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1.
We evaluated the efficacy of ciprofloxacin eardrops compared to tobramycin and to a placebo in the treatment of chronic suppurative otitis media. 60 ears were randomly assigned to treatment for 3 weeks with ciprofloxacin, tobramycin or placebo eardrops. The organism most commonly isolated from the ear discharge was Pseudomonas aeruginosa. The clinical responses were 78.9% and 72.2%, respectively, in the ciprofloxacin and tobramycin groups, while it was only 41.2% in the placebo group. Treatment with ciprofloxacin eardrops seemed to be at least as efficient as treatment with tobramycin. Considering the lack of ototoxicity of ciprofloxacin, this treatment may be best for chronic otitis media.  相似文献   

2.
The clinical and bacteriologic efficacy of topically applied ciprofloxacin was studied in 60 patients with chronic suppurative otitis media. Two hundred fifty and 125 microg/ml concentrations of ciprofloxacin solutions were given to two groups of patients. The duration of therapy was determined according to the clinical cure at follow-up. More than 21 days of therapy was not needed in any patient. The clinical cure rate with 250 microg/ml ciprofloxacin was 78.1% at 14 days and with 125 microg/ml it was 83.3%. However, a 100% clinical cure rate and complete bacteriologic eradication was obtained in 21 days in both groups. In each group only one patient had otomycosis by the fourteenth day of therapy, although ear discharge had ceased. It was concluded that 125 microg/ml ciprofloxacin could be applied as successfully as 250 microg/ml, and the duration of therapy had to be at least 14 days. This new dosage regimen can be adopted as an optimal dosage for ototopical application of ciprofloxacin in chronic suppurative otitis media. It will also obviously decrease the expense of therapy.  相似文献   

3.
We conducted a test of the efficacy of ciprofloxacin eardrops in 80 patients (95 ears) with otorrhea due to chronic suppurative otitis media in two treatment settings. One group (n = 40; 47 ears) received daily ciprofloxacin therapy plus aspiration in the clinic. The other group (n = 40; 48 ears) self-administered ciprofloxacin at home. Overall, otorrhea resolved in 88% of all ears within 12 days of the initiation of treatment. The clinic-treated patients tended to respond more rapidly than did the self-treated patients, but there was no statistically significant difference in success rates between the two groups. Side effects were negligible. We conclude that empiric topical ciprofloxacin therapy is an effective, safe and relatively inexpensive treatment for otorrhea in patients with chronic otitis media.  相似文献   

4.
Microbiology of 102 ears with chronic suppurative otitis media was studied for aerobes, anaerobes, and fungi. Forty-four percent were pure cultures, 33.3% were mixed, and 18.6% had no growth. Seventy-four percent were aerobes, 25% fungi, and only 0.9% anaerobes. Pseudomonas aeruginosa (22.5%) was the most common isolate, followed by Staphylococcus aureus and the Aspergillus species. The possible reasons for low yield of anaerobes and the pathogenic roles of anaerobes and fungi in chronic suppurative otitis media are discussed. It is advocated that in investigating pathogenic organisms in chronic suppurative otitis media, requests should include anaerobes and fungi.  相似文献   

