Volume 100, Issue 2, Pages 317-321 (August 1991) Treatment of Bronchial Asthma with Terbutaline Inhaled by Conespacer Combined with Positive Expiratory Pressure Mask Erika Frischknecht-Christensen, M.D., Ole Nørregaard, M.D., Ronald Dahl, M.D. CHEST Volume 100, Issue 2, Pages 317-321 (August 1991) DOI: 10.1378/chest.100.2.317 Copyright © 1991 The American College of Chest Physicians Terms and Conditions
FIGURE 1 Combined Nebuhaler-PEP-mask, which is constructed from a 750-ml volume conespacer (Nebuhaler) connected to a facemask with a T-tube for separation of inspiratory and expiratory airflow by a valve. Variable resistances can be applied onto the expiratory tube as connections of different diameters. A positive airway pressure will in this way be present only during expiration. CHEST 1991 100, 317-321DOI: (10.1378/chest.100.2.317) Copyright © 1991 The American College of Chest Physicians Terms and Conditions
FIGURE 2 PEF before and after inhalation during the treatment periods (mean and SEM). CHEST 1991 100, 317-321DOI: (10.1378/chest.100.2.317) Copyright © 1991 The American College of Chest Physicians Terms and Conditions
FIGURE 3 PEF before and after inhalation during the day (mean and 95% confidence intervals). CHEST 1991 100, 317-321DOI: (10.1378/chest.100.2.317) Copyright © 1991 The American College of Chest Physicians Terms and Conditions