MAYWOOD, IL – Loyola Medicine's hearing center reached another milestone recently by performing its 500th cochlear implant.


The procedure was performed by John Leonetti, MD, one of four Loyola otolaryngologists who have extensive experience in cochlear implant surgery.

A cochlear implant is used in patients with sensorineural hearing loss, which is caused by a disease or lesion affecting the inner ear or auditory nerve. The device bypasses damaged parts of the auditory system and stimulates the auditory nerve, enabling the patient to receive sound.

"Cochlear implants allow patients to hear much better, which can greatly improve their quality of life," said Sam Marzo, MD, chair of Loyola's department of otolaryngology, who also performs cochlear implants along with Matthew Kircher, MD and Dennis Moore, MD.

Loyola is among the highest-volume centers for cochlear implants in the Midwest and was among the first centers to implant a hybrid system that combines a cochlear implant with a hearing aid. Loyola offers cochlear implants to patients who have normal or near-normal hearing in one ear (single-sided deafness), especially to those with debilitating tinnitus in the impaired ear. (Tinnitus is the perception of noise or ringing in the ear.) Loyola also has been among the first centers in the country to offer other leading-edge hearing technologies.

"Cochlear implants have become standard treatments for patients with various degrees of sensorineural hearing loss who do not receive enough benefit from hearing aids," said audiologist chief Candace R. Blank, AuD. "But there's a common misconception that the devices are intended only for patients with profound hearing loss."



A conventional cochlear implant can benefit a patient who with hearing aids can understand as many as 60 percent of sentences. A hybrid system can be used in patients who with hearing aids can understand as many as 80 percent of words.



There's a strong association between hearing loss and anxiety, depression and dementia. But fewer than six percent of the approximately 1.2 million U.S. residents who are candidates for cochlear implants have the devices. One possible reason is that hearing loss is under-diagnosed. Only about 14 percent of people over age 65 receive a hearing screening during physical exams, and fewer than 12 percent of primary care physicians screen for hearing loss during annual physical exams. Also, adults who are not being sufficiently helped by hearing aids may not be aware there are other options.



Loyola Medicine audiologists excel at the diagnosis and treatment of hearing and balance conditions, and work closely with the patient's primary care doctor and other physicians. Loyola ear surgeons are nationally recognized for their outstanding outcomes in hearing loss surgery.

About Loyola Medicine

Loyola Medicine, a member of Trinity Health, is a nationally ranked academic, quaternary care system based in Chicago's western suburbs. The three-hospital system includes Loyola University Medical Center (LUMC), Gottlieb Memorial HospitalMacNeal Hospital, as well as convenient locations offering primary care, specialty care and immediate care services from nearly 2,000 physicians throughout Cook, Will and DuPage counties. LUMC is a 547-licensed-bed hospital in Maywood that includes the William G. and Mary A. Ryan Center for Heart & Vascular Medicine, the Cardinal Bernardin Cancer Center, the John L. Keeley, MD, Emergency Department, a Level 1 trauma center, Illinois's largest burn center, the Nancy W. Knowles Orthopaedic Institute, a certified comprehensive stroke centertransplant center and a children’s hospital. Having delivered compassionate care for over 50 years, Loyola also trains the next generation of caregivers through its academic affiliation with Loyola University Chicago’s Stritch School of Medicine and Marcella Niehoff School of Nursing.   

For more information, visit loyolamedicine.org. You can also follow Loyola Medicine on LinkedIn, Facebook, Instagram or X (formerly known as Twitter).

About Trinity Health

Trinity Health is one of the largest not-for-profit, faith-based health care systems in the nation. It is a family of 127,000 colleagues and more than 38,300 physicians and clinicians caring for diverse communities across 26 states. Nationally recognized for care and experience, the Trinity Health system includes 93 hospitals, 107 continuing care locations, the second largest PACE program in the country, 142 urgent care locations and many other health and well-being services. In fiscal year 2024, the Livonia, Michigan-based health system invested $1.3 billion in its communities in the form of charity care and other community benefit programs. For more information, visit us at www.trinity-health.org, or follow us on LinkedIn, Facebook, and X (formerly known as Twitter).