5.
6.
Secretory otitis media is defined as a fluid in the middle ear without signs or symptoms of infection. As the aetiology and pathogenesis of the disease are unknown, and as it affects children aged from 3 to 12 years, treatment procedures proposed for management of secretory otitis media, are not uniform. Some authors [1, 4, 6] consider that functional or mechanical obstructions of the Eustachian tube could provoke secretory otitis. The purpose of the treatment is to remove exudate from the middle ear and appropriately ventilate it for a longer period. That could instantly normalize the hearing and exclude the appearance of late complications of secretory otitis. Although the disease could heal spontaneously, the treatment should be performed immediately for preventing sequelae of secretory otitis. The aim of the study was to evaluate possible aetiologic factors of secretory otitis in our population, and to evaluate results of lympanometry in children with exudate in the middle ear. There were 65 children, aged from 3 to 12 years (Table 1), who complained of deafness and were examined at the ORL Department in Banja Luka. The clinical examination revealed the integrity and color of tympanic membrane, scars, adhesions and atrophic areas. Audiometry and tympanometry had been performed in addition. Patients who proved to have exudate in the middle ear received nasal decongestants and mucolitics during three months, and were evaluated every three weeks by audiometry and tympanometry. Pathologic findings in the nose and epipharynx were the most common findings: enlarged adenoids in 38 (58%) patients, hypetrophic rhinitis in 15 (23%) and allergic rhinitis in 5 (8%) patients. Frequent relapses of middle ear infection in the first three years of life were found in 26 (40%) patients and early first attacks in the first year of life in 15 (23%) patients (Table 2). Premature onset (15%) and allergy (21%) had also been frequently found. Results of tympanometry and audiometry are shown in Table 3. Exudate in the middle ear and type B tympanogram were found in 86 ears, while in other patients dysfunction of the Eustachian tube and type C1 and C2 tympanograms were found. After 6 weeks the exudate disappeared in 16 ears and tympanogram converted in type A and type C2, while the initially found C1 tympanogram was transformed in type A in 5 of 13 ears. After 12 weeks the tympanogram type B was found in 46 ears, while in 40 ears (47%) the tympanogram was changed in type A and type C2. After 6 and 12 weeks of therapy tympanometric types were statistically examined by chi 2 test. We have found a significant difference in tympanometric types and prevalence of type A and C1 tympanograms. Paracentesis and insertion of ventilating tubes were done in 46 ears with the remaining exudate. We have found mucous exudate in 35 (76%) ears associated with retraction and scars of tympanic membrane (Table 4), what indicated that the longer duration of mucous exudate caused degenerative changes in the middle ear. Serous exudate, found in 9 ears (24%), did not affect the color and integrity of the tympanic membrane. Sensitivity of tympanometry in detection of exudate in the middle ear was 96%. Secretory otitis media is a frequent disease in childhood, that could cause functional and morphological sequelae in the middle ear. As for now, there is no unique concept of diagnosis and treatment of the disease, and it is still a current problem. We suggest a three-month evaluation of tympanometric and audiometric patterns, repeated every three weeks, in children suspected of having exudate in the middle ear. There is a large trend of spontaneous disappearance of exudate in the middle ear and changing of tympanogram type. Such children should be evaluated over the period of one year, and if there is no relapse additional treatment should not be carried out. If exudate in the middle ear persists for three months and type of the tympanogram is unchanged, myringotomy and insert  相似文献   

7.
An organism must maintain a fairly constant balance of pH to survive. Most bacteria grow the best in a narrow range of pH from 6.5 to 7.5. Ninety-six patients with chronic suppurative otitis media were selected. Two weeks before the treatment they were instructed to stop taking any antibiotics; then a sterile swab culture was taken from auditory canal secretions and at the same time the pH of the secretions were measured. Otomicroscopic examination of the ear with cleaning of purulent debris was done. All patients received ear irrigation with 2% acetic acid solution three times per week for the maximum of 3 weeks without antibiotic therapy. Any patients with cholesteatoma, polyp, granulation and otomycosis were excluded. Patients were followed for up to 3 years. Fifty-five patients (57%) had resolution of their original otorrhen, whereas 19 patients (20%) developed healed ear drum perforation. The remaining 14 patients (15%) showed recurrence and 8 of them (8%) had no response to the treatment.  相似文献   

8.
A retrospective study was made of 200 chronic otitis media patients. Simple chronic otitis media was observed in 76 per cent of cases; the rest were associated with cholesteatoma. In about one third of the patients, the contralateral ear showed some inflammatory middle ear disease as well. The average time lapse between initial symptoms and hospitalization was about 10 years. The events leading to the tympanic perforation were difficult to ascertain, but included probably acute otitis media, possibly external otitis, trauma, and a rather large group (35-40 per cent) of insidious 'essential perforations'. The aetiology of the 'essential perforations' is so far not known, but might be non-inflammatory in nature but related to insufficient middle ear aeration and hypo-pneumatization as well as to what is termed atelectatic ears. The bacteria isolated from chronic otitis media ears (usually gram negative bacteria and staphylococcus aureus) are usually not the types of micro-organisms found in association with any primary or acute otitis media. It is proposed that the bacterial infection encountered in what is termed 'chronic otitis media' is often a secondary infection of a primary perforated tympanic membrane, the perforation originating or persisting in underventilated ears, and having arisen from various causes--some of them as yet unknown.  相似文献   

