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ShapeLength (mm) base Cochle- ostomy Round window Nucleus Straight 22+10 (K) Contour Advance Slim straight (422) Split array SPSSSPSS 17 18 20-25.

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Presentation on theme: "ShapeLength (mm) base Cochle- ostomy Round window Nucleus Straight 22+10 (K) Contour Advance Slim straight (422) Split array SPSSSPSS 17 18 20-25."— Presentation transcript:

1 ShapeLength (mm) base Cochle- ostomy Round window Nucleus Straight (K) Contour Advance Slim straight (422) Split array SPSSSPSS (x2) x2 ext + MedEl Standard / FlexSoft Flex series FORM series Compressed SSSSSSSS Advanced Bionics 1J Helix Mid-scala PPPPPP ext +

2 Electrode Selection Options Pre-curved Banded Short Long Double or split Indications general use, atraumatic incomplete partition hearing preservation apical stimulation ossified cochleae

3 Normal cochlea “full” length peri-modiolar apical Electrode Selection

4 Labyrinthitis ossificans partial insertion compressed array double array

5 Electrode Selection Abnormal cochlea (incomplete partition) not pre-curved banded electrodes

6 Electrode Selection Hearing preservation Thin, flexible “atraumatic” electrodes Short or long Mid-scala

7 Electrode Selection Increasing choice Different manufacturers Which gives best speech discrimination? Which is best for hearing preservation? Which is easier / safer to re-implant?


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