pleocytosis in the cerebrospinal fluid was found, but although Streptococcus pneumoniae was cultured from her blood it failed to grow from the cerebrospinal fluid. An echocardiogram detected vegetations on the mitral valve and a lesion at S1/S2 was demonstrated on a bone scan. Treatment for one month with benzylpenicillin (1200 mg four hourly) was successful for both the cardiac and neurological components of her infection, but her back pain only resolved after treatment was changed to clindamycin. The clinical presentation and metastatic spread of the S pneumoniae infection is much more commonly seen in the context of S aureus endocarditis. It is rare for the pneumococcus to be associated with endocarditis and when it is mortality is usually high. This case shows the metastatic potential of the organism and the requirement for appropriate antibiotics with regard not only to the sensitivity of the organism, but also for the site of infection.
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PMID:Pneumococcal endocarditis and disseminated infection. 145 81

The proper dosage schedule of antibiotics has generally been determined empirically, due to the difficulty of clinical trials. Initially, the dosage was chosen to allow high sustained levels greater than MIC in the blood. Antibiotics (beta lactams, tetracyclins, macrolides) were given at high doses three to six times daily, whatever their kinetic properties. The data obtained by Eagle3 with beta lactams in animal models of streptococcal and treponemal infections outlined the importance of interval between doses on the in vivo efficacy. They also showed that increasing the dose of penicillin had a positive effect on the bactericidal activity only through the persistence of effective levels (greater than MIC) at the site of infection. Further illustrations were given through experimental and clinical studies with beta lactams or other compounds on different types of infections: LRTIs, UTIs, meningitis, and endocarditis. The importance of both dynamic (i.e., pattern of bactericidal effect) and kinetic (elimination half-life) parameters was thus further identified. Information on toxicity with some compounds with a narrow therapeutic index, such as aminoglycosides, indicated that increasing the dose to enhance efficacy had some limitations. This led to numerous studies on the relations between concentration and toxicity, stating that nephro- or ototoxicity were not directly related to peak level in serum. Experimental studies showed that OD administration of aminoglycosides was both more efficient and less toxic than the multiple-dose regimen of the same daily amount. Economic considerations progressively justified attempts to both reduce the dose and the work load related to multiple administrations.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Single-dose antibiotic therapy: what has the past taught us? 148 56


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