9.
OBJECTIVE: To determine the bacteriologic efficacy of ceftriaxone in nonresponsive acute otitis media in children. METHODS: In a prospective study 92 patients ages 3 to 36 months (median, 11 months) with culture-proved nonresponsive acute otitis media were studied from January, 1995, through August, 1997. The patients were treated with intramuscular ceftriaxone (50 mg/kg/l/day) for 3 days. Middle ear fluid was aspirated for culture by tympanocentesis on day of enrollment (Day 1); a second tap was performed on Days 4 to 10. Additional middle ear fluid cultures were obtained if clinical relapse occurred. Bacteriologic failure was defined by positive culture on Days 4 to 10. Patients were followed until Day 17+/-2. Susceptibility was measured by E test. RESULTS: The main drugs administered before enrollment were amoxicillin (38%), amoxicillinclavulanate (25%) and cefaclor (20%). Organisms recovered (n=105) were: Haemophilus influenzae, 54; Streptococcus pneumoniae, 47; Moraxella catarrhalis, 2; and Streptococcus pyogenes, 2. Thirty-four (72%) of the 47 S. pneumoniae isolates were intermediately resistant to penicillin (MIC 0.1 to 1.0 microg/ml), but all were susceptible to ceftriaxone (MIC < 0.5 microg/ml). Bacteriologic eradication was achieved in 100 of 105 (95%) cases: 54 of 54 (10O%) H. influenzae, 43 of 47 (92%) S. pneumoniae, 1 of 2 (50%) M. catarrhalis and 2 of 2 (100%) S. pyogenes. Bacteriologic success (with no relapse) occurred in 13 of 13 (100%) penicillin-susceptible S. pneumoniae vs. 28 of 34 (82%) S. pneumoniae intermediately resistant to penicillin (4 cases of bacteriologic failure and 2 cases of relapse). CONCLUSION: A 3-day intramuscular ceftriaxone regimen is efficacious for the treatment of nonresponsive acute otitis media. The optimal duration of treatment in cases of nonresponsive acute otitis media and whether ceftriaxone is efficacious for the treatment of nonresponsive otitis media caused by S. pneumoniae highly resistant to penicillin is yet to be determined.  相似文献   

10.
The epidemiology of community-acquired Pseudomonas aeruginosa infections in children during a one-year period (January through December 1993) was evaluated. A total of 6,859 clinical samples, each one representing a separate individual with suspected infection, were cultured. Pseudomonas aeruginosa was isolated from 218 children with various infections occurring in the following order of frequency: chronic suppurative otitis media, 76.3%; appendicitis/peritonitis, 10.3%; osteomyelitis, 8.9%; skin or soft tissue infection, 6.3%; acute conjunctivitis, 3.0%; and urinary tract infection, 0.1%. A variety of O serogroups were identified: O1 (15.2%), O6 (14.7%), O11 (12.4%), O10 (11.5%), O3 (10.6%), O5 (5.1%), and O9 (4.6%). Other serogroups and nontypable strains were recovered at a frequency of 11.2% and 14.7%, respectively. Nontypable strains predominated in chronic otitis media (18.9%), while serogroups O1 (18.3%), O6 (17.5%), and O11 (17.5%) were recovered most frequently among the typable isolates. Susceptibility of Pseudomonas aeruginosa to antipseudomonadal agents was extremely high. The rate of susceptibility to ceftazidime was 99.6%, to azlocillin 98.6%, to piperacillin 98.2%, to aztreonam 97.3%, to gentamicin and netilmicin 97.7%, and to ciprofloxacin 99.1%. All isolates were susceptible to tobramycin, imipenem, and amikacin. The results might suggest that community-acquired Pseudomonas aeruginosa infections in children can be treated successfully with any antipseudomonadal antibiotic.  相似文献   

