Supraventricular tachycardia (SVT): patient demographics, interventions and outcomes (n=250)
| Demographic/symptoms/intervention/outcome | Value |
| Age (years) | |
| Median | 8.8 |
| IQR | 3.6–12.5 |
| Range | 0–17.5 |
| Age categories (n (%)) | |
| <1 | 42 (16.8) |
| 1–5 | 45 (18.0) |
| 6–12 | 108 (43.2) |
| 13–17 | 55 (22.0) |
| Gender (n (%)) | |
| Male | 101 (40.4) |
| Female | 149 (59.6) |
| Cardiac history (n (%)) | |
| Congenital heart disease | 28 (11.2) |
| Known arrhythmia or other cardiovascular disease | 197 (78.8) |
| Ventricular pre-excitation* | 72 (32.7) |
| Triage categories (n (%)) | |
| 1 | 16 (6.4) |
| 2 | 122 (48.8) |
| 3 | 88 (35.2) |
| 4 | 22 (8.8) |
| 5 | 2 (0.8) |
| Arrival mode (n (%)) | |
| Car/walk | 156 (62.9) |
| Ambulance | 91 (36.7) |
| Helicopter | 1 (0.4) |
| Primary presenting complaint (n (%))† | |
| Palpitations | 146 (58.4) |
| Chest pain | 42 (16.8) |
| Lethargy | 36 (14.4) |
| Respiratory distress | 18 (7.2) |
| Syncope | 6 (2.4) |
| Presenting complaints (multiple possible) (n (%)) | |
| Palpitations | 157 (65.2) |
| Chest pain | 48 (20.0) |
| Lethargy | 45 (18.7) |
| Respiratory distress | 34 (14.1) |
| Dizziness | 14 (5.8) |
| Syncope | 6 (2.5) |
| Chest tightness | 6 (2.5) |
| Seizure | 1 (0.4) |
| Other | 55 (22.8) |
| SVT status on arrival (n (%)) | |
| Resolved before ED arrival | 115 (46.0) |
| Active SVT on arrival | 135 (54) |
| Interventions in ED (n (%)) | |
| Vagal manoeuvres attempted‡ | 100 (46.9) |
| Antiarrhythmic medication administered | 85 (34.0) |
| Adenosine | 82 (32.8) |
| Amiodarone | 3 (1.2) |
| Sotalol | 1 (0.4) |
| Propranolol | 1 (0.4) |
| Cardioversion | 1 (0.4) |
| Discharge destination from ED (n (%)) | |
| Discharge home | 171 (68.4) |
| Discharge to ward | 74 (29.6) |
| Discharge to PICU | 5 (2.0) |
| Length of admission (days) | |
| Median | 3 |
| IQR | 1–5 |
| Range | 0–34 |