Program in Behavioral Science, Harvard Medical School, Children's Hospital Boston, 300 Longwood Avenue, Boston, MA 02115, USA.
Dysphagia. 2013 Jun;28(2):234-44. doi: 10.1007/s00455-012-9440-y. Epub 2013 Jan 1.
Tongue-soft palate coordination and bolus head pharyngeal transit were studied by means of postacquisition kinematic analysis of videofluoroscopic swallowing images of ten preterm infants referred from hospital NICUs due to poor oral feeding and suspicion of aspiration. Sequences of coordinated tongue-soft palate movements and bolus transits during swallows of thin-consistency and nectar-thick-consistency barium were digitized, and time series data were used to calculate continuous relative phase, a measure of coordination. During swallows of nectar-thick compared to thin barium, tongue-soft palate coordination was more likely to be antiphase, bolus head pharyngeal transit time was longer, and coordination was significantly correlated with bolus head pharyngeal transit. Analysis of successive swallows indicated that tongue-soft palate coordination variability decreased with nectar-thick but not with thin-consistency barium. Together, the results suggest that slower-moving bolus transits may promote greater opportunity for available sensory information to be used to modulate timing of tongue-soft palate movements so that they are more effective for pumping liquids.
本文采用视频透视吞咽造影检查的运动后分析方法，对 10 名因口腔喂养不良和疑似吸入而从医院新生儿重症监护病房转来的早产儿进行研究，探讨了舌-软腭协调性和食团咽部通过情况。对稀薄和花蜜稠钡剂吞咽过程中协调的舌-软腭运动和食团通过进行数字化，并使用时间序列数据计算连续相对相位，作为协调性的度量。与稀薄钡剂相比，花蜜稠钡剂吞咽时，舌-软腭协调性更可能出现相反相位，食团头部通过时间更长，且协调性与食团头部通过时间显著相关。对连续吞咽的分析表明，随着花蜜稠钡剂的使用，舌-软腭协调性的可变性降低，但稀薄钡剂则不然。总之，这些结果表明，较慢的食团通过可能会为可用的感官信息提供更多的机会来调节舌-软腭运动的时间，从而使它们更有效地泵送液体。
