LAUSR

1007 Related aRticle by Podolec et al, see p. 1034 (0.08%)13 and CTCA (0.089%).5 The study by Po‐ dolec et al12 is one of the largest reported reg‐ istries on CAFs. In their work, they found that the left anterior descending coronary artery was the most frequent fistula ‐related artery (167; 59.2%), which was in contrast to previously pub‐ lished reports,14 but in agreement with the find‐ ings of Sercelik et al13 and Chiu et al.15 Further‐ more, they found that the pulmonary artery was the most frequent site of termination of the fis‐ tulas. Of the 261 patients with CAFs, fistulas were more frequent in women (0.12%) than men (0.07%) and patients with CAFs had lower body mass index. Several issues still require further investigation, for example, the association be‐ tween chronic obstructive pulmonary disease and congenital CAFs and higher occurrence rates in women in the current registry. It is worthwhile to encourage the authors to consider reporting the management of patients with symptomatic and asymptomatic (silent) CAFs in the registry. All these findings regarding congenital CAFs in adults raise the need for a larger prospec‐ tive multicenter international registry across all members states of the European Communi‐ ty (ie, Euro ‐CAF Registry). Collaboration among researchers, scientists, and investigators is re‐ quired to seek a funding source to initiate such a registry.