1. Upper Airways Obstruction with Bilateral Vocal Cord Paralysis
Y. Cormier, M.D., H. Kashima, M.D., W. Summer, M.D., F.C.C.P., H. Menkes, M.D. 
CHEST 
Volume 75, Issue 4, Pages (April 1979)
DOI: /chest
Copyright © 1979 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Flow volume loops obtained with patient 7 (a) bilateral vocal cord paralysis, (b) after spontaneous recovery of left vocal cord paralysis and Teflon injection into right vocal cord. This figure illustrates the severity of reversible airflow obstruction that can be seen in patients with bilateral vocal cord paralysis.
CHEST  , DOI: ( /chest )
Copyright © 1979 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Maximum airflows in patient 8: (a) initial with bilateral vocal cord paralysis, (b) after arytenoidectomy and pexy, (c) after right vocal cord stripping. Repeat flow volume analysis can be useful to quantitate the effect of different surgical treatments on airflows.
CHEST  , DOI: ( /chest )
Copyright © 1979 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Flow volume loops for patient 3: (a) initial studies, and (b), one year after tracheostomy. By releasing the activity of the cricothyroid muscle, tracheostomy may decrease airway obstruction.
CHEST  , DOI: ( /chest )
Copyright © 1979 The American College of Chest Physicians Terms and Conditions