Displaying publications 1 - 20 of 186 in total

Abstract:
Sort:
  1. Some observations on the integration of classes for deaf children in schools for the hearing
    HICKES JM
    Med J Malaya, 1963 Mar;17:156-62.
    PMID: 13961121
    Matched MeSH terms: Hearing Loss*
  2. Fulltext Blast injuries of the ear
    Singh AP, Prasad U, Kumar N
    Singapore Med J, 1983 Dec;24(6):367-73.
    PMID: 6681493
    Clinical synopsis and investigations on fourteen patients with blast injuries of the ear successfully treated at the ENT Unit of the University Hospital, Kuala Lumpur, revealed few interesting observations in addition to usual findings. The most outstanding one was the absence of sensorineural deafness, although it has been claimed as one of the most constant features. Conservative management alone was found to be of significant value.
    Matched MeSH terms: Hearing Loss, Noise-Induced/diagnosis*
  3. A study of the results of speech language and hearing assessment of three groups of repaired cleft palate children and adults
    Abdullah S
    Ann Acad Med Singap, 1988 Jul;17(3):388-91.
    PMID: 3218930
    The results of speech, language and hearing assessment of repaired cleft palate children and adults over a 4-year period at the Speech/Language therapy unit, Department of ENT, Faculty of Medicine, UKM are reported. The subjects were 33 incomplete cleft lip palate (ICLP), 48 unilateral complete cleft lip and palate (UCLP) and 26 bilateral complete cleft lip and palate (BCLP). Results obtained for the following assessments are reported and discussed: (i) Hearing assessment, (ii) intelligibility rate, (iii) severity of hyper-nasality and (iv) types of articulation errors and school/behaviour problems and nasal grimace. Due to subject variability in ethnicity, language and dialects and the lack of normal data, it is difficult to compare or repeat previously reported results. Assessment of intelligibility, hypernasality and articulation were conducted using the Malay language. Results obtained were compared among the three groups of subjects. The significant findings were that hypernasality, intelligibility and articulation errors were more severe in the ICLP group than in the UCLP or BCLP groups of patients. This is contrary to expectations and cannot be explained in terms of the type and/or the degree of clefting. Hence, special attention should be paid to the less overt type of cleft patients in so far as their speech assessment and rehabilitation are concerned.
    Matched MeSH terms: Hearing Loss, Conductive/etiology*; Hearing Loss/etiology*
  4. Fulltext Idiopathic sudden sensorineural deafness--an approach to the problem.
    V K Khanijow VK, Raman R
    Singapore Med J, 1988 Feb;29(1):76-7.
    PMID: 3406777
    Matched MeSH terms: Hearing Loss, Sensorineural*
  5. Fulltext The noise exposed factory workers: the prevalence of sensori-neural hearing loss and their use of personal hearing protection devices
    Maisarah SZ, Said H
    Med J Malaysia, 1993 Sep;48(3):280-5.
    PMID: 8183139
