Auditory brainstem response morphology and analysis in very preterm neonatal intensive care unit infants

Coenraad, Saskia; Toll, Martijn S.; Hoeve, Hans; Goedegebure, André

doi:10.1002/lary.22140

Cited by 29 publications

(21 citation statements)

References 12 publications

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“…Auditory brainstem response (ABR) was considered as a potential method and was therefore explored in several studies. In a vast majority of infants even born at 26 weeks of gestation, an auditory signal could be detected in the developing brain (Coenraad et al 2011b). Also, differences in aetiologic factors could be seen distinguishing between infants with certain diseases and without these diseases (Coenraad et al 2011a).…”

Section: Sound Designmentioning

confidence: 99%

A quiet NICU for improved infants’ health, development and well-being: a systems approach to reducing noise and auditory alarms

Freudenthal

Stuijvenberg²,

Goudoever

2012

Cogn Tech Work

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Section: Sound Designmentioning

confidence: 99%

A quiet NICU for improved infants’ health, development and well-being: a systems approach to reducing noise and auditory alarms

Freudenthal

Stuijvenberg²,

Goudoever

2012

Cogn Tech Work

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“…Between 24 and 42 h of age, failure on 1st OAE failed was twice more among LP than full-term infants. This is probably due to younger GA of the LP infants and is possibly related the known delayed maturation of the hearing system after birth in premature infants [3,8,18,19]. GA of 35⁰-37 6 weeks should be included among the risk factors for failure on 1st OAE.…”

Section: Discussionmentioning

confidence: 99%

“…Sleifer et al [18], Casali and Santos [3] and Coenraad et al [19] performed auditory brainstem response (ABR) tests in neonates and found that maturation of the hearing system after birth in term infants differs significantly from that in premature infants. This led to the recommendation to screen premature infants only after 34 weeks' postmenstrual age [19]. Weichbold et al [8] also showed that prematurity <33 weeks is a significant risk factor for hearing loss.…”

Section: Introductionmentioning

confidence: 99%

Impact of Gestational Age on Neonatal Hearing Screening in Vaginally-Born Late-Preterm and Early-Term Infants

et al. 2013

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Background: Late-preterm and early-term (LP-ET) infants, defined herein as 35⁰-37⁶ weeks' gestation, often fail on 1st otoacoustic emissions (OAE) test. Hypothesis: LP-ET infants fail more than term infants (38⁰-42 weeks' gestation) on the 1st OAE test. Aim: To evaluate the effect of gestational age on the 1st OAE test. Methods: We studied 1,572 vaginally-delivered (VD) infants ≥35 weeks' gestation (1.1.2011-30.9.2011). Perinatal and neonatal variables and results of OAE tests were recorded. Results: LP-ET infants, compared to full-term infants, had a significantly 2-fold higher need for repeated hearing tests: 80.2 versus 43.3 tests/1,000 neonates, respectively (p = 0.026). Univariate analysis showed that late prematurity and age at 1st OAE were significantly associated with failure on 1st OAE. At age 24-42 h, failure on 1st OAE was 2-fold higher in the LP-ET infants than in full-term infants: 9.4 versus 4.7% (p = 0.02). Risk for failure on 1st OAE was age-dependent: 9-fold higher when 1st OAE was performed at 24-42 h of age (5.3%) versus 0.6% after age 42 h. Multivariate analysis showed that variables that were independently significantly associated with failure on 1st OAE included late prematurity (OR 2.0 (1.1-3.7)) and age at 1st OAE (OR 9.2 (1.2-70.7)). Conclusions: Compared to term infants, VD LP-ET infants had 2-fold higher rates of failure on 1st OAE (up to 42 h of life) and needed repeated hearing tests. Failure rates after 42 h become negligible in both groups. In VD LP-ET infants, 1st OAE is better performed after 42 h of age.

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“…Analyzing the ABR in premature [ 87 ]. The greatest change in latencies and amplitudes comes after birth.…”

Section: Eeg and Amplitude-integrated Eeg (Aeeg)mentioning

confidence: 99%

Monitoring the Neonate: Basic Science

Patiño

Kurth

McAuliffe

2014

Neonatal Anesthesia

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Pulse Oximetry: The use of pulse oximetry to measure arterial oxygen saturation in anesthesiology is standard of care. Pulse oximetry relies on the Beer-Lambert law, which relates the concentration of a chromophore to light absorption, optical path length, and extinction coeffi cient. In pulse oximetry, the chromophores of interest are oxy and deoxyhemoglobin. Because there are two chromophores, two wavelengths in which the extinction coeffi cient of oxy and deoxyhemoglobin differ are required to determine

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Auditory brainstem response morphology and analysis in very preterm neonatal intensive care unit infants

Abstract: A typical bow tie pattern preceding peak III seems to be the earliest characteristic of the developing ABR morphology in preterm infants. As ABR characteristics will improve with increasing age, neonatal hearing screening should be postponed until after 34 weeks.

Cited by 29 publications

References 12 publications

A quiet NICU for improved infants’ health, development and well-being: a systems approach to reducing noise and auditory alarms

A quiet NICU for improved infants’ health, development and well-being: a systems approach to reducing noise and auditory alarms

Impact of Gestational Age on Neonatal Hearing Screening in Vaginally-Born Late-Preterm and Early-Term Infants

Monitoring the Neonate: Basic Science

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