newborn hearing screening

Newborn hearing screening is one of the newborn screening programs prescribed by the Ministry of Health. Early screening can enable early detection of hearing-impaired infants, timely diagnosis, early treatment, and promotion of infant language development during critical periods of language learning. . Early detection and intervention programs for newborns and infants, including hearing screening, diagnosis, intervention, follow-up, rehabilitation training and effect evaluation, are a systematic and social eugenic project that requires strict quality control. Basic Information Specialist classification: growth and development check classification: physical examination Applicable gender: whether men and women apply fasting: not fasting Tips: Poor rest, improper diet, excessive fatigue. Normal value Hearing is normal and his response to sound is normal. Clinical significance Abnormal result 1. Hearing impairment; 2. Symptoms or signs of sensorineural and/or conductive hearing loss related syndrome; 3. Family history of permanent sensorineural hearing loss in childhood; 4. Craniofacial malformation, Including auricle and external auditory canal abnormalities; 5, pregnant mother intrauterine infection, such as: cytomegalovirus, herpes, venom protozoa; 6, neonatal hyperbilirubinemia. Newborns in the population that need to be examined. Precautions Taboo before the examination: poor rest, improper diet, excessive fatigue. Requirements for inspection: Actively cooperate with the doctor's work. Inspection process 1. Auditory evoked potential (ABR). The ABR evaluates the auditory function by recording the electrical signals generated by the person receiving the auditory stimulus and the potential waves of different neurons on the auditory pathway obtained through a series of circuit amplification and recognition techniques. The characteristics and reproducibility of the ABR are completely independent of the subject's condition and can be obtained while the subject is awake, sleep, anesthesia. Because of this reproducibility, consistency between populations and sensitivity to those of the auditory pathway, ABR is an important tool for clinical assessment and intraoperative monitoring. It has been widely used in hearing screening and objective hearing assessment for newborns and infants. 2. Otoacoustic emission (OAE). Otoacoustic emission is a kind of sound energy generated in the cochlea, which is released into the external auditory canal through the conduction of the tympanic membrane of the bone chain and can be detected in the external auditory canal. Otoacoustic emission is a new concept of hearing detection technology. It also has the advantages of being fast, objective, accurate and non-invasive. Ideal for hearing screening and assessment of newborns and infants. When using OAE for screening, pay attention to the following conditions: whether the earplug is fully inserted into the external auditory canal; whether the wire is connected; whether the ear canal is defective; whether the middle ear is damaged; whether the baby is hyperactive or not, to reduce the false positive rate. 3. Acoustic impedance (tympanometry): The acoustic impedance test is the measurement of the acoustic impedance during the change of pressure in the external auditory canal. Through the measurement of changes in the acoustic energy transfer process of the tympanic membrane and middle ear system, understanding the functional status of the middle ear and the characteristics of the transmission hearing impairment are the most effective and accurate means to understand the state of the middle ear function in all hearing detection techniques. It also has four advantages: fast, objective, non-invasive and accurate. When using acoustic impedance for inspection, pay attention to the following conditions: whether the earplug is fully inserted into the external auditory canal; whether the wire is connected or not; whether the ear canal is defective; whether the baby is hyperactive or not, to reduce the false positive rate. Not suitable for the crowd Inappropriate crowd: None.