Asymmetric Sensorineural Hearing Loss

Clinical definition has pointed out that asymmetric sensorineural hearing loss can be an indication that a person may be having a different kind of serious disease.  As what researchers reveal, this asymmetrical sensorineural hearing loss may be caused by a wide range of various diseases.  The very reason why correct diagnosis is necessary to pin point the actual cause of the ailment and effect appropriate treatment to prevent progression of said hearing loss.

Asymmetric Sensorineural Hearing Loss Problem

Professional in this field have discussed and discovered that asymmetrical sensorineural hearing loss can be secondary to the normal process of aging or it can be a simple case of exposure to excessive noise.  However, they have also suspected that this hearing loss can be a lone presenting symptom of vestibular schwannoma or intracranial tumor.  Thus, once a patient has this hearing loss problem, clinical suspicion in the highest degree is adopted to ensure that nothing is missed in its examinations.

Asymmetric Sensorineural Hearing Loss Case Study

Now, here is a case which can briefly discuss asymmetric sensorineural hearing loss which is caused by vestibular schwannoma.  The case was of a 71 years old man who was suffering progression of hearing loss for two years in his left side ear.  Clinical tests proved that the hearing loss was caused by a cerebellopontine angle mass lesion presenting a classic imaging characteristic of vestibular schwannoma.  The characteristics has been reviewed thoroughly and upon presentation, the patient was unable to use a phone using his left ear and did not even hear people talking at his left side.  The patient has negative history of head trauma, of otologic surgery or any occupational noise exposure and denied having experienced tinnitus or vertigo.  Then further examination with MRI revealed an extra axial ice-cream-cone shape mass in the left CPA with other described findings which are found to be the characteristic of a vestibular schwannoma.

As the patient was already at an old age, and taking into account that the tumor was relatively of small size and having an estimate of less than 50 percent chance of hearing preservation on the affected left side, treatment with stereotactic radiosurgery was opted.  In a thorough discussion of the entire case and its treatment, experts say that vestibular schwannomas typically comes from Schwann cells which coat the inferior vestibular nerve that are benign tumors and are common mass lesions found in the CPA.  The patient having diagnosed of VS, imaging then plays a key role in its treatment plan and its follow-ups.

Asymmetric Sensorineural Hearing Loss Treatment

Strategic plans for treatment include watchful waiting, a very reasonable initial step for older patients considering that they make poor surgical candidates, radiotherapy, surgery and other multiple clinical concerns like co-existing condition of the patient, hearing status in both the two ears, and the preference of the patient and the attending physician.  Here, the primary goal in its treatment is to be able to control tumor growth, and the secondary purpose is to minimize symptoms and any complications.

Imaging follow-ups also plays an important role not only prior to treatment but also after treatment.  In some cases, complications occur after treatment.  While it is true that gamma-knife therapy to control the growth of tumor has a success rate of 90%, however, there are still instances where the patient’s disease and severe hearing loss continue to worsen after treatment.  Although in the case of the 71-year-old patient here who was also treated with gamma-knife therapy, there is no showing that the tumor has continued to grow after 3 years of treatment.

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