Transverse arch hypoplasia predisposes to aneurysm formation at the repair site after patch angioplasty for coarctation of the aorta

Abstract

Aneurysm formation at the repair site is highly related to hypoplasia of the transverse arch. Sufficient catch-up growth of a hypoplastic transverse arch is rare after late patch angioplasty. Dynamic phenomena, such as flow acceleration and turbulence, originating in a narrow transverse arch, may contribute to aneurysm formation at the repair site after patch angioplasty.

Interdependencies of aortic arch secondary flow patterns, geometry, and age analysed by 4-dimensional phase contrast magnetic resonance imaging at 3 Tesla

“…Diameters were measured in cross-sectional views orthogonal to the main blood flow direction. In accordance with Bogaert et al, the AAo/DAo-ratio was calculated to normalise diameters [17].…”

Bailout stenting for critical coarctation in premature/critical/complex/early recoarcted neonates

“…It is known that stenting of the aorta may result in morphological changes of vessel wall, with good early growth but with unknown long-term effects [26]. When last seen at echocardiographic evaluation, the arches were free of aneurysm formation; however, aneurysms may form several decades after the initial coarctectomy [27]. The arch of these patients should, therefore, be followed probably lifelong to detect timely late aneurysm formation (as should any patient after coarctation repair).…”

Endovascular Covered Stent Treatment for Descending Aorta Pseudoaneurysm Following Coarctation of the Aorta Repair in an Infant

“…It is more common after patch aug- mentation of the aorta than after end-to-end anastomosis [1,2]. It is often seen in patients with aortic arch hypoplasia [3,4]. It has also been described following balloon dilatation of native coarctation of the AO [5].…”