Numerical simulations for the curative effect of the nasal surgery on patients with OSAHS
Received:April 14, 2012  Revised:August 25, 2012
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DOI:10.7511/jslx201301007
KeyWord:Nasal surgery  OSAHS  Finite element method  Fluid-structure interaction
              
AuthorInstitution
于申 大连理工大学 工业装备结构分析国家重点实验室,大连
刘迎曦 大连理工大学 工业装备结构分析国家重点实验室,大连 ;大连医科大学 附属二院耳鼻咽喉科,大连
孙秀珍 大连理工大学 工业装备结构分析国家重点实验室,大连 ;大连医科大学 附属二院耳鼻咽喉科,大连
苏英锋 大连医科大学 附属二院耳鼻咽喉科,大连
王莹 大连理工大学 工业装备结构分析国家重点实验室,大连
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Abstract:
      The upper airway structure containing soft palate organizations of three OSAHS patients with nasal obstruction would be reconstructed to study the airflow distribution and movement of the soft palate before and after surgery using numerical simulation method.The curative effect would be analyzed for the nasal surgery on patients with OSAHS.The degree of nasal obstruction in three patients has been improved after surgery.For two patients with mild OSAHS,the resistance of upper airway and the displacement of soft palate decreases after surgery.These changes are contributing to the mitigation of the respiratory airflow limitation.For the third of patients with severe OSAHS,the resistance of upper airway and the displacement of soft palate actually increased after surgery,which will further increase the degree of airway obstruction.The curative effect of nasal surgery on patients with OSAHS depends on whether the improvement of nasal obstruction benefiting the pharynx.Numerical simulation results match the results of PSG test,chief complaint and clinical findings.It can indirectly reflect the degree of nasal patency and improvement of snoring symptoms which can provide a theoretical basis to solve the clinical problems.