Del Nido versus Bretschneider HTK cardioplegia in adult aortic valve replacement: early clinical outcomes from a randomised trial - Brzeska, Barbara; Karolak, Wojciech; Żelechowski, Paweł; Łoś, Andrzej; Ulatowski, Nikodem; Pawlaczyk, Rafał (Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery, 2026)