Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0014118 (endocarditis)
 15,629 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Penicillin--"tolerant" Staphylococcus aureus strains are resistant to the lethal action of penicillins, but are inhibited by normal (low) concentrations. They are deficient in autolytic enzyme activity which appears to be necessary for bacteriolysis and the lethal action of penicillins. This "deficiency" is caused by a large excess of an inhibitor of autolysin. Seven such tolerant strains have been isolated from blood, bone, or sputum of patients who responded poorly to penicillin treatment of endocarditis, osteomyelitis, or staphylococcal pneumonia. These isolates were of different phage-types, and most showed cross-tolerance to the killing action of cephalosporins or vancomycin, antibiotics to which they were sensitive (inhibited). They were killed at normal rates by gentamicin, cycloserine, and rifampicin. Population analysis indicated that the proportion of tolerant organisms within a resistant strain is 7% or less; their ability to inhibit autolytic activity within their own and neighbouring cells appears to account for the net decreased autolytic activity of the entire strain; 44% of the bacteraemic strains studied showed penicillin tolerance. Tolerance is thus a common, clinically important form of penicillin resistance, that differs from previously described forms of pencillin resistance, that due to beta-lactamase, and that due to "intrinsic" (e.g., methicillin resistance) mechanisms.
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PMID:A new type of penicillin resistance of Staphylococcus aureus. 6 61

A case of pneumococcal endocarditis in an infant is reported together with a review of seven cases previously described in the literature. The prominent presenting symptoms of this usually fatal disease consisted of tachycardia, tachypnea, and cardiomegaly. A new murmur was heard in six of the eight patients. Fever was infrequent. Blood cultures were positive when done. The mitral valve was the site of infection in seven of the patients. In contrast to adult patients, pneumonia and meningitis are rarely encountered in children with pneumococcal endocarditis. The disease was fatal in all four patients before the penicillin era and in three of four patients who received penicillin.
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PMID:Pneumococcal endocarditis in infants. 15 10

Aspergillus flavus vegetative endocarditis together with myocardial abscesses and pneumonitis developed in a patient with acute lymphocytic leukemia. The initial diagnosis was not suspected until 67gallium imaging revealed a radiographically undetectable thoracic abnormality. Despite apparently "early" diagnosis, antifungal therapy was inadequate to prevent disruption of the bundle of His, complete heart block and death.
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PMID:Aspergillus vegetative endocarditis and complete heart block in a patient with acute leukemia. 28 79

Actinobacilli infections in pigs are relatively rare. Most cases were septicaemic in the first week of life. With increasing age manifestations after generalized infections were characteristic, such as arthritis, polyarthritis, endocarditis, nephritis, osteomyelitis and embolic pneumonia. Of 34 porcine strains 33 were identified as A. equuli and only one was identical with A. suis. The justification of retaining this species is discussed.
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PMID:[Actinobacillus infections in swine (author's transl)]. 32 19

Eikenella corrodens is a gram-negative rod that has been identified as a cause of endocarditis, osteomyelitis, pneumonia, cellulitis, and other infections. Because it is difficult to grow unless it is incubated in 10% carbon dioxide and because it may be overgrown by other organisms, it can be overlooked as a sinus pathogen. This is a report of the isolation of E corrodens from the sinuses of three patients with sinusitis. Three important features of infection with E corrodens, which are illustrated by these cases, are as follows: (1) the indolence of E corrodens infections; (2) the unusual susceptibility pattern of E corrodens; and (3) the fact that E corrodens is often isolated in mixed culture. The purulent contents of sinus cavities should be cultured in aerobic, anaerobic, and 10% carbon dioxide atmospheres.
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PMID:Sinus infection due to Eikenella corrodens. 35 19

A prospective, double-blind study comparing a 6 day with a 2 day regimen of cephalothin prophylaxis was conducted among 200 patients undergoing prosthetic valve replacement. No cases of endocarditis occurred during the 2 month follow-up. Sternal wound infection developed in 2.8 per cent of the 6 day group and 2.1 per cent of the 2 day group. Pneumonia developed in 8.5 per cent of the 6 day and 5.3 per cent of the 2 day group; most of the bacteria isolated were susceptible to cephalothin. Urinary tract infection developed more frequently in the 2 day group (17.0 versus 8.5 per cent), particularly during the first 6 postoperative days. Three of 11 patients with no detectable cephalothin in their sera at the close of operation developed staphylococcal wound infections, compared with 2 of 175 patients whose sera contained cephalothin at the close of surgery (p = 0.002, Fisher's exact test). A short course of prophylactic antibiotics is prudent, but there is no justification for prolonging their administration.
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PMID:Cephalothin prophylaxis in cardiac valve surgery. A prospective, double-blind comparison of two-day and six-day regimens. 40 8

