Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0348321 (Haemophilus)
 15,372 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A double-blind, randomized trial of four antimicrobial regimens was conducted in 383 infants and children with acute otitis media. The drugs used were penicillin V, amoxicillin trihydrate, erythromycin estolate, and erythromycin estolate with trisulfapyrimidines. Aspiration of middle ear fluid for culture was done before treatment and repeated during treatment if fluid persisted. Etiologic bacteria were most commonly pneumococci (31%) or Haemophilus sp (22%), and an additional 5% of patients had both organisms. Amoxicillin was the most effective in promoting initial response in pneumococcal infection. For Haemophilus infections, the cure rates with amoxicillin and the erythromycin-trisulfapyrimidines mixture were significantly better than with the other two regimens, and serous otitis did not occur during the follow-up period; however, new episodes of otitis were comparable in the four groups. Amoxicillin and the erythromycin estolate-trisulfapyrimidines combination appear to be somewhat more effective than penicillin V or erythromycin estolate.
 ...
PMID:Otitis media of infancy and early childhood. A double-blind study of four treatment regimens. 0 80

Clearing of the middle ear fluid in patients with acute otitis media due to Streptococcus pneumoniae or Haemophilus influenzae was significantly associated with the presence and concentration of specific antibody in the middle ear fluid at the time of diagnosis.
 ...
PMID:Immune response to acute otitis media: association between middle ear fluid antibody and the clearing of clinical infection. 0 24

It is generally believed that Haemophilus influenzae is not commonly a causative agent of otitis media in children older than 5 years of age. We recently studied cases of 58 children, aged from 5 to 9 years, who had acute otitis media. Haemophilus species were the causative agents in 36% of cases. This high incidence of Haemophilus isolation from the middle ear exudate of these children has important therapeutic implications; antibiotics effective against H influenzae should be employed when dealing with otitis media in this older age group.
 ...
PMID:Acute purulent otitis media in children older than 5 years. Incidence of Haemophilus as a causative organism. 1 16

Simultaneous cultures of the nasopharynx and middle ear exudate (obtained by tympanocentesis) were obtained from 225 children (mean age, 34 months; median age, 41 months) with suppurative otitis media. A 72% prediction rate for middle ear pathogens was obtained by examining the nasopharyngeal cultures after the strict observance of two essential prerequisites: (1) the nasopharyngeal culture was immediately plated on appropriate solid agar and (2) a semiquantitative method for bacterial enumeration was employed in the reading of the nasopharyngeal culture plates. The technique was most valuable where 2+ (greater than 25% up to 50% of total number of colonies was a single pathogen) or greater of a single pathogen was recovered from the nasopharynx. In only one instance, the semiquantitative nasopharyngeal culture incorrectly predicted the middle ear pathogen if one was recovered. Quantitative nasopharyngeal cultures were particularly useful in predicting the presence of ampicillin-resistant Haemophilus influenzae and group A streptococci as causative agents in otitis media.
 ...
PMID:The nasopharyngeal culture in acute otitis media. A reappraisal of its usefulness. 3 39

Tympanocentesis with aerobic and anaerobic cultivation of middle ear fluid was performed through one or both tympanic membranes of 186 children with acute otitis media. Aerobic bacteria alone, predominantly pneumococcus and Hemophilus influenzae, were isolated from 118 (63.4%) patients: and anaerobic organisms alone, most commonly Peptococcus, from 24 (12.9%). Twenty-six (14%) yielded mixtures of aerobes and anaerobes, and several had multiple aerobic agents. No bacterial growth was noted in 18 (9.7%) patients. The isolation of anaerobic bacteria alone, supported in some patients by Gram-stain observations of middle ear fluid, suggests that these bacteria, especially Peptococcus, may occasionally play a direct role in acute otitis media.
 ...
PMID:Otitis media in children: a prospective study of aerobic and anaerobic bacteriology. 3 23

In order to obtain Haemophilus influenzae, other than Type b, with highly probable human pathogeniticy strains were collected that had been isolated in abundant numbers from middle ear or maxillary sinus secretions of 157 patients with otitis media or sinusitis. The distribution of serotypes was as follows: nontypable 33.8%, Type b 26.1% Type a 19.1%, Type c 7.6%, Type e 5.7%, Type f 5.1%, and Type d 2.5%. The type distribution did not depend on the source of the strains. All strains were susceptible to ampicillin and amoxycillin in vitro; the broth dilution minimum inhibitory concentrations (MIC) of both antibiotics varied only fourfold; typical MIC values were 0.125 microgram/ml and 0.25 microngram/ml, respectively. Susceptibility did not vary with the source or type of the strains nor with the presence or absence of concomitant penicillin therapy.
 ...
PMID:Haemophilus influenzae in otitis media and sinusitis: serotypes and susceptibilty to ampicillin and amoxycillin in vitro. 30 34

