Pulsed field ablation (PFA) has emerged as an effective and safe single-shot technology for pulmonary vein isolation (PVI) in atrial fibrillation (AF). However, comparative long-term outcome data between different PFA catheter designs, particularly for additional atrial ablation beyond PVI, remain scarce.

Pulsed field ablation (PFA) has emerged as an effective and safe single-shot technology for pulmonary vein isolation (PVI) in atrial fibrillation (AF). However, comparative long-term outcome data between different PFA catheter designs, particularly for additional atrial ablation beyond PVI, remain scarce.

Cardiac resynchronization therapy (CRT) with bi-ventricular pacing (BVP) is a well-established therapy in patients with heart failure with reduced ejection fraction (HFrEF). Conduction system pacing (CSP) has been proposed as an alternative to conventional BVP for HFrEF.

Coagulopathy, bleeding and transfusion of allogeneic blood products remain major concerns in a relevant portion of patients undergoing cardiac surgery, and all of them have been associated with increased postoperative morbidity and mortality.1,2 Prothrombin complex concentrate (PCC) has received increasing recognition in the perioperative treatment of bleeding patients after cardiac surgery. The recent Factor Replacement in Surgery (FARES) II trial randomized 528 patients who developed bleeding due to coagulation factor deficiency after cardiopulmonary bypass (CPB) to receive either PCC at a dose of 1,500 to 2,000 units or 3 to 4 units of fresh frozen plasma (FFP) after heparin reversal.

Coagulopathy, bleeding and transfusion of allogeneic blood products remain major concerns in a relevant portion of patients undergoing cardiac surgery, and all of them have been associated with increased postoperative morbidity and mortality.1,2 Prothrombin complex concentrate (PCC) has received increasing recognition in the perioperative treatment of bleeding patients after cardiac surgery. The recent Factor Replacement in Surgery (FARES) II trial randomized 528 patients who developed bleeding due to coagulation factor deficiency after cardiopulmonary bypass (CPB) to receive either PCC at a dose of 1,500 to 2,000 units or 3 to 4 units of fresh frozen plasma (FFP) after heparin reversal.

To examine whether early vasopressin use was associated with major adverse kidney events in patients requiring vasopressor support after cardiac surgery.

Cardiac resynchronization therapy (CRT) with bi-ventricular pacing (BVP) is a well-established therapy in patients with heart failure with reduced ejection fraction (HFrEF). Conduction system pacing (CSP) has been proposed as an alternative to conventional BVP for HFrEF.

Cardiac resynchronization therapy (CRT) with bi-ventricular pacing (BVP) is a well-established therapy in patients with heart failure with reduced ejection fraction (HFrEF). Conduction system pacing (CSP) has been proposed as an alternative to conventional BVP for HFrEF.

Atrial fibrillation (AF) is the most common cardiac arrhythmia associated with increased risk of stroke and heart failure. AF is often asymptomatic and paroxysmal, making diagnosis challenging. Artificial intelligence (AI) applied to electrocardiogram (ECG) interpretation is a promising approach for improved diagnosis. While ECG-AI studies have shown promise, the common practice of evaluating based on data from single institutions may overestimate performance. External validation is essential to ensure AI models generalize well to diverse settings and populations.

As an intern, I was called to the bedside of a woman with rheumatic mitral regurgitation who had been given quinidine sulfate and digoxin for atrial fibrillation in hopes of restoring sinus rhythm. Her electrocardiogram after starting quinidine showed that sinus rhythm had been restored but there were repetitive, self-terminating episodes of polymorphic ventricular tachycardia lasting up to 70 seconds associated with recurrent syncope. In each episode, there was marked QT prolongation with premature ventricular contractions (PVCs) that seemed to emanate from the terminal portion of a biphasic T wave.

A 56-year-old man presented with symptomatic complete atrioventricular block and subsequently underwent dual-chamber pacemaker implantation. Following successful left bundle branch area pacing, Bachmann's bundle area pacing was performed using superior caval venous angiography -guided technique. However, no high-frequency potentials were identified and pacing at Bachmann's bundle area failed to shorten the P-wave duration compared to the baseline. Notably, high-frequency potentials were subsequently mapped in the mid-to-inferior portion of right atrial posterior wall adjacent to the interatrial septum.

An 80-year-old man with a history of right bundle branch block (RBBB), atrial fibrillation and suspected cardiac amyloidosis, underwent pacemaker implantation due to complete atrioventricular block. During an attempt at left bundle branch pacing, pacing from the right ventricular (RV) septum at the initial site demonstrated a 'QR' pattern in V11. With deeper advancement of the lead, the QR morphology persisted, but with continued prolongation of the stimulus-RWPT in V1 and abrupt shortening of stimulus-RWPT in V6, when left bundle branch capture was achieved (Figure 1A,video 1).