Answers:
Postoperative surgical risks for cochlear implants include all of the following except...
A) Extrusion of implant
B) Meningitis
C) Perilymphatic gusher
D) Damage to CNVII
E) Vertigo
F) All of the above
Perilymphatic gusher is an intraoperative complication and usually occurs in the presence of Mondini malformation (cochlear malformation resulting in 2 or less turns. Other intraop complications include partial insertion of electrode, insertion trauma (through basilar membrane or fx of osseous spiral lamina).
What imaging modality is contraindicated in patients with cochlear implants.
MRI is contraindicated due to concerns over implant movement. However this is changing. Several companies have approved CIs in 0.2 teslas machines and a nonmagnetic version of CIs are available if pt is expected to require repeat MRI imaging for a CNS disease.
MC Questions:
What is the definition of "Hearing Threshold"?
A) Minimum frequency that is detectable 100% of the time
B) Minimum intensity that is detectable 100% of the time
C) Minimum frequency that is detectable 50% of the time
D) Minimum intensity that is detectable 50% of the time
E) Minimum frequency that is detectable on exam
F) Minimum intensity that is detectable on exam
A) Extrusion of implant
B) Meningitis
C) Perilymphatic gusher
D) Damage to CNVII
E) Vertigo
F) All of the above
Perilymphatic gusher is an intraoperative complication and usually occurs in the presence of Mondini malformation (cochlear malformation resulting in 2 or less turns. Other intraop complications include partial insertion of electrode, insertion trauma (through basilar membrane or fx of osseous spiral lamina).
What imaging modality is contraindicated in patients with cochlear implants.
MRI is contraindicated due to concerns over implant movement. However this is changing. Several companies have approved CIs in 0.2 teslas machines and a nonmagnetic version of CIs are available if pt is expected to require repeat MRI imaging for a CNS disease.
MC Questions:
What is the definition of "Hearing Threshold"?
A) Minimum frequency that is detectable 100% of the time
B) Minimum intensity that is detectable 100% of the time
C) Minimum frequency that is detectable 50% of the time
D) Minimum intensity that is detectable 50% of the time
E) Minimum frequency that is detectable on exam
F) Minimum intensity that is detectable on exam
Free Response Question:
What is "Masking" and why is it used?
Quick Facts:
Categories of hearing loss:
0-25 = normal
25-50 = mild HL; difficulty w/ soft soft/distant sound
50-70 = mod HL; diff w/ normal conversation level, need visual cues
70-90 = severe HL; misses all speech sound, can hear environmental sound
90+= profound HL; hears only airplanes/jackhammers etc.
0-25 = normal
25-50 = mild HL; difficulty w/ soft soft/distant sound
50-70 = mod HL; diff w/ normal conversation level, need visual cues
70-90 = severe HL; misses all speech sound, can hear environmental sound
90+= profound HL; hears only airplanes/jackhammers etc.
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