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CARDIOVASCULAR JOURNAL OF AFRICA • Volume 29, No 6, November/December 2018
AFRICA
365
by the same physician, and there was a lack of inter-observer
variability. Lastly, manual measurement of the Tp-e and Tp-e/
QT interval may be less reliable than measurements that are
conducted with digital systems.
Conclusions
This study showed that the new TDR parameters: Tp-e interval,
Tp-e/QT ratio and QTd were increased in children with ARC;
however, the heterogeneity of TDR seems to occur independently
of acute inflammation and the number of valves involved. The
prolonged Tp-e interval and increased Tp-e/QT ratio might be
useful markers for predicting myocardial involvement in children
with ARC. These parameters may be used as minor criteria
in RF. Therefore prospective follow-up studies are needed to
evaluate TDR parameters in children with RC, both before and
after treatment.
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