Mizuno K, Ueda A
Chiba Children's Hospital, Division of Neonatology, Chiba City, Japan.
Acta Paediatr. 2001 Dec;90(12):1384-8. doi: 10.1080/08035250152708761.
The aim of this study was to gain a better understanding of the development of sucking behavior in infants with Down's syndrome. The sucking behavior of 14 infants with Down's syndrome was consecutively studied at 1, 4, 8 and 12 mo of age. They were free from complications that may cause sucking difficulty. The sucking pressure, expression pressure, frequency and duration were measured. In addition, an ultrasound study during sucking was performed in sagittal planes. Although levels of the sucking pressure and duration were in the normal range, significant development occurred with time. Ultrasonographic images showed deficiency in the smooth peristaltic tongue movement.
The sucking deficiency in Down's syndrome may result from not only hypotonicity of the perioral muscles, lips and masticatory muscles, but also deficiency in the smooth tongue movement. This approach using the sucking pressure waveform and ultrasonography can help in the examination of the development of sucking behavior, intraoral movement and therapeutic effects.
本研究的目的是更好地了解唐氏综合征婴儿吸吮行为的发展。对14名唐氏综合征婴儿在1、4、8和12月龄时的吸吮行为进行了连续研究。他们没有可能导致吸吮困难的并发症。测量了吸吮压力、表达压力、频率和持续时间。此外，在矢状面进行了吸吮时的超声研究。虽然吸吮压力和持续时间水平在正常范围内，但随时间有显著发展。超声图像显示舌蠕动平滑运动不足。
唐氏综合征的吸吮缺陷可能不仅源于口周肌肉、嘴唇和咀嚼肌的张力减退，还源于舌平滑运动不足。这种使用吸吮压力波形和超声检查的方法有助于检查吸吮行为、口腔内运动的发展以及治疗效果。
