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Mashup Score: 8Catheter Ablation in a Geriatric Case Presenting Idiopathic Ventricular Fibrillation Initiated by Purkinje-Related Premature Ventricular Contractions - 2 month(s) ago
Ventricular fibrillation (VF) with no obvious heart disease, as determined by echocardiography, catheterization, or magnetic resonance imaging, termed idiopathic VF, accounts for approximately 10% of cases of aborted sudden cardiac death.1 Among them, Brugada syndrome or J-wave syndrome is recognized as subepicardial cardiomyopathy with distinctive electrocardiographic characteristics.2
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Mashup Score: 5Navigating the diagnostic challenges of the accessory pathway: Participant or bystander? - 2 month(s) ago
Atrioventricular (AV) nodal reentrant tachycardia, or AVNRT, is the most common form of paroxysmal supraventricular tachycardia (SVT) in the presence of dual AV nodal physiology.1 On the other hand, Wolff-Parkinson-White syndrome leads to AV reentrant tachycardia characterized by an accessory pathway in conjunction with the normal conduction system.2 This case explores the intricacies of distinguishing between these conditions, especially when they coexist within the same patient. In this case report, we present a patient with AVNRT and a bystander accessory pathway initially, followed by orthodromic reciprocating tachycardia (ORT) with the accessory pathway actively participating in the SVT.
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Mashup Score: 2
Dual atrioventricular node nonreentrant tachycardia (DAVNNRT) is an uncommon and often misdiagnosed arrhythmia reported in patients without congenital heart disease (CHD), leaving some patients with troublesome palpitations while causing tachycardia-induced cardiomyopathy in others.1,2 DAVNNRT results from unusual downstream conduction of consecutive sinus beats via multiple pathways into the atrioventricular (AV) node; each sinus impulse first penetrates the AV node via the “fast pathway” (FP), followed by an impulse from the same sinus beat conducting via the “slow pathway” (SP).
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Mashup Score: 11Extraction of a misplaced left ventricular pacing lead with complete embolic cerebral protection and intracardiac echocardiography visualization - 2 month(s) ago
Misplacement of pacing leads in the left ventricle (LV) is rare and is associated with embolic complications. We present a case of extraction of a left ventricular lead using continuous intracardiac echocardiography visualization and complete encephalic circulation protection with 2 transcatheter cerebral embolic protection devices.
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Mashup Score: 3Repetitive ineffective shock delivery with max 6 joules of a wearable defibrillator during ventricular fibrillation with lethal consequences - 2 month(s) ago
Despite the high rate of sudden death after myocardial infarction among patients with a low ejection fraction, implantable cardioverter-defibrillators (ICD) are contraindicated until 40–90 days after myocardial infarction.1,2 To fill this potentially dangerous gap, the wearable defibrillator is an available option. Wearable defibrillators have been shown to reduce mortality in patients with a recent myocardial infarction and a left ventricular ejection fraction of 35% or less.3–6
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Mashup Score: 2Duodromic tachycardia: A case report of a rare presentation of wide complex supraventricular tachycardia - 2 month(s) ago
Atrioventricular reentrant tachycardia (AVRT) requires an antegrade and retrograde limb to facilitate tachycardia. In most cases, this involves the atrioventricular (AV) node, which commonly serves as the antegrade limb, but can participate in either limb. Less commonly, reentry uses 2 separate accessory pathways (APs) with distinct conductive properties, without participation from the AV node.
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Mashup Score: 6Atrial fibrillation ablation with evidence of electrical conduction through the left atrial band: A case report - 2 month(s) ago
A left atrial band is a congenital anomaly with an incidence of 2% based on autopsy studies.1 However, based on transesophageal echocardiography (TEE), only 1 case of a left atrial band was reported from more than 20,000 examinations in the past 20 years.2 A left atrial band, composed of fibromuscular tissue, connects the left atrial side of the fossa ovalis to other areas of the left atrium.1 An additional association between the left atrial band and presence of a patent foramen ovale and Chiari network has been reported, and an increased incidence of premature atrial complexes has also been observed.
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Mashup Score: 15Automatic pacing output optimization system causes pacing failure: Two case reports - 2 month(s) ago
The automatic pacing threshold measurement and output adjustment function, ie, ventricular capture management (VCM; Medtronic, Minneapolis, MN), is found in almost all permanent pacemakers, as it ensures patient safety during unexpected increases in threshold as well as reduces battery consumption and frequency of generator replacement.1–4 As surgeries for pacemaker generator replacement may result in complications such as lead fracture or infection, the automatic adjustment system benefits patients with a pacemaker; however, this system may also fail.
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Mashup Score: 18Pitfalls of the AdaptivCRT algorithm for effective pacing: Optimization using the EffectivCRT algorithm data - 2 month(s) ago
The adaptivCRT (aCRT) algorithm was developed to provide continuous optimization and synchronized left ventricular (LV) pacing to right ventricular (RV) sensing.1–3 It is effective in patients with normal atrioventricular (AV) conduction, and a higher percentage of synchronized LV (sLV) pacing is associated with superior clinical outcomes.4,5
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Mashup Score: 15Atrial overdrive pacing during right bundle branch tachycardia: What is the mechanism? - 2 month(s) ago
The differential diagnosis for wide complex tachycardia with right bundle branch morphology includes supraventricular tachycardia with aberrancy, pre-excited tachycardia, and ventricular tachycardia (VT). We present a case of a patient with right bundle branch tachycardia who underwent an electrophysiology study.
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Catheter Ablation in a Geriatric Case Presenting Idiopathic Ventricular Fibrillation Initiated by Purkinje-Related Premature Ventricular Contractions https://t.co/AREp6ioAp2 https://t.co/jgRKjAEcAg