    A total of 524 industrial workers were studied. They consisted of 442 noise exposed and 82 non-noise exposed workers. The purpose was to compare the prevalence of sensori-neural hearing loss among the noise exposed and the non-noise exposed workers, to study their knowledge on the hazard of noise to hearing and the workers' attitude towards the hearing protection devices. The prevalence of sensori-neural hearing loss was significantly higher among the noise exposed workers, i.e., 83% versus 31.7% (p < 0.01). However, the prevalence of hearing impairment was much lower for both groups, being 30.1% for the noise exposed and 3.7% for the non-noise exposed group. Although hearing protection devices were provided to 80.5% of the workers, only 5.1% were wearing them regularly. The possibility of developing hearing loss due to exposure to excessive noise was only known by 35.5% of the noise exposed workers. This awareness was found to have a positive correlation with the workers' compliance to the hearing protection devices. Our findings highlight the need for workers to be educated on the hazards of excessive noise exposure to hearing.
    Matched MeSH terms: Hearing Loss, Noise-Induced/epidemiology*; Hearing Loss, Sensorineural/epidemiology*; Hearing Loss, Sensorineural/prevention & control
  6. Fulltext Idiopathic sudden sensorineural hearing loss. University hospital experience
    Amin JM
    Med J Malaysia, 1993 Dec;48(4):407-9.
    PMID: 7514259
    Thirty patients with idiopathic sudden sensorineural hearing loss who presented to the University Hospital between January 1985 to January 1992 are presented. The combined regime of bed rest, intravenous dextran 40, vasodilator and steroid therapy produced good improvement in 63.4% of patients. Unfavourable prognostic factors were found to be, hearing loss of more than two weeks duration, vertigo and bilateral hearing loss.
    Matched MeSH terms: Hearing Loss, Sensorineural/therapy*
  7. Additional conductive hearing loss in children from a school for the deaf in Malaysia
    Elango S, Htun YN, Raza H
    Int J Pediatr Otorhinolaryngol, 1994 Jan;28(2-3):125-8.
    PMID: 8157410
    A total of 165 children from a school for the deaf in Malaysia were screened to find out the prevalence of additional conductive hearing loss. Otological examination, tympanometry and pure tone audiometry were performed in all these children. Fifty-one children (30.9%) had additional conductive hearing loss. Middle ear disorders were present in 15 children (9.09%). The deaf children seldom complain about the change in their hearing sensitivity, so there is a need for regular otological examination in deaf children to detect the additional conductive hearing loss.
    Matched MeSH terms: Hearing Loss, Conductive/complications; Hearing Loss, Conductive/diagnosis*
  8. Risk factors associated with hearing loss in term neonates with hyperbilirubinaemia
    Boo NY, Oakes M, Lye MS, Said H
    J Trop Pediatr, 1994 Aug;40(4):194-7.
    PMID: 7932930
    A study of 128 jaundiced term neonates showed that 28 (22 per cent) had hearing loss based on brain stem-evoked response. There was no significant difference in the percentage of neonates with hearing loss between those with peak serum bilirubin levels of less than 340 mumol/l (16 per cent) and those with hyperbilirubinaemia > 339 mumol/l (33 per cent) (P = 0.11). Logistic regression analysis showed that severe jaundice which required exchange transfusion and earlier age of onset of hyperbilirubinaemia were statistically significant risk factors associated with hearing loss (P = 0.038 and P = 0.012, respectively).
    Matched MeSH terms: Hearing Loss/diagnosis; Hearing Loss/etiology*; Hearing Loss/epidemiology
  9. Pure-tone audiometry and auditory brainstem responses in noise-induced deafness
    Noorhassim I, Kaga K, Nishimura K
    Am J Otolaryngol, 1996 1 1;17(1):31-5.
    PMID: 8801813
    PURPOSE: The objective of this study is to find the relationship between pure-tone audiometry results and the auditory brainstem response wave abnormalities.

