Schach, Christian and Lavall, Daniel and Vosshage, Nicola and Koertl, Thomas and Meindl, Christine and Uecer, Ekrem and Hamer, Okka and Maier, Lars S. and Wachter, Rolf and Sossalla, Samuel (2024) Time to Recovery from Systolic Dysfunction Correlates with Left Ventricular Fibrosis in Arrhythmia-Induced Cardiomyopathy. LIFE-BASEL, 14 (3): 330. ISSN , 2075-1729
Full text not available from this repository. (Request a copy)Abstract
Background: Arrhythmia-induced cardiomyopathy (AIC) is characterized by the reversibility of left ventricular (LV) systolic dysfunction (LVSD) after rhythm restoration. This study is a cardiac magnetic resonance tomography substudy of our AIC trial with the purpose to investigate whether left ventricular fibrosis affects the time to recovery (TTR) in patients with AIC. Method: Patients with newly diagnosed and otherwise unexplainable LVSD and tachyarrhythmia were prospectively recruited. LV ejection fraction (LVEF) was measured by echocardiography at baseline and 2, 4, and 6 months after rhythm control, and stress markers were assessed. After initial rhythm control, LV fibrosis was assessed through late gadolinium enhancement (LGE). Patients were diagnosed with AIC if their LVEF improved by >= 15% (or >= 10% when LVEF reached >= 50%). Non-responders served as controls (non-AIC). Results: The LGE analysis included 39 patients, 31 of whom recovered (AIC). LV end-systolic diameters decreased and LVEF increased during follow-up. LV LGE content correlated positively with TTR (r = 0.63, p = 0.003), with less LGE favoring faster recovery, and negatively with Delta LVEF (i.e., LVEF at month 2 compared to baseline) as a marker of fast recovery (r = -0.55, p = 0.012), suggesting that LV fibrosis affects the speed of recovery. Conclusion: LV fibrosis correlated positively with the time to recovery in patients with AIC. This correlation may help in the estimation of the recovery period and in the optimization of diagnostic and therapeutic strategies for patients with AIC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ATRIAL-FIBRILLATION; HEART-FAILURE; CATHETER ABLATION; RESYNCHRONIZATION; CARDIOVERSION; atrial fibrillation; tachymyopathy; heart failure; left ventricular dysfunction; rhythm control; cardiac MRI; late gadolinium enhancement |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin II Medicine > Universitäres Herzzentrum Regensburg (UHR) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jan 2026 07:06 |
| Last Modified: | 26 Jan 2026 07:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/64069 |
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