In this issue of RESPIRATORY CARE, Siobal and colleagues report on the correlation, precision, and bias of calculated physiologic dead space, determined using the volumetric capnography module available in the Dräger XL ventilator, compared to other methods (metabolic analyzer and volumetric CO2 monitor).1 It is important to note that the investigators choose comparative technologies that refle...

BACKGROUND In the acute respiratory distress syndrome (ARDS), lung-protective ventilation strategies combine the delivery of small tidal volumes (VT) with sufficient positive end-expiratory pressure (PEEP). However, an optimal approach guiding the setting of PEEP has not been defined. Monitoring volumetric capnography is useful to detect changes in lung aeration. OBJECTIVES The aim of this st...

together for as long a distance as possible. However, we feel that the benefits significantly outweigh any risks associated, and that cases such as this should not be used as an excuse to avoid capnography monitoring on ICU. Avoidable airway deathscontinue tooccuronICU andcapnography, withaudible alarms, will lead to early identification of airway obstruction or displacement. Our speciality sho...

Traditional methods of monitoring sedated pediatric dental patients have major shortcomings. This study evaluated the use of capnography in conjunction with pulse oximetry for monitoring children during conscious sedation for dental treatment. The specific purposes of the study were to determine if capnography would: (1) detect ventilatory changes that subsequently cause an oxyhemoglobin desatu...

OBJECTIVE To analyze and compare lung function of obese and healthy, normal-weight children and adolescents, without asthma, through spirometry and volumetric capnography. METHODS Cross-sectional study including 77 subjects (38 obese) aged 5-17 years. All subjects underwent spirometry and volumetric capnography. The evaluations were repeated in obese subjects after the use of a bronchodilator...

BACKGROUND AND OBJECTIVES Tracheal gas insufflation (TGI) consists in injecting gas in the trachea (usually oxygen). is used in patients with acute respiratory distress syndrome (ARDS) to reduce capnometry. In Anesthesiology, the reduction in capnometry can be useful, but there are no studies on the reduction in capnometry using TGI. The objective of this study was to evaluate the changes cause...

BACKGROUND Volumetric capnography dead-space measurements (physiologic dead-space-to-tidal-volume ratio [VD/VT] and alveolar VD/VT) are considered more accurate than the more readily available time-based capnography dead-space measurement (end-tidal alveolar dead-space fraction [AVDSF]). We sought to investigate the correlation between volumetric capnography and time-based capnography dead-spac...