    SUBJECTS AND METHODS: The pure-tone audiometry (PTA) and auditory brainstem responses (ABRs) from 22 patients (44 ears) with diagnosed noise-induced permanent hearing loss were studied. Three indices of PTA were average thresholds of 0.5 kHz/, /1 kHz, and 2 kHz (PTA1); 2 kHz and 4 kHz (PTA2); and 4 kHz (PTA3) were subdivided into 3 thresholds of hearing. Their relationships with ABR results were analysed. The patterns of PTA from various groups of ABR wave patterns were studied.

    RESULTS: In this study, the abnormal ABR wave patterns were detected in 72.7% of the ears. The ears with prolonged ABR wave latency, absent early waves, prolong interpeak wave I-V latency was 20.5%, 18.2%, and 21.1%, respectively. Normal ABRs were recorded in 27.3% of the ears despite marked thresholds elevation of the PTA at high frequencies. Other relationships between PTA results and ABR wave results were discussed.

    CONCLUSION: There were relationships between severity of noise-induced hearing loss indicated by PTA and the patterns of ABR wave abnormalities among workers with noise-induced permanent hearing loss.

    Matched MeSH terms: Hearing Loss, Noise-Induced/diagnosis*
  10. Fulltext Post meningitic sensori-neural hearing loss in children--alterations in hearing level
    Yeat SW, Mukari SZ, Said H, Motilal R
    Med J Malaysia, 1997 Sep;52(3):285-90.
    PMID: 10968099
    Post meningitic sensori-neural hearing loss was studied in forty new cases of bacterial meningitis and ten cases of viral meningitis treated at the Pediatric Institute, Kuala Lumpur Hospital from April 1991 to March 1992. Hearing assessment at 2 weeks, 3 months and 6 months following the diagnosis of meningitis using Brain Stem Evoked Response Audiometry showed that hearing loss was prevalent only in patients with bacterial meningitis. Hearing loss was detected in 32.5% of these patients during the acute phase of the disease, 22.8% after 3 months and 24.2% after 6 months. In 63.6% of the affected cases, hearing loss was bilateral. In 61.5% of the patients who had hearing loss during the acute phase of the disease, it was permanent, 16.7% had either partial or complete recovery and, 15.4% had deterioration in hearing level. In 2 cases the subsequent hearing level was unknown. The risk of developing sensori neural hearing loss was found to be significantly higher in patients who developed other neurological sequelae. The study highlights the importance of performing repeated hearing assessment in children with bacterial meningitis and the difficulty in appropriate selection of hearing aids in the early stages.
    Matched MeSH terms: Hearing Loss, Sensorineural/etiology*
  11. Vancomycin administration in continuous ambulatory peritoneal dialysis: the risk of ototoxicity
    Gendeh BS, Gibb AG, Aziz NS, Kong N, Zahir ZM
    Otolaryngol Head Neck Surg, 1998 Apr;118(4):551-8.
    PMID: 9560111
    A prospective study was undertaken in 16 patients with chronic renal failure on continuous ambulatory peritoneal dialysis, with 22 episodes of peritonitis treated with vancomycin, a known ototoxic agent. Twelve patients had one episode each, and four had recurrent peritonitis. Each treatment course consisted of two infusions of vancomycin (30 mg/kg body weight) in 2 L of peritoneal dialysate administered at 6-day intervals. Serum vancomycin analyzed by enzyme immunoassay showed a mean trough level of 11.00 microg/ml on day 6 and mean serum levels of 33.8 and 38.6 microg/ml about 12 hours after administration on days 1 and 7, respectively. Similar levels, well within the therapeutic range, were encountered with repeated vancomycin therapy for recurrent episodes of peritonitis, suggesting that no changes occurred in the pharmacokinetic profile of the drug. Pure-tone audiometry, electronystagmography, and clinical assessment performed during each course of treatment showed no evidence of ototoxicity even on repeated courses of vancomycin therapy. The results suggest that vancomycin therapy when given in appropriate concentrations as a single therapeutic agent is both effective and safe. We believe, however, that vancomycin administered in combination with an aminoglycoside may produce ototoxic effects that may be greatly aggravated, possibly because of synergism.
    Matched MeSH terms: Hearing Loss, Sensorineural/blood; Hearing Loss, Sensorineural/chemically induced*; Hearing Loss, Sensorineural/diagnosis
  12. Fulltext Ear infection and hearing loss amongst headphone users
    Mazlan R, Saim L, Thomas A, Said R, Liyab B
    Malays J Med Sci, 2002 Jul;9(2):17-22.
    PMID: 22844220 MyJurnal
    The use of headphone has been thought to cause infection in the ear canal and contribute to hearing loss. In this study, we examined 136 Customer Service Representative from Celcom (Malaysia) Sdn. Bhd. who use headphone throughout their working hours. The purpose of this study was to determine the prevalence of ear canal infection and other related diseases of the ear, nose and throat. Their hearing thresholds were also determined using the Amplaid 309 Clinical Audiometer. We found no incidence of infection of the external ear canal amongst the subjects. There were 4 cases of chronic middle ear infection and 4 cases of impacted wax. Hearing impairment was found in 25 subjects (21.2%). However, there was no significant association between hearing loss and the exposure to sound from headphone usage because the high frequencies were not predominantly affected. There was also no association between hearing loss and duration of service.
    Matched MeSH terms: Hearing Loss
  13. Preoperative high resolution CT and MR imaging in cochlear implantation
    Abdullah A, Mahmud MR, Maimunah A, Zulfiqar MA, Saim L, Mazlan R
    Ann Acad Med Singap, 2003 Jul;32(4):442-5.
    PMID: 12968546
    INTRODUCTION: Accurate preoperative imaging of the temporal bone in patients receiving cochlear implants is important. High resolution computed tomography (HRCT) and magnetic resonance (MR) imaging are the 2 preoperative imaging modalities that provide critical information on abnormalities of the otic capsule, pneumatisation of the mastoid, middle ear abnormalities, cochlear ducts patency and presence of cochlear nerve.

    MATERIALS AND METHODS: The HRCT and MR imaging in 46 cochlear implant patients in our department were reviewed.

    RESULTS: Majority of our patients [34 patients (73.9%)] showed normal HRCT of the temporal bone; 5 (10.9%) patients had labyrinthitis ossificans, 2 (4.3%) had Mondini's abnormality and 2 (4.3%) had middle ear effusion. One patient each had high jugular bulb, hypoplasia of the internal auditory canal and single cochlear cavity, respectively.

    CONCLUSION: The above findings contribute significantly to our surgical decisions regarding candidacy for surgery, side selection and surgical technique in cochlear implantation.

