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Three case reports of infected subdural hematoma are presented, two with Salmonellae and one with Escherichia. Infection of such hematomas most often occurs during bacteremia, and the area of infection is limited by the existing hematoma membrane. Clincally, fever, headache, nuchal rigidity, and focal neurological signs, especially in a patient with previous head trauma, suggest subdural infection. Treatment consists of drainage and systemic antibiotics. These case reports demonstrate the clinical features of this rarely reported entity, and especially illustrate the need for careful bacteriologic identification in suspected cases.
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PMID:Infected subfural hematoma: three case reports involving gram-negative organisms. 109 3

Although amphotericin B (AB) is the primary therapeutic agent for cryptococcosis complicating the acquired immunodeficiency syndrome (AIDS), the total dose administered is extremely variable, and the end point of therapy has not been well defined. Since these patients require life-long suppressive therapy following the primary therapy, the definition of treatment "end point" becomes crucial. To delineate more effective treatment approaches, we reviewed the medical records of 48 patients with cryptococcosis complicating AIDS. Fever (81%) and headache (77%) were the predominant symptoms. A clinical response to AB (defervescence and resolution of symptoms) was noted in 46% of the febrile patients. The cumulative AB dose administered to the time of clinical response was variable (0.1-1.76 g), but was noted early in the majority of the patients (less than 0.4 g). Repeat fungal cultures from the initial positive site for Cryptococcus neoformans (CN), obtained after observation of the clinical response, were negative in 7/7 patients. Nosocomial bacterial infections were quite common and often complicated intravenous AB therapy. Bacteremias were documented in 10/14 febrile episodes occurring during AB therapy in the 22 patients with an initial clinical response. Bacteremias were identified in 6/21 patients who failed to defervesce with AB therapy. Staphylococcus aureus (N = 9) and Salmonella species (N = 2) were the most common pathogens causing bacteremia. An algorithm for the treatment of cryptococcosis complicating AIDS may shorten the duration of primary intravenous AB therapy. This might reduce secondary infectious complications and the costs of hospitalization.
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PMID:Optimal therapy of cryptococcosis in patients with the acquired immunodeficiency syndrome. 187 14

A 20-year-old man on oral substitution of pancreatic enzymes after hemipancreatectomy injected an enzyme preparation of fungal origin intravenously after dissolving it in water. Within a few hours chills, headache, nausea and vomiting, fever of 40.8 degrees C, and shock occurred. The acute illness might have been caused by bacteremia, an anaphylactic reaction, or by direct activation of humoral or cellular mediators by the fungal enzymes. A haemostatic disturbance, particularly a drop in plasminogen, was observed. In vitro, the fungal enzyme preparation stimulated elastase release from isolated neutrophils and eliminated plasmatic inhibitors and plasminogen in normal plasma and whole blood. Human neutrophil elastase complexed to alpha 1-antitrypsin was increased in the patient's plasma, while the levels of the complexes thrombin-antithrombinIII and plasmin-alpha 2-antiplasmin, indicating recent coagulation or fibrinolysis, respectively, were not elevated. Thus, an activation of the neutrophils with release of elastase might have contributed to the observed coagulation disturbances.
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PMID:A unique case of intravenous injection of fungal "pancreatic" enzymes causing shock and proteolysis of haemostatic proteins. 246 40

