Simultaneous acute myocardial infarction, bilateral pulmonary embolism, and acute ischaemic cerebral stroke, a delayed complication in a patient with COVID-19 infection: case report.

Background: The simultaneous occurrence of acute myocardial infarction, pulmonary embolism, and acute cerebral stroke is a rare concomitant finding that requires thorough aetiological investigation. Multiple reports note delayed COVID-19 arterial and venous thromboembolic complications. However, to the best of our knowledge, this is the first report of such a simultaneous finding after COVID-19.

Ultrasound-guided axillary vein puncture for cardiac devices implantation in patients under antithrombotic therapy.

Background: Ultrasound-guided axillary venous puncture (UGAVP) for cardiac devices implantation has been developed because of its rapidity, safety and potential long-term lead protection. Early work excluded defibrillators (ICD), cardiac resynchronization therapy (CRT) and upgrade procedures. Compared to the cephalic approach, in previous studies, there was a greater use of pressure dressings with this technique, suggesting a higher risk of bleeding.

A comparison between multipolar mapping and conventional mapping of atrial tachycardias in the context of atrial fibrillation ablation.

Background: Activation mapping can be challenging and time-consuming in patients with multiple atrial tachycardias (ATs).

Aims: To compare multielectrode mapping using a dedicated mapping catheter - PentaRay (Biosense Webster Inc.) - and the conventional technique for mapping ATs in the context of atrial fibrillation (AF) ablation.

Selection of Critical Isthmus in Scar-Related Atrial Tachycardia Using a New Automated Ultrahigh Resolution Mapping System.

Background: Accurate activation mapping of reentrant scar-related atrial tachycardias (AT) allows efficient radiofrequency ablation by targeting the critical isthmus (CI). We aimed to assess the electrophysiological properties of CI channels during mapping with the IntellaMap Orion basket and the Rhythmia system.

Methods And Results: We prospectively studied 33 AT (post- atrial fibrillation ablation or surgical mitral valve repair).

Ultra-High-Definition Mapping of Atrial Arrhythmias.

The advantages of ultra-high-definition (UHD) mapping are presented in the context of different atrial arrhythmias, whether focal or macroreentrant. Not only are these sophisticated systems time-saving, but they also allow accurate identification of the substrate (scar quantification), as well as a more precise characterization of the critical isthmuses or focal sources of the atrial circuits. UHD mapping may become a standard approach for their curative treatment.