Clinical Research Of Acoustic Rhinometry In Diagnosing OSAHS Of Children

Objective:Paediatric obstructive sleep apnea hypopnea syndrome (OSAHS) is a common disorder characterized by complete or partial upper airway obstruction during sleep. Adenoid and/or tonsil enlargement is the leading cause for OSAHS in children. There are many measures to diagnose OSAHS, but there's no specific measure for children, meanwhile any method can't qualify the adenoid size. In this respect, acoustic rhinometry (AR) has brought new hope to the objective assessment of nasal airways and nasopharynx cavity in children. This technique is a rapid, non-invasive, painless and cheap. And it has a high reproducibility and accuracy. Our test is to assess the clinical application of AR in diagnosing OSAHS because of adenoid hypertrophy of children. From the present study we would like to show that AR is a valid method to analyze nasal and nasopharyngeal volume of children suffering from adenoid hypertrophy in quantity. And then we can predict how the disorder of adenoid hypertrophy contributes to the growth of nose.Methods:Twenty-eight patients with adenoid hypertrophy and seven normal children (3-10 years) were submitted to lateral X-ray and AR. Then we measure AN ratios (adenoidal-nasopharyngeal ratios). Based on the AN ratios, all children were assigned to three groups (A/N≤0.60, 0.600.70). The parameters, minimal cross-sectional area (MCSA), distance of the minimal cross-sectional area from the nostril (DMCA), nasal airway resistance (NR), nasal volume (NV), nasopharyngeal volume (NPV), were achieved from the AR curve. Finally the above parameters were compared by the ANOVA.Results:...