Otosclerosis :: Research Hearing Essays

Otosclerosis Hearing serves a very important function in our lives. Much of the time, it is taken for granted. We tend not to appreciate it, until it starts to fail. There are many disorders that can cause a difficulty in hearing and hearing loss. One such disorder is otosclerosis. This disorder deserves a significant amount of research. Not only because we are dependent on our sense of hearing, but because its effects are far reaching. So much so, that it is hard to comprehend how we could ever live without it. It has even been said that Beethoven had otosclerosis. Toward the end of his career, he could not even hear his own music (Goldstein, 1999). Its effects are devastating and are well worth studying. Otosclerosis is a middle-ear disorder. The hearing loss is usually conductive, affecting the bones in the middle ear that conduct sound to the inner ear. This conductive hearing loss is caused by the growth of a spongy bone-like tissue that prevents the ossicles (bones of the middle ear) from moving well. One of the first signs is a small growth of the tissue in the middle ear. This is often in front of the oval window, which separates the middle ear from the inner ear. This can begin in early childhood or adolescence. The tissue may grow rapidly and become hard. The bone tissue grows over the stapes ossicle attaching it to the oval window. At first, hearing loss occurs in the low frequencies. High frequencies are affected next, followed by the loss of hearing in the middle frequencies. Otosclerosis usually begins in one ear, but the other ear often develops it as well (Otosclerosis, 1998). There are different categories of otosclerosis. "Subclinical Otosclerosis" occurs when the tissue does not interfere with the ossicles. A person may have this form for many years and not know it. Another category is "Clinical Otosclerosis." This type can be present in the teen years, but not detected until the young adult years. It is rare for it to occur after the age of fifty. The last category of"Histologic Otosclerosis" occurs when the tissue is present, but it may or may not cause hearing loss. "Cochlear Otosclerosis" has been used to refer to sensorineural hearing loss. This is caused by abnormal blood flow to the middle ear, rather than growth of tissue (Otosclerosis, 1998). Otosclerosis is the most frequent cause of middle ear hearing loss.