Endoscopic Ear Surgery
Endoscopic Ear Surgery
Ear Surgery is routinely performed using an Operating Microscope.All routine ear surgeries like
Myringoplasty, Tympanoplasty, Mastoidectomy, Myringotomy with tube placement
etc have been traditionally performed using an Operating Microscope(OM).
Ear Surgery - The reason for the use of
a Microscope
Middle ear structures are very small and
difficult to visualize with the naked eye. That is why a microscope is required
so that a magnified view of the operated object can be obtained. This helps in
the accuracy of the surgery and also prevents complications. The advantages of
an Operating Microscope
- View is magnified with good lighting and vision
- The operators’ hands are free - both the hands are free to perform the surgery.
The problems with an OM (Operating
Microscope) are :-
- The microscope can see only in a straight line- along the sight of vision. In this situation some important structures/ disease elements remain hidden from view.
- Because of the fixed focal length of the microscope it has to be placed at that distance - it cannot be brought closer to the object.
There has been a recent innovation in
middle ear surgeries where we have started using a rigid telescope - an
endoscope- to perform these surgeries. The advantage of an Endoscopic ear surgery is that since we can use angled endoscopes, and take them close to the
operating site we can see hidden areas. The disadvantage of an Endoscopic ear
surgery is that it is usually a single hand procedure - since one hand is used
to hold the endoscope. There has been a recent innovation in this - some
surgeons have started using endoscope holders to free up both their hands. In the
final analysis - each have their advantages and disadvantages- it depends upon
the surgeon's training and experience as well as availability of equipment. The
final outcome would probably be a hybrid approach where each method is used to
derive the most benefit during an ear surgery.
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