Ear stretching originate from african tribes,ringing in ears 3 weeks,ringing deafness in left ear numbness - Step 3

Author: admin, 04.05.2014
Hearing loss, ringing of the ears and dizziness are common complaints that are usually due to common causes. The most common inner ear tumor is an acoustic neuroma which originates on the hearing and balance nerves.
Until recent years, it was very hard to diagnose these tumors until they became quite large.
I'd like to review some of the anatomy of the inner ear to give a better understanding of these tumors and how they are treated.In order to view the content, you must install the Adobe Flash Player. At the deepest level is the brain from where the hearing, balance and facial nerves originate.
For many years, acoustic neuromas were removed exclusively by neurosurgeons through a standard approach called a suboccipital craniotomy.
Acoustic neuromas have often been diagnosed by ear specialists (otologists) because the first signs of tumor growth are hearing loss, tinnitus and dizziness.
In the late 1950's, otologists began working with neurosurgeons to develop safer ways of removing the neuromas. Therefore, the safest treatment is to remove these tumors by a directly exposing the them by going directly through the inner ear .
If the tumor is found to be very small and lying within the internal auditory canal, a middle cranial fossa surgery can be used in an attempt to preserve the hearing nerve if useful hearing is present preoperatively. Many factors must be considered in deciding which approach is most suitable for a given tumor.
Fortunately, microsurgery and improved approaches have dramatically improved our ability to save the facial nerve in the majority of patients.
Centers around the world that have the highest success rate and the lowest complication usually see a high volume of patients and establish a team ot otologists and neurosurgeons as has been done at the Michigan Ear Institute. Although patients greatest concerns naturally focus on the risks to life, brain and the nerves, modern techniques have made tremendous gains in reducing these complications.
Two of the most common complications of acoustic tumor surgery are leakage of spinal fluid and postoperative infections.
Infections are minimized by using powerful antibiotics the day of surgery as a preventative measure.
Because the tumor always adheres to the facial nerve, facial weakness is a possibility despite all the best attempts particularly with large tumors which squeeze the facial nerve so thin that it may barely be recognizable.
Even some small tumors, however, may be difficult to separate from the facial nerve if, like a weed, they burrow into the nerve rather than just stick to the side of if.
The incision behind the ear is closed with nonabsorbable stitches which are removed in about three weeks.
Avoid hard nose blowing or heavy lifting which could bring about a leakage of spinal fluid. Stuffiness and hearing loss can be expected even in cases where the hearing may have been saved. Although acoustic neuroma is the most common tumor of the inner ear, other similar tumors can be found in this area. On rare occasions, however, a doctor might recommend observing the tumor rather than removing it if a tiny neuroma is found in an elderly, ill patient. Some doctors are currently experimenting to see if different types of radiation therapy such as the so-called gamma knife may be useful for some acoustic tumor patients particularly for the elderly.
Microsurgical technique, lasers and the use of facial nerve monitoring have dramatically improved the safety of removing acoustic tumors. Occasionally, however, these symptoms may be due to a benign tumor that grows between the inner ear and the brain. The mechanical part picks up sound from the outer ear canal and then vibrates the ear drum and three tiny hearing bones in the middle ear. Like a telephone, it takes the vibration and turns it into an electric signal that is relayed to the brain. It helps move the face and also provides for some of the taste fibers to the tip of the tongue. This entailed opening the back of the skull and moving the brain over until the tumor could be seen growing out of the inner ear. Not until late does the tumor begin pressing on the brain to cause headaches, facial paralysis and loss of vision. One of the greatest innovations was to use a microscope to do the delicate work adjacent to the brain and nerves.
Because these tumors always originate adjacent to the inner ear, a surgical approach through the inner ear meant that much less brain manipulation would be required compared to suboccipital surgery. In order to spare the inner ear, this approach requires that the temporal lobe of the brain be lifted. It is now performed using the microscope and the skull opening is made much closer to the ear in order to minimize brain retraction. Although there is often much discussion regarding whether or not any hearing can be saved, of greater importance is minimizing risk to life, brain and the facial nerve.
