Table 4

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/fibrillationVentricular tachycardiaDeath
Multivariate analysis (p value (risk ratio, 95% confidence limit))
Age at last palliation, per year0.001 (1.09, 1.03 to 1.16)
Aortopulmonary shunt(s) only0.008 (4.5, 1.5 to 13.8)
Follow up cardiothoracic ratio4-150 0.014 (3.46, 1.49 to 8.03)
Follow up ventricular function0.024 (3.3, 1.8 to 9.3)
Follow up NYHA class ⩾ III0.009 (3.1, 1.3 to 7.2)
Sustained ventricular tachycardia0.013 (3.9, 1.3 to 11.4)
Variables examined
Age at last palliation, yearsAortopulmonary shunt(s) onlyFollow up NYHAFollow up systolic ventricular function
SexPrevious palliation, onceFollow up haemoglobinFollow up atrioventricular valve regurgitation
Left ventricular morphologyPrevious palliation, twiceFollow up oxygen saturationPrior sustained atrial flutter/fibrillation
Isometric atrial appendagesTime from first to last palliation, yearsLate cardiothoracic ratioPrior sustained ventricular tachycardia
Mean pulmonary artery pressure, mm HgPulmonary atrioventricular malformationsSubaortic stenosis
  • 4-150 Cardiothoracic ratio was expressed in per cent (not fraction) for the purpose of data analysis.