Heart:
People
with severe and long standing AS, especially people with AS in the hands,
feet and non-spinal joints, may develop inflammation of the heart (1
in 100 people). The valve in the heart may not work as well because the
artery and veins leading to the heart can become inflamed. Abnormalities
in the rhythm of the heart may occur and some people may need pacemakers..
Lung:
Rarely,
people who have had AS for 20 years or more may develop lung problems There
is damage to the lung causing cavities or holes in the upper part of
the lung. This does not normally have any symptoms and is often
only diagnosed when X rays are taken for other reasons, like a chest
examination. However, it can be a problem for people who smoke
and have AS. The cavities or holes can be colonized by fungi which live
in the tobacco and cause infection and bleeding into the lung.