c244749286 Both PAV and NAVA improve patient-ventilator synchrony, but further study of both is needed to determine if either improves patient outcomes. None of the NAVA studies lasted for more than a few hours. Porta R, Appendini L, Vitacca M, Bianchi L, Donner CF, Pogg R, Ambrosino N . Previous SectionNext Section Younes:* For any trigger you have to choose a threshold: you can't just say any time you see an increase in Edi [electrical activity of the diaphragm] or in this or that, go ahead and trigger. New things are not always better: proportional assist ventilation vs. Obviously, any patient who requires substantial sedation or has marked hemodynamic compromise would not be appropriate for PAV or NAVA. Respiratory muscle workload in intubated, spontaneously breathing patients without COPD: pressure support vs. 3.
Intensive Care Med 1999;25(8):790798. In patients who have a lot of auto-PEEP it may be a problem ventilating them with PAV. Vitacca M . Giannouli E, Webster K, Roberts D, Younes M . Bengtsson JA, Edberg KE . Bsqueda rpida:ForoTemasInternet. Essentially, the ventilator proportionally unloads patient effort, in both PAV and NAVA, based on the setting of ventilator work: proportion (%) unloaded by the ventilator (PAV), or cm H2O pressure applied per millivolt of diaphragmatic EMG activity (NAVA).7 . Am J Respir Crit Care Med 1996;153(3):10051011.
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