Article

OBJECTIVE: To use the ratio of early mitral inflow peak velocity (E) to mitral
flow propagation velocity (FPV) measured in the early phase of myocardial
infarction (early phase E/FPV) to evaluate the training effects of 8 weeks'
cardiopulmonary rehabilitation in patients post-myocardial infarction. DESIGN:
Single-blinded, randomized control trial. PARTICIPANTS: Eighty-seven patients
with acute myocardial infarction who had undergone primary coronary intervention.
METHODS: Participants were enrolled randomly to either the cardiac rehabilitation
or the control group. The rehabilitation group followed an 8-week supervised
rehabilitation programme. All patients completed exercise testing and echo-
cardiography at both the beginning and at 8-week follow-up. RESULTS: The value of
E/FPV was significantly reduced at 8-week follow-up in the rehabilitation group
(p = 0.005). After cardiac rehabilitation, the increase in peak V(O2) (p = 0.002)
and cardiac clinical outcome (composition of mortality, cardiac readmission rate,
and revascularization rate) (p = 0.001) were significantly greater in patients
with an early phase E/FPV < 1.5 than in patients with early phase E/FPV >or= 1.5.
There were no significant differences in the increase in peak V (O2) and cardiac
clinical outcome in patients with early phase E/FPV >or= 1.5. CONCLUSION: Early
phase E/FPV < 1.5 predicts more beneficial effects of cardiac rehabilitation in
post-acute myocardial infarction patients who have undergone primary coronary
intervention.

Langue : ANGLAIS