Related Experiment Video
Updated: Mar 23, 2026

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
Left bundle branch block, chest pain and catheterization laboratory activation: an unavoidable cascade reaction?
G Ciliberti1, M Del Pinto2, F Notaristefano1
1Division of Cardiology, School of Medicine, University of Perugia, Perugia, Italy.
Abstract:
Identification of acute myocardial infarction (AMI) in the presence of left bundle branch block (LBBB) remains challenging. European guidelines recommend prompt reperfusion therapy in patients with suspected ongoing myocardial ischemia and new or presumably new LBBB, whereas AHA/ACC guidelines state that LBBB should not be considered diagnostic of AMI in isolation. Sgarbossa criteria and their recent modified version with the introduction of ST/S ratio can be helpful in this setting. A clinical-instrumental algorithm to manage suspected AMI in the presence of LBBB has been recently proposed. We present five paradigmatic clinical cases.
Related Concept Videos
Cardiac Catheterization II: Right Heart Catheterization
Cardiac Catheterization III: Left Heart Catheterization
Cardiac Catheterization I: Pre-Procedure Overview
Cardiac Catheterization IV: Nursing Management
Angina III: Clinical Manifestations and Assessment
Acute Coronary Syndrome III: Diagnostic Studies

