Rapid maxillary expansion effects of nasal airway in children with cleft lip and palate using computational fluid dynamics
Rapid maxillary expansion effects of nasal airway in children with cleft lip and palate using computational fluid dynamics
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DOI：
10.1111/ocr.12311
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发表时间：
2019-08-01
影响因子：
3.1
通讯作者：
Yamasaki, Youichi
中科院分区：
文献类型：
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作者：
Iwasaki, Tomonori;Yanagisawa-Minami, Ayaka;Yamasaki, Youichi
目的快速上颌扩张术（RME）改善非腭裂儿童鼻气道通气。患有单侧唇腭裂（UCLP）的儿童可能有鼻塞，并经历阻塞性睡眠呼吸暂停的风险增加。RME对UCLP儿童的影响尚不清楚。本回顾性研究利用计算流体动力学评估了rme引起的UCLP患儿通气参数的变化。背景和样本人群19例（10例男孩，平均年龄10.7岁）需要RME的患者在RME前后进行了锥束计算机断层扫描。20名对照参与者（11名男孩，平均年龄11.1岁）接受常规正畸治疗。方法采用计算流体力学方法分析鼻气道通气参数（气压、风速、气流率），并测量鼻横截面积。结果RME能显著降低UCLP组的最大压力、速度和鼻阻力。在UCLP组，RME显著增加了裂侧的空气流速和CSA。结论在UCLP患儿中，通过RME增加裂唇侧气流量和CSA可显著改善鼻通气。
Structured AbstractObjectives Rapid maxillary expansion (RME) improves nasal airway ventilation in non-cleft palate children. Children with unilateral cleft lip and palate (UCLP) may have nasal obstruction and experience an increased risk of obstructive sleep apnoea. The effect of RME in UCLP children is unclear. This retrospective study evaluated RME-induced changes in ventilation parameters in children with UCLP using computational fluid dynamics. Setting and Sample Population Nineteen patients (10 boys, mean age 10.7 years) who required RME had cone-beam computed tomography images taken before and after RME. Twenty control participants (11 boys, mean age 11.1 years) received regular orthodontic treatment. Methods Nasal airway ventilation parameters (air pressure, air velocity and airflow rate) were analysed via computational fluid dynamics, and nasal cross-sectional area (CSA) was measured. Results Maximum pressure, velocity and nasal resistance were significantly reduced by RME in the UCLP group. Air flow rate and CSA on the cleft side significantly were increased by RME in the UCLP group. Conclusions In children with UCLP, increasing the quantity of airflow and CSA on the cleft side by RME substantially improved nasal ventilation.