STUDY OBJECTIVE
To compare the PercussiveTech HF (PTHF) device (Vortran Medical Technology 1; Sacramento, CA) to standard manual chest physiotherapy (CPT) with respect to acute changes in pulmonary function, sputum production, and pulse oximetry in patients with cystic fibrosis (CF).
DESIGN
Randomized crossover.
SETTING
University-affiliated, community-based CF center.
PARTICIPANTS
Ten cl...
