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排序方式: 共有125条查询结果,搜索用时 109 毫秒
21.
Disseminated intravascular coagulation (DIC) may complicate severe septicemia caused by Staphylococcus aureus. S. aureus can induce spontaneous platelet aggregation in vitro, the rapidity and degree of which correlates with the severity of DIC in patients with sepsis. Purified peptidoglycan from DIC isolates aggregated human platelets in the presence of staphylococcal protein A with significantly shorter aggregation times than did peptidoglycan from non-DIC isolates. Purified teichoic acid from DIC and non-DIC isolates failed to aggregate platelets in vitro, or in vivo in guinea pigs but inhibited the peptidoglycan-induced aggregation in a dose-response manner. These studies suggest that peptidoglycan may mediate S. aureus-induced spontaneous platelet aggregation in vitro and DIC in vivo. The variability among strains of S. aureus to induce DIC and platelet aggregation may depend on the unique composition of their peptidoglycan and perhaps also the extent of exposure or availability of cell wall teichoic acid. 相似文献
22.
Rifampin in the treatment of serious staphylococcal infections 总被引:2,自引:0,他引:2
Eight patients with serious staphylococcal infections such as endocarditis, meningitis, epidural abscess, shunt and graft infections were treated with nafcillin, cephalothin or vancomycin in combination with rifampin. In vitro antibiotic sensitivities demonstrated that the Staphylococcus aureus and Staphylococcus epidermidis were highly sensitive to rifampin with minimum inhibitory and bactericidal levels of .0078-.25 micrograms/ml. In all patients reviewed and reported, when serum bactericidal levels were measured before and after the addition of rifampin, there was a positive correlation between microbiological and clinical outcome. Thus, in selected patients with life-threatening infections caused by S. aureus and S. epidermidis rifampin should be considered an adjunctive therapy. 相似文献
23.
Seven adults with multiple brain abscesses were successfully treated with antibiotic therapy alone at The George Washington University Medical Center, Washington, D.C., during 1976-1981. Fever, meningismus, and focal neurologic signs were common presenting features. No patient presented with coma or obtundation. Etiologic agents were identified in only three cases. Computerized tomographic (CT) scans were valuable in diagnosing and monitoring the response to therapy. Decrease in the size of the lesions was noted two to nine weeks after initiation of antibiotic therapy. In all patients, clinical signs of improvement preceded evidence of resolution of lesions on CT scan. These results indicate that, in carefully selected patients in whom surgical drainage is not feasible because of the anatomic location and/or multiplicity of lesions, a prolonged course of high-dose intravenous antibiotics alone can lead to a successful outcome. 相似文献
24.
D Shamsuddin C U Tuazon H Miller A K Shamsuddin D Friedman 《Archives of pathology & laboratory medicine》1983,107(3):141-143
To study the natural course of catheter-induced endocarditis secondarily infected with Staphylococcus epidermidis, 29 rabbits had catheters introduced surgically through the carotid artery to the aortic valve. Forty-eight hours later the catheters were removed from five rabbits. The rabbits were inoculated intravenously with 10(8) colony-forming units of S epidermidis. Autopsies done at various intervals showed all rabbits with indwelling catheters had noticeable aortic valve vegetations with positive cultures for S epidermidis. In the group with catheters removed after 48 hours, less severe valvular lesions were noted. Metastatic seeding to kidneys, spleen, and liver were noted in both groups. Because of low cure rate in the treatment of S epidermidis endocarditis, this rabbit model could be used to study antibiotic regimens for valvular endocarditis. 相似文献
25.
John N. Sheagren Carmelita U. Tuazon Calvin Griffin Neville Padmore 《Arthritis \u0026amp; Rheumatology》1976,19(5):887-890
Sera from 55 parenteral drug abusers with endocarditis due to Staphylococcus aureus were assayed for the presence and titer of rheumatoid factor. Thirteen (24%) of the 55 patients with endocarditis had sera positive for rheumatoid factor at one point or another in their courses; only 2 (7%) of 30 noninfected drug users were found to be positive. It appeared that more severe cases, as evidenced by duration of fever after initiation of antibiotic therapy, were more likely to develop rheumatoid factor. 相似文献
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27.
G Watt L Padre M L Tuazon R D Theakston L W Laughlin 《The American journal of tropical medicine and hygiene》1988,38(3):618-622
The effects of tourniquet application were prospectively studied in 36 hospitalized patients who developed neurotoxic symptoms after bites by the Philippine cobra (Naja naja philippinensis). Tourniquets had been applied in 94% of cases and delayed the onset of symptoms. Four patients were asymptomatic prior to the release of their tourniquet and in 11 patients symptoms worsened precipitously. Most importantly, 4 patients developed complete respiratory paralysis requiring artificial ventilation on its removal. Medical personnel seeing patients after a possible cobra bite should remove any tourniquet very gradually with both specific therapy and ventilatory support at hand. We recommend tourniquet application in the Philippines only after the bite of a definitely identified cobra and when removal can take place under controlled hospital conditions. 相似文献
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29.
John Charles A. Lacson MS Joshua D. Carroll BA Ellenie Tuazon MPH Esteban J. Castelao MD PhD Leslie Bernstein PhD Victoria K. Cortessis MSPH PhD 《Cancer》2012,118(21):5374-5383