Table 1.
Clinical characteristics of patients undergoing catheter ablation
| Characteristic | Total, n=76 |
|---|---|
| Age at ablation, years (median, 25th and 75th IQR, years) |
13 (11-16) |
| Sex (M/F) | 41/35 |
| Weight, kg (average±SD) | 51.22±14.56 |
| Initial ECG findings, n (%) | |
| - Normal | 2 (2.6%) |
| - Manifest pre-excitation (WPW) | 28 (36.8%) |
| - VPB | 3 (3.9%) |
| - Narrow QRS tachycardia | 42 (55.2%) |
| O Short RP interval | 40 (52.6%) |
| O Long RP interval | 2 (2.6%) |
| - Wide QRS tachycardia | 1 (1.3%) |
| Symptoms (n, %) | |
| - Asymptomatic | 13 (17.1%) |
| - Presyncope/syncope | 2 (2.6%) |
| - Palpitation | 61 (80.2%) |
| Associated cardiac defects | |
| - ASD/PFO | 6 (7.9%) |
Values are given as count (%), median with interquartile range, or mean±SD, as appropriate.
ECG - electrocardiography; F - female; M - male; VPB - ventricular premature beat; ASD - atrial septal defect; PFO - patent foramen ovale; WPW - Wolff-Parkinson-White; SD - standard deviation; IQR - interquartile range