PubMed Health⌕ Search

Biomedical subjects

J Modai

Publications and source records attributed to J Modai.

At least 37 records · Page 2Linked to original sources

Potential role of fluoroquinolones in the treatment of bacterial meningitis.

The search for new antimicrobial agents in the treatment of bacterial meningitis is justified by a rate of mortality that currently remains unacceptably high and by the emergence of bacterial resistance. Because of their excellent in vitro activity against gram-negative organisms and good penetration into the cerebrospinal fluid, the new fluoroquinolones may have a potential role in the treatment of central nervous system (CNS) infections. Although there are few reports on the use of fluoroquinolones in treatment of patients with CNS infections, experience to date indicates that pefloxacin, the most intensively studied agent, and ciprofloxacin provide effective treatment for patients with meningitis caused by susceptible pathogens. Since they cannot be used in patients whose skeletal growth is incomplete, the place of the fluoroquinolones in the treatment of Haemophilus influenzae meningitis is obviously very limited. Neisseria meningitidis is still exquisitely sensitive to penicillin G and ampicillin, and there is thus no reason to replace these agents by fluoroquinolones, except when patients are allergic to beta-lactam agents, or when parental administration is impossible. A potential use of the new fluoroquinolones would be in the treatment of meningitis due to gram-negative bacilli, including Pseudomonas aeruginosa, and Acinetobacter.

4-Quinolones↗

Sulfadiazine-induced crystalluria in AIDS patients with toxoplasma encephalitis.

Toxoplasma encephalitis is the most common opportunistic infection of the central nervous system in patients with AIDS. The treatment of choice is a combination of sulfadiazine and pyrimethamine. We present here four patients with AIDS treated for toxoplasmic encephalitis who developed sulfadiazine-induced crystalluria. This complication was rapidly reversible with rehydration and urine alkalinization. Patients with AIDS treated with high doses of sulfadiazine should be adequately hydrated, and their urinary pH maintained above 7.5 to prevent sulfadiazine-induced crystalluria.

Acquired Immunodeficiency Syndrome↗

Empiric therapy of severe infections in adults.

The third-generation cephalosporins are useful for empiric therapy of most of the severe infections in adults as a result of their broad spectrum of antimicrobial activity (particularly against clinically important gram-negative bacteria), good tissue penetration, and lack of serious adverse effects. This review examines their use in respiratory tract infections, bacterial meningitis, skin-structure infections, and urinary tract infections in adult patients. Penicillin G remains the optimal therapy for severe community-acquired pneumonia, since Streptococcus pneumoniae still accounts for the majority of cases. However, for empiric treatment of nosocomial pneumonia, therapy must ensure coverage both of aerobic gram-negative bacilli and Staphylococcus aureus. The choice of empiric antibiotic therapy in the treatment of urinary tract infections depends on the pattern of resistance in the patient's environment. At present, the treatment of bacterial meningitis in otherwise healthy adults does not constitute a major problem provided that penicillin resistance among pneumococci and meningococci (responsible for at least 80 percent of cases) does not become a clinical problem. However, in meningitis in which gram-negative bacilli are suspected and where specific problems include antibiotic resistance among these organisms and the inadequate penetration of many antibiotics into the cerebrospinal fluid, third-generation cephalosporins are the drugs of choice, and they have markedly improved the clinical outcome. Most skin-structure infections are due to S. aureus and are best treated by an anti-staphylococcal penicillin or an older cephalosporin. Nevertheless, the third-generation cephalosporins have proved to be highly effective agents for infections of skin and soft-tissue infections associated with both gram-positive and gram-negative pathogens in patients at risk from these organisms or in the elderly.

Adult↗

Treatment of serious infections with intravenous ciprofloxacin. French Multicenter Study Group.

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.

Adolescent↗

[Efficacy and tolerability of cefixime in lower respiratory tract infections in adults. French multicentric study].

Cefixime is a new oral cephalosporin with the same activity as that of third generation cephalosporins, particularly against organisms responsible for lower respiratory tract infections. The effectiveness and safety of cefixime were evaluated in the multicentre study reported here. Cure was obtained in 54 of 61 assessable patients suffering from bronchopneumonia (40/44), acute bronchitis (3/5) or acute exacerbations of chronic bronchitis (11/12). The causative agents were eradicated in 35 of 41 assessable cases. No clinical side-effect was observed. Thrombocytosis without clinical manifestations was reported in 14 cases. Administered in doses of 200 mg twice daily, cefixime proved effective and safe in the treatment of lower respiratory tract infections.

Acute Disease↗

[Efficacy and tolerability of cefixime in urinary tract infections in adults. A French multicentric study].

Cefixime is a new oral antibiotic with in vitro activity similar to that of parenteral third generation cephalosporins. It exhibits good in vitro activity against most pathogens causing urinary tract infections. The effectiveness and safety of cefixime were evaluated in a multicentre study involving 68 patients (45 with acute pyelonephritis, 15 with lower urinary tract infections and 8 with infections of undetermined location); 55 of these patients were assessable in terms of effectiveness. Clinical cure was achieved in 50 cases. The causative agent was always eradicated. During the 3 to 8 weeks' follow-up period, relapses occurred in 5 patients with pyelonephritis. Adverse effects were reported by 2 patients. Biological manifestations (thrombocytosis, elevated ASAT and ALAT) were noted in 5 cases. Cefixime is a safe and effective antibiotic for the treatment of urinary tract infections.

Adolescent↗

Prognosis of ruptured intracranial mycotic aneurysms: a review of 12 cases.

