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doi:10.22028/D291-39855
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: | https://academic.oup.com/ejcts/article/58/6/1153/5899319 |
Link to this record: | urn:nbn:de:bsz:291--ds-398557 hdl:20.500.11880/35894 http://dx.doi.org/10.22028/D291-39855 |
ISSN: | 1010-7940 1873-734X |
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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