Tachycardia-Induced Cardiomyopathy (Tachycardiomyopathy)

Mohamed, Hassan A

doi:10.4176/061226

Cited by 15 publications

(10 citation statements)

References 25 publications

(37 reference statements)

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“…Also, treating the underlying cause of tachycardia is as significant. Previous studies have also documented improvement in cardiac output and cardiopulmonary exercise testing variables of ventricular rate control, maximal oxygen uptake, and anaerobic threshold after cardioversion of atrial fibrillation back to sinus rhythm in cardiomyopathy patients [ 4 ]. However, complete recovery of ventricular function is rare.…”

Section: Discussionmentioning

confidence: 99%

“…In 1949, Phillips and Levine described an association between atrial fibrillation and reversible cardiomyopathy [ 3 ]. However, the first experimental model was first described by Whipple et al through an experimental model on ventricular systolic dysfunction in 1962 [ 4 ]. This model has been used as a foundation for further studies on this topic.…”

Section: Introductionmentioning

confidence: 99%

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Tachycardia-Induced Cardiomyopathy in a Young Adult: The Significance of Early Diagnosis and Treatment

Tolu-Akinnawo¹,

Ogwu²,

Akintunde³

et al. 2023

Cureus

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Tachycardia-induced cardiomyopathy (TIC) is gradually gaining the attention it deserves as one of the most common causes of reversible cardiomyopathy. Although TIC appears common, there has been limited data, especially among young adults. Patients with tachycardia and left ventricular dysfunction should be suspected of having TIC, with or without established etiology of heart failure, because TIC can develop by itself or contribute to cardiac dysfunction. We present a case of a previously healthy 31-year-old woman with persistent nausea and vomiting, poor oral intake, fatigue, and persistent palpitations. Vital signs at presentation were significant for tachycardia of 124 beats per minute, which she reported was similar to her baseline heart rate of 120s per minute. There were no apparent signs of volume overload at the presentation. Labs were significant for microcytic anemia with hemoglobin/hematocrit of 10.1/34.4 g/dL, and mean corpuscular volume was low at 69.4 fL; other labs were unremarkable. Transthoracic echocardiography obtained at admission was significant for mild global left ventricular hypokinesis, systolic dysfunction with an estimated left ventricular ejection fraction of 45-50%, and mild tricuspid regurgitation. Persistent tachycardia was suggested as the primary cause of cardiac dysfunction. The patient was subsequently started on guideline-directed medical therapy, including beta blockers, angiotensin-converting enzyme inhibitors, and spironolactone, with eventual normalization of the heart rate. Anemia too was also treated. Follow-up transthoracic echocardiography done four weeks after was notable for significant interval improvement in left ventricular ejection fraction of 55-60%, with a heart rate of 82 beats per minute. The case illustrates the need for early identification of TIC regardless of the patient’s age. It is essential that physicians consider it in the differential diagnosis of new-onset heart failure because prompt treatment leads to the resolution of symptoms and improvement of ventricular function.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tachycardia-Induced Cardiomyopathy in a Young Adult: The Significance of Early Diagnosis and Treatment

Tolu-Akinnawo¹,

Ogwu²,

Akintunde³

et al. 2023

Cureus

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“…Bimodal RR interval distribution can be a sign of dual atrioventricular nodal pathway physiology [6]. AF and heart failure may coexist and show bidirectional interactions, with heart failure promoting AF and AF with an uncontrolled ventricular rate leading to ventricular tachycardiomyopathy [7,8]. Moreover, preceding and pre-preceding RR interval durations seem to play a role in the left ventricular systolic function in patients with chronic AF and dilated cardiomyopathy [9].…”

Section: Introductionmentioning

confidence: 99%

Computational Simulation of Cardiac Function and Blood Flow in the Circulatory System under Continuous Flow Left Ventricular Assist Device Support during Atrial Fibrillation

Bozkurt

2020

Applied Sciences

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Prevalence of atrial fibrillation (AF) is high in heart failure patients supported by a continuous flow left ventricular assist device (CF-LVAD); however, the long term effects remain unclear. In this study, a computational model simulating effects of AF on cardiac function and blood flow for heart failure and CF-LVAD support is presented. The computational model describes left and right heart, systemic and pulmonary circulations and cerebral circulation, and utilises patient-derived RR interval series for normal sinus rhythm (SR). Moreover, AF was simulated using patient-derived unimodal and bimodal distributed RR interval series and patient specific left ventricular systolic functions. The cardiovascular system model simulated clinically-observed haemodynamic outcomes under CF-LVAD support during AF, such as reduced right ventricular ejection fraction and elevated systolic pulmonary arterial pressure. Moreover, relatively high aortic peak pressures and middle arterial peak flow rates during AF with bimodal RR interval distribution, reduced to similar levels as during normal SR and AF with unimodal RR interval distribution under CF-LVAD support. The simulation results suggest that factors such as distribution of RR intervals and systolic left ventricular function may influence haemodynamic outcome of CF-LVAD support during AF.

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“…Other causes in children includes long standing supraventricular tachycardia, burns cardiomyopathy, anomalous origin of the left coronary artery arising from the pulmonary artery and critical coarctation of the aorta. [8][9][10][11] DCM following thermal injury is rare, it has been reported in nearly 7% of children who sustained more than 70% burn injuries. 10,12 The cardiomyopathy following burns often presents weeks to months after the injury.…”

Section: Introductionmentioning

confidence: 99%

Burns Cardiomyopathy in a Nigerian Child

Animasahun¹,

Madise-Wobo²,

Gbelee³

et al. 2015

JCDR

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DCM following thermal injury is rare, it has been reported in nearly 7% of children who sustained more than 70% burn injuries. The cardiomyopathy following burns often presents weeks to months after the injury.The cause is unknown although inflammatory mediators may play an aetiologic role. The cardiomyopathy resulting from this is reversible with appropriate medical management. To the best of the authors' knowledge, there are no reported cases in African children hence we present an eight year boy in apparent sound state of health before the burns he suffered. He developed features of congestive cardiac failure due to onset of dilated cardiomyopathy secondary to the injuries suffered from burns. He was commenced on tablet enalapril, digoxin, multivitamins, aspirin and calcium tablets. He improved clinically, his ejection fraction gradually improved on echocardiography was discharged after six weeks on admission. His became symptom free remarkably and he resumed school. He has been stable on follow, the last ejection fraction on follow up one year after diagnosis was 56%.

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Tachycardia-Induced Cardiomyopathy (Tachycardiomyopathy)

Cited by 15 publications

References 25 publications

Tachycardia-Induced Cardiomyopathy in a Young Adult: The Significance of Early Diagnosis and Treatment

Tachycardia-Induced Cardiomyopathy in a Young Adult: The Significance of Early Diagnosis and Treatment

Computational Simulation of Cardiac Function and Blood Flow in the Circulatory System under Continuous Flow Left Ventricular Assist Device Support during Atrial Fibrillation

Burns Cardiomyopathy in a Nigerian Child

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