Aortic valve visualization and pressurization device: a novel device for intraoperative evaluation of aortic valve repair procedures.

Autor:	Arabkhani B; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands., Sandker SC; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands., Braun J; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands., Hjortnaes J; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands., van Brakel TJ; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands., Koolbergen DR; Department of Cardiothoracic surgery, Amsterdam UMC, Amsterdam, Netherlands., Klautz RJM; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands.; Department of Cardiothoracic surgery, Amsterdam UMC, Amsterdam, Netherlands., Hazekamp MG; Department of Cardiothoracic surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands.
Jazyk:	angličtina
Zdroj:	European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery [Eur J Cardiothorac Surg] 2023 Nov 01; Vol. 64 (5).
DOI:	10.1093/ejcts/ezad291
Abstrakt:	Objectives: Aortic valve repair procedures are technically challenging, and current intraoperative evaluation methods often fail to predict the final echocardiographic result. We have developed a novel intraoperative aortic valve visualization and pressurization (AVP) device, enabling valve inspection under physiological conditions, and measuring aortic valve insufficiency (AI) during cardioplegic arrest. Methods: The AVP device is attached to the (neo)aorta, after any type of aortic valve repair, while the heart is arrested. The root is pressurized (60-80 mmHg) using a saline solution and an endoscope is introduced. The valve is inspected, and the amount of valvular leakage is measured. Postoperative 'gold standard' transesophageal echocardiogram measurements of AI are performed and compared against regurgitation volume measured. Results: In 24 patients undergoing valve-sparing root replacement, the AVP device was used. In 22 patients, postoperative echocardiographic AI was ≤ grade 1. The median leakage was 90 ml/min, IQR 60-120 ml/min. In 3 patients, additional adjustments after visual inspection was performed. In 2 patients, with complex anatomy, the valve was replaced. In one, after evaluation with the device, there was undesirable result visually and residual AI of 330 ml/min, and in another, 260 ml/min residual AI was measured and valve restriction on visual inspection. Conclusions: The novel AVP device enables intraoperative evaluation of the valve under physiological conditions, while still on arrested heart, and allows for targeted adjustments. The AVP device can be an important aid for intraoperative evaluation of the aortic valve, during valve repair and valve-sparing procedures, thereby making the operative result more predictable and the operation more efficient. (© The Author(s) 2023. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery.)
Databáze:	MEDLINE
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