11.
OBJECTIVE: To determine the relation between early bacteriologic eradication and clinical outcome of acute otitis media (AOM) in infants and young children treated with various antibiotics. STUDY DESIGN: The study group consisted of patients ages 3 to 24 months seen at the Pediatric Emergency Room with: (1) symptoms and physical findings consistent with AOM of < or = 7 days duration; (2) no spontaneous perforation or tympanostomy tubes; (3) positive initial middle ear fluid culture; and (4) a follow-up to at least Day 10+/-2 of the study with a second culture performed 72 to 96 h after initiation of antibiotic treatment. Any patient with a positive middle ear fluid culture 72 to 96 h after initiation of antibiotic treatment was considered to have bacteriologic failure. Otologic evaluation was done by an otolaryngologist unaware of the culture results and of the study drug allocation. A clinical score based on body temperature, report of irritability and ear tugging observed by the parents and the appearance and redness of the ear drum as observed by the otolaryngologist was also used for clinical evaluation. RESULTS: The study group consisted of 123 patients, of whom 57 (46%) had positive middle ear fluid 72 to 96 h after initiation of antibiotic treatment. Clinical failure was observed in 21 of 57 (37%) patients in whom bacteriologic eradication did not occur vs. only 2 of 66 (3%) patients with bacteriologic eradication after 3 to 4 days of treatment (P < 0.001). Clinical score for both moderate and severe disease decreased significantly faster in those with bacteriologic eradication than in those in whom middle ear fluid was still culture-positive 72 to 96 h after initiation of treatment. CONCLUSION: Clinical failures in our population were associated with inability to eradicate the causative organisms of AOM from the middle ear fluid within 3 to 4 days after initiation of antibiotic therapy. Most patients (including those without bacteriologic eradication) improved after 3 to 4 days of treatment, but patients with sterile middle ear fluid felt better after 3 to 4 days of treatment than patients in whom middle ear fluid was still culture-positive.  相似文献   

12.
Chronic suppurative otitis media (CSOM) in profoundly deaf patients is a contraindication for cochlear implantation. Eight (6%) of the 126 patients referred to cochlear implantation at this center between 1986 and 1992 became deafened as a result of bilateral CSOM but were otherwise suitable candidates. This study details the methods used in four patients to prepare the septic ear for a sterile device. Two patients had wet radical cavities with residual cholesteatoma, and two had discharging safe perforations resistant to surgical repair. Obliteration of the middle ear cleft with blind pit closure of the ear canal was attempted in all four patients, and cochlear implants were installed at a second operation 3 to 6 months later. The hearing results were as good as in implanted patients without CSOM, and the only complication has been the finding of a cholesteatoma pearl at the second operation in one patient. Fat obliteration of the mastoid and middle ear with blind pit closure of the ear canal can be adapted to make most chronic ears fit for implantation, if the patient is prepared to undergo two operations.  相似文献   

13.
Chronic suppurative otitis media (CSOM) without cholesteatoma, the surgical treatment of which is still controversial, is a common diagnosis in otologic practice. A retrospective analysis of 323 patients who underwent surgery for noncholesteatomatous chronic otitis media in the Gruppo Otologica, Piacenza, Italy, between April 1983 and December 1993 is presented. Cases were separated into three groups according to different surgical treatment modalities and conditions of the ears at the time of operation. Group I (n = 53) consisted of cases of CSOM treated by tympanoplasty without mastoidectomy (TLWOM). Group II (n = 28) included cases of CSOM treated by tympanoplasty with mastoidectomy (TLWM). Intact canal wall technique was used in these cases. The ears in both these groups were discharging severely at the time of surgery. Group III (n = 242) included patients whose ears were dry at the time of surgery but who had had previous recurrent episodes of suppuration and who were treated by TLWOM. At the last follow-up, graft success rates for groups I, II, and III were 90.5%, 85.7%, and 89.2%, respectively, and mean residual gaps were 17.2 dB, 20.1 dB, and 19.4 dB, respectively. There was no statistically significant difference between the three groups either on graft success rates (p > 0.05) or on final functional hearing outcome (p > 0.05). TLWM is the preferable treatment modality for most surgeons in noncholesteatomatous CSOM. Nevertheless, in our experience TLWOM yields comparable results for this group of patients. In addition, we could not find any significant difference in results of graft success and final functional hearing rates between dry and discharging ears (p > 0.05).  相似文献   

14.
The middle ear mucociliary system has been shown to have an important function in the clearance of effusions. Little is known, however, about its role in chronic suppurative otitis media (CSOM). The ciliary beat frequencies of middle ear mucosal biopsies and nasal brushings of 27 patients with CSOM were analysed using a computerized photometric technique. The ciliary beat frequency in the middle ear mucosa was significantly less than that in nasal mucosa. Frequency in ears of smoking patients was significantly lower compared with non-smoking patients. Nasal brushings were taken from 27 otherwise healthy age and sex-matched non-smoking controls and the ciliary beat frequency was very similar to nasal samples from patients with CSOM. Ear controls were obtained from otosclerotic patients undergoing tympanotomy and the beat frequency was significantly higher than in the ear of patients with CSOM. It is concluded that middle ear ciliary function is significantly reduced in CSOM, particularly in patients who smoke.  相似文献   

