RESUMO
Tachycardiomyopathy is a potentially reversible cause of heart failure. It can be induced by supraventricular or ventricular arrhythmias. When these are treated, systolic function improves or normalizes. We report a 20year-old male with deterioration of left ventricular function and dilated cardiomyopathy secondary to an incessant atrial tachycardia that was treated with radiofrequency catheter ablation. After the procedure, the patient experienced a significant improvement of his ventricular function.
Assuntos
Humanos , Masculino , Adulto Jovem , Cardiomiopatia Dilatada/cirurgia , Insuficiência Cardíaca/etiologia , Taquicardia Atrial Ectópica/complicações , Disfunção Ventricular Esquerda/cirurgia , Cardiomiopatia Dilatada/diagnóstico , Ablação por Cateter , Diagnóstico Diferencial , Taquicardia Atrial Ectópica/cirurgiaRESUMO
A young primiparous lady presented with drug-refractory atrial tachycardia which had led to cardiomyopathy. Three attempts with electrical cardioversion were also unsuccessful. She was rescued by radiofrequency ablation.
Assuntos
Cardiomiopatias/diagnóstico , Procedimentos Cirúrgicos Cardiovasculares/métodos , Ablação por Cateter/métodos , Técnicas de Diagnóstico Cardiovascular , Eletrocardiografia , Serviços Médicos de Emergência , Feminino , Seguimentos , Humanos , Gravidez , Complicações Cardiovasculares na Gravidez/diagnóstico , Prognóstico , Taquicardia Atrial Ectópica/complicaçõesRESUMO
Ectopic automatic atrial tachycardia, an uncommon type of supraventricular tachycardia in children and adults, has been reported to be resistant to medical therapy unlike reentrant supraventricular tachycardia. We report a case of incessant atrial tachycardia in an infant, which was successfully treated with radiofrequency catheter ablation.
Assuntos
Ablação por Cateter , Eletrocardiografia , Humanos , Lactente , Masculino , Taquicardia Atrial Ectópica/complicações , Disfunção Ventricular Esquerda/complicaçõesRESUMO
The dilated cardiomyopathies are characterized by an increase in left ventricular internal dimensions without an appropriate increase in ventricular wall thickness. Sustained tachyarrhythmia, either supraventricular or ventricular, may be associated with this condition and may improve after termination of the tachycardia. We report a case of secondary dilated cardiomyopathy caused by incessant atrial tachycardia who underwent successful radiofrequency catheter ablation and left ventricle returned to normal size and function in six months post ablation.