Resolution of cardiomyopathy after ablation of atrial flutter
Open accessAbstract
OBJECTIVES: We sought to serially assess left ventricular (LV) function before and after catheter ablation of atrial flutter (AFI). BACKGROUND: The relation of tachycardia-induced cardiomyopathy to AFI and its response to direct catheter ablation are unknown. METHODS: LV function was assessed in a series of 59 consecutive patients with successful radiofrequency ablation (RFA) of AFI before and after the procedure. Eleven patients had dilated cardiomyopathy (LV ejection fraction [LVEF] <50%) and congestive heart failure (CHF) symptoms and are the subject of this report. LV function was assessed by LVEF on two-dimensional echocardiography and functional status by New York Heart Association (NYHA) CHF classification. RESULTS: Patients were 59 +/- 8 years old, and were all male. Five patients had a preablation diagnosis of idiopathic cardiomyopathy. The preablation LVEF was 30.9 +/- 11.0% and improved to 41.3 +/- 16% (p = 0.005) when measured 7 months after successful ablation. NYHA CHF class improved from 2.6 +/- 0.5 to 1.6 +/- 0.9 (p = 0.002). Six (55%) of 11 patients had normalization of the LVEF, with complete resolution of CHF symptoms. A lower preablation LVEF and functional class predicted nonresolution of dilated cardiomyopathy (p = 0.002 and 0.001, respectively). CONCLUSIONS: Restoration of normal sinus rhythm by RFA in patients with chronic AFI and cardiomyopathy substantially improved LV function. Resolution of dilated cardiomyopathy occurred in the majority of patients. Tachycardia-induced cardiomyopathy may be a more common mechanism of LV dysfunction in patients with AFI than expected, and aggressive treatment of this arrhythmia should be considered.
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Heart failure due to tachycardiomyopathy is not an uncommon presentation of AFL when the arrhythmia is asymptomatic and sustained for weeks or months.
“Heart failure due to tachycardiomyopathy is a not an uncommon presentation of AFL when the arrhythmia is not symptomatic and sustained for weeks or months.155,156”
From European Heart Rhythm Association (EHRA) consensus document on the management of supraventricular arrhythmias, endorsed by Heart Rhythm Society (HRS), Asia-Pacific Heart Rhythm Society (APHRS), and Sociedad Latinoamericana de Estimulacion Cardiaca y Electrofisiologia (SOLAECE) (2017) · cites this paper as [155]
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- Authors
- Luchsinger, J. A., & Steinberg, J. S.
- Affiliations
- St. Luke's-Roosevelt Hospital Center (US)
- Corresponding author
- Steinberg, Jonathan S
- Venue
- Journal of the American College of Cardiology
- Publisher
- Elsevier BV
- Published
- 1998-07
- Volume
- 32
- Issue
- 1
- Pages
- 205-210
- ISSN
- 0735-1097 (ISSN-L)
- OpenAlex
- W2062316234
- Cited by
- 121
- References
- 33
- Citations by year
- 2025: 3 · 2024: 1 · 2023: 6 · 2021: 8 · 2020: 3 · 2019: 3 · 2018: 2 · 2017: 2 · 2016: 5 · 2015: 3 · 2014: 6 · 2013: 5 · 2012: 5
- FWCI
- 3.29
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of the American College of Cardiology (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac pacing and defibrillation studies
- Keywords
- atrial flutter, tachycardia-induced cardiomyopathy, radiofrequency catheter ablation, left ventricular function, left ventricular ejection fraction, dilated cardiomyopathy, congestive heart failure, sinus rhythm restoration, NYHA functional class
- MeSH terms
- Adult, Aged, Atrial Flutter, Cardiomyopathy, Dilated, Follow-Up Studies, Heart Atria, Heart Failure, Humans, Male, Middle Aged, Cardiomyopathies, Stroke Volume, Electrocardiography, Ambulatory, Ventricular Function, Left, Catheter Ablation
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