    Matched MeSH terms: Hearing Loss, Sensorineural/diagnosis; Hearing Loss, Sensorineural/surgery
  14. Histopathology of the inner ear in unoperated acoustic neuroma
    Mahmud MR, Khan AM, Nadol JB
    Ann Otol Rhinol Laryngol, 2003 Nov;112(11):979-86.
    PMID: 14653368
    Although hearing loss is the most common presenting symptom in patients with acoustic neuroma, the pathophysiology of hearing loss associated with acoustic neuroma is unknown. Although primary dysfunction of the auditory nerve is intuitively logical, available histopathologic and clinical data suggest that although neural degeneration is common, it alone does not adequately account for hearing loss in many cases. The purpose of this study was to evaluate 11 cases of unoperated unilateral acoustic neuromas. Temporal bones were identified by means of a search mechanism provided by the National Temporal Bone, Hearing, and Balance Pathology Resource Registry and were prepared for light microscopy by standard techniques. Quantification of spiral ganglion cells, hair cells, stria vascularis, and spiral ligament was accomplished for each specimen. In addition, the maximum diameter and volume of each tumor were calculated from histopathologic sections. Increasing tumor size did predict a reduced spiral ganglion count. However, although there was a tendency for decreasing spiral ganglion cell count and for increasing tumor size to predict a higher pure tone average and lower speech discrimination score, these correlations did not reach statistical significance. In tumor ears in which the speech discrimination score was 50% or less, there was always significant degeneration of other structures of the inner ear in addition to neurons, including hair cells, the stria vascularis, and the spiral ligament. Endolymphatic hydrops and eosinophilic precipitate in the perilymphatic spaces were found in 2 of 3 such cases. It is concluded that acoustic neuromas appear to cause hearing loss, not only by causing degeneration of the auditory nerve, but also by inducing degenerative changes in the inner ear. It is hypothesized that the proteinaceous material seen histologically may represent the products of up-regulated genes in acoustic neuroma, some of which may interfere with normal cochlear function.
    Matched MeSH terms: Hearing Loss/diagnosis; Hearing Loss/etiology
  15. Fulltext The prevalence or oral diseases and treatment needs in the institutionalized elderly in Sabah
    Loke, S.T., Jalil, N.A., Giant, E.W., Lee, S.H.C.
    Malaysian Journal of Public Health Medicine, 2003;3(1):30-35.
    MyJurnal
    The main objective of the study was to determine the oral health status and possible factors influencing oral hygiene in the institutionalized elderly in Sabah. A cross sectional study in all four institutions for the elderly in QM ii Sabah was conducted using oral examination and interview/questionnaires. Qualitative assessment using Focus Group Discussion was carried out in the caregivers of the institutions. Plaque score was used to assess oral hygiene status. A total of 94.0% of inmates were above 55 years old. There were 13.4 % non-respondents in the total sample of 284. Of the n0n—respondents, 42.4 % had mental disorders and this was statistically signnicant. Of those who responded 34.6% had good 33.3% fair and 32.1% poor oral hygiene. 33.5% were completely edentulous, 86.4% had gingivitis which required scaling, 22.0% had decayed teeth and 54.9% required extraction. Gingivitis, decayed teeth and number of teeth for extraction were signwcantly associated with poor oral hygiene. 14.2% had at least one type of oral disease. Dental abscess was the most common muco»cutaneous lesion found. Mental disorders showed a trend towards poor oral hygiene and this was statistically signyicant. Although 40.8% had physical handicap, 23.3% visual impairment and 8.2% hearing impairment, there was no significant association with oral hygiene status. In conclusion, oral health status of the population is poor and treatment needs are high. Although there was high objective need for oral care (88.6%), perceived need was low (32.0%).
    Matched MeSH terms: Hearing Loss
  16. Fulltext Rheumatoid pachymeningitis
    Tan HJ, Raymond AA, Phadke PP, Rozman Z
    Singapore Med J, 2004 Jul;45(7):337-9.
    PMID: 15221051
    Symptomatic rheumatoid pachymeningitis is a rare extra-articular manifestation of rheumatoid arthritis. Clinical symptoms are non-specific and diagnosis is frequently made by exclusion. We present a 61-year-old woman with a 9-year history of rheumatoid arthritis presenting with deafness and progressive disability over a two month duration. She was diagnosed as having rheumatoid pachymeningitis based on the cerebral magnetic resonance imaging findings.
    Matched MeSH terms: Hearing Loss, Sensorineural/etiology
  17. Hearing loss in walkman users
    Sofia Jaffer, Mohd Shakil Razi
    Journal of Occupational Safety and Health, 2004;1(1):31-37.
    MyJurnal
