AF is a heterogeneous rhythm disorder that is related to a wide spectrum of etiologies and has broad clinical presentations. Mechanisms underlying AF are complex and remain incompletely understood ...

8,9 IHM pressures are PAPs; however, in patients with FC, PAPs are equal to the pressures in the superior and inferior vena cavae and Fontan conduit in the absence of any obstruction (Figure 1).

4 Division of Genetics, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts, USA Correspondence to Dr Terence Prendiville, Department of Cardiology, Boston Children's Hospital, ...