Behavior of Hygrometry During Noninvasive Mechanical Ventilation

Book Chapter
Esquinas, Antonio Matías . 2011
Publication Work Type: 
Publishing City: 
Berlin, Heidelberg
Publisher Name: 
Book Title: 
Humidification in the Intensive Care Unit
81 to 91
Publication Abstract: 

Recently, there has been growing interest in determining the best hygrometry level during noninvasive ventilation (NIV) and its potential influence on outcome. Several factors may influence hygrometry measures, which can be categorized into physical factors, such as the ventilator parameters, mask design, air leaks and the type of humidifier used, and factors related to the patient’s condition, such as the respiratory rate, mouth breathing and oxygen inspiratory fraction needed. In this chapter, we review the available bench and clinical studies that addressed the utility of hygrometry in NIV and discuss the technical limitations of different humidification systems.