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Wild-type transthyretin amyloid cardiomyopathy (ATTRwt-CM) is often accompanied by atrial fibrillation (AF), atrialflutter (AFL), and atrial tachycardia (AT), which are difficult to control because beta-blockers and antiarrhythmic drugs can worsen heart failure (HF).
ABSTRACT Background Atrial fibrillation and atrialflutter are relatively rare in young people and the incidence of thromboembolic complications is unknown. Structural heart disease (SHD) was present in 120 patients (57%) and 20 patients (10%) had a primary cardiomyopathy.
Although atrial fibrillation/atrialflutter (AFib/AFL) are common manifestations of transthyretin amyloid cardiomyopathy (ATTR-CM), a post hoc analysis of the ATTR-ACT study, published April 30 in JACC: CardioOncology, found they do not predict all-cause mortality.
Cheng and Zhang to our paper1, we note that despite ARVC being a relatively uncommon cardiomyopathy, we uniquely report on a large clinical experience with very long-term follow-up after VT ablation and confirm a high incidence of atrialflutter (AFL) and the effectiveness and low risk of catheter ablation of AFL.
Publication date: Available online 17 December 2023 Source: The American Journal of Cardiology Author(s): Hugo De Larochellière, François Brouillette, Patrick Lévesque, Nicolas Dognin, Raphaël St-Germain, Goran Rimac, Sylvain Lemay, François Philippon, Mario Sénéchal
Introduction Danon disease is an X-linked disorder caused by pathogenic variants in lysosome-associated membrane protein 2 ( LAMP2 ) gene, typically characterized by the triad of hypertrophic cardiomyopathy, myopathy, and intellectual disability. However, many patients may not present the typical presentation, especially in the early stage.
They had a history of non-ischemic cardiomyopathy (EF 30%), as well as PCI with one stent. The WCT is interrupted by a series of variable-morphology QRS complexes, with atrialflutter waves note in II, III, and aVF. The subsequent EP study could not induce VT, only atrial fibrillation.
male with pertinent past medical history including Atrial fibrillation, atrialflutter, cardiomyopathy, Pulmonary Embolism, and hypertension presented to the Emergency Department via ambulance for respiratory distress and tachycardia.
A fibrillatory wave that occurs at a rate of more than 600 beats per minute can cause fatigue in the long run, leading to atrial dilation. In all probability, this dilation is a form of atrial tachycardia and atrialcardiomyopathy. We know atrialflutters can be confined to one atrium.
The ECG was interpreted as showing atrialflutter with 2:1 conduction. The heart rate could be compatible with that of a 2:1 conducted atrialflutter. Also, lead I could give the initial impression of showing flutter waves. She presented to the emergency department after a couple of days of chest discomfort.
So this is an extremely slow atrialflutter with 2:1 conduction. Atrial rate 146, ventricular rate 73. I suspect that the amyloid slows the conduction of the atrialflutter. It turned out that he had a history of slow atrialflutter. It turns out that this patient has cardiac amyloidosis.
The Differential Diagnosis is: SVT with aberrancy(#) [AVNRT vs. WPW (also called AVRT*)] Atrialflutter with 1:1 conduction, with aberrancy VT coming from the anterior fascicle ( fascicular VT )@ *AVRT = AV Reciprocating Tachycardia (Tachycardic loop that uses both the AV node and an accessory pathway.
The absence of any wall motion abnormality makes ischemic cardiomyopathy very unlikely. There is atrial activity before every QRS, but that activity has negative polarity, so it is not sinus rhythm. The new onset cardiomyopathy was thought to be due to both drug/alcohol use and to Tachycardia-Induced Cardiomyopathy.
It is often drug-resistant and likely to occur concomitantly with tachycardia-induced cardiomyopathy, making radiofrequency catheter ablation the preferred treatment. of the patients (22/28) who received preoperative pharmacological treatment had intermittent or persistent atrial tachycardia. A total of 78.6%
Whenever I see PVCs with the morphology and axis seen in todays case I always look for signs of AC ( Arrhythmogenic Cardiomyopathy ). Arrhythmogenic cardiomyopathy often manifests with PVCs from the RV. The ECG in Figure-1 however, shows no signs of arrhythmogenic cardiomyopathy.
Possible but, again, the QRS morphology is atypical 3) AtrialFlutter with 2:1 conduction and "aberrancy". I do not see flutter wave baseline, and again the QRS morphology is not typical for a supraventricular rhythm. See this case, for example: A Relatively Narrow Complex Tachycardia at a Rate of 180.
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