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Biomedical subjects

C D Bluestone

Publications and source records attributed to C D Bluestone.

At least 19 recordsLinked to original sources
PubMed1992

Infections of the ears, nose, and throat in children with primary immunodeficiencies.

Children who suffer from primary immunodeficiencies have long been thought to be subject to infections of the ears, nose, and throat due to unusual or resistant organisms. A retrospective chart review was undertaken at Children's Hospital of Pittsburgh from 1979 to 1989 to determine the types and frequency of infections of the ears, nose, and throat, and the bacteriologic findings from cultures of the sinuses, ears, and head and neck abscesses, when obtained. Seventy-five patients were identified with primary immunodeficiencies, and 80% suffered from infections of the ears, nose, and throat. Cultures obtained from 33% of the group showed the majority of the organisms commonly seen in ear and sinus infections. We conclude from this study that children with primary immunodeficiencies who require hospitalization frequently have an infection of the ears, nose, and throat, and that the infection is usually caused by community acquired bacteria. Empiric treatment may therefore be directed to common organisms causing these infections.

Aspergillosis↗
PubMed1992

Predictors of residual-recurrent cholesteatoma in children.

The aggressive nature of childhood cholesteatoma has generated much controversy regarding the optimal management of this challenging disorder. To identify potential predictors of residual-recurrent disease, we studied 232 children (244 ears) treated with 427 surgical procedures between 1973 and 1990. Cause of the primary cholesteatoma was congenital in 43 patients (18%), acquired in 83 (36%), and unknown in 106 (46%). Of 90 patients with residual-recurrent disease, 21 (23%) instances were detected during a second-look surgical exploration. The 3- and 5-year residual-recurrence rates were 48% and 57%, respectively. Development of residual-recurrent disease was associated with ossicular erosion (Cox regression) but not with status of the canal wall (up vs down) during tympanomastoidectomy. This study suggests a need for intense and prolonged postoperative follow-up of children with cholesteatoma, especially those with ossicular erosion.

Adolescent↗
PubMed1992

Current therapy for otitis media and criteria for evaluation of new antimicrobial agents.

Otitis media is the most commonly diagnosed disease in infants and children in the United States. For routine empirical treatment of uncomplicated acute otitis media, amoxicillin is the drug of choice. Persistence of signs and symptoms of infection during antimicrobial therapy calls for a change to an antibiotic effective against beta-lactamase-producing bacteria (e.g., trimethoprim-sulfamethoxazole, amoxicillin/clavulanate, or one of the newer oral cephalosporins) or performance of tympanocentesis/myringotomy or both. The most common nonsurgical and surgical methods currently employed for prevention of frequent recurrences are antimicrobial prophylaxis, myringotomy with insertion of a tympanostomy tube, and adenoidectomy. For patients who have otitis media with effusion for which treatment is indicated, antimicrobial agents have been shown to be effective; amoxicillin is preferred as initial therapy. Guidelines for evaluating new antimicrobial agents in the treatment of otitis media are presented in this report.

Acute Disease↗
PubMed1992

Towards the validation of aural acoustic immittance measures for diagnosis of middle ear effusion in children.

Acoustic admittance testing was done on the ears of two groups of children. The first group was comprised of children undergoing myringotomy and tube surgery for treatment of chronic or recurrent otitis media, and the second group was comprised of hospital outpatients who were unscreened with respect to a history of middle ear disease and who were more representative of children in the general population. The admittance measures were then analyzed with respect to middle ear status (effusion versus no effusion) as determined by the surgeon (surgery group) and by validated otoscopy (outpatient group). Based on the data from the surgery group, the best admittance criteria for the identification of middle ear effusion were determined and then tested with respect to the data from subjects in the outpatient group. Sensitivity and specificity of several different criteria were similar. The role of prevalence of disease and the value of admittance measures such as gradient and acoustic reflex are discussed in the context of diagnostic testing in clinical or research protocols as well as in the context of immittance screening programs.

