[The use of water to seal facial mask for non invasive ventilation reduces the incidence of pressure ulcers].

Unlabelled: To demostrate that the use of water to seal facial mask for non invasive ventilation (NIV) reduces the incidence of facial pressure ulcers.

Methods: prospective study including 47 pacients who (according to their responsable physician) needs NIV. Intersurgical facial mask and Puritann Bennet 7200 ventilator are used.