Ninety-four patients, 61 men and 33 women with a mean age of 54 years, were treated with intravenous ciprofloxacin. Eighty-one patients (86 percent) were in serious or fair condition. Pathogens included Enterobacteriaceae (74 patients), Pseudomonas sp. (23 patients), other gram-negative bacilli (five patients), staphylococci (19 patients), other gram-positive cocci (seven patients), and Rickettsia conorii (five patients). Thirty-eight patients were given parenteral therapy (ciprofloxacin at a mean daily dose of 200 mg every 12 hours, mean duration of therapy, nine days). Fifty-six patients were also given ciprofloxacin orally after initial intravenous therapy at a dose of either 500 or 750 mg every 12 hours (mean duration of therapy, 36 days). Another antibiotic was given concomitantly in 25 cases (27 percent). The overall clinical response was 93 percent and the bacteriologic response rate was 84 percent. There was no difference between patients treated by intravenous ciprofloxacin and those treated by intravenous ciprofloxacin followed by oral ciprofloxacin. Favorable responses (resolution of improvement) were observed in 39 of 42 patients (93 percent) with bacteremia, 28 of 30 (93 percent) with urinary tract infection, 10 of 13 (77 percent) with respiratory tract infection, 11 of 12 (92 percent) with bone and joint infection, three of three (100 percent) with skin and soft-tissue infection, nine of nine (100 percent) with intra-abdominal infection, three of three (100 percent) with typhoid fever, and two of two (100 percent) with meningitis. All five patients with R. conorii infections had a response to therapy. The adverse effects were minor and transient. Seven patients experienced clinical adverse effects: pain at the injection site (three patients), rash (two patients), and headache (2 patients). Serum transaminase levels were increased in 11 patients. Intravenously administered ciprofloxacin or intravenous ciprofloxacin followed by oral ciprofloxacin is a safe and effective therapy for serious infections.
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PMID:Treatment of serious infections with intravenous ciprofloxacin. French Multicenter Study Group. 268 26

We studied all patients with community-acquired pneumonia who were admitted to our 800-bed adult acute care hospital from 1 November 1981 to 15 March 1987. The 719 patients had a mean age of 63.2 years; 18% were admitted from nursing homes, and 18% required ventilatory assistance as part of the therapy for pneumonia. Patients with nursing home-acquired pneumonia were significantly older; had a higher mortality (40% vs. 17%); were more likely to be admitted in January; were less likely to complain of cough, fever, anorexia, chills, headache, nausea, sore throat, myalgia, or arthralgia; and were more likely to be confused than those admitted from the community. Pneumonia of unknown etiology and aspiration pneumonia were more common and Mycoplasma pneumoniae infection less common among those with nursing home-acquired pneumonia. Streptococcus pneumoniae accounted for 58% of the 48 cases of bacteremia. None of the bacteremic patients received antibiotics before admission, compared with 34% of the nonbacteremic patients. Aerobic gram-negative rod bacteremia was not more frequent among nursing home patients than among those from the community. The overall mortality was 21% (8.5% for those less than 60 years of age and 28.6% for those greater than 60 years old). By multivariate analysis the following variables were significant predictors of mortality: number of lobes involved by the pneumonic process, number of antibiotics used to treat the pneumonia, age, admission from a nursing home, ventilatory support, and the number of complications that occurred while the patient was in the hospital.
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PMID:Community-acquired pneumonia requiring hospitalization: 5-year prospective study. 277 65

Listeria monocytogenes is an uncommon cause of brain abscess. Of a total of 14 cases of L. monocytogenes brain abscess (one described for the first time and 13 reported previously in the English-language literature), seven (50%) occurred in patients with leukemia and recipients of renal transplants; four (29%) of the cases occurred in previously healthy individuals. Common clinical findings were similar to those in brain abscess due to other causes and included fever (57%), headache (57%), and focal neurologic signs (64%). Distinctive, however, was the unusually high frequency of associated meningitis and bacteremia; blood cultures were positive in all eight cases in which they were performed. Eight (57%) of the 14 patients died. L. monocytogenes should be included in the differential diagnosis of brain abscess in patients with leukemia and in renal transplant recipients. Listerial brain abscess is highly unlikely when blood culture results are negative.
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PMID:Brain abscess due to Listeria monocytogenes: case report and literature review. 309 64

