Hearing and Visual Impairment in Children with Cerebral Palsy, A Study in Tertiary Level Hospital in Bangladesh
Authors: Hossain Md. Mofazzol , Hayat Showkat , Howlader Mohammad Bokhtier , Hamid Nazmul 
Published: May 2023

Background: Cerebral palsy (CP) is a diagnostic term used to describe a group of motor syndromes resulting from disorders of early brain development. CP remains unexplained in most cases and is typically diagnosed outside the neonatal period. Visual impairment decreases the quality of life and hearing impairment hampers linguistic development. This study aimed to observe the visual and hearing impairment of children with cerebral palsy associated with developmental disabilities. Material Methods: This is a cross-sectional observational descriptive study carried out in the department of Paediatric Neurology CMH Dhaka from March 2018 to February 2022. The participants (N=120) were from birth to 12 years of age. Detailed information was obtained in each case according to protocol. The pediatric neurologist based on the study definition crosschecked the diagnosis. The hearing assessment was done with the help of an Otolaryngologist in the department of Otolaryngology and the ophthalmological evaluation was done with the help of an ophthalmologist of the department of ophthalmology of CMH Dhaka. Hearing impairment, Ophthalmological motor disturbance, and developmental disabilities were correlated. A convenience sampling technique was used in this study. Relevant data were collected from hospital records. All the information was recorded in the fixed protocol. Collected data were classified, edited, coded, and entered into the computer for statistical analysis by using SPSS 2021. Results: In this study, among the 120 children with CP, the mean age of the study was 5.57(SD±3.89) age range of 2-12 years Males were 82(68%) and females were 38(32%), male-female ratio (sex M: F 2.15: 1). Spastic quadriplegia constitutes the predominant group 59(49%), followed by Spastic diplegia 21(18%), Spastic hemiplegia 20(17.5%), dyskinetic CP 09(8%), 7(6%) were mixed CP and 4(3%) were hypotonic CP. Hearing impairment was found in 87 (72%) cases and visual impairment was detected in 92(76%). Among them, the child with Spastic Quadriplegic (83%) and diplegic CP (62%) children had a hearing impairment. Regarding vision, no fix and follow were observed in 69(57%) cases. Among the studied CP child (n=120) 16 children (13.33%) had normal eye finding and 104 (86%) had abnormal eye findings. Refractive error (32.5%) and Squint (19%) were the most common ocular defect among studied patients. Other ocular defect were nystagmus(10%), optic atrophy(12.5%), microphthalmia(10%), corneal opacity(3%), optic hypoplasia(4.1%), cataract(2.5%), pigmentary retinopathy(5%), retro-lental fibroplasias(3.3%) and ptosis(2.5%). In children with hypotonic (athetoid) and mixed CP, almost all (11 of 11) children had visual impairment. Spastic quadriplegic CP children (80%) and Spastic diplegic CP children (90%) had one or more domains of visual impairment. Conclusion: Cerebral Palsy is a non-progressive various form of neurological disorder in children. Early visual screening and hearing assessment can help CP children to minimize mental retardation, learning difficulties, and speech delay.