Development of a new surgical method to reduce complications in severe hearing loss and maintain the appearance of the ear

Professor Chanil Song, Department of Otolaryngology, Gangnam Severance Hospital, Yonsei University

A single cochlear implant operation was performed for chronic otitis media patients suffering from severe hearing loss, opening a way to improve hearing loss while maintaining the shape of the ears. The operation without removing the ear canal (ear hole) was possible, increasing patient satisfaction and relieving discomfort.

A team led by Professors Chan-il Song and In-seok Moon of the Department of Otolaryngology and Throatology at Yonsei University Gangnam Severance Hospital announced the results of a study demonstrating effective hearing loss improvement in patients with hearing loss due to chronic otitis media with a single operation without external auditory canal obstruction.

In the existing treatment, chronic otitis media and cochlear implant surgery were performed simultaneously when patients with chronic otitis media suffered from severe hearing loss. The problem was that the removal of the ear canal was unavoidable due to the obstruction of the external auditory meatus.

To solve this problem, the research team performed posterior wall-preserving mastectomy and tympanoplasty at the same time without removing the external auditory meatus. The research team recently published the results of comparing the simultaneous operation method with the conventional external auditory canal occlusion method.

As a result, it was found that the simultaneous surgery method had a lower probability of complications such as infection and surgical side effects than the external auditory canal occlusion method.

Among the 31 patients who actually underwent chronic otitis media and cochlear implant surgery from 2009 to 2017, 3 patients (9.7%) had complications, and the complication rate (14.6%) when the external auditory canal was occluded decreased by 5.9%.

In addition, 3 patients had temporary ear infections (pus coming out of the middle ear) after surgery, but they improved after drug treatment.

Professor Song Chan-il said, “In comparison with the existing surgical method, the incidence of complications in patients with chronic otitis media was reported to be about 10% or more, but the complication rate in this study was 9.7%, which was less than 10%. “It is expected that the discomfort of many patients will be alleviated as the operation can be performed at once without increasing risk and the original appearance can be maintained.”

Meanwhile, the results of this study were published in the international academic journal ‘Acta Oto-Laryngologica’ in otolaryngology, 「One-stage cochlear implantation in patients with chronic otitis media using canal wall up.

It was recently published under the title of “mastoidectomy (cochlear implantation performed simultaneously using posterior wall-preserving mastoidectomy in patients with chronic otitis media)”.

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