Silent Myocardial Ischemia in Master Marathon Runner | Chapter 08 | New Insights into Disease and Pathogen Research Vol. 1
Silent myocardial ischemia is defined
as objective documentation of myocardial ischemia in the absence of angina or
anginal equivalents. Silent myocardial ischemia is quite different from silent
coronary artery disease. The symptomatic angina is the tip of the ischemic
iceberg and it is less frequent in athletes
than in non-athletes. Athletes change their perception of ischemic
stimulus and increasing pain threshold from increased circulating endorphin
levels. Silent myocardial
ischemia is more
prevalent than angina in patients
with coronary artery disease, and athletes are not immune to it. In order
to discover early
stages of malignant neoplasia
(e.g. breast and colon cancer) in the asymptomatic stage and
thus prevent reaching
final stages of the
disease, screening participation has been widely accepted. Vice
versa, although atherosclerotic
cardiovascular disease causes more
deaths and disabilities than all
causes of death
correlated to cancer, there
are no precise
guidelines concerning the
screening of asymptomatic elements
suffering from atherosclerosis. There are a number of reports
of exercise-related sudden deaths and myocardial infarctions in aerobically
trained athletes suffering from exercise - induced silent myocardial ischemia.
The most appropriate and common method to discover silent myocardial ischemia
is exercise stress testing. Therefore, in this chapter the authors describe three emblematic cases
of silent myocardial ischemia detected in master marathon runners during
systematic pre-participation screening. These marathon runners were
asymptomatic but were suffering from a severe coronary artery disease that was
detected only thanks to exercise treadmill stress test, and were then properly
treated. Silent myocardial ischemia is not such a rare event in athletes,
indeed quite the opposite. In fact, even though athletes are asymptomatic this
does not exclude the possibility that they are suffering from severe coronary
artery disease.
Author(s) Details
Massimo Bolognesi
Sports Cardiology Medicine
Center, ASL 112, District of Cesena, Italy.
View Volume: https://doi.org/10.9734/bpi/nidpr/v1
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