Jens Cosedis Nielsen

Cardiac resynchronization therapy (CRT) with biventricular pacing (BiVP) remains a cornerstone treatment for patients with heart failure with reduced ejection fraction and left bundle-branch block (LBBB), supported by decades of randomized evidence demonstrating reductions in mortality and heart failure hospitalization.1 In parallel, conduction system pacing (CSP), most commonly delivered as left bundle-branch area pacing (LBBAP), has emerged as a physiologically appealing alternative, aiming...

1 Introduction The implantable cardioverter defibrillator (ICD) is a guideline-recommended treatment for prevention of sudden cardiac death in patients at high risk of experiencing life-threatening arrhythmias [1]. The ICD has demonstrated marked survival benefits compared with anti-arrhythmic drugs [2, 3].

: Our purpose was to examine the association between beta-blocker dose and mortality following acute myocardial infarction. : This nationwide cohort study enrolled all patients admitted for first-time acute myocardial infarction in Denmark during 1 July 2004-31 December 2014 using the Danish National Patient Registry. Patients alive 15 days after admission were followed until death, emigration, or 31 December 2014.