Lumbar puncture has been in widespread clinical use for nearly a century. It is used in emergency medicine primarily as a tool for the diagnosis of meningoencephalitis and subarachnoid hemorrhage. The development of computed tomography has changed the position that lumbar puncture has held in the diagnostic sequence of a number of clinical entities. The procedure is contraindicated if there is soft-tissue infection adjacent to the puncture site and if there are findings of increased intracranial pressure due to a mass lesion. Performance in the setting of a coagulopathy may also be hazardous. The most serious potential complication is cerebral herniation. The commonest complication is postlumbar puncture headache, which is due to CSF hypotension resulting from persistent spinal fluid leakage through the meningeal puncture site. Spinal hematoma, diplopia, and intraspinal dermoid tumor formation are less common complications. Meningitis has been found to follow lumbar puncture in children with bacteremia. The lumbar puncture is a useful test for providing information regarding the cellular, chemical, and microbiologic composition of the CSF. Fluid obtained should be evaluated for cell count, Gram's stain, bacterial culture, glucose and protein levels, and other tests as clinically indicated.
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PMID:Lumbar puncture. 383 22

A 76-year-old female was admitted with a headache. She had no febrile course before admission. Computed tomography (CT) demonstrated bilateral frontal hypodense areas without enhanced rim. She was made a diagnosis of a chronic subdural hematoma. Because her general condition was poor and she had no neurological deficit, she was planned to be treated conservatively. On a few days after the admission, she was suffered from agranulocytosis. However, leukopenia disappeared within a few days by the effective treatment and any neurological deficit was not observed in these period. On thirty days after the admission, she rapidly became semicomatous state and showed left side hemiparesis. A subdural empyema was demonstrated by the subsequent operation. Both culture of subdural fluid and urine yielded Escherichia coli. Her neurological deficits cleared after the operation and subsequent antibiotic therapy. We speculated that infection of urinary tract produced a E. coli bacteremia and subsequently infected subdural hematoma occurred by this microorganism. We stressed that when the neurological deterioration was observed during the conservative treatment of chronic subdural hematoma, infected hematoma would be one which should be one differentiated from an enlargement of hematoma. The mechanisms of the rim enhancement observed at CT are also discussed.
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PMID:[A case of infected subdural hematoma (subdural empyema) secondary to septicemia caused by agranulocytosis]. 614 37

Two patients had bacteremia with Center for Disease Control group DF-2 Gram-negative rods. Previously described patients infected with this organism had clinical syndromes including cellulitis, meningitis, and endocarditis, and generally were severely ill. One of our patients had acute oligoarticular arthritis. The other had fever, headache, malaise, and a generalized rash. In neither case was bacterial infection considered likely at onset, and neither patient received antibiotic therapy. Both patients recovered completely. The organism is a fastidious Gram-negative rod that only recently has been characterized. Methods for isolating and identifying the organism are reviewed. The spectrum and frequency of illnesses caused by this organism are probably greater than previously recognized.
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PMID:Infection with CDC group DF-2 gram-negative rod: report of two cases. 624 27

We conducted a randomized, prospective, open comparison to evaluate the efficacy and safety of cefepime and ceftazidime in the treatment of hospitalized patients with suspected gram-negative bacteremia. Twenty-eight patients with signs and symptoms of sepsis were prospectively randomized to receive cefepime (13 patients) or ceftazidime (15 patients). Cultures of blood obtained at entry into the study were positive for 24 (85.7%) of 28 patients. Eight patients had two or more positive pretreatment blood cultures, and the remaining 16 had one positive pretreatment blood culture. The most commonly isolated blood pathogen was Escherichia coli. Eleven of 13 patients treated with cefepime and 12 of 15 patients treated with ceftazidime were clinically cured. Adverse effects attributable to therapy with the study drugs were minimal in both groups of patients and included rash, headache, nausea, and diarrhea. Our results suggest that cefepime is an efficacious and well tolerated as is ceftazidime in the treatment of hospitalized patients with documented gram-negative bacteremia.
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PMID:Randomized comparison of cefepime and ceftazidime for treatment of hospitalized patients with gram-negative bacteremia. 772 71


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