Airway management techniques are aimed at reducing complications associated with artificial airways and mechanical ventilation, such as retained secretions. The impact of airway management techniques on ventilator-associated events (VAEs) varies considerably by modality. Closed-suction techniques are generally recommended but have limited, if any, impact on VAEs. Normal saline instillation during suctioning is not recommended. Devices designed specifically to remove biofilm from the inside of endotracheal tubes appear to be safe, but their role in VAE prevention is uncertain. Subglottic secretion clearance by artificial cough maneuvers is promising, but more research is needed to assess its clinical feasibility. Continuous cuff-pressure management appears to be effective in reducing microaspiration of subglottic secretions.
Ventilator graphic monitoring is common in ICUs. The graphic information provides clinicians with immediate clues regarding patient-ventilator interaction and ventilator function. These display tools are aimed at reducing complications associated with mechanical ventilation, such as patientventilator asynchrony. It is also useful to assess respiratory mechanics in mechanically ventilated patients using both scalar and plot displays on the ventilator. Additional information can be gained by observing secondary ventilator measures including stress index, inflection points, and work of breathing. Ventilator graphics impact mechanical ventilation management through optimizing effectiveness of patient care and enhancing promptness of clinician response. Despite being a valuable asset in providing high-quality patient care, many bedside clinicians do not have a thorough understanding of ventilator graphics. Mastery of ventilator graphics interpretation is key in managing patients who are receiving ventilatory support.
Inconsistencies occurred with the models constructed on the ASL 5000. It was deemed accurate for the study purposes. It is therefore essential to test models and evaluate magnitude of differences before use.
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