15.
Despite advances in public health and medical care, chronic suppurative otitis media is still prevalent around the world. It is most common in developing countries and in certain high risk populations in developed nations, as well as among children who have tympanostomy tubes inserted. Since this chronic infection is caused by persistent acute otorrhea, which in turn is usually secondary to acute otitis media, prevention should be directed toward prompt and appropriate treatment of the acute middle-ear infection. Repair of chronic perforations should prevent recurrence, since reinfection is due either to reflux of pathogenic organisms from the nasopharynx into the middle ear, or water contamination from the external canal. Information from epidemiological studies, which show that populations can be categorized into highest, high, low and lowest prevalence, can be helpful in setting national priorities for prevention and treatment.  相似文献   

16.
The recently accepted international classification for otitis media was applied to a study population of 898 children less than 12 years of age having otitis media with effusion persisting at least three months. Mucoid effusion was aspirated from 48% of ears, was found more often in younger than older patients, was more often bilateral, and was a more stable state during longitudinal observation than was serous otitis media or purulent otitis media (POM). Serous otitis media occurred in only 10% of ears, but was found more often than in younger patients; POM was found in only 7% of ears. Otoscopy did not distinguish among the three effusion types. Known middle-ear pathogens were cultured more often behind red and bulging tympanic membranes from these cases of chronic effusion than behind membranes lacking these characteristics. These observations provide an epidemiologic and clinical base for further investigations of these otitis media types.  相似文献   

17.
OBJECTIVE: To evaluate the efficacy and tolerability of intravenous empiric treatment with meropenem compared with ceftazidime-tobramycin in patients with hospital-acquired lower respiratory tract infections. DESIGN: Prospective, nonblind, randomized trial. SETTING: Multicenter trial conducted at 22 centers. PATIENTS: Two hundred eleven patients were enrolled and 121 were evaluable for the analysis of both clinical and bacteriologic efficacy. INTERVENTIONS: One hundred four patients were randomized to receive intravenous meropenem (1000 mg) every 8 hrs and 107 patients were randomized to receive intravenous ceftazidime (2000 mg) plus tobramycin (1 mg/kg) every 8 hrs. Sixty-three meropenem-treated patients and 58 ceftazidime-tobramycin-treated patients were eligible for the analysis of clinical and bacteriologic efficacy. In the ceftazidime-tobramycin group, 32 (55%) evaluable patients received more than six doses of tobramycin, 24 (41%) received six doses or fewer, and two (3%) did not receive any tobramycin. MEASUREMENTS AND MAIN RESULTS: The analysis of efficacy was based on the clinical and bacteriologic responses at the end of treatment. Satisfactory clinical responses occurred in 56 (89%) of 63 of the meropenem-treated patients and in 42 (72%) of 58 of the ceftazidime-tobramycin-treated patients (p = .04). Corresponding bacteriologic response rates were 89% and 67%, respectively (p = .006). The frequency and profile of drug-related adverse events was similar across treatment groups. Seizures were reported in three meropenem-treated patients, but these seizures were considered by the investigator to be unrelated to treatment. CONCLUSIONS: Meropenem is well tolerated and more efficacious than the combination of ceftazidime and tobramycin for the initial empiric treatment of hospital-acquired bacterial pneumonia.  相似文献   

