Montecchia Francesco, Papoff Paola
Medical Engineering Laboratory, Department of Civil Engineering and Computer Science Engineering, University of Rome "Tor Vergata", 1 Politecnico Street, 00133 Rome, Italy.
Pediatric Intensive Care Unit, Department of Pediatrics, Sapienza University of Rome, 00100 Rome, Italy.
Sensors (Basel). 2025 Mar 24;25(7):2022. doi: 10.3390/s25072022.
Nasopharyngeal ventilation (NPV) is a common technique used to support breathing, particularly when a patient's respiration is inadequate, such as under sedation. It involves delivering oxygen through an endotracheal tube positioned above the glottis. Accurate tidal volume measurement is crucial for anesthesiologists, with the gold standard being a pneumotachograph. However, due to leakage from the mouth or mask, this method has limitations when applied to NPV. This study introduces a computational model that calculates respiratory flow in real time by accounting for leak flow. Results show that tidal volume measurements using this method are comparable to the gold standard, assuming the model's assumptions hold true.
鼻咽通气（NPV）是一种用于支持呼吸的常用技术，特别是当患者呼吸不足时，例如在镇静状态下。它涉及通过置于声门上的气管内导管输送氧气。准确测量潮气量对麻醉医生至关重要，金标准是呼吸流速计。然而，由于口腔或面罩漏气，该方法应用于NPV时存在局限性。本研究引入了一种计算模型，该模型通过考虑漏流实时计算呼吸流量。结果表明，假设该模型的假设成立，使用此方法测量的潮气量与金标准相当。
