The challenge of achieving lung protective ventilation
Although respiratory care has come a long way over the years, complications attributed to apropriate settings of mechanical ventilation continue to have an adverse impact on patient outcome. Today lung protective ventilation strategies largely rely on physiological parameters which only reflect global lung function. The well known complications of atelectasis and overdistension call for insight into the distribution of ventilation in the ventral and dorsal regions of the lung so that measures can be taken to individually tailor ventilator settingss snapshot in time. Determining how different lung regions respond to therapeutic interventions over time is challenging without continuous regional information.
THE VISION – CONTINUOUSLY VISUALIZING VENTILATION
Dräger understands the need for continuous information about regional distribution of ventilation to be available at the bedside. Our search for a suitable solution revealed that the monitoring technique of Electrical Impedance Tomography (EIT) had the potential to address this need. The progress of development, and results of clinical studies, confirmed that EIT provides the required information in a superior manner
THE METHOD – ELECTRICAL IMPEDANCE TOMOGRAPHY
EIT monitoring involves the application of a small current and measurement of resulting voltages to determine the ventilation related impedance changes that occur in a thoracic cross-section.Advanced data acquisition techniques and sophisticated reconstruction algorithms are used to generate mographic images and parameters which enable the assessment of regional distribution of ventilation as well as short-term changes of end-expiratory lung volume within the cross-section. This offers clinicians a new and unique perspective on respiratory care.
PulmoVista® 500 offers: – Continuous information about regional distribution of ventilation, displayed as images, waveforms and parameters – Trend display of regional distribution of ventilation – Trend display of changes in end-expiratory lung volume
PulmoVista 500 is an Electrical Impedance Tomograph which has been specially designed for use in clinical routine. Data is continuously displayed in the form of images, waveforms and parameters. Simply put, PulmoVista 500 lets you visualize the distribution of ventilation.
Regionally specific information
Mechanical ventilation is commonly used as a life saving measure for patients with respiratory complications. However, mechanicalventilation may lead to lung injury and cause inflammatory responses.It is often challenging to set PEEP and tidal volume so that the well known adverse effects of mechanical ventilation are minimized.Due to the heterogeneous properties of the injured lung, veolar collapse and overdistension may occur in different parts of thelung. Information about the regional distribution of ventilation is valuable for the management of mechanically ventilated patients PulmoVista 500 has been specifically designed to display and quantify regionally specific changes of air content.
Continuous dynamic bedside imaging
PulmoVista 500 provides continuous real-time dynamic images of ventilation and intrapulmonary air distribution at the bedside. Monitoring is possible for up to 24 hours, enabling a close watch to be kept on critical lung conditions and the effect of therapy changes. Additionally, clever use of trended information provides further insight into patient progress.
Non-invasive tomographic monitoring
The regional ventilation monitoring provided by PulmoVista 500 is non-invasive and without any side-effects. Unlike chest x-rays or CT, there’s no ionizing radiation involved. EIT involves minimal preparation so monitoring is established in just a few minutes.Patient preparation only requires the positioning of a flexible non-adhesive belt around the patient’s chest. PulmoVista 500 has been designed with the busy ICU environment in mind and does not interfere with the ICU workflow. D-87-2010 D-102-2010 D-28201-2009