Positive airway pressure adherence in veterans with posttraumatic stress disorder.

Study Objectives: to determine the short-term positive airway pressure (PAP) adherence rates and to identify non-mask-related risk factors associated with 30-day nonadherence to PAP in a population of veterans with obstructive sleep apnea (OSA) and posttraumatic stress disorder (PTSD).

Design: a retrospective study.

Settings: a Veterans Affairs hospital.

Matrix metalloproteases in bronchoalveolar lavage fluid of patients with type III Pseudomonas aeruginosa pneumonia.

Objectives: In patients with ventilator-associated pneumonia (VAP), Pseudomonas aeruginosa type III (TTSS) secreting isolates have been linked to poor clinical outcomes. Differential expression of matrix metalloproteinases (MMPs) induced by type III effector proteins may herald an irreversible lung injury.

Methods: Serial bronchoalveolar lavage fluids collected from 41 patients with P.