Case analysis of tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children.
JY, S., Y, W., YX, L., BB, X., JX, Z., & P, S. (2026). Case analysis of tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children.. The Journal of international medical research. https://doi.org/10.1177/03000605261458551
JY S, Y W, YX L, BB X, JX Z, P S. Case analysis of tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children.. The Journal of international medical research. 2026; doi: 10.1177/03000605261458551
JY S, Y W, YX L, et al. Case analysis of tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children.[J]. The Journal of international medical research. 2026. DOI: 10.1177/03000605261458551.
@article{jy2026,
author = {Song JY and Wei Y and Li YX and Xu BB and Zhang JX and Su P},
title = {Case analysis of tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children.},
journal = {The Journal of international medical research},
year = {2026},
doi = {10.1177/03000605261458551},
note = {PMID: 42506924},
}
TY - JOUR AU - Song JY AU - Wei Y AU - Li YX AU - Xu BB AU - Zhang JX AU - Su P TI - Case analysis of tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children. T2 - The Journal of international medical research PY - 2026 DO - 10.1177/03000605261458551 AN - PMID:42506924 ER -
Tachycardia-induced cardiomyopathy secondary to persistent tachycardia in children is a distinct form of cardiomyopathy caused by sustained or frequent tachyarrhythmias. It is characterized by cardiac enlargement, impaired cardiac function, and heart failure and is clinically reversible with early and standardized treatment. Herein, we report a challenging pediatric case presenting with recurrent intermittent dyspnea and palpitations for 1 year. The final diagnoses were as follows: (a) paroxysmal atrial tachycardia and (b) tachycardia-induced cardiomyopathy. Under the guidance of a three-dimensional electroanatomical mapping system, an intracardiac electrophysiological study accurately localized the focal atrial tachycardia to the posterior margin of the right upper pulmonary vein, followed by successful radiofrequency ablation. The patient's clinical symptoms improved significantly postoperatively, and the patient was discharged uneventfully. During the 8-month follow-up period, no recurrence of atrial tachycardia was documented. Follow-up echocardiography confirmed normalization of cardiac dimensions and function.