Air Pollution Does not Change Size or Pumping Ability of the Heart
Small particles of air pollution and living close to traffic
have been linked to heart disease in a number of large studies,
but the relationship between air pollution and the size or pumping
ability of the heart has not been studied. Increased heart size and
decreased pumping ability of the heart are associated with heart diseases
like heart failure. This study found a relationship between
living close to major roadways and the size of the heart, such that
living within 50 meters of a major roadway was associated with a small
increase in heart size.
Living close to roadways was not associated with changes
in the pumping ability of the heart, and background levels
of small particle air pollution were not associated with heart
size or pumping ability.
Van Hee VC, Adar SD, Szpiro
AA, Barr RG, Bluemke DA, Diez Roux AV, Gill EA, Sheppard L, Kaufman JD.
Exposure to Traffic and Left Ventricular Mass and Function
The Multi-Ethnic Study of Atherosclerosis. Am J Respir Crit Care Med. 2009;179(9):827-834