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<p>Flexible nasopharyngolaryngoscopy (FNPLS) is the gold standard diagnostic tool for diagnosing laryngomalacia. Laryngeal ultrasound (LUS) is not routinely performed in this condition. Therefore, this study aimed to evaluate the implementability of ultrasound in diagnosing laryngomalacia and to explore a few potential objective parameters of laryngomalacia. FNPLS was performed in stridorous infants as a standard assessment. All patients were subjected to LUS within a week after being seen by the ORL team. The investigators were blinded to FNPLS findings. The severity of the laryngomalacia was classified according to the presenting symptoms and physical examination. Omega-shaped epiglottis, distance of epiglottis tip to interarytenoid area, and distance of lateral edge epiglottis were measured. The LUS findings were recorded, reviewed, and compared with FNPLS. A total of 45 patients were enrolled in the study. Four patients were excluded due to inadequate images. The most common cause of stridor is laryngomalacia (96%). Other causes identified on LUS are vocal cord palsy (6.7%), hemangioma (2.2%), and accessory thymus (2.2%). The mean distance of the epiglottis to the interarytenoid area was 3.08 ± 0.70&#xa0;mm in patients with LM and 3.97 ± 0.23&#xa0;mm in non-LM patients (p-value of &lt; 0.05). There was a significant difference in the mean distance from epiglottis to the interarytenoid area in these three severity groups, with a higher distance in less severe cases. LUS may serve as an adjunct to FNPLS for laryngomalacia diagnosis. Epiglottis- to-interarytenoid distance is a potential objective parameter for evaluating the severity of laryngomalacia.</p>

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Sonographic laryngeal assessment of laryngomalacia in stridorous infants

  • 期刊论文

  • 发表日期：

    2026年7月11日

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  • Nasibah Mohamad,
  • Mohd Ab Hakim Ibrahim,
  • Hazama Mohamad,
  • Azliana Aziz,
  • Rosidah Ibrahim,
  • Suzina Sheikh Abdul Hamid,
  • Ahmad Hadif Zaidin Samsudin

摘要

Flexible nasopharyngolaryngoscopy (FNPLS) is the gold standard diagnostic tool for diagnosing laryngomalacia. Laryngeal ultrasound (LUS) is not routinely performed in this condition. Therefore, this study aimed to evaluate the implementability of ultrasound in diagnosing laryngomalacia and to explore a few potential objective parameters of laryngomalacia. FNPLS was performed in stridorous infants as a standard assessment. All patients were subjected to LUS within a week after being seen by the ORL team. The investigators were blinded to FNPLS findings. The severity of the laryngomalacia was classified according to the presenting symptoms and physical examination. Omega-shaped epiglottis, distance of epiglottis tip to interarytenoid area, and distance of lateral edge epiglottis were measured. The LUS findings were recorded, reviewed, and compared with FNPLS. A total of 45 patients were enrolled in the study. Four patients were excluded due to inadequate images. The most common cause of stridor is laryngomalacia (96%). Other causes identified on LUS are vocal cord palsy (6.7%), hemangioma (2.2%), and accessory thymus (2.2%). The mean distance of the epiglottis to the interarytenoid area was 3.08 ± 0.70 mm in patients with LM and 3.97 ± 0.23 mm in non-LM patients (p-value of < 0.05). There was a significant difference in the mean distance from epiglottis to the interarytenoid area in these three severity groups, with a higher distance in less severe cases. LUS may serve as an adjunct to FNPLS for laryngomalacia diagnosis. Epiglottis- to-interarytenoid distance is a potential objective parameter for evaluating the severity of laryngomalacia.