CONCLUSION: In patients with poorly controlled diabetes mellitus (DM), hearing disturbance was associated with renal dysfunction and diabetic neuropathy, represented by decreases in median nerve compound action potential amplitude. METHODS: The evaluation was conducted using 43 subjects who were hospitalized for the purpose of DM education. The mean age was 58.1 years (range 21-82 years). The mean HbA1c was 9.5%. The mean DM duration was 11.0 years. Renal function, retina condition, and nerve conduction were evaluated in relation to DM complications (nephropathy, retinopathy, and neuropathy). Nerve conduction studies were used to obtain detailed information on the condition of the peripheral nerves. After otological inspection, pure-tone audiometry, auditory steady-state response (ASSR), and distortion-product otoacoustic emissions (DPOAEs) were measured. Stepwise multiple linear regression was used to analyze the results in the better ear and worse ear. RESULTS: Decreases in median nerve compound action potential amplitude were associated with deterioration in pure-tone audiometry and ASSR. Diabetic neuropathy, creatinine clearance, diabetic nephropathy, and retinopathy were related to hearing in ASSR and/or DPOAEs.
CONCLUSION: In patients with poorly controlled diabetes mellitus (DM), hearing disturbance was associated with renal dysfunction and diabetic neuropathy, represented by decreases in median nerve compound action potential amplitude. METHODS: The evaluation was conducted using 43 subjects who were hospitalized for the purpose of DM education. The mean age was 58.1 years (range 21-82 years). The mean HbA1c was 9.5%. The mean DM duration was 11.0 years. Renal function, retina condition, and nerve conduction were evaluated in relation to DM complications (nephropathy, retinopathy, and neuropathy). Nerve conduction studies were used to obtain detailed information on the condition of the peripheral nerves. After otological inspection, pure-tone audiometry, auditory steady-state response (ASSR), and distortion-product otoacoustic emissions (DPOAEs) were measured. Stepwise multiple linear regression was used to analyze the results in the better ear and worse ear. RESULTS: Decreases in median nerve compound action potential amplitude were associated with deterioration in pure-tone audiometry and ASSR. Diabetic neuropathy, creatinine clearance, diabetic nephropathy, and retinopathy were related to hearing in ASSR and/or DPOAEs.
Authors: João Soares Felício; Lilian de Souza d'Albuquerque Silva; Carlliane Lima E Lins Pinto Martins; João Felício Abrahão Neto; Manuela Nascimento de Lemos; Fabrício de Souza Resende; Wanderson Maia da Silva; Angélica Leite de Alcântara; Maria Clara Neres Iunes de Oliveira; Norberto Jorge Kzan de Souza Neto; Isabela Imbelloni Farias de Franco; Nathalie Abdallah Zahalan; Luísa Correa Janaú; Ana Carolina Contente Braga de Souza; Flavia Marques Santos; Natércia Neves Marques de Queiroz; Neyla Arroyo Lara Mourão; Márcia Costa Dos Santos; Karem Miléo Felício; Franciane Trindade Cunha de Melo Journal: Diabetol Metab Syndr Date: 2018-11-09 Impact factor: 3.320