The purpose of this clinical study is to learn if there are any changes in how blood gets to your heart muscle and if your heart size changed after your heart attack.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
74
Local Institution
Birmingham, Alabama, United States
Local Institution
Boston, Massachusetts, United States
Local Institution
Nashville, Tennessee, United States
Local Institution
Seattle, Washington, United States
To better understand the interactions between the abnormalities in blood supply from the small vessels of the heart to the heart muscle after a heart attack and the changes in heart size 6 months after the heart attack.
To estimate the frequency of residual ischemia as assessed by stress myocardial perfusion imaging (MPI) in patients undergoing primary PCI for AMI.
To estimate the 6-month cardiac event rates (composite of death, another heart attack, hospitalization for heart failure, and irregular heart beats requiring treatment).
To determine the relationship between changes (from baseline) in LV systolic volume index and LVEF, as measured by gated SPECT imaging 6 months following reperfusion, and the presence and severity of residual ischemia.
To measure the performance of angiographic parameters of success of reperfusion therapy (TIMI frame count and TIMI myocardial perfusion grade) in predicting the presence of residual ischemia.
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Local Institution
Curibita, Brazil
Local Institution
São Paulo, Brazil
Local Institution
Ottawa, Ontario, Canada
Local Institution
Toronto, Ontario, Canada