Prevalence of Laryngomalacia among Young Children Presenting with Stridor in a Tertiary Care Hospital

Abstract

Introduction: Laryngomalacia is one of the most common causes of stridor in young children. It can be a serious concern to both parents and caregivers. The main objective of this study is to find the prevalence of laryngomalacia among young children presenting with stridor in a tertiary care hospital in central Nepal.

Methods: A descriptive cross-sectional study was carried out form 1st December 2017 to 1st May 2020 in children less than two years of age in a tertiary care hospital. Ethical approval was taken from the Institutional Review Committee of the hospital (reference number: 2020/23). Convenient sampling was done. Detailed demography, clinical examination, and video laryngoscopy findings were evaluated to find the prevalence of laryngomalacia among all children with stridor. Data were analyzed by using Statistical Package for the Social Sciences version 20. Point estimate at 95% confidence interval was calculated along with frequency and proportion for binary data.

Results: Out of 430 participants who presented with stridor, the laryngomalacia was found in 234 (66%) (58.7-74.07) cases at a 95% confidence interval. The male: female ratio was 1.7:1. Most children, 192 (67.6%), presented with a milder form of laryngomalacia. The most common type was a mixed type of laryngomalacia in 159 (56%). Sleep-disordered breathing was seen in 113 (39.79%) of children diagnosed with laryngomalacia.

Conclusions: Our study concluded that laryngomalacia was the most common cause of stridor in children less than two years of age. However, in most cases, the problem is not serious and a regular follow-up with weight monitoring is warranted.