Acoustic Impedance Tests↗
PubMed1992

Efficacy of myringotomy with and without tympanostomy tubes for chronic otitis media with effusion.

In a previous trial involving 109 children with chronic otitis media with effusion of at least a 2 months' duration that had been unresponsive to medical treatment, we compared the efficacy of myringotomy with tube insertion, myringotomy alone and no surgical intervention with regard to time with middle ear effusion, hearing status and other indices over a 3-year period. Because interpretation of the results was rendered difficult by certain complexities of study design, the present trial with a revised protocol was carried out in an additional group of 111 children. As in the previous trial, myringotomy with tube insertion resulted in less time with effusion and better hearing than did either myringotomy alone or no surgery. However, acute and chronic otorrhea and tympanic membrane perforation developed not uncommonly after tube insertion. Myringotomy alone offered no advantage over no surgery regarding the percent of time with effusion or the number of episodes of acute otitis media. Currently for children with long-standing middle ear effusion, we recommend either watchful waiting with periodic hearing assessment or myringotomy with tube insertion, individualizing the recommendation for each child.

Child↗
PubMed1992

Efficacy of antimicrobial prophylaxis and of tympanostomy tube insertion for prevention of recurrent acute otitis media: results of a randomized clinical trial.

To determine the efficacy of amoxicillin prophylaxis and of tympanostomy tube insertion in preventing recurrences of acute otitis media, we randomized 264 children 7 to 35 months of age who had a history of recurrent otitis media but were free of middle ear effusion to receive either amoxicillin prophylaxis, bilateral tympanostomy tube insertion or placebo. The average rate of new episodes per child year of either acute otitis media or otorrhea was 0.60 in the amoxicillin group, 1.08 in the placebo group and 1.02 in the tympanostomy tube group (amoxicillin vs. placebo, P less than 0.001; tubes vs. placebo, P = 0.25). The average proportion of time with otitis media of any type was 10.0% in the amoxicillin group, 15.0% in the placebo group and 6.6% in the tympanostomy tube group (amoxicillin vs. placebo, P = 0.03; tubes vs. placebo, P less than 0.001). At the 2-year end point, the rate of attrition was 42.2% in the amoxicillin group, 45.5% in the placebo group and 26.7% in the tympanostomy tube group. Adverse drug reactions occurred in 7.0% of the amoxicillin group and persistent tympanic membrane perforations developed in 3.9% of the tympanostomy tube group. The observed degree of efficacy of amoxicillin prophylaxis and of tympanostomy tube insertion must be viewed in light of the fact that study subjects proved not to have been at as high risk for acute otitis media as had been anticipated and in view of the differential attrition rates.(ABSTRACT TRUNCATED AT 250 WORDS)

Acute Disease↗
PubMed1992

Ten-year review of otitis media pathogens.

Data collected from 1980 to 1989 by investigators at the Pittsburgh Otitis Media Research Center were examined to detect changes over time in the prevalence of bacteria isolated from middle ear effusions in patients with otitis media. The organisms isolated most commonly from the 7396 effusions cultured at the center were Streptococcus pneumoniae and Haemophilus influenzae. S. pneumoniae predominated in the subgroup of patients with acute otitis media, whereas H. influenzae was isolated most frequently from patients with otitis media with effusion. The most notable changes to occur during the 10-year period were a statistically significant increase in the prevalence of S. pneumoniae in patients with acute otitis media and a progressive rise in the percentage of beta-lactamase-producing strains of H. influenzae and Moraxella (Branhamella) catarrhalis. The latter finding suggests the need for therapeutic alternatives to amoxicillin, which is not active against beta-lactamase-producing organisms, when these organisms are suspected or cultured from the middle ear.

Bacterial Infections↗
PubMed1992

Current indications for tonsillectomy and adenoidectomy.