During a 14-year period there were 65 cases of pneumonia caused by Haemophilus influenzae b; 83% were children less than 2 years of age and 80% of illness occurred in winter and spring. The roentgenographic picture was consolidative pneumonia in 75% and pleural effusions were present in 75% of all cases. Ten patients had associated meningitis and three had purulent pericarditis. Otitis media was diagnosed in 43% and H influenzae b was isolated from eight middle ear aspirates. Three patients (5%) died. Recommendations for diagnosis and treatment are made.
 ...
PMID:Report of 65 cases of Haemophilus influenzae b pneumonia. 31 22

Pus from 46 patients with abscesses of the central nervous system (CNS) was examined for bacteria; bacteria were found in all patients. Streptococci were isolated from 36 patients and most isolates were Streptococcus milleri, Lancefield Group F, Ottens and Winkler type O III. Staphylococci were isolated from nine patients, organisms of the bacteroides group from 11, Proteus spp from seven, Klebsiella aerogenes from one, and Haemophilus aphrophilus from one. Pure cultures predominated over mixed cultures. Streptococci were isolated from abscesses of all types, and at all sites, but members of the Enterobacteriaceae and of the bacteroides group were isolated, in mixed cultures, principally from abscesses of the temporal lobe secondary to infection of the middle ear. Staphylococci predominated in abscesses that followed accidental or surgical trauma. Compared with fully sensitive control organisms, microbes infecting half the patients were resistant to penicillin. The prognosis of abscess of the CNS is grave, and the microbiological findings have important consequences for treatment. Prompt inoculation of specimens to culture plates and prompt incubation are mandatory if bacteria are to be cultured. Inhibitors of antimicrobial agents should be added to culture media if antibiotics have been administered. Provided that the site of the abscess and the antecedent history are ascertainable, the neurosurgeon should be able to start appropriate treatment while awaiting the results of culture.
 ...
PMID:Bacteriology of abscesses of the central nervous system: a multicentre prospective study. 33 41

A double-blind, randomized clinical trial comparing cefaclor with amoxycillin in the treatment of acute otitis media with effusion (OME) in infants and children is being conducted at Children's Hospital of Pittsburgh. Although the randomization code has not yet been broken, the results of treating the first 55 children are reported, since they appear to be of interest. Of the 62 ears with acute OME on which an initial tympanocentesis was performed, 41 positive cultures were isolated from the middle ear aspirates. Of the 10 ears from which Haemophilus influenzae was isolated, one had a type b strain, and of the remaining unencapsulated strains, one was resistant to both penicillin G and ampicillin. In the one ear from which Staphylococcus aureus was isolated, the organism was found to be resistant to ampicillin. However, all of the organisms were sensitive in vitro to cefaclor. In 88% of all subjects observed for the first 2 weeks, the initial symptomatic response was excellent. Six children had persistent signs and symptoms of acute OME and received a second tympanocentesis; however, none of the effusions from the repeat aspiration revealed an organism. An effusion was still present in 97% of the ears after 3 days, in 69% after 2 weeks, and in 48% 6 weeks after initiation of the study. Tympanocentesis did not appear to affect either the initial clinical response or the persistence of effusion. There were no adverse reactions to either drug in this study. Because an apparent increase in the incidence of ampicillin-resistant strains of H. influenzae is being reported, and because of the presence of ampicillin-resistant S. aureus in some ears with acute OME, a new antimicrobial effective against all the common pathogens causing acute middle ear disease would be desirable. In this respect, the preliminary findings of treatment with cefaclor from this study appear promising.
 ...
PMID:Cefaclor compared with amoxycillin acute otitis media with effusion: a preliminary report. 39 80

Strains of Haemophilus influenzae, which did not belong to any of the known capsular serotypes and which were resistant in vitro to ampicillin, have been isolated from middle ear exudates of two children with otitis media. These children failed to improve with ampicillin therapy, and the resistant organisms persisted at the site of infection. Patients infected with such ampicillin-resistant organisms require therapy with antimicrobial agents which are not susceptible to degradation by penicillinase.
 ...
PMID:Otitis media caused by non-typable, ampicillin-resistant strains of Haemophilus influenzae. 108 31


1 2 3 4 5 6 7 8 9 10 Next >>