TY - JOUR
T1 - Segmental analysis of aortic basal ring dimensions in normal and dilated tricuspid aortic roots
AU - Jelenc, Matija
AU - Jelenc, Blaz
AU - Habjan, Sara
AU - Giebels, Christian
AU - Fries, Peter
AU - Michelena, Hector I.
AU - Foley, Thomas
AU - Schcafers, Hans Joachim
N1 - Publisher Copyright:
© The Author(s) 2024. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery.
PY - 2024/3/1
Y1 - 2024/3/1
N2 - OBJECTIVES: In patients with aortic root aneurysm, the aortic basal ring is frequently dilated. It has been speculated that the muscular part of the basal ring dilates most. The purpose of this study was to analyse the segmental dilatation of the basal ring, comparing normal and dilated roots in patients with tricuspid aortic valves. METHODS: Retrospective analysis of computed tomography studies in patients with normal and dilated aortic roots was performed. Lengths of segments of the basal ring corresponding to each of the 3 sinuses, and to the muscular and fibrous parts were measured. Fractions of these segments relative to the total basal ring perimeter were calculated. RESULTS: We analysed 152 normal and 126 dilated aortic roots and 86 propensity-matched pairs. Basal ring dilatation was present in all segments of dilated aortic roots with subtle differences between the segments corresponding to the 3 sinuses. The muscular part of the basal ring dilated proportionately to its fibrous part, with no difference in fractions of measured muscular part in normal and dilated roots [42.2% (interquartile range 4.3%) vs 42.1% (interquartile range 6.3%)]. CONCLUSIONS: Basal ring dilatation was present in all segments corresponding to the 3 sinuses in dilated aortic roots. Both muscular and fibrous parts dilated equally, supporting the need to stabilize the entire basal ring when performing aortic valve repair surgery.
AB - OBJECTIVES: In patients with aortic root aneurysm, the aortic basal ring is frequently dilated. It has been speculated that the muscular part of the basal ring dilates most. The purpose of this study was to analyse the segmental dilatation of the basal ring, comparing normal and dilated roots in patients with tricuspid aortic valves. METHODS: Retrospective analysis of computed tomography studies in patients with normal and dilated aortic roots was performed. Lengths of segments of the basal ring corresponding to each of the 3 sinuses, and to the muscular and fibrous parts were measured. Fractions of these segments relative to the total basal ring perimeter were calculated. RESULTS: We analysed 152 normal and 126 dilated aortic roots and 86 propensity-matched pairs. Basal ring dilatation was present in all segments of dilated aortic roots with subtle differences between the segments corresponding to the 3 sinuses. The muscular part of the basal ring dilated proportionately to its fibrous part, with no difference in fractions of measured muscular part in normal and dilated roots [42.2% (interquartile range 4.3%) vs 42.1% (interquartile range 6.3%)]. CONCLUSIONS: Basal ring dilatation was present in all segments corresponding to the 3 sinuses in dilated aortic roots. Both muscular and fibrous parts dilated equally, supporting the need to stabilize the entire basal ring when performing aortic valve repair surgery.
KW - Aortic root dilatation
KW - Aortic valve anatomy
KW - Aortic valve annulus
KW - Computed tomography angiography
KW - Propensity score matching
KW - Tricuspid aortic valve
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U2 - 10.1093/icvts/ivae029
DO - 10.1093/icvts/ivae029
M3 - Article
AN - SCOPUS:85187657509
SN - 1569-9285
VL - 38
JO - Interdisciplinary cardiovascular and thoracic surgery
JF - Interdisciplinary cardiovascular and thoracic surgery
IS - 3
M1 - ivae029
ER -