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Implantable hearing aid: A new otologic frontier
Otolaryngology Head and Neck Surgery Volume 112 Number 5
instruction Courses-- Wednesday
the use of the palpebral spring, silicone polymer prosthesis, canthoplasties, bandage lenses, Lacriserts, and combinations of topical agents.
COURSE 4732- I One-period course ($20)
Room NOCC-95 3:45-4:45
Implantable Hearing Aid: A New Otologic Frontier NAOAKI YANAGIHARA, MD Ehime, Japan
Educational objectives: To understand the state-of-the-art of implantable hearing aid, especially the device using a piezoelectric ossicular driver, and to understand future prospect of totally and partially implantable hearing aid. The function of a conventional heating aid depends on the acoustic input and acoustic output system. The system in itself involves such defects as sound distortion, acoustic feedback, wearing discomfort and cosmetic appearance. This is why only a small percentage of candidates for a hearing aid become hearing aid users. Development of an implantable hearing aid functioning as a part of an ear would be desirable. Recent technologic advances have rekindled interest in research on implantable heating aids. Basically, there are two principles used in the construction of implantable hearing aids: (1) piezoelectric and (2) electromagnetic. The devices can be implanted totally or partially. This course is designed to describe designs and indications, and discuss the advantage and disadvantages of implantable hearing aids. Emphasis is placed on the partially implantable one using a piezoelectric ceramic ossicular vibrator. The implant operation with its results is demonstrated by video. Future goals and horizons of the research and development of this technology will be considered.
P 191
brane reconstruction; (2) the use of cartilage for the reconstruction of atelectatic ears or recurrent perforations; (3) the posterior canal wall down procedure used in cholesteatoma surgery, including concomitant cartilage reconstruction of the posterior wall in sufficiently aerated ears; (4) the use of bioactive ionomer cement materials for ossicular reconstruction; and (5) the reconstruction of the ossicular chain during the first session of surgery. These principles and techniques can be applied to every middle ear pathology and result in good control of the disease process as well as excellent hearing results. The didactic session will also include a videotape resentation, the latter of which can be obtained by request.
COURSE 4734-1 One-period course ($20)
Room NOCC-97 3:45-4:45
Congenital Malformations of the Temporal Bone ANTONIO DELACRUZ, MD Los Angeles, Calif.
This course presents the developmental anatomy of the temporal bone as it relates to everyday otologic problems. Subjects to be emphasized are congenital stapes fixation/ malformation, facial nerve anomalies, malleus fixation, incus deformities, persistent stapedial artery, aberrant carotid artery, congenital aural atresia, and Mondini's and other cochlear malformations. It will highlight with slides and videotapes the management of the unanticipated encounter of the above malformations in the course of routine stapes or tympanomastoid surgery.
COURSE 4735-1 One-period course ($20)
Room NOCC-98 3:45-4:45
Stapedectomy with the Robinson Cup-Piston Prosthesis COURSE 4733- I One-period course ($20)
Room NOCC-96 3:45-4:45
MENDELLROBINSON,MD Providence, R.I.
Middle Ear Reconstructive Surgery DIRK HOEHMANN, MD, PhD,JOHN L. DORNHOFFER,MD, and JAN HELMS, MD W•rzburg, Germany, and Little Rock, Ark.
Educational objectives: To make a rational decision about which kind of middle ear pathology deserves the most straightforward approach for reconstructive attempts and to understand the principles of middle ear reconstructive surgery developed as a synthesis in the Departments of Otolaryngology at the University of Tiibingen and Wiirzburg. This course will present the principles of middle ear reconstructive surgery. These principles represent a synthesis of the techniques in middle ear surgery that have been developed at the Departments of Otolaryngology at the Universities of Ttibingen and Wtirzburg. Basic principles include (1) the use of perichondrium for tympanic mem-
Educational objectives: To understand the evolution and principles of the cup-piston stapes prosthesis and with videotape, join the surgeon and observe a complete stapedectomy procedure (narrated during the surgery). This course analyzes more than 30 years of use of the Robinson stainless steel stapes cup-piston prosthesis in stapedectomy surgery for otosclerosis. More than 200,000 stapedectomies have been performed with this technique since 1961. A rationale for the design and use of the prosthesis will be discussed, and the surgical technique will be demonstrated by color slides and a videotape. Definitive principles of stapedial footplate surgery will be included. The short-term and long-term hearing results and complications and comparison with other techniques will be presented. For the "occasional" otologic surgeon this technique has been recognized as being most suitable for providing
instruction Courses-- Wednesday
the use of the palpebral spring, silicone polymer prosthesis, canthoplasties, bandage lenses, Lacriserts, and combinations of topical agents.