Although a common cause of infection in animals, group C streptococci are rarely noted to be pathogenic in man. A total of 150,000 blood cultures obtained at the Mayo Clinic from 1968 to 1977 revealed group C streptococci in only eight patients. Acute bacterial endocarditis, meningitis, pheumonia, cellulitis and bacteremia due to group C streptococci are described in a host who had undergone immunosuppression (immunosuppressed host), and the relatively few cases previously reported are reviewed. Although severe, these infections may respond favorably to penicillin therapy. Endocarditis caused by group D streptococci is acute and destructive, and associated with early cardiac decompensation. The manifestations of cellulitis and pneumonia are similar to those when group A streptococci are causative organisms. Meningitis due to group C streptococci is acute and severe, and responds slowly to antimicrobial therapy. Colonization also occurs.
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PMID:Infections due to group C streptococci in man. 43 51

Infectious mural endocarditis is uncommon and not well documented. The clinical setting and pathologic features of five patients with Aspergillus mural endocarditis are described. Leukemia, carcinoma, renal transplantation, and hepatic failure were the primary diseases. Associated conditions include high-dose corticosteroids, cytotoxic therapy, renal failure, gram-negative sepsis, and endotracheal intubation. All patients received prolonged antibiotic therapy or treatment with three or more antibiotics. All had clinically undetected aspergillosis and severe fungal pneumonia. Fungal myocardial abscesses were present in each patient. Aspergillus mural endocarditis developed in more than 40% of patients with cardiac aspergillosis. Endocardial vegetations were contiguous with underlying myocardial infection; yet they may develop initially as a subendocardial focus rather than from a myocardial abscess. Aspergillus mural endocarditis progressed to destroy the mitral valve ring and served as a source of mycotic embolization to vital organs.
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PMID:Aspergillus mural endocarditis. 45 81

Seven cases of adult Haemophilus parainfluenzae infections diagnosed by positive blood cultures are compared with cases previously reported in the English literature. Three patients had pneumonia, while the others had epiglottitis with meningitis, pharyngitis, arthritis, and endocarditis, respectively. Nonendocarditic manifestations of adult H parainfluenzae infection were reported in four other cases. In addition to the diseases of our patients, H parainfluenzae also has been isolated from cerebral abscesses. Patients did well with antibiotic therapy and there were no deaths. Patients did well with antibiotic therapy and there were no deaths. Report of antibiotic sensitivity testing of 50 strains disclosed 6% of isolates resistant to ampicillin sodium, with all sensitive to chloramphenicol. If the antibiotic sensitivity of the organism is unknown, then chloramphenicol therapy should be instituted until adequate susceptibility studies have been performed. If the organism is sensitive to ampicillin, then this is the drug of choice.
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PMID:Adult bacteremic Haemophilus parainfluenzae infections. Seven reports of cases and a review of the literature. 47 36

An autopsy case of a 69-year-old male with acute diffuse interstitial fibrosing pneumonitis complicated by bilateral renal cortical necrosis was presented. Autopsy revealed acute diffuse interstitial fibrosing pneumonitis, bilateral renal cortical necrosis, non-bacterial thrombotic endocarditis, involving the aortic and mitral valves, and some interesting vascular lesions, dissemination of fibrinoid change of arterioles and fibrin thrombus of small vessels in various organs; accumulation of polymorphonuclear leukocytes in the lumen of the smaller interlobular arteries and arterioles of the kidney with cellular infiltration and disintegration of the wall; severe disorganization of the wall with intraluminar and intramural fibrinous exudation in smaller branches of the hepatic artery; diminution and disarrangment of muscle fibers and patchy hyalinization in the media of the renal and interlobar arteries. The inter-relationship between acute diffuse interstitial fibrosing pneumonitis, bilateral renal cortical necrosis which may be regarded as a 'hallmark' of the generalized Shwartzman reaction, and disseminated intravascular coagulation was discussed.
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PMID:Acute diffuse interstitial fibrosing pneumonitis and bilateral renal cortical necrosis. 55 98


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