Tonsillectomy and adenoidectomy are currently the most common pediatric surgical procedures performed in the United States. Tonsillectomy may be effective in recurrent acute throat infection (acute tonsillitis), chronic tonsillitis, tonsillar hypertrophy, and peritonsillar abscess. Antimicrobial therapy may also be beneficial. Clinical trials evaluating children with obstructive adenoids are currently being evaluated; anecdotal evidence points to improvement in development and quality of life after surgery. The efficacy of adenoidectomy in paranasal sinusitis has not been evaluated in clinical trials; antimicrobial therapy or the possibility of upper respiratory tract allergy should be considered in such cases. For acute otitis media, recommendations range from no treatment in cases that will abate with time, to anti-microbial prophylaxis, to myringotomy with tympanostomy tube insertion, adenoidectomy with or without tonsillectomy, or a combination of adenoidectomy with myringotomy and/or tympanostomy tubes. The decision for or against otic and/or pharyngeal surgery should be individualized on the basis of severity, duration, and frequency of illness; previous treatment; and risk.

Adenoidectomy↗
PubMed1992

Otitis media.

Explore the source record for details and available documents.

Humans↗
PubMed1991

Systemic steroids for otitis media with effusion in children.

The role of oral steroids in the treatment of otitis media with effusion in children is the subject of ongoing debate. To critically evaluate the existing evidence, we performed a formal meta-analysis of six randomized clinical trials (n = 264 children) selected from 14 articles and abstracts. Children receiving steroids for 7 to 14 days were 3.6 times more likely than placebo-treated control subjects to have both ears free of effusion at the end of therapy (95% confidence interval, 2.2 to 4.1). This finding was essentially unchanged when the studies were weighted by a quality score, or stratified by use of concurrent antibiotic. The presence of significant heterogeneity among these studies suggests that additional trials will be needed to identify the specific subset(s) of children most likely to benefit from steroid therapy.

Adolescent↗
PubMed1991

Concentration of cefuroxime in serum and middle ear effusion after single dose treatment with cefuroxime axetil.

Antimicrobial agents play an important role in the treatment of patients with acute otitis media and otitis media with effusion (OME). The study was undertaken to determine the concentrations of cefuroxime in the blood and middle ear effusions (MEE) of children between 6 and 12 years of age with acute otitis media and chronic OME after a single oral dose administration of cefuroxime axetil, the ester prodrug of cefuroxime. Cefuroxime axetil (250 mg) was administered 2 to 6 hours before either myringotomy for acute otitis media or myringotomy and tube insertion for chronic OME. Blood samples and middle ear aspirates were obtained from 31 children and the samples were analyzed by high performance liquid chromatography. Cefuroxime was recovered in measurable concentrations in all serum samples and in 15 (79%) of the 19 MEE specimens analyzed. No correlation was seen between cefuroxime MEE concentrations and effusion type, bacteriology or serum concentrations. This study shows that cefuroxime does penetrate into MEE when OME is present and that therapeutic concentrations can be achieved in some patients.

Acute Disease↗
PubMed1991

Comparative efficacy of erythromycin-sulfisoxazole, cefaclor, amoxicillin or placebo for otitis media with effusion in children.

We randomly assigned children with otitis media with effusion to receive either erythromycin-sulfisoxazole, cefaclor, amoxicillin or placebo for a 2-week period, primarily to determine whether either erythromycin-sulfisoxazole or cefaclor would have greater short term efficacy than that found previously for amoxicillin, and secondarily to supplement earlier data on outcomes in placebo-treated subjects. Interim analyses showed no statistically significant (P less than 0.05) differences between the three antimicrobial treatment groups in the primary outcome measures, i.e. the prevalence of middle-ear effusion 2 and 4 weeks after entry, and indicated that postulated differences favoring the erythromycin-sulfisoxazole and cefaclor groups over the amoxicillin group were unlikely to be found even if the originally calculated sample size were attained. Subject accrual was therefore terminated. Final analysis showed no significant between-group differences in other outcome measures as well. In antimicrobial vs. placebo comparisons neither erythromycin-sulfisoxazole nor cefaclor gave more favorable outcomes than placebo, whereas more children were effusion-free in the amoxicillin group than in the placebo group at 2 weeks (31.6% vs. 14.1%, P = 0.007), but not at 4 weeks. We conclude that when antimicrobial treatment for otitis media with effusion is deemed advisable, neither erythromycin-sulfisoxazole nor cefaclor should replace amoxicillin as first line treatment.

