Maquet introduces NAVA for non-invasive ventilation for patients
22 Oct 2010
Maquet Critical Care has introduced NAVA for
non-invasive ventilation (NIV) in adult patients at the European Society
of Intensive Care Medicine‘s 23rd Annual Congress this month.
Neurally adjusted ventilatory assist (NAVA) has become an
established method of treatment in hospitals globally and now
enables both invasive and non-invasive treatment.
In conventional non-invasive ventilation, patient-ventilator
asynchrony is common. Studies suggest that leaks may play a major
role in generating patient-ventilator asynchrony and discomfort.
NAVA provides synchronized assist while breath triggering and
cycle-off are not affected by leakage. Every patient effort is
assessed and responded to equally effectively regardless of patient
interface used, resulting in reduced work of breathing and increased
patient comfort.
“NAVA has already become a trusted and established treatment
method for invasively ventilated patients and we are proud to make
the benefits of NAVA available also for non-invasive ventilation,”
said Jens Viebke, President at MAQUET Critical Care. “Our hope is
that NAVA will help increase usage of NIV and thereby reduce the
need for intubation of patients.”
About NAVA
The NAVA approach to mechanical ventilation is based on the
patient’s neural respiratory output. Signals from the respiratory
control in the brain are transmitted through the phrenic nerve to
the diaphragm, a catheter senses the electrical activity (Edi) and
feeds it to the ventilator. The ventilator responds by providing the
requested level of support to the patient. As the ventilator and
diaphragm work with the same signal, the coupling between the two is
virtually instantaneous.
There are several benefits with NAVA including:
- improved synchrony between the patient and the ventilator;
- enhanced patient comfort as the improved synchrony helps
minimize patient discomfort and agitation while it promotes
spontaneous breathing;
- the Edi signal can be used as decision support for medical
staff concerning intubation and/or extubation;
- the Edi signal can be used as a unique monitoring tool
providing information about respiratory drive, volume
requirements, effects of changes in ventilatory settings and to
gain indications for sedation and weaning.