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QuickPrime Measurements for Deeper Insight

QuickPrime Measurements for Deeper Insight What is the forced oscillation technique (FOT)? Simply put, the forced oscillation technique is: Pausing ventilation Sending a test signal to the lungs Measuring the subject’s response The test signal is either a single frequency (matching the breathing frequency of the subject) or made up of multiple frequencies. When adding […]

New Insights From Pressure-volume Loops

New Insights From Pressure-volume Loops Lung function measurements with the flexiVent frequently include Pressure-Volume (PV) loops for insight on the intrinsic elastic properties of the respiratory system. The typical maneuver slowly inflates the lungs in steps, from Positive-End Expiratory Pressure (PEEP; 3 cmH2O) to 30 cmH2O, and then deflate them in a similar way to generate a […]

Electronic Nicotine Delivery Systems (ENDS)

Electronic Nicotine Delivery Systems (ENDS) Electronic nicotine delivery systems (ENDS) are gaining in popularity in recent years. As a broad overview, an ENDS unit is a battery-powered device which heats up a metal resistive coil to produce an inhalable vapour of an e-liquid, without tobacco combustion. This e-liquid typically consists of Propylene Glycol (PG) and […]

What You Always Wanted To Know About Specific Airway Resistance

What You Always Wanted To Know About Specific Airway Resistance Specific airway resistance (sRaw), or its reciprocal specific airway conductance (sGaw), was first introduced over 35 years ago as a way to gather information on airflow resistance in conscious subjects during quiet spontaneous breathing. This parameter is derived from the double-chamber plethysmography (DCP) technique, which […]

First Idiopathic Pulmonary Fibrosis Mouse Model

First Idiopathic Pulmonary Fibrosis Mouse Model Congratulations to Dr. Beers and his team for developing and phenotyping the first idiopathic pulmonary fibrosis mouse model! Pulmonary fibrosis mouse model – why do we need them? Mouse models are an important research tool for preclinical scientists. Alternatives including cells and computer simulations do exist, however they are not […]

Measuring Dynamic Compliance and Static Compliance.

Dynamic Compliance & Static Compliance Measuring Dynamic Compliance and Static Compliance. At each breath, the respiratory system must overcome two opposing forces to be able to move air in and out of the lungs: the resistance to airflow and the distensibility (or compliance) of the respiratory system. Physiological and/or pathological factors may alter these mechanical […]