The role of high frequency tympanometry in newborn hearing screening programme (original) (raw)
Related papers
2018
Background and Aim: Middle ear of neonates is mass-dominant. Therefore, by increasing the frequency of probe tone from 226 Hz to 1000 Hz, middle ear abnormalities can be detected better. This study aimed to evaluate the effect of age, sex, ear and weight on the characteristics of 1000 Hz tympanometry in neonates. Methods: A total of 255 neonates (136 boys and 119 girls) aged from 1 to 90 days, with normal transient evoked otoacoustic emissionat least in one ear were studied. Compensated static admittance at middle ear pressure (YPP) and admittance at pressure of +200 daPa (Y200) were measured with 1000 Hz tympanometry. Results: Mean (SD) YPP and Y200 values were 0.97 (0.48) and 2.07 (0.46) mmho in the right ears and 0.98 (0.53) and 2.05 (0.48) mmho in the left ears, respectively. In both ears, gender had no significant effect on compensated YPP, but Y200 values were significantly different between girls and boys (p<0.05). Ear did not affect the YPP and Y200 values. There was also a linear relationship between age and weight
Effectiveness Of Transient Evoked Otoacoustic Emission (TEOAE) Test For Neonatal Auditory Screening
Journal of Bahria University Medical and Dental College, 2018
Objective: The purpose of this study is to assess the efficacy of Transient Evoked Otoacoustic Emission (TEOAE) as screening test for auditory function in neonates. Study Design: A cross-sectional study Place and Duration of Study: This study was conducted at United Medical and Dental College, Creek General Hospital, Karachi, from July 2106 to May 2017. A total number of 120 newborn babies were screened for hearing loss before discharge from hospital but 20 were lost for follow up and 100 cases were included in this study. Method: TEOAE was done in all neonates born during this period at 3rd day after birth. Those who were found to have hearing loss, TEOAE was repeated at the end of 1st week and again in 6th week after birth. BERA was done in those cases who showed hearing loss on TEOAE on all three occasions. All the 100 cases were followed up regularly for more than one year for appearance of any sign or symptom related with hearing loss or speech development failure. Result: Out ...
International Archives of Otorhinolaryngology, 2013
Introduction For infants under 6 months, the literature recommends 1,000-Hz tympanometry, which has a greater sensitivity for the correct identification of middle ear disorders in this population. Objective To systematically analyze national and international publications found in electronic databases that used tympanometry with 226-Hz and 1,000-Hz probe tones. Data Synthesis Initially, we identified 36 articles in the SciELO database, 11 in the Latin American and Caribbean Literature on the Health Sciences (LILACS) database, 199 in MEDLINE, 0 in the Cochrane database, 16 in ISI Web of Knowledge, and 185 in the Scopus database. We excluded 433 articles because they did not fit the selection criteria, leaving 14 publications that were analyzed in their entirety. Conclusions The 1,000-Hz tone test has greater sensitivity and specificity for the correct identification of tympanometric curve changes. However, it is necessary to clarify the doubts that still exist regarding the use of this test frequency. Improved methods for rating curves, standardization of normality criteria, and the types of curves found in infants should be addressed.
This paper aimed at evaluating the characteristics of highfrequency (1,000 Hz) acoustic admittance (ya) for the neonates with transient evoked otoacoustic emissions (TEOAE) as either pass or refer group. Subjects and Methods: Using a 1,000 Hz probe tone, 297neonates (152 male, 145 female aged 0-104 days old) were evaluated. Tympanometric parameters admittance value at +200 dapa, middle ear admittance, and tympanometric peak pressure were calculated for each tympanogram. Results: The mean of ya was 0.9678 mmho in the TEOAE for the pass group and 0.7229 mmho in the refer group. The mean of acoustic admittance at +200 (y200) was 2.0657 in the TEOAE for the pass group and 1.7191 for the refer group. The mean of Tpp was 23/8591 in the TEOAE for the pass group and 59/7619 for the refer group. Conclusions: There were significant differences in the distribution of different types of tympanograms, the mean of ya, tympanic peak pressure, and y200 between the TEOAEs for the pass and the refer groups.
The Medical journal of Malaysia, 2005
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.
Neonatal screening of hearing function by otoacustic emissions: A single center experience
Vojnosanitetski pregled, 2012
Background/Aim. Nowadays development of techniques enables detection of hearing impairment in a very short time, immediately after birth by using otoacoustic emissions. They are low-pitched sounds produced in physiologically clear cochlea and can be recorded in cochlear outer meatus. By this method, complete data are found on a whole presynaptic auditory nervous system functioning that has mostly been affected by pathological changes making it a perfect screening test. Reliability and sensibility of this method is up to 98%. The aim of this study was to present the first results of systematic neonatal screening of hearing function by otoacoustic emissions in the Clinical Center Kragujevac (Kragujevac, Serbia). Methods. This prospective study of neonatal hearing screening function, initiated systematically by the 2008 at the Clinical Center Kragujevac, included full-term newborns and premature born ones, within the first 24 h after birth, using a DPOAEs interacoustics otoread-screene...
