Methods and results DST was performed by adding the measurement of the transmitral (E) and annular (e′) velocities to standard exercise echo in 559 consecutive patients without significant rest or exercise mitral regurgitation. Exertional DD was separately defined by post-stress E/e′ >13 or DFRI <13.5.(DFRI) was calculated as E'base x &E'; where &E' is the change of E' from baseline to exercise.
Conclusion Exercise E/e′ and DFRI are both associated with exercise capacity, but E/e′ is more closely associated with the expected parameters of DD.
Outro estudo já demonstrou o valor do eco de esforço para avaliar a diástole: Aqui completo. O exercício provoca aumento de velocidade da e’ e quanto maior esse aumento, mais reserva de diástole!