Head to head comparison of quantitative flow ratio using 4-French and 6-French catheters versus fractional flow reserve.

Objectives: To validate QFR using 4-F diagnostic catheters compared to using 6-F guiding catheters, with conventional guidewire-based FFR as the reference standard, using independent core laboratory analysis.

Background: Quantitative Flow Ratio (QFR) allows Fractional Flow Reserve (FFR) calculation based on the coronary angiogram, using 5- or 6-French (F) catheters. However, the use of 4-F diagnostic catheters to perform coronary angiography is currently routine in some centers.

Extracorporeal life support in the multidisciplinary management of cardiogenic shock complicating acute myocardial infarction.

Objectives: To analyze the results of extracorporeal life support (ECLS) for cardiogenic shock complicating acute myocardial infarction (AMI) in a single-center experience.

Background: Cardiogenic shock is still a leading cause of death for AMI. Conventional management carries mortality rates exceeding 50%.

Incidence and Significance of Spontaneous ST Segment Re-elevation After Reperfused Anterior Acute Myocardial Infarction - Relationship With Infarct Size, Adverse Remodeling, and Events at 1 Year.

Background: Up to 25% of patients with ST elevation myocardial infarction (STEMI) have ST segment re-elevation after initial regression post-reperfusion and there are few data regarding its prognostic significance.

Methods and results: A standard 12-lead electrocardiogram (ECG) was recorded in 662 patients with anterior STEMI referred for primary percutaneous coronary intervention (PPCI). ECGs were recorded 60-90 min after PPCI and at discharge.