american academy of otolaryngology – head & neck surgery annual meeting sep 29 – oct 2, 2013...
TRANSCRIPT
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American Academy of Otolaryngology – Head & Neck SurgeryAnnual Meeting Sep 29 – Oct 2, 2013
Pediatric Ossiculoplasty
Should I or Shouldn’t I?
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Introduction• pediatric CHL– incidence /impact
• specific entities– tympanoplasty– ossiculoplasty
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Pediatric Ossiculoplasty:
• pediatric ossiculoplasty differs from adult:– etiology– growth – importance of audition
• surgical results are variable
• experiential data
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Failures• poor technical
results• hearing
deterioration• complications– disease
recurrence– extrusion
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Top Ten Tips for Ossiculoplasty1. clean/stable middle ear2. intact tympanic
membrane3. autologous>prosthetic4. bank incus functionally5. stapes key to success
6. cartilage grafts7. titanium>others8. cartilage shoe9. trauma does best10. caution with
stapes surgery
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1. Clean and Stable Ear• avoid prosthetic
reconstruction– 1° cholesteatoma
resection– incus*
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Approach to Ossiculoplasty in Children After Cholesteatoma
Clean, Aerated Middle Ear Space
CT scan after 1.5 years
2nd look after 1.5
years
through puberty clean ossiculoplasty
not through puberty
clean and through pubertyossiculoplasty
not clean
surgical revision
clean but not through puberty
wait until puberty
ossiculoplasty
not clean
surgical revision
through puberty
2nd look after 1 year
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2. Intact Tympanic Membrane• best results require
tension– extrusion
• exceptions– distant TM repair– in-line malleus
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2. Intact Tympanic Membrane• best results require
tension– extrusion
• exceptions– distant TM repair– in-line malleus
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3. Autologous > Prosthetic• obvious– cost– incorporation– growth
• downside– can harbour disease– too short
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3. Autologous > Prosthetic• cartilage alone– to stapes
• even without ossicles– sets up for
reconstruction – maintains space
AJ got a graph of Incus interposition vs cartilage
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4. “Functionally” Bank Incus• put it where you’ll
find it– sometimes it works!– can find it with
minimal exposure
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5. Stapes = Success• intact stapes– good hearing result• PORP• myringostapediopexy
malleus
incus s
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6. Cartilage Grafts• tragal or conchal– reduce/eliminate
extrusion– prevent atelectasis?
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7. Titanium > Others• lighter• fitted length• inert• robust• tiny
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Kurz Ossiculoplasty
Table 1: Patient Demographics
Number of Patients 43
Age at time of surgery 13 yrs. (7-17 yrs.)
Etiology of Ossicular Chain Damage
CholesteatomaCongenital Ossicular FusionOther
3733
(86.0%)(7.0%)(7.0%)
Cholesteatoma Type AtticCongenitalTensaImplantation
26821
(70.3%)(21.6%)(5.4%)(2.7%)
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Kurz Ossiculoplasty
Table 2: Ossiculoplasty characteristics
Ossiculoplasty TORPPORP
395
(88.6%)(11.4%)
Number of Operations Prior to Ossiculoplasty None123
52017 1
(11.6%)(46.5%)(39.5%)(2.3%)
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dB HL
6 week
0
10
20
30
40
50
60
12 monthsPost-operative Post-operative Pre-operative
AC PTA
ABG
* *
* p<0.05
Ossiculoplasty Results
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Ossiculoplasty Results
• long term audiometric results
n = 43 n = 7
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8. Cartilage Shoe• stabilizes the
ossicle in position– works with
autologous bone!– designed for
titanium implant
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9. Trauma Does Best• wait for resolution of
transient CHL• explore within 6 months• don’t fear removing and
repositioning incus (see # 5 Stapes = Success)
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10. Careful With the Stapes• fixed footplate– congenital– middle ear
sclerosis
basal turn of cochlea
oval window
vestibule
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10. Careful With the Stapes• fixed footplate– congenital– middle ear
sclerosis
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Conclusions• consider the top ten points
in decisions making about pediatric ossculoplasty
• results are operator dependent– variable– possibly not durable– difficult to predict
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Conclusion
• conductive hearing loss in children– breadth of pediatric otology– rapidly changing field– decision making central to obtaining successful
outcomes
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Conclusions• understand patient’s:– needs– expectations– anatomy– physiology
• each ear is different