98%
921
2 minutes
20
A gentleman in his 80s presented to the hospital with several hours of ongoing, dull-aching chest pain radiating to his left arm. The initial electrocardiogram (ECG) showed atrial fibrillation (AF), bifascicular block (right bundle branch block (RBBB) and left anterior fascicular block), and concordant 0.5 mm ST-segment elevation in leads V1-V3. The repeated ECGs at one-hour and three-hour intervals showed similar findings. The initial high-sensitivity troponin (HS-troponin) level was 2672.7 ng/L. He was triaged as non-ST-segment elevation acute coronary syndrome (NSTE-ACS). However, his ECGs repeated on the next day showed AF, bifascicular block, and ST-segment elevation in leads V2-V4, I, and augmented vector left (aVL) alongside a significant troponin surge to 25,951 ng/L. The emergency coronary angiogram uncovered severe coronary artery disease that warranted percutaneous coronary intervention (PCI).
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12267590 | PMC |
http://dx.doi.org/10.7759/cureus.86103 | DOI Listing |
J Cardiothorac Vasc Anesth
August 2025
Department of Anesthesiology, The Ohio State University Wexner Medical Center, Columbus, OH.
Heart Rhythm
September 2025
Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Bronx, NY, USA.
Background: During left bundle branch area pacing (LBBAP), several markers of electrical synchrony, (V6 R-wave peak time (RWPT), aVL-RWPT, and the V6-V1 interpeak interval), are commonly used to assess left bundle branch (LBB) capture. Nevertheless, the relationship between these electrocardiographic (ECG) measurements and mechanical synchrony remains poorly understood.
Objective: We aimed to analyze the association between electrical parameters from the paced QRS complex and mechanical performance assessed through 2D strain and myocardial work (MW) indices, following LBBAP implantation.
Heart Rhythm
September 2025
Electrophysiology Unit. Cardiovascular Division. Hospital del Mar. Passeig Maritim de la Barceloneta. Barcelona. Spain; Department of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Spain.
Ann Noninvasive Electrocardiol
September 2025
Azrieli Faculty of Medicine Bar Ilan University, Safed, Israel.
Objective: To investigate two conditions that have been poorly investigated in the medical literature before in the context of atrial fibrillation: the coexistence and association of right or left bundle branch block and axis deviation in patients with permanent atrial fibrillation compared to the control group of healthy subjects with sinus rhythm.
Material And Methods: We conducted an analytic, retrospective observational study performed at Ziv Medical Center, Safed, Israel, collecting data from medical history records of all patients that have been diagnosed with permanent atrial fibrillation versus healthy controlled patients with normal sinus rhythm. We analyzed their ECGs in order to assess the presence of any bundle branch block and/or axis deviation.