18.
OBJECTIVES: To assess the clinical outcome and risk of failure after oral vs. intravenous treatment in otitis media caused by penicillin-resistant pneumococci. To determine the possible correlations between pneumococcal minimal inhibitory concentration (MIC) to penicillin and clinical outcome. DESIGN: Retrospective study of 156 cases collected between 1993 and 1995. Mean follow-up: 5 months. Setting. Two tertiary academic medical centers in Paris, France. PATIENTS AND METHODS: Pneumococcus was isolated from 191 of 570 ear samples obtained from children with otitis media and shown to be penicillin-resistant in 156. Medical history, antibiotic therapy during the previous 3 months and day-care center attendance were reviewed. For the current episode microbiologic characteristics of the isolated strains, type of treatment, therapy efficacy and clinical outcome were analyzed. Patients were predominantly young (76.3% were <1 year old) and bacteriologic samples were taken mainly because of previous treatment failure. RESULTS: Among 156 children with pneumococcal penicillin-resistant otitis media, 72.2% attended day-care centers, 71.8% had been previously treated with aminopenicillin and 52.5% with cephalosporins. Failure of previous empirical oral therapy was noted in 84% (one-third of these had been receiving amoxicillin-clavulanate). Patients treated intravenously had had a more protracted otitis but no greater number of previous episodes of acute otitis media than those receiving oral therapy. Acute mastoiditis occurred in 4 infants resulting in mastoidectomy. Oral treatment (mainly with high dose amoxicillin,120 to 150 mg/kg/day) and intravenous therapy (cephalosporin or glycopeptide) had been used in 59 and 41%, respectively. Mean duration of therapy was 10.7 days. Three failures (1.9%) and 10 recurrences (6.4%, average 28 days) occurred. No statistical difference was found between intravenous and oral therapy with respect to risk of recurrence. A high penicillin MIC value was correlated with previous antibiotic treatment but not with clinical outcome. CONCLUSIONS: Oral therapy appears to be as effective as intravenous therapy for the treatment of penicillin-resistant pneumococcal otitis media. Intravenous treatment should not necessarily be dictated by the penicillin susceptibility value but should be considered in cases of failure to thrive, persistent otitis or other complications.  相似文献   

19.
BACKGROUND: Cochlear implants have gained worldwide acceptance as a reliable method of rehabilitation of profoundly hearing-impaired patients. Due to thorough patient selection major postoperative complications rarely occur and are flap related in most cases. Deafness can develop during chronic suppurative otitis media, either coincidentally or secondary to the medical treatment; normally this condition is regarded as a contraindication for cochlear implantation. In cases with a mastoid cavity after surgical treatment for cholesteatoma, the electrode covered only by the epithelial lining will likely become exposed or extruded. Therefore we suggest the obliteration of the middle ear cleft with abdominal fat and the blindsac closure of the external ear canal before cochlear implantation in these conditions. PATIENTS: The average age of our 12 patients was 48 years, whereas the youngest was 2 1/2 years of age. Due to chronic inflammatory ear disease. 11 patients had a mastoid cavity on both ears. Eight patients had a cholesteatoma, the chronic bone destroying process in the temporal bone of two female patients was considered as a fibroinflammatory pseudotumor. The child had a congenital deafness in both ears with a Mondini dysplasia in CT scan. She had already developed two episodes of pneumococcal meningitis which was caused by a defect in the stapes footplate through which a liquor-filled cystic sac herniated in the middle ear. Because of a massive liquorrhoea after opening of the sac, we decided to obliterate the middle ear cleft after successful insertion of the electrode array. RESULTS: All active electrodes of 10 Nucleus implants (Cochlear) and two Clarion devices (Advanced Bionics Corp.) were successfully inserted in the cochlea of the 12 patients. After an average follow-up of 15 months, a temporary facial palsy in one patient and an insufficient closure of a retroauricular fistula over the mastoid cavity in two cases were observed as postoperative complications. One patient with a fibroinflammatory pseudotumor developed a massive inflammatory reaction in the implanted ear two months after cochlear implantation, which could not be controlled by conservative treatment. The implant had to be removed and local conditions settled after administration of immunosuppressive treatment with cyclophosphamide. The patient received a new implant seven months ago. CONCLUSIONS: Implantation of a foreign body in a potentially infected space which communicates intracranially means a surgical challenge which can be managed by obliteration of the middle ear after subtotal petrosectomy with abdominal wall fat combined with a reliable closure of the external ear canal. In case of massive inflammation we would prefer a two-stage procedure.  相似文献   

20.
Sixty-three children from 2 to 12 years of age were studied by means of brain stem evoked potentials (BEP) and otoscopic evaluation in a preliminary assessment of the sensitivity of BEP latency measures to middle ear abnormality. Wave I proved to be the most sensitive component; 81.25% of subjects with acute suppurative otitis media and 62.50% of subjects with secretory otitis media demonstrated latencies prolonged by more than 1 SD beyond the values observed in normal control subjects. Of the same subject groups, 86.21% and 93.31% demonstrated wave I latencies within normal limits upon retesting after the otitis had resolved. The BEP technique permitted identification of several subjects with abnormal audiometric findings despite normal otoscopy. There are implications for use of the BEP as a clinical adjunct to traditional methods of auditory assessment.  相似文献   

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