Section: 
Otiology
OtiologyAge-related features of dynamic parameters of acoustic reflex and cochlea in premature infants in the first year of life
I. V. Rakhmanova (1), A. G. Matroskin (2), M. M. Polunin (3), A. I. Petukhova (4), D. D. Shirabaikina (5)
(1), (3), (4) Pirogov Russian National Research Medical University (Pirogov University) , Moscow, 117997, Russian Federation, (1), (2) Morozov Children’s City Clinical Hospital, Moscow, 119049, Russian Federation, (5) Bauman Moscow State Technical University, Moscow, 105005, Russian Federation
UDK: 616.28-053.32:612.858.8
DOI: https://doi.org/10.18692/1810-4800-2026-4-99-105
ABSTRACT
Abstract. To identify the influence of the stapedius muscle acoustic reflex on the cochlear response amplitude and their mean values (response power) in premature infants. Patients and methods. A total of 355 data sets from 99 infants, divided into 4 gestational age groups, were analyzed. The studies were conducted at 3, 6, 9, and 12 months and included high-frequency impedance measurements, including acoustic reflexometry, and the recording of otoacoustic emissions at the frequency of the distortion product. Results. A moderate correlation was found between the reflex amplitude and the power of the cochlea response in full-term infants (37-40 weeks), primarily at frequencies of 1000 and 2000 Hz, as well as a moderate relationship in the group of infants born at 33-36 weeks of gestation (r = –0.38). The strength of the relationship increased with an increase in the intensity of the applied sound signal from 80 to 100 dB. Conclusion. The obtained data indicate possible disturbances in sound conduction in premature infants, as well as the synchronous spectral development of the nervous system, middle and inner ear, which must be considered when interpreting the results of examinations in children in the first year of life, and especially in premature infants.
Publication date:
08.08.2026
Keywords:
acoustic reflex, otoacoustic emission, preterm infants, hearing For citation:
Rakhmanova I. V., Matroskin A. G., Polunin M. M., Petukhova A. I., Shirabaikina D. D. Agerelated features of dynamic parameters of acoustic reflex and cochlea in premature infants in the first year of life. Russian Otorhinolaryngology. 2026;25(4):99-105. (In Russ.) https://doi.org/10.18692/1810-4800-2026-4-99-105