Predictors of atrial flutter/fibrillation, ventricular tachycardia, and death in patients with single ventricle physiology palliated with a cavopulmonary shunt or aortopulmonary shunt
| Atrial flutter/fibrillation | Ventricular tachycardia | Death | |
|---|---|---|---|
| Multivariate analysis (p value (risk ratio, 95% confidence limit)) | |||
| Age at last palliation, per year | 0.001 (1.09, 1.03 to 1.16) | – | – |
| Aortopulmonary shunt(s) only | 0.008 (4.5, 1.5 to 13.8) | – | – |
| Follow up cardiothoracic ratio4-150 | 0.014 (3.46, 1.49 to 8.03) | – | – |
| Follow up ventricular function | – | 0.024 (3.3, 1.8 to 9.3) | – |
| Follow up NYHA class ⩾ III | – | – | 0.009 (3.1, 1.3 to 7.2) |
| Sustained ventricular tachycardia | – | – | 0.013 (3.9, 1.3 to 11.4) |
| Variables examined | |||
| Age at last palliation, years | Aortopulmonary shunt(s) only | Follow up NYHA | Follow up systolic ventricular function |
| Sex | Previous palliation, once | Follow up haemoglobin | Follow up atrioventricular valve regurgitation |
| Left ventricular morphology | Previous palliation, twice | Follow up oxygen saturation | Prior sustained atrial flutter/fibrillation |
| Isometric atrial appendages | Time from first to last palliation, years | Late cardiothoracic ratio | Prior sustained ventricular tachycardia |
| Mean pulmonary artery pressure, mm Hg | Pulmonary atrioventricular malformations | Subaortic stenosis | |
↵4-150 Cardiothoracic ratio was expressed in per cent (not fraction) for the purpose of data analysis.