    This retrospective study was conducted at the audiology clinic of UKM in the year 2000. It was intended to detect the effect of walkman on the hearing system of its users and to investigate whether distortion product otoacoustic emission test can provide an early and reliable sign of cochlear damage or not. Distortion product otoacoustic emission test helps to determine the function of outer hair cell. Outer hair cells get damaged with exposure to loud sound, drugs and aging. Thirty subjects (20 in the study group and 10 in the control group), between the ages of 19-25 years, who fulfilled all the criteria of selection, were investigated. There were two sets of criteria (general and specific). Anyone, in the control or study group, failing in any of these criteria was excluded from the study. According to the general criteria, it was essential for all the subjects to have clean ear canals, normal hearing at all the frequencies (250Hz- 8000Hz), normal middle ear function (Type A tympanogram), no middle ear problem, not used/using any ototoxic medicine, no family history of hearing loss, no history of ear surgery, not exposed to any form of loud noise like disco, concert, F1 racing or gun shooting. According to the special criteria it was essential for the subjects in the control group to have never used a walkman and those in the study group must have been using a walkman for at least 6 months. Comparison of distortion product emission levels between control and study groups revealed that emissions were significantly lower in the study group, across all the frequencies, suggesting outer hair cell damage in the walkman users. These differences reached level of statistical significance (p<0.05) at 2, 4, 6 and 8kHz. Using walkman at an intensity unsafe for hearing and a duration longer than recommended is suspected for the outer hair cell damage in our study group. Those using walkman for longer duration and higher intensity manifested much lower emission levels. Our study supports the literature that distortion product emission test is a much sensitive test than pure-tone audiometry, as it can detect cochlear damage long before it appears in an audiogram. It is recommended that people who are exposed to loud noise regularly should be monitored with distortion product emission test. It is suggested that the use of walkman.
    Study site: Audiology clinic, Pusat Perubatan Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
    Matched MeSH terms: Hearing Loss
  18. Fulltext Sensitivity and specificity of portable transient otoacoustic emission (TEOAE) in newborn hearing screening
    Abdullah A, Long CW, Saim L, Mukari SZM
    Med J Malaysia, 2005 Mar;60(1):21-7.
    PMID: 16250276 MyJurnal
    Early identification and management of hearing impairment is very valuable. The goal standard measurement of hearing loss is by brainstem evoked response (BSER). This prospective study was conducted in Hospital University Kebangsaan Malaysia (HUKM) to determine the sensitivity and specificity of transient evoked otoacoustic emission (TEOAE) as a screening tool for hearing impairment from February 1999 to February 2000. One hundred and thirty-three newborns from postnatal ward and seventy-eight newborns from neonatal intensive care unit (NICU) were screened for possible hearing loss using portable TEOAE. This study showed that TEOAE is a very sensitive but moderately specific screening tool.
    Matched MeSH terms: Hearing Loss/diagnosis*
  19. Fulltext Cochlear implantation in congenital cochlear abnormalities
    Ahmad RL, Lokman S
    Med J Malaysia, 2005 Aug;60(3):379-82.
    PMID: 16379199
    Many children have benefited from cochlear implant device including those with congenital malformation of the inner ear. The results reported in children with malformed cochlea are very encouraging. We describe 2 cases of Mondini's malformation with severe sensorineural hearing loss. Cochlear implantation was performed and both of them underwent post-implantation speech rehabilitation. Post-implantation, both of them were noted to respond to external sound. But the second case developed facial twitching a few months after the device was switched on. It is important to evaluate the severity of the inner ear deformity and the other associated anomalies in pre-implantation radiological assessment in order to identify the problem that may complicate the surgery and subsequent patient management.
    Matched MeSH terms: Hearing Loss, Sensorineural/radiography; Hearing Loss, Sensorineural/surgery*
  20. Fulltext Large vestibular aqueduct syndrome
    Dipak S, Prepageran N, Sazila AS, Rahmat O, Raman R
    Med J Malaysia, 2005 Oct;60(4):489-91.
    PMID: 16570713
    Large Vestibular Aqueduct Syndrome is a congenital malformation of the temporal bone characterised by early onset of sensorineural hearing loss and vestibular disturbance. Familial large vestibular aqueduct syndrome suggests autosomal recessive or X-linked inheritance and accounts for non-syndromic sensorineural hearing loss in these patients.
    Matched MeSH terms: Hearing Loss, Sensorineural/congenital*; Hearing Loss, Sensorineural/physiopathology
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links