Abstract
In chronic hypoxia, structural changes occur in the pulmonary circulation, in particular medial hypertrophy of muscular pulmonary arteries as seen in residents at high altitude,1,2 in alveolar hypoventilation associated with obesity,1,3 and in experimental animal models.4,3 In chronic bronchitis and emphysema, increased muscularization of the peripheral arteries has been described, although its degree and role in the development of cor pulmonale has remained controversial.12 6 In cystic fibrosis, muscle hypertrophy of arteries and of small pulmonary veins, as well as peripheral extension of muscle, has been reported.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
