ABSTRACT
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.
Subject(s)
Humans , Male , Young Adult , Cardiomyopathy, Dilated/surgery , Heart Failure/etiology , Tachycardia, Ectopic Atrial/complications , Ventricular Dysfunction, Left/surgery , Cardiomyopathy, Dilated/diagnosis , Catheter Ablation , Diagnosis, Differential , Tachycardia, Ectopic Atrial/surgeryABSTRACT
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.
Subject(s)
Cardiomyopathies/diagnosis , Cardiovascular Surgical Procedures/methods , Catheter Ablation/methods , Diagnostic Techniques, Cardiovascular , Electrocardiography , Emergency Medical Services , Female , Follow-Up Studies , Humans , Pregnancy , Pregnancy Complications, Cardiovascular/diagnosis , Prognosis , Tachycardia, Ectopic Atrial/complicationsABSTRACT
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.
Subject(s)
Catheter Ablation , Electrocardiography , Humans , Infant , Male , Tachycardia, Ectopic Atrial/complications , Ventricular Dysfunction, Left/complicationsABSTRACT
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.