Results 141 to 150 of about 48,298 (265)

Noradrenergic and cholinergic innervation of the normal human heart and changes associated with cardiomyopathy

open access: yesThe Anatomical Record, Volume 309, Issue 2, Page 417-450, February 2026.
Abstract Autonomic nerves are crucial in cardiac function and pathology. However, data on the distribution of cholinergic and noradrenergic nerves in normal and pathologic human hearts is lacking. Nonfailing donor hearts were pressure‐perfusion fixed, imaged, and dissected. Left ventricular cardiomyopathy samples were also obtained.
Peter Hanna   +16 more
wiley   +1 more source

Drug‐Resistant Sinus Tachycardia as a Dose‐Dependent Side Effect of Spironolactone: A Case Report and Review of the Literature

open access: yesClinical Case Reports, Volume 14, Issue 2, February 2026.
ABSTRACT Spironolactone is widely used for polycystic ovarian syndrome due to its anti‐androgenic properties. However, rare cardiovascular side effects may occur even in normotensive patients. We report a case of severe palpitations and drug‐resistant sinus tachycardia following high‐dose therapy, emphasizing the need for cautious titration and cardiac
Zahra Abdi   +3 more
wiley   +1 more source

Novel Echocardiographic Index for Risk Stratification of Ventricular Arrhythmias and Mortality Based on Right Ventricular Function

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Patients undergoing ICD implantation with both preprocedural echocardiography and cardiac magnetic resonance (CMR) were retrospectively analyzed to assess right ventricular (RV) function. Echocardiographic RV fractional area change (RVFAC) and the contraction pressure index (CPI), as well as CMR‐derived RV ejection fraction (RVEF), predicted ...
Toshinori Chiba   +11 more
wiley   +1 more source

Implantable Cardioverter Defibrillator [PDF]

open access: yesEuropace, 2011
S. Termosesov   +23 more
openaire   +1 more source

A Case of VF Misclassification Corrected by VF Therapy Assurance: Implications for ICD Programming

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Implantable cardioverter‐defibrillator undersensing may delay therapy in ventricular fibrillation with low‐amplitude signals. Ventricular fibrillation therapy assurance (VFTA) detected persistent VF after initial shock failure, enabling timely shock delivery and successful resuscitation.
Naoki Matsumoto   +4 more
wiley   +1 more source

Reel syndrome in a patient with an implantable cardioverter-defibrillator

open access: yesCorSalud, 2018
The Twiddler syndrome and its variant, the Reel syndrome, are uncommon complications in patients with an implantable cardioverter-defibrillator, but they can cause severe device dysfunction.
Marleny Cruz Cardentey   +4 more
doaj  

Safety and Efficacy of Pulsed Field Ablation for Atrial Fibrillation in Elderly Patients

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Pulsed‐field ablation (PFA) was evaluated in 479 patients with atrial fibrillation (AF), 52% paroxysmal. Among 104 patients > 75 years, complication rates and 6‐ and 12‐month arrhythmia‐free survival were not significantly different from younger patients. Age did not predict recurrence. PFA appears safe and effective in elderly AF patients.
Federico Follesa   +8 more
wiley   +1 more source

Ablation of Ventricular Tachycardia Using the QDOT MICRO Ablation Catheter (VT‐MICRO Study)

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Catheter ablation is useful to treat patients with ventricular tachycardia. QDOT Micro catheter is a next generation catheter designed to provide more efficient lesion creation with an accurate myocardial substrate analysis. Microelectrode mapping allows detection of higher voltage electrograms compared to standard bipolar mapping and Pentaray mapping.
Antonio Di Monaco   +6 more
wiley   +1 more source

Catheter Ablation and Device Therapy in Patients With Transthyretin Amyloid Cardiomyopathy: A Review of Non‐Pharmacological Therapy

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Transthyretin cardiomyopathy (ATTR‐CM) frequently coexists with atrial fibrillation, atrial flutter, and atrial tachycardia as well as occasionally ventricular arrhythmias and often conduction abnormalities, necessitating management for arrhythmias. Therefore, for arrhythmia specialists, the ability to diagnose ATTR‐CM and proficiency in arrhythmia ...
Hisanori Kanazawa   +12 more
wiley   +1 more source

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