Purpose: To investigate the amount of laryngeal lift during the pitch glide speech task and during a bolus swallow.Method: Modified Barium Swallows (MBS) videos captured speech tasks and bolus trials. Using SwallowTail®, laryngeal elevation was measured by the amount of laryngeal lift from rest to its maximum excursion during each subject's pitch glide and 5 mL thin liquid, 20 mL thin liquid, and 15 mL puree trials. Paired t-tests, with Bonferroni correction, determined if there was a difference in laryngeal lift between the pitch glide and the bolus trials. Two methods were used to compare the methodology of measuring laryngeal lift.Result: Each subject's pitch glide was compared to their swallows. Laryngeal lift during the bolus swallow was greater than the lift during the pitch glide by an average of 1.10 cm, 1.38 cm, and 1.34 cm for 5 mL thin liquid, 20 mL thin liquid, and 15 mL puree, respectively. There was a significant difference in laryngeal lift between the pitch glide task and the 20 mL thin liquid, 5 mL thin liquid, and 15 mL puree swallows. Measurement tracking the posterior cricoid detected greater differences than the previous methodology using the hyoid.Conclusion: In this group of dysphagic patients, the larynx lifted significantly less during a pitch glide than during bolus swallows.

译文

目的: 研究俯仰滑行语音任务和推注吞咽过程中喉部提升的量。方法: 改良的钡燕子 (MBS) 视频捕获语音任务和推注试验。使用燕尾®,通过在每个受试者的俯仰滑行和5  mL稀液体,20  mL稀液体和15  mL原浆试验中从静止到最大偏移的喉部提升量来测量喉部升高。配对t检验,Bonferroni校正,确定了俯仰滑行和推注试验之间的喉升度是否存在差异。使用两种方法比较测量喉升度的方法。结果: 将每个受试者的俯仰滑行与其燕子进行比较。对于5  mL稀液体、20  mL稀液体和15  mL浓汤,推吞过程中的喉部升力分别大于俯仰滑行过程中的升力,平均分别为1.10  cm、1.38 cm cm和1.34  cm。俯仰滑翔任务与20  mL稀液、5  mL稀液、15  mL原浆燕子的喉部升力有显著性差异。与以前使用舌骨的方法相比,后环状肌的测量跟踪检测到更大的差异。结论: 在这组吞咽困难的患者中,在俯仰滑行期间的喉部抬起明显少于推注吞咽期间。

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