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Revascularization StrategIes for ST Elevation Myocardial Infarction Trial

Not Applicable
Conditions
Primary Angioplasty
Coronary Stenting
ST Elevation Myocardial Infarction
Interventions
Procedure: Same sitting PCI with complete revascularization
Procedure: Staged PCI with complete revsacularization >48 hours pf primary PCI
Registration Number
NCT03263468
Lead Sponsor
Unity Health Toronto
Brief Summary

This study is being conducted in patients with a major heart attack caused by a blocked artery undergoing Percutaneous Coronary Intervention (PCI) to open up the blockage. Up to 50% of people with an heart attack are found to have one or more additional narrowings that did not cause the heart attack. At present the best way to manage these additional blockages is not known. Many cardiologist recommend opening these blockages at at a later time after the heart attack. The present study is examining if PCI of all blockages at the same time as the PCI for the artery that caused the major heart attack (SS-PCI) will reduce the amount of heart damage compared to performing PCI of additional blockages 2-45 days later (IRA-PCI). Clinical follow up will be completed at 3, 12 and 24 months to determine heart function and monitor adverse events.

Detailed Description

Not available

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
3520
Inclusion Criteria
  • ST elevation myocardial infarction evidenced by new ST elevation at the J point in at least 2 contiguous leads of ≥ 2 mm (0.2mV) in men or ≥ 1.5mm (0.15mV) in women in leads V2-V3 and/or ≥ 1mm (0.1mV) in other contiguous chest leads or limb leads.
  • MVD as evidenced by > one significant (>70% by visual assessment or FFR < 0.80 for 50-70% stenosis) stenosis in the non-IRA >2mm in diameter.
  • Successful IRA-PCI with <30% residual angiographic stenosis and TIMI III flow
  • Written informed consent
Exclusion Criteria
  • Age ≤ 18 years
  • Prior coronary artery bypass graft (CABG) surgery
  • Administration of thrombolytic therapy.
  • Hemodynamic instability as evidenced by SBP<90 mmHg, Killip class ≥3, and/or need for inotropes/vasopressors.
  • Known renal insufficiency (estimated GFR < 30 ml/min/1.73m2)
  • Non-IRA stenosis is a chronic total occlusion (CTO)
  • Plan by treating physician to treat non-IRA stenosis with coronary artery bypass surgery

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Same sitting complete revascularizationSame sitting PCI with complete revascularizationAfter treatment of the IRA, subjects will undergo PCI of all suitable significant non-IRA lesions (≥70% by visual assessment or FFR\<0.80 in 50-70% lesions with vessel diameter \>2mm).
Staged non-IRA PCIStaged PCI with complete revsacularization >48 hours pf primary PCIOnly the IRA will be intervened upon during the index primary PCI procedure. Staging of the non-IRA lesions will be performed 48 hours to 45 days after the primary PCI procedure. All suitable non-IRA lesions (≥70% by visual assessment or FFR\<0.80 in 50-70% lesions with vessel diameter \>2mm) will be treated with PCI irrespective of whether there are clinical symptoms or evidence of ischemia.
Primary Outcome Measures
NameTimeMethod
Major adverse clinical events90 days

Composite of all-cause mortality, myocardial infarction, heart failure and unplanned revascularization

Secondary Outcome Measures
NameTimeMethod
Major bleeding90 days
Stroke90 days
Contrast nephropathy90 days
Major vascular complication90 days
EQ-5D quality of life assessment90 days
Myocardial infarction90 days
All cause mortality90 days
Unplanned revascularization90 days
Incremental Cost-Effectiveness Ratio (ICER)90 days
Heart failure90 days
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