Biosketch / Results /
Susan WaltzmanMarica F. Vilcek Professor of Otolaryngology, Department of Otolaryngology-Head and Neck Surgery
Co Dir NYU Cochlear Implant Center
660 First Avenue
New York, NY 10016
Research SummaryNoel Cohen M.D. and Susan Waltzman Ph.D.'s investigations have focused on improving auditory function in the hearing impaired. The primary goal of a cochlear implant is to provide profoundly hearing impaired children and adults with sound and speech recognition not available to them with conventional hearing aids. The basic design of a cochlear implant system consists of an externally worn microphone, signal processor and transcutaneous transmitter and an implanted receiver stimulator and electrode array. The stimulation of the electrode array is dependent upon the strategy used to convert the incoming sound into electrical impulses.
The investigators have focused on two main areas: comparisons of implant systems and variables affecting postoperative performance of children and adults. Recent work has demonstrated that congenitally and prelingually deafened children obtain significant perceptual and linguistic benefit from implantation and that these benefits are further enhanced if implantation occurs between 2 and 3 years of age. Recently completed trials have included a prospective randomized study of several cochlear implant systems. Results revealed a superiority of multichannel systems over single channel devices and a significant difference between the two available multichannel implants in terms of word and sentence recognition.
Currently, they are involved in several clinical trials: the efficacy and safety of a new multichannel prosthesis and the benefits of an upgraded processor of an existing multichannel implant. Many technological advances in both electrode design and processing strategy are planned for the near future and they intend to continue our research with the new devices.
J. Thomas Roland, M.D.'s research interests have focused on ototoxicity of drugs and substances, medical therapy for Ménière's disease, and acoustic neuroma treatment.
Research InterestsImproving Auditory Function
Neurocognitive testing and cochlear implantation: insights into performance in older adults
Cosetti, Maura K; Pinkston, James B; Flores, Jose M; Friedmann, David R; Jones, Callie B; Roland, J Thomas Jr; Waltzman, Susan B. Neurocognitive testing and cochlear implantation: insights into performance in older adults. Clinical interventions in aging. 2016 ;11:603-613 (2136232)
Single-sided Deafness Cochlear Implantation: Candidacy, Evaluation, and Outcomes in Children and Adults
Friedmann, David R; Ahmed, Omar H; McMenomey, Sean O; Shapiro, William H; Waltzman, Susan B; Roland, J Thomas Jr. Single-sided Deafness Cochlear Implantation: Candidacy, Evaluation, and Outcomes in Children and Adults. Otology & neurotology. 2016 Feb ;37(2):e154-e160 (1911352)
Surgical techniques and outcomes of cochlear implantation in patients with radiographic findings consistent with X-linked deafness
Cosetti, Maura K; Friedmann, David R; Heman-Ackah, Selena E; Perez, Ronen; Waltzman, Susan B; Roland, J Thomas Jr. Surgical techniques and outcomes of cochlear implantation in patients with radiographic findings consistent with X-linked deafness. International journal of pediatric otorhinolaryngology. 2015 Jul 28;79(10):1689-1693 (1709262)
Sequential bilateral cochlear implantation in the adolescent population
Friedmann, David R; Green, Janet; Fang, Yixin; Ensor, Kelsey; Roland, J Thomas; Waltzman, Susan B. Sequential bilateral cochlear implantation in the adolescent population. Laryngoscope. 2015 May 6;125(8):1952-1958 (1569452)
Effects of loss of residual hearing on speech performance with the CI422 and the hybrid-L electrode
Friedmann, David R; Peng, Robert; Fang, Yixin; McMenomey, Sean O; Roland, J Thomas; Waltzman, Susan B. Effects of loss of residual hearing on speech performance with the CI422 and the hybrid-L electrode. Cochlear implants international. 2015 Apr 26;16(5):277-284 (1556842)