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Abstract
Patients and Methods: The material of this retrospective study included 1300 studies involving 1208 patients, who underwent electrophysiologic study & radiofrequency ablation of supraventricular tachycardia (SVT) in 15-year duration (from Jan. 1999 to Dec. 2013) at Critical Care Medicine Department, Cairo University. Data were obtained from patients{u2019} files and the following points were looked for: age, sex, history analysis, clinical examination, electrocardiogram (ECG) resting & with tachycardia, echocardiographic evidence of possible underlying heart disease, indication for electrophysiologic study (EPS) & radiofrequency (RF) ablation, EP diagnosis, result of RF ablation, detection of intra & post catheter complications and detection of recurrence, redo & their results. Results: Our study included 1300 arrhythmia patients who had EPS, out of them 1208 patients had underwent RF catheter ablation. Minimum age was 4 years and maximum age was 80 years with a mean age 36.4 ±14.62 years and 686 patients (52.8%) were male while 614 patients (47.2%) were female. Most of the patients (86.5%) were between the age of 15-60 years (group II), patients younger than 15 years were 7.2% and patients older than 60 years were 6.3%