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Abstract：
Background Upper airway obstruction (UAO) is a significant clinical concern due to its potential to lead to serious health issues, including obstructive sleep apnea (OSA) and cardiovascular diseases. Traditional diagnostic methods, such as spirometry, are often invasive and complex. This study aims to validate a portable ventilatory airway screening (PVAS) device as a non-invasive, cost-effective alternative for measuring upper airway breathing pressure and respiratory flow. Objectives To validate the accuracy of the PVAS device in measuring upper airway breathing pressure and respiratory flow by comparing its readings with those obtained from standard spirometry tests. Methods This cross-sectional analytical study involved 40 growing individuals aged 10-14 years, divided into two groups based on cephalometric analysis: Skeletal Class I (20 patients) and Skeletal Class II with retrognathic mandible (20 patients). Breathing pressure, volume, and velocity measurements were recorded using both the PVAS device and spirometry, and their accuracy was compared. Results The PVAS device showed high concordance with spirometry results, demonstrating significant accuracy in measuring breathing pressure, volume, and velocity. Skeletal Class II individuals exhibited significantly higher breathing pressure and reduced respiratory flow compared to Class I individuals, as measured by the PVAS device. Conclusion The PVAS device is a valid and accurate tool for non-invasive measurement of upper airway breathing pressure and respiratory flow. Its ease of use and reliability make it a valuable tool for clinical practice, particularly in the early diagnosis and management of airway obstructions.
摘要：
背景上气道阻塞（UAO）是一个重要的临床问题，因为它可能导致严重的健康问题，包括阻塞性睡眠呼吸暂停（OSA）和心血管疾病。传统的诊断方法，例如肺活量测定，通常是侵入性的和复杂的。本研究旨在验证便携式通气气道筛查（PVAS）装置作为一种非侵入性，用于测量上气道呼吸压力和呼吸流量的具有成本效益的替代方案。目的通过将PVAS装置的读数与标准肺活量测定测试的读数进行比较，验证PVAS装置测量上气道呼吸压力和呼吸流量的准确性。方法这项横断面分析研究涉及40名年龄在10-14岁的正在成长的个体，根据头颅测量分析分为两组：I类骨骼（20例）和II类骨骼下颌骨（20例）。呼吸压力，volume,使用PVAS设备和肺活量测定法记录速度测量值，并对其准确性进行了比较。结果PVAS装置与肺活量测定结果有较高的一致性,证明了测量呼吸压力的显着准确性，volume,和速度。与I类个体相比，II类骨骼个体表现出明显更高的呼吸压力和减少的呼吸流量。由PVAS装置测量。结论PVAS装置是无创测量上气道呼吸压力和呼吸流量的有效和准确的工具。它的易用性和可靠性使其成为临床实践的宝贵工具，特别是在气道阻塞的早期诊断和治疗中。