COURSE 4732- I One-period course ($20)
Room NOCC-95 3:45-4:45
Implantable Hearing Aid: A New Otologic Frontier NAOAKI YANAGIHARA, MD Ehime, Japan
Educational objectives: To understand the state-of-the-art of implantable hearing aid, especially the device using a piezoelectric ossicular driver, and to understand future prospect of totally and partially implantable hearing aid. The function of a conventional heating aid depends on the acoustic input and acoustic output system. The system in itself involves such defects as sound distortion, acoustic feedback, wearing discomfort and cosmetic appearance. This is why only a small percentage of candidates for a hearing aid become hearing aid users. Development of an implantable hearing aid functioning as a part of an ear would be desirable. Recent technologic advances have rekindled interest in research on implantable heating aids. Basically, there are two principles used in the construction of implantable hearing aids: (1) piezoelectric and (2) electromagnetic. The devices can be implanted totally or partially. This course is designed to describe designs and indications, and discuss the advantage and disadvantages of implantable hearing aids. Emphasis is placed on the partially implantable one using a piezoelectric ceramic ossicular vibrator. The implant operation with its results is demonstrated by video. Future goals and horizons of the research and development of this technology will be considered.
P 191
brane reconstruction; (2) the use of cartilage for the reconstruction of atelectatic ears or recurrent perforations; (3) the posterior canal wall down procedure used in cholesteatoma surgery, including concomitant cartilage reconstruction of the posterior wall in sufficiently aerated ears; (4) the use of bioactive ionomer cement materials for ossicular reconstruction; and (5) the reconstruction of the ossicular chain during the first session of surgery. These principles and techniques can be applied to every middle ear pathology and result in good control of the disease process as well as excellent hearing results. The didactic session will also include a videotape resentation, the latter of which can be obtained by request.
COURSE 4734-1 One-period course ($20)
Room NOCC-97 3:45-4:45
Congenital Malformations of the Temporal Bone ANTONIO DELACRUZ, MD Los Angeles, Calif.
This course presents the developmental anatomy of the temporal bone as it relates to everyday otologic problems. Subjects to be emphasized are congenital stapes fixation/ malformation, facial nerve anomalies, malleus fixation, incus deformities, persistent stapedial artery, aberrant carotid artery, congenital aural atresia, and Mondini's and other cochlear malformations. It will highlight with slides and videotapes the management of the unanticipated encounter of the above malformations in the course of routine stapes or tympanomastoid surgery.
COURSE 4735-1 One-period course ($20)
Room NOCC-98 3:45-4:45
Stapedectomy with the Robinson Cup-Piston Prosthesis COURSE 4733- I One-period course ($20)
Room NOCC-96 3:45-4:45
MENDELLROBINSON,MD Providence, R.I.
Middle Ear Reconstructive Surgery DIRK HOEHMANN, MD, PhD,JOHN L. DORNHOFFER,MD, and JAN HELMS, MD W•rzburg, Germany, and Little Rock, Ark.
Educational objectives: To make a rational decision about which kind of middle ear pathology deserves the most straightforward approach for reconstructive attempts and to understand the principles of middle ear reconstructive surgery developed as a synthesis in the Departments of Otolaryngology at the University of Tiibingen and Wiirzburg. This course will present the principles of middle ear reconstructive surgery. These principles represent a synthesis of the techniques in middle ear surgery that have been developed at the Departments of Otolaryngology at the Universities of Ttibingen and Wtirzburg. Basic principles include (1) the use of perichondrium for tympanic mem-
Educational objectives: To understand the evolution and principles of the cup-piston stapes prosthesis and with videotape, join the surgeon and observe a complete stapedectomy procedure (narrated during the surgery). This course analyzes more than 30 years of use of the Robinson stainless steel stapes cup-piston prosthesis in stapedectomy surgery for otosclerosis. More than 200,000 stapedectomies have been performed with this technique since 1961. A rationale for the design and use of the prosthesis will be discussed, and the surgical technique will be demonstrated by color slides and a videotape. Definitive principles of stapedial footplate surgery will be included. The short-term and long-term hearing results and complications and comparison with other techniques will be presented. For the "occasional" otologic surgeon this technique has been recognized as being most suitable for providing