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【medical-news】内耳容积研究带来更高的外科手术
Main Category: Ear, Nose and Throat News
Article Date: 03 Mar 2007 - 0:00 PST
Children suffering from holes in their eardrums could have better success rates following surgery, thanks to findings from doctors at West Virginia University.
The study was published in the February, 2007 issue of Otolaryngology Head and Neck Surgery, the official journal of the American Academy of Otolaryngology-Head and Neck Surgery Foundation. Conducted by doctors in the Department of Otolaryngology, the study measured success rates of patching eardrum holes based on volume or space measurements in the ear.
Holes result from either injury or prior ear problems, such as ear tubes. Perforated eardrums can predispose the ear to infection or result in hearing loss.
"Until this study, there were no clear guidelines as to when kids should have surgery to patch the holes," Hassan Ramadan, M.D., principal investigator on the study, said. Dr. Ramadan is the vice-chair of the Department of Otolaryngology at WVU and director of the Sinus Center.
He and his co-investigators, Daniel Merenda, M.D.; Kazunari Koike, M.D. and Majid Shafiei have published findings that use a common test involving an audiologist's probe tool, called a tympanometry, to measure the volume of ear space.
The doctors found that having higher tympanogram volumes could result in a nearly 90 percent success rate for patching the perforation.
The typmanometry probe is commonly used by ear specialists and consists of a loudspeaker emitting a low frequency tone, a microphone measuring sound pressure levels in the ear canal and a manometer, that also measures pressure.
Patients whose volume does not meet doctors' measurement specifications should wait to have an ear operation. Dr. Ramadan warns that patching too early can either lead to a fluid build up or not fully close the hole.
"Prior to this research, doctors typically looked at age and the child's history of infections to decide when to patch," Dr. Ramadan said. "Our research proves that testing inner ear volumes allows specialists to be more scientific and accurate in their decisions of whether to operate."
West Virginia University Health Sciences Center
PO Box 9083
Morgantown, WV 26506-9083
United States
http://www.hsc.wvu.edu/
补充背景资料：
1. Inner-ear ：the essential part of the vertebrate organ of hearing and equilibrium that typically is located in the temporal bone, is innervated by the auditory nerve, and includes the vestibule, the semicircular canals, and the cochlea -- called also internal ear.
2. eardrum：tympanic membrane，a thin membrane separating the middle ear from the inner part of the external auditory canal that vibrates in response to sound energy and transmits the resulting mechanical vibrations to the structures of the middle ear -- called also eardrum, tympanum.
3. Hassan Ramadan：Dr. Ramadan is a board certified otolaryngologist who has subspecialty expertise in pediatric otolaryngology, which includes ear, nose, and throat diseases in children as well as expertise in nasal and sinus diseases. He has extensive experience in endoscopic sinus surgery and is the director of the WVU Sinus Center. He holds memberships in several regional, national and international medical societies and has presented talks at many national and international meetings. He has over fifty publications in referred medical journals.
Dr. Ramadan attended medical school at the American University of Beirut. He traveled to the United States in 1986 where he completed postgraduate training at Harvard Medical School in Boston and Lenox Hill Hospital in New York City. In the summer of 1990, Dr. Ramadan joined the Department of Otolaryngology at West Virginia University. He is currently Professor and Vice Chairman in the Department of Otolaryngology and has a joint appointment as Professor in the Department of Pediatrics. He is a fellow of the American Academy of Otolaryngology/Head & Neck Surgery, the American Rhinologic Society, and the American College of Surgeons. Inner-ear Volume Study Leads To Higher Surgery Success Rates
内耳容积研究带来更高的外科手术成功率
Main Category: Ear, Nose and Throat News
主要类别：耳鼻咽喉新闻
Article Date: 03 Mar 2007 - 0:00 PST
文章出版日期：2007年3月3日0：00
Children suffering from holes in their eardrums could have better success rates following surgery, thanks to findings from doctors at West Virginia University.
患有鼓膜穿孔的儿童在下述外科手术中获得更高的成功率，这全得益于西部弗吉尼亚大学医师的研究发现。
The study was published in the February, 2007 issue of Otolaryngology Head and Neck Surgery, the official journal of the American Academy of Otolaryngology-Head and Neck Surgery Foundation.
这项研究结果发表在美国耳鼻咽喉头颈外科基金学会的官方杂志――《耳鼻咽喉头颈外科杂志》2007年2月刊上。
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作者:admin@医学,生命科学 2010-12-10 17:11
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