Tehran University of Medical Sciences The Research in Heart Yield and Translational Medicine (RHYTHM) 3115-7270 9 3 2015 10 11 137 139 EN Ahmet Baris-Durukan Medicana International Ankara Hospital, Ankara, Turkey. Fatih Tanzer-Serter Medicana International Ankara Hospital, Ankara, Turkey. Hasan Alper-Gurbuz Medicana International Ankara Hospital, Ankara, Turkey. Murat Tavlasoglu Diyarbakir Military Hospital, Diyarbakir, Turkey. Halil Ibrahim-Ucar Medicana International Ankara Hospital, Ankara, Turkey. Cem Yorgancioglu Medicana International Ankara Hospital, Ankara, Turkey. 2015 10 11 2015 10 11 Atrioventricular groove rupture is a rare, albeit mortal, complication following mitral valve surgery. Avoidance is the best strategy but it cannot fully prevent the occurrence of this complication. Several repair techniques have been described with varying success rates; however, the rarity of the complication precludes consensus about the safest technique. Here we report two cases of