Amoxicillin↗
PubMed1991

Amoxicillin or myringotomy or both for acute otitis media: results of a randomized clinical trial.

A total of 536 infants and children with acute otitis media were randomly assigned to one of six consistent year-long regimens involving the treatment of nonsevere episodes with either amoxicillin or placebo, and severe episodes with either amoxicillin, amoxicillin and myringotomy, or, in children aged 2 years or older, placebo and myringotomy. Nonsevere episodes had more favorable outcomes in subjects assigned to treatment with amoxicillin than with placebo, as measured by the proportions that resulted in initial treatment failure (3.9% vs 7.7%, P = .009) and the proportions in which middle-ear effusion was present at 2 and 6 weeks after onset (46.9% vs 62.5%, P less than .001; and 45.9% vs 51.5%, P = .09, respectively). In subjects whose entry episode was non-severe, those assigned to amoxicillin treatment had less average time with effusion during the succeeding year than those assigned to placebo treatment (36.0% vs 44.4%, P = .004), but recurrence rates of acute otitis media in the two groups were similar. In the 2-year-and-older age group, severe episodes resulted in more initial treatment failures in subjects assigned to receive myringotomy alone than in subjects assigned to receive amoxicillin with, or without, myringotomy (23.5% vs 3.1% vs 4.1%, P = .006). In the study population as a whole, severe episodes in subjects assigned to receive amoxicillin alone, and amoxicillin with myringotomy, had comparable outcomes. It is concluded that children with acute otitis media should routinely be treated with amoxicillin (or an equivalent antimicrobial drug). The data provide no support for the routine use of myringotomy either alone or adjunctively.

Acute Disease↗
PubMed1990

Efficacy of adenoidectomy for recurrent otitis media in children previously treated with tympanostomy-tube placement. Results of parallel randomized and nonrandomized trials.

We studied the efficacy of adenoidectomy in 213 children who had received tympanostomy-tube placement because of persistent and/or recurrent otitis media and had again developed otitis media after tubal extrusion. Ninety-nine of the children were assigned randomly to either an adenoidectomy group or a control group; in a separate trial, 114 children whose parents withheld consent for randomization were assigned according to parental preference. In both trials, control group outcomes appeared to have been biased favorably by the withdrawal of certain severely affected subjects from control status to receive adenoidectomy. Nonetheless, in both trials, adenoidectomy group outcomes were more favorable than control group outcomes during the first 2 follow-up years. Statistically significant differences were found mainly in the randomized trial, where during the first and second years, respectively, adenoidectomy subjects had 47% and 37% less time with otitis media than control subjects and 28% and 35% fewer suppurative (acute) episodes than control subjects. We conclude that adenoidectomy is warranted on an individualized basis for children who develop recurrent otitis media after extrusion of tympanostomy tubes.

Adenoidectomy↗
PubMed1990

Parotid duct communicating with a labial pit and ectopic salivary cyst.

Labial pits are usually described as blind epidermal invaginations of lip mucosa with occasional drainage of minor salivary gland secretions. A case of an aberrant parotid duct in communication with both a unilateral, commissural labial pit and an interposed salivary cyst is presented. A 7-year-old boy who had experienced lifelong clear drainage from a congenital pit at his right oral commissure developed fever, pain, and a submucosal mass of the right cheek over a 6-week period. A preoperative sialogram through the pit demonstrated a communication between the oral commissure fistula, an intervening salivary cyst, and a proximal tract from the cyst to the parotid gland. An en bloc resection of the pit, fistula tract, and cyst was performed through a transoral approach. The dissection was medial to the buccinator muscle. There has been no recurrence of the cyst after 1 year follow-up. A description of labial pits and parotid duct anomalies is presented; however, to our knowledge, this combination of anomalies has not been previously described.

Child↗