Although connective tissue abnormalities make the tiny air sacs within the lungs less elastic, people with Marfan syndrome generally do not experience noticeable lung symptoms.
However, if these tiny air sacs become stretched or swollen, the risk of lung collapse may increase. In rare cases, people with Marfan syndrome may have sleep-related breathing disorders such as snoring or sleep apnea (a sleep disorder characterized by brief periods when breathing stops).