Please use this identifier to cite or link to this item: doi:10.22028/D291-39855
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Title: Simplified determination of commissural orientation in bicuspid aortic valves
Author(s): Froede, Lennart
Schäfers, Sebastian
Wagenpfeil, Gudrun
Raddatz, Alexander
Hoffmann, Klaus
Schäfers, Hans-Joachim
Language: English
Title: European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
Volume: 58
Issue: 6
Pages: 1153–1160
Publisher/Platform: Oxford University Press
Year of Publication: 2020
Free key words: Bicuspid aortic valve
Commissural orientation
Aortic valve repair
DDC notations: 610 Medicine and health
Publikation type: Journal Article
Abstract: In bicuspid aortic valves (BAV), commissural orientation (CO) varies between 180° and close to 120°. Postoperative CO has a strong effect on repair durability, and different repair approaches have been proposed according to CO; it is thus important for aortic repair. A precise, simple and reproducible determination by preoperative echocardiography would facilitate intraoperative decision-making. We compared 4 different methods of determination of CO in BAV.METHODS Preoperative transoesophageal echocardiograms of 62 patients with BAV were analysed. CO was measured using either the coaptation centre or the geometric centre of the root. The geometric centre of the root was determined through approximation using a circle or an ellipse, or the midpoint of a line between the centre of the non-fused and the fused sinuses. RESULTS The 3 different geometric methods led to almost identical results (interclass coefficient 0.98–0.99), with the line segment being the easiest to use. The use of the coaptation centre was associated with the underestimation of commissural angle of up to 30° compared to the geometric centre; the discrepancy was significant and most pronounced for asymmetric BAV (140–160°; P = 0.005). CONCLUSIONS CO can reproducibly be determined using a line segment between the centre of the non-fused and fused sinuses. The use of the coaptation centre can lead to misleading results, in particular in asymmetric BAVs.
DOI of the first publication: 10.1093/ejcts/ezaa230
URL of the first publication:
Link to this record: urn:nbn:de:bsz:291--ds-398557
ISSN: 1010-7940
Date of registration: 26-May-2023
Faculty: M - Medizinische Fakultät
Department: M - Chirurgie
Professorship: M - Prof. Dr. Hans Joachim Schäfers
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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