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Deafness clinical trials

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NCT ID: NCT00589407 Terminated - Neck Pain Clinical Trials

Unilateral Blindness/ Unilateral Deafness-relation to Neck Pain

Start date: n/a
Phase: N/A
Study type: Observational

Neck pain is a common complaint in the general population affecting 10-15% of the general population. females more than men. Known risk factors are: Trauma, Repetitive lifting of heavy objects at work, driving vibrating vehicles, frequents diving from boards and smoking. No study dealt with the possible role of unilateral loss of vision or hearing as a risk factor for the development of neck pain. Intuitively, one might suspect that unilateral blindness or deafness will lead to a tilted position of the head, in order to cover a better visual/audio field. This position, in time, might lead to the development of neck pain. Our hypothesis is that patients with unilateral blindness/deafness will suffer from neck pain more frequently than the general population.

NCT ID: NCT00001606 Terminated - Clinical trials for Partial Hearing Loss

Genetic Analysis of Human Hereditary Hearing Impairment

Start date: September 8, 1997
Phase:
Study type: Observational

This studied is designed to discover the genes that cause hearing impairment. More precisely, this study aims to map and clone genes that are important for the development and maintenance of the anatomy and physiology related to hearing (auditory system). The study will begin by finding large families who have members with hearing impairment. Once families are found, members with and without hearing impairment will be evaluated by an audiologist and a clinician (doctor). An audiologist, is a person trained in evaluating, habilitating, and rehabilitating people with disorders of hearing function. The clinician's responsibility is to examine the patients and check for other signs and symptoms related to hearing. Finding the gene for hearing impairment requires: 1. <TAB>DNA samples of hearing impaired family members, taken from standard blood samples. 2. <TAB>DNA samples of members of the family without hearing impairment, taken from standard blood samples. 3. <TAB>Results of hearing tests conducted by the audiologist for all participants. Once all members of the family are evaluated researchers can create a pedigree. A pedigree is like a family tree that charts members of a family with a genetic disorder, like hearing impairment. Pedigrees are used to determine the mode of inheritance of the gene responsible for a particular condition. Finally, researcher intend on using all the information gathered as well as methods for genetic analysis to map out the location of the gene. Patients participating in this study will not directly benefit from its research, but scientific understanding achieved may help researchers better understand the auditory system and someday prevent deafness.<TAB>...