[Evaluation of a portable sleep monitor for the postoperative efficacy of supraglottoplasty in neonates with severe laryngomalacia].

<b>Objective:</b>To explore whether a portable monitor device（PMD） can be used to evaluate the efficacy of supraglottoplasty（SGP） in neonates with severe laryngomalacia（LM）. <b>Methods:</b>A retrospective analysis of 11 neonates diagnosed as severe LM treated in our hospital from January 2020 to November 2023 was performed. All neonates underwent SGP under general anesthesia and overnight PMD monitoring before and after surgery.The changes of sleep monitoring parameters before and after surgery were compared, SPSS 18.0 statistical software was applied and Wilcoxon symbolic-rank l test was used. <i>P</i><0.05 showed statistical difference. <b>Results:</b>One week after surgery, the obstructive apnea-hypopnea index（OAHI）, obstructive apnea index（OAI）, oxygen desaturationindex（ODI） of 11 children were lower than those before operation, and the minimum pulse oximetry saturation（SpO2） was higher than that before operation, <i>P</i><0.05, the difference was statistically significant, and there was no significant difference in sleep apnea hypopnea index（AHI） compared with that before operation. One month after surgery, AHI, OAHI, OAI and ODI were lower than those before operation, and the minimum SpO2 and mean SpO2 were higher than those before operation, <i>P</i><0.05, the difference was statistically significant. <b>Conclusion:</b>Some parameters of PMD examination can be used to evaluate the efficacy of SGP in neonatal severe LM, which is an important auxiliary means for the evaluation of neonatal LM.