Sudden hearing loss and migraine headache,treatment of low frequency hearing loss herbalife,waking up with inner ear pain youtube - New On 2016

Author: admin, 18.05.2014. Category: Severe Tinnitus Symptoms

Mastoidectomy Types of Mastoidectomy There are two major types of mastoidectomy: canal wall down (CWD) and canal wall up (CWU). Also included in a CWD mastoidectomy is widening the opening of the outer ear canal (a procedure known as meatoplasty).
This is called exteriorizing ear disease, and it makes ear diseases such as cholesteatoma safer by allowing an easy passage of disease out of the body. This makes subsequent invasion into deeper structures of the ear and skull much less likely. With a radical mastoidectomy, a CWD mastoidectomy is performed and the eardrum and middle ear bones are removed permanently.
These disadvantages include: the need for frequent ear canal cleaning, water restrictions and possible hearing changes. The mastoid bowl or cavity created by a canal wall down mastoidectomy will often fill with earwax.
The earwax must be removed periodically (approximately every 6 months) in order to prevent infection. At times, even the earplug is not sufficient to prevent water from entering the mastoid cavity.


Therefore, hearing may be diminished to some degree as a result in this change of architecture. CWU surgery does not remove the bone of the ear canal or create a cavity that is exposed to outside air, as is done for CWD mastoidectomy. Rather, the mastoid disease along with trabeculated bone is removed and tissues are closed back to their normal positions.
This eliminates the need for mastoid bowl cleaning, and people usually return to normal activities.
Residual or recurrent ear cholesteatoma after canal wall up mastoidectomy may be hidden from ear canal inspection in the office by the wall of the ear canal. For this reason, it is common to perform a second look surgery several months (typically 9 – 12 months) after the first surgery.
The second look operation is performed to determine if there is residual or recurrent cholesteatoma that otherwise would go undetected by examination in the office and even by X-ray (CT).
The reason for waiting several months after the first surgery is that, if residual or recurrent cholesteatoma is present, the cholesteatoma will often grow to a sufficient size that the cholesteatoma can be visualized surgically by 9 – 12 months. Operating too soon may mean that cholesteatoma will not have enough time to develop into a large enough size to be detectable.


Waiting too long, however, increases the chance that a residual or recurrent cholesteatoma will damage the ear. At the same time, the middle ear bones can be rebuilt, if it is felt that hearing could be improved. There is still a chance that chance that cholesteatoma can redevelop even if no cholesteatoma is found at the second look operation. For this reason, patients must still be followed for several years in the office to look for recurrent cholesteatoma.
A canal wall down mastoidectomy has a lower chance of recurrent cholesteatoma than a canal wall up mastoidectomy.



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