Intracranial mycotic aneurysms (IMA) occur in 1-3% of all infective endocarditis. Although spontaneous resolution was evidenced on serial angiograms in many asymptomatic cases, the prognosis, if they rupture, is reported to be worse and partly contingent on the therapeutic approach. Among 12 patients (six acute and six subacute endocarditis) with ruptured IMA, six were treated surgically and four were treated medically. Two patients died during rupture before any treatment could be started. Six patients had a sudden rupture manifested by coma, less clear consciousness seizures, hemiparesis unilateral mydriasis. CT-Scan showed intracerebral, intraventricular and subarachnoid haemorrhage. Ten angiograms showed 11 IMA. For patients with ruptured IMA, the decision for surgical treatment was made in the presence of deepening coma and extensive mass-lesion on CT-scan (one of six died in the postoperative period). Others received medical treatment (four cases: all survived) and were followed-up with serial angiographies. Of the nine patients who survived, five remained free of any disability 1-4 years later. We suggest that the prognosis of ruptured IMA (25% mortality rate) is not as bad as previously reported if surgery following angiography is performed early in the presence of deepening coma and extensive lesion.

Adolescent↗

[Empirical antibiotic therapy and ceftazidime].

Ceftazidime is indicated mainly for the empirical treatment of severe infections treated in hospital and of hospital-acquired infections. It can be used alone in numerous severe infections and it offers a good alternative to aminoglycosides and antibiotic combinations. However, there are frequent clinical situations where this drug must be used in combination with vancomycin to cover Staphylococci and Enterococci, and/or with an imidazole derivative to cover anaerobic species. Similarly, when the pathogens are known to be multiresistant the ceftazidime-aminoglycoside combination has a synergistic bactericidal activity and prevents the emergence of resistant strains. This combination is also recommended in cases where the site of infection is difficult to reach or in immunocompromised patients.

Bacterial Infections↗

The clinical use of macrolides.

Macrolides are active against Streptococcus pneumoniae, Legionella spp. and Mycoplasma pneumoniae, the main causes of community-acquired pneumonia They may therefore be used for the empirical treatment of community-acquired pneumonia, although emergent resistance in Str. pneumoniae limits their use in some parts of the world. In patients with bronchitis the use of macrolides reduces the severity and duration of symptoms. Macrolides have also been used successfully in the treatment of otitis media and sinusitis; combination with sulphonamides may be desirable. They may be effective in eradicating the carrier state of Str. pyogenes, Bordetella pertussis, Corynebacterium diptheriae, and Neisseria meningitidis. Macrolides provide alternative therapy for the prophylaxis of recurrent acute rheumatic fever and of infective endocarditis after dental treatment. The cure rate with macrolides of streptococcal skin infections and of minor staphylococcal infections is equal to that achieved with penicillins. In diarrhoea due to Campylobacter jejuni, the administration of macrolides shortens the duration of the faecal excretion of organisms and may give clinical improvement in severe disease. Macrolides are the drugs of choice for infections due to Chlamydia trachomatis in pregnancy and for Haemophilus ducreyi infections. They are effective alternative therapy to benzylpenicillin for the treatment of N. gonorrhoeae and Treponema pallidum infections.

Anti-Bacterial Agents↗

Hypogonadism in AIDS.

Explore the source record for details and available documents.

Acquired Immunodeficiency Syndrome↗

Acquired immunodeficiency syndrome after travelling in Africa: an epidemiological study in seventeen Caucasian patients.

Seventeen Caucasian patients with acquired immunodeficiency syndrome (AIDS) contracted after long stays in Africa are reported. Central Africa was concerned in all cases. Men are particularly exposed to AIDS whatever their occupation. This study suggests that the risk of contracting AIDS in Africa is high; the transmission of the virus was related to sexual contact, particularly with prostitutes, in Africa in most of the cases. It suggests also that Caucasians who travel in Africa spread the virus throughout the world by means of their heterosexual relations.

Acquired Immunodeficiency Syndrome↗

Bactericidal activity against Haemophilus influenzae of cerebrospinal fluid of patients given amoxicillin-clavulanic acid.

Patients with purulent meningitis received amoxicillin-clavulanic acid (200/20 mg/kg [body weight] per day). Clavulanic acid levels in cerebrospinal fluid were less than or equal to 0.05 micrograms/ml in 5 of 18 samples and ranged from 0.1 to 0.8 micrograms/ml in the others. Of 12 cerebrospinal fluid samples tested, 10 lacked bactericidal activity in vitro against a beta-lactamase-producing strain of Haemophilus influenzae.

Adolescent↗

[Role of invasive candidiasis in hospital pathology].

The frequency, mode of occurrence, diagnostic criteria and main features of systemic and visceral candidiasis have been evaluated in a retrospective study of all cases managed in St Louis Hospital, Paris, during the [June 1, 1985-May 31, 1986] period. During this one year period 23 patients suffered from systemic or visceral candidiasis and Candida spp. accounted for 9.6% of all positive blood cultures, fourth in number after Enterobacteriaceae, Staphylococcus and Pseudomonas. Abnormal underlying condition was present in all patients, mainly haematologic malignancies, serious abdominal surgery and AIDS. In patients with haematologic malignancies C. tropicalis was the main species involved in contrast with surgical patients in whom the dominant responsible species was C. albicans. No Candida oesophagus was common. Therapeutic regimens included amphotericin B in all patients with systemic disease. We conclude that in an institution mainly oriented toward management of cancer and surgical patients, systemic and visceral candidiasis are common and represent a serious problem.

Adolescent↗