Reversibility of tachycardiomyopathy after successful radiofrequency catheter ablation: intermediate results

Left ventricular function in patients with tachycardia induced cardiomypopathy can improve after cessation of the arrhythmia. We reported the intermediate results of 10 patients, 6 men and 4 women, with tachycardiomyopathy who successfully underwent radiofrequency catheter ablation (RFCA) for incess...

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Bibliographic Details
Published inJournal of the Medical Association of Thailand Vol. 84; no. 2; p. 258
Main Authors Raungratanaamporn, O, Bhuripanyo, K, Krittayaphong, R, Sriratanasathavorn, C, Raungratanaamporn, S, Kangkagate, C, Nademanee, K, Chaithiraphan, S
Format Journal Article
LanguageEnglish
Published Thailand 01.02.2001
Subjects
Adolescent
Adult
Cardiomyopathies - etiology
Cardiomyopathies - physiopathology
Catheter Ablation
Female
Humans
Male
Middle Aged
Tachycardia - complications
Tachycardia - physiopathology
Tachycardia - surgery
Treatment Outcome
Ventricular Function, Left
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Summary:Left ventricular function in patients with tachycardia induced cardiomypopathy can improve after cessation of the arrhythmia. We reported the intermediate results of 10 patients, 6 men and 4 women, with tachycardiomyopathy who successfully underwent radiofrequency catheter ablation (RFCA) for incessant tachycardia. Three had right atrial tachycardia, 5 ventricular tachycardia (2 and 3 from the right and left ventricles, respectively), 1 atrial flutter and 1 right accessory pathway. During the mean follow-up period of 19 months (range 11-38 months), one patient, right atrial tachycardia, had recurrence and reablation was successfully done without recurrence. Left ventricular ejection fraction, endsystolic and diastolic diameters from echocardiography gradually improved from 35 per cent, 51 and 61 mm to 58 per cent, 36 and 52 mm, respectively (p<0.001). The mean duration of reversibility was 7 months (range 1-15 months). There was no recurrence of tachycardiomyopathy after the return of left ventricular function. Conclusion, RFCA can terminate tachyarrhythmia and lead to significant improvement of left ventricular diameters and systolic function in patients with tachycardia induced cardiomyopathy.
ISSN:0125-2208