The operation often takes the better part of a day to complete in order to do so safely underneath the operating microscope.
This may require that a small amount of residual be left behind in order to reduce the risk of facial palsy or stroke.
Therefore, iti??s important to know some of the other less concerning but more common side effects. In some cases, unsteadiness can be prolonged although spinning vertigo tends to subside after the first day or two. Typically this improves a bit after surgery but most patients are advised to expect it to be about the same. Because these tumors grow slowly, surgery is rarely needed urgently but it should be done in a timely fashion because the complications of surgical removal increase as the tumor grows in size. Much research, however, is still required to see how effective it may be and what the short and long term side effects are if high dose radiation is used near the brain for benign rather than malignant tumors. Although it is benign, it can cause serious problems for nerves, brain and life due to its size and location among vital structures. Today, sophisticated scans and computerized tests help find many tumors when they are small and much easier to remove. Unfortunately, these people may have many tumors throughout their body and will often have two inner ear tumors.
The tumor most commonly starts on the balance nerve but all of the nerves become involved as the tumor enlarges. Because tumors were often not diagnosed until they were very large and because the suboccipital approach required a considerable amount of brain retraction before the tumor could even be seen, the risk of death , stroke and a paralyzed face was extremely high. Therefore, many otologists became frustrated that the patients whom they referred often developed serious complications following suboccipital removal of their neuroma. Its advantage is that it is the most direct exposure of the tumor with the least pressure on the brain. Because acoustic neuromas always adhere to the hearing nerve, the success rate for preserving hearing with small tumors is about 50 to 60%. In early years using the suboccipital approach, virtually every patient awoke from surgery with a paralyzed face. Pioneered here at the Michigan Ear Institute, monitoring the facial nerve with a special computer during surgery has allowed a dramatic improvement in preserving facial nerve function. After surgery, the opening must be repaired with nearby muscle or a graft of the patient's own belly fat in order to reduce the chance of spinal fluid leak through the inscision, the ear or the nose because all these areas are inter-connected. The idea is to see if the tumor might grow slowly enough that by the time the patient has died from other causes, surgery will have been avoided. In addition, many technical breakthroughs have made surgery of even the largest tumors much safer.
Today, however, there is virtually no surgeon in the world who removes neuromas without a microscope. Its disadvantage is that, by going directly through the inner ear, any residual hearing is completely lost. Once a tumor starts has grown to about one inch in size, the chance of being able to spare the hearing nerve is very poor even if hearing is good before surgery.
It can be particularly helpful for very large tumors or for small tumors that originate close to the brain rather than the inner ear.
It was just too difficult to peal the sticky tumor without tearing or stretching the facial nerve. The monitoring computer acts like an early warning system to alert the surgeon to pressure or stretching of the nerve.
If there is only a tiny fleck of tumor that remains, it may wither away from lack of a blood supply. Should a leakage occur despite this, additional packing or a spinal fluid drain may be required.
This is treated using eye drops and a tiny gold bar implanted just beneath the eyelid skin. After the first week, you may wash your incision but be gentle, doni??t soak in a tub and avoid picking at crusts. Facial nerve neuromas are similar to acoustic neuromas but because they grow from the facial nerve itself, a facial palsy is almost always expected although repairing the nerve with a graft typically allows a moderate degree of function as the nerve slowly regenerates over about a year. Each has its own pro's and con's that have to be weighed depending on tumor size, tumor location and whether or not there remains any usable hearing in the ear.
Because most patients with acoustic neuromas have little or no usable hearing, this disadvantage is of little concern. Like the middle cranial fossa approach, this technique allows the possibility for hearing preservation in some patients. Many neurosurgeons concluded that a paralyzed face was a reasonable price to pay for removing an acoustic neuroma. In other patients, the remaining amount needs to be removed during a second operation which may not be needed for up to a year following the initial surgery.



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