Arrhythmias in Patients on Maintenance Dialysis: A Cross-sectional Study

ConclusionsArrhythmias, including clinically significant abnormal rhythms, were common. Tachyarrhythmias were more frequent during dialysis and the immediate postdialytic period. The relevance of these findings to clinical outcomes requires additional study.
Source: American Journal of Kidney Diseases - Category: Urology & Nephrology Source Type: research

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This study included 302 consecutive patients with a dual-chamber pacemaker. A total of 1024 EGMs stored in pacemakers as ventricular high-rate episodes were analyzed. The definition of NSVT was ≥ 5 consecutive ventricular beats at ≥ 150 bpm lasting
Source: International Heart Journal - Category: Cardiology Tags: Int Heart J Source Type: research
Abstract Many widely used medications may cause or exacerbate a variety of arrhythmias. Numerous antiarrhythmic agents, antimicrobial drugs, psychotropic medications, and methadone, as well as a growing list of drugs from other therapeutic classes (neurological drugs, anticancer agents, and many others), can prolong the QT interval and provoke torsades de pointes. Perhaps less familiar to clinicians is the fact that drugs can also trigger other arrhythmias, including bradyarrhythmias, atrial fibrillation/atrial flutter, atrial tachycardia, atrioventricular nodal reentrant tachycardia, monomorphic ventricular tachy...
Source: Circulation - Category: Cardiology Authors: Tags: Circulation Source Type: research
AbstractAimsExcessive activation of Ca/calmodulin ‐dependent kinase II (CaMKII) is of critical importance in heart failure (HF) and atrial fibrillation. Unfortunately, lack of selectivity, specificity, and bioavailability have slowed down development of inhibitors for clinical use. We investigated a novel CaMKIIδ/CaMKIIɣ‐selective, ATP‐comp etitive, orally available CaMKII inhibitor (RA608) on right atrial biopsies of 119 patients undergoing heart surgery. Furthermore, we evaluated its oral efficacy to prevent deterioration of HF in mice after transverse aortic constriction (TAC).Methods and resultsIn human at...
Source: ESC Heart Failure - Category: Cardiology Authors: Tags: Original Research Article Source Type: research
Abstract BACKGROUND: Cardiac catheterization is among the most performed medical procedures in the modern era. There were sporadic reports indicating that cardiac arrhythmias are common during cardiac catheterization, and there are risks of developing serious and potentially life-threatening arrhythmias, such as sustained ventricular tachycardia (VT), ventricular fibrillation (VF) and high-grade conduction disturbances such as complete heart block (CHB), requiring immediate interventions. However, there is lack of systematic overview of these conditions. AIM: To systematically review existing literature and g...
Source: World Journal of Cardiology - Category: Cardiology Authors: Tags: World J Cardiol Source Type: research
Conclusions: The authors’ results show that hand operations using WALANT technique in patients with no history of arrhythmia are safe and are not arrhythmogenic; therefore, there is no need for routine perioperative continuous electrocardiographic monitoring. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, II.
Source: Plastic and Reconstructive Surgery - Category: Cosmetic Surgery Tags: Hand/Peripheral Nerve: Original Articles Source Type: research
ConclusionsIn this global survey of>  1100 EP professionals regarding hospitalized COVID-19 patients, a variety of arrhythmic manifestations were observed, ranging from benign to potentially life-threatening. Observed adverse events related to use of HCQ + AZM included prolonged QTc requiring drug discontinuation as well as Torsade d e Pointes. Large prospective studies to better define arrhythmic manifestations as well as the safety of treatment strategies in COVID-19 patients are warranted.
Source: Journal of Interventional Cardiac Electrophysiology - Category: Cardiology Source Type: research
Abstract Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are expressed as four different isoforms (HCN1-4) in the heart and in the central and peripheral nervous systems. In the voltage range of activation, HCN channels carry an inward current mediated by Na+ and K+, termed If in the heart and Ih in neurons. Altered function of HCN channels, mainly HCN4, is associated with sinus node dysfunction and other arrhythmias such as atrial fibrillation, ventricular tachycardia, and atrioventricular block. In recent years, several data have also shown that dysfunctional HCN channels, in particular HCN1, ...
Source: Pflugers Archiv : European Journal of Physiology - Category: Physiology Authors: Tags: Pflugers Arch Source Type: research
Conclusion: BA was successful in patients with AFL and septal VT resistant to standard ablation. Relapses of clinical arrhythmia are rare; however, long-term follow-up is complicated by recurrences of different arrhythmias related to complex arrhythmogenic substrate
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Trial/Experimental Study Source Type: research
p.p1 {margin: 0.1px 0.0px 0.1px 0.1px; font: 9.0px Helvetica}An elderly woman with history of coronary disease presented with CP and SOB and hypotension by EMS.  EMS had attempted adenosine x 2 without success.Here is her ED ECG:Here is the ED physician's interpretation:IMPRESSIONUNCERTAIN REGULAR RHYTHM, wide complex tachycardia, likely p-waves.LEFT BUNDLE BRANCH BLOCK [120+ ms QRS DURATION, 80+ ms Q/S IN V1/V2, 85+ ms R IN I/aVL/V5/V6]Comparison Summary: LBBB and tachycardia are new.What do you think?Smith:  This is indeed a regular wide complex tachycardia.  I do not see P-waves.  Retrograde P-w...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
Most common sustained post-operative arrhythmia – MCQ Most common sustained post-operative arrhythmia: a) Atrial tachycardia b) Atrial fibrillation c) Ventricular tachycardia d) Ventricular fibrillation Post your answer as a comment below
Source: Cardiophile MD - Category: Cardiology Authors: Tags: Medicine MCQ - CVS Source Type: blogs
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