CARDIOVASCULAR JOURNAL OF AFRICA • Vol 24, No 9/10, October/November 2013
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AFRICA
excellent survival rate of 97% at five years.
33
Nevertheless, there
have been reported associations with adverse cardiac events.
34
None of the patients with MB had a history of cardiac events,
and only 11.18% of our patients had symptoms of chest pain
and dyspnoea during exercise. Beta-blocker therapy had been
administered to those patients.
There were a few limitations to this study. It was a retrospective
study that included only a single centre. The number of
patients with CCAs was low in comparison with conventional
angiography studies. The study population included patients who
required a cardiac CT scan, therefore the incidence of coronary
anomalies among the general population has not been answered
by this study.
Conclusions
Coronary anomalies and myocardial bridging were found to be
common among patients undergoing cardiac CT scans at our
institution, with an incidence of 23.6%. Most patients with CCA
and MB who underwent MSCT were asymptomatic, and 77% of
the patients with either CCA or MB were symptomatic.
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