Recent advances in echocardiographic techniques, including tissue-Doppler imaging and speckle tracking derived strain analysis, enable detailed assessment of myocardial function during stress testing.
The determinations of anaerobic threshold by means of HR curve analysis have some limitation and it is not always possible due to different response to effort of myocardial function and HR [ 46].
This has been observed clinically in patients with reperfused myocardial infarcts, where the absence of MIBI correlates with the lack of return of myocardial function [27].
MRI is accurate in the quantification of myocardial function and scar, which has prognostic value.
Cardiac MRI is considered the gold standard in evaluation of myocardial function [60].
AMPK plays an essential role for the maintenance of myocardial function [34].
Furthermore, TDI offers more direct evaluation of myocardial function.
The common final path is an impairment of myocardial function.
This could support the conclusion that impairment of myocardial function can occur without myocardial ischaemia in the acute phase.
The long-term prognosis of TTC patients is favorable due to spontaneous recovery of myocardial function.
