Roles
The pediatric audiologist serves as:
What is a Diagnostician, Counselor, Audiologic care coordinator/case manager
causes of early hearing loss
Genetics, infections during pregnancy, environmental causes, complications after birth, CMV, 1 in 4 children with HL is born with a birth weight less than 2,500 grams
Name the 3 layers that develop after gastrulation of the blastula?
Ectoderm, mesoderm, endoderm
List the factors associated with increased risk of OM
Age, gender, immune status, other diseases and conditions, familial clustering, feeding practices, childcare settings, passive smoking, season
Usually normal hearing, although conductive hearing loss secondary to chronic otitis media with resulting intermittent CHL is common; stenotic ear canals may often cause cerumen impaction and temporary CHL
Down's Syndrome (Trisomy 21)
True or false: the Prevalence of hearing loss in children 3-17 years old is 5 per 1000?
TRUE
1.4 per 1000 with at least moderate bilateral HL
Genetic Hearing loss is the cause of what percentage of early childhood hearing loss?
80%
The cochlea is fully extended to 2.5 turns at what week? Of development/gestation?
Week 8
The most common form of Inner Ear malformation associated with SNHL is?
Enlarged Vestibular Aqueduct syndrome
This Autosomal Dominant syndrome has the major features of CHL, SNHL, ossicular anomalies, cochlear anomalies, vestibular anomalies, brachial clefts, pre-auricular pits, malformed auricles, lacrimal duct stenosis, renal anomalies.
BOR (brachio-oto-renal) syndrome
Clinical thoughts #1
Think and Act fasrer than with adults
The most common form of non-syndromic hearing loss
The external auditory canal is formed from what dermal layer?
Ectoderm
The leading cause of Unilateral hearing loss in children is?
CMV
CHL of varying degree ranging from mild to maximum depending on microtia; fixation of the footplate of the stapes is common; there is occasionally a SNHL
Treacher Collins Syndrome
Clinical Thoughts #2: you don't want to start with these
What is, if they don’t want their ears touching; don’t start with otoscopy of tympanometry; try VRA and see what they will do for you. Then try otoscopy, tympanometry and/or DPOAEs after (all ear touching)
Examples of Human disorders due to a single pair of recessive genes includes...
Hillocks 1,2,and 3 come from ...
Hillocks 4,5, and 6 come from...
phayrngeal arch 1
phayrngeal arch 2
Examples of causes of Acquired early hearing loss includes:
Herpes, CMV, teratogens, meningitis
Usher Syndrome: experience profound deafness in both ears and severe balance problems at birth. Problems with vision typically begin in early childhood. Type I, II, or III?
Type I
clinical thoughts: What should you start with?
What is with children, begin with obtaining an SRT using the pediatric spondee words; or pointing to body parts
Autosomal Dominant syndromes (5)
Autosomal Recessive syndromes (4)
AD: Waardenburg syndrome, Branchio-oto-renal (BOR) syndrome, Neurofibromatosis Type II (NFII), Stickler syndrome, Treacher-Collins syndrome (FLK- funny looking kid)
AR: Usher syndrome, Alport syndrome, Jervell and Lange-Nielson syndrome, Pendred syndrome
When is the human auditory pathway anatomically formed and how early can an Automated ABR be performed?
26 weeks; 28 weeks
Examples of Aminoglycosides that can cause hearing loss in NICU infants are?
Gentamycin
Major Features: Goiter with SNHL
Hearing: Moderate to profound SNHL, more severe in the HF's with Mondini cochlear anomaly; decreased vestibular function
Pendred Syndrome