Clinical Pediatrics: Open Access, 2016
Introduction: Hearing impairment is one of the commonest congenital disabilities in the world. Early diagnosis is essential to minimize or to prevent the disability. There are many screening methods and protocols for newborn hearing screening. TEOAE has high sensitivity and less time consuming than DPOAE. DPOAE is highly specific but more time consuming than TEOAE. This study aims to compare the accuracy of DPOAE and TEOAE by using ABR evaluation on high risk newborn. Methods: This study was conducted on 1000 high risk newborns admitted to SCBU, CWH (Mandalay). Cases were selected with inclusion and exclusion criteria. The newborns after day 3 were screened with both DPOAE and TEOAE tests on every Monday, Wednesday and Friday. All included newborns underwent ABR confirmation at ENT Department, EENT Hospital (Mandalay). Result: For the 1000 left ears, DPOAE yielded 787 'pass' and 213 'refer'. For the 1000 right ears, DPOAE yielded 776 'pass' and 224'refer'. For the 1000 left ears, 737 had passed TEOAE and 263 were not passed the test. For the 1000 right ears, 752 had passed TEOAE and 248 were referred. Sensitivity of DPOAE is 97.57% and specificity is 95.39%.False positive rate is 4.60% and false negative rate is 2.42%. Sensitivity of TEOAE is 96.49% and specificity is 90.60%. False positive rate is 9.39% and false negative rate is 3.50%. Conclusion: It can be concluded that TEOAEs are useful for universal newborn hearing screening because it has short duration with acceptable accuracy and DPOAEs are useful for high-risk neonates as a hearing screening test because of good correlation between DPOAE and threshold of wave V of ABR.
Multifrequency Tympanometry in Neonatal Intensive Care Unit and Well Babies
Journal of the American Academy of Audiology, 2008
Background: Conventional low probe tone frequency tympanometry has not been successful in identifying middle ear effusion in newborn infants due to differences in the physiological properties of the middle ear in newborn infants and adults. With a rapid increase in newborn hearing screening programs, there is a need for a reliable test of middle ear function for the infant population. In recent years, new evidence has shown that tympanometry performed at higher probe tone frequencies may be more sensitive to middle ear disease than conventional low probe tone frequency in newborn infants.
A Preliminary Attempt to Profile Tympanometric Measures in Infants Using High Frequency Probe Tones
Indian Journal of Otolaryngology and Head & Neck Surgery, 2016
There is dearth of published data on high frequency tympanometric measures for infants in Indian context. Aim of present study was to profile Peak compensated static acoustic admittance (Ytm), Tympanometric peak pressure (TPP), Tympanometric width (TW) and Equivalent ear canal volume (Vea) in infants. Cross-sectional study on 50 infants with present TEOAEs and with risk indicators for hearing loss. Tympanometry was performed using GSI-Tympstar for 678 and 1000 Hz probe tones. Descriptive statistics were used to determine mean, SD and minimum and maximum for both genders. Using 678 Hz, Ytm ranged from 0.09 to 1. 48 mmho (males) and 0.11 to 1.14 mmho (females), while with 1000 Hz ranged from 0.15 to 1.49 (males) and 0.13-1.61 mmho (females). Using 678 Hz, TPP ranged from-95 to 70 daPa (males) and-155 to 80 daPa (females), while with 1000 Hz ranged from-75 to 95 daPa (males) and-145 to 50 daPa (females). Using 678 Hz, TW ranged from 30 to 190 daPa (males) and 40-23 daPa (females), while with 1000 Hz ranged from 60 to 210 daPa (males) and 40-183 daPa (females). Using 678 Hz, Vea ranged from 0.11 to 1.7 mmho (males) and 0.14-2.5 mmho (females), while with 1000 Hz ranged from 0.14 to 2.0 mmho (males) and 0.14-3.6 mmho (males). This study was a preliminary attempt to profile the tympanic measures. Ytm values were lesser or similar to other studies, TPP and Vea values had lower and narrow range, while TW were more than previous studies. Keywords Peak compensated static acoustic admittance Á Tympanometric peak pressure Á Tympanometric width Á Equivalent ear canal volume Á Tympanometric measures in infants Á High frequency tympanometry Abbreviations JCIH Joint committee on infant hearing
Success rate of newborn and follow-up screening of hearing using otoacoustic emissions
International journal of pediatric otorhinolaryngology, 2006
During the last 6 years, and after a long period of pilot study, a universal newborn hearing screening program based on otoacoustic emissions is implemented in Iaso Maternity Hospital. Our purpose is to present the success rate of otoacoustic emission testing on discharge from the hospital and 1 month later. All full-term newborns who were screened during a period of 2 years and failed testing after one or more sessions of transiently evoked otoacoustic emissions, on discharge from the hospital, were included in the study. These newborns were retested approximately 1 month after discharge. Twenty-five thousand and thirty-two newborns were examined in total. We found 534 (2.1%) 'refer' cases. Only 223 of them (41.8%) returned to retest in follow-up after 1 month. From the rescreening, 59 (2.3 per thousand) newborns failed in the test again and were referred for diagnostic audiological evaluation. The rate of referrals was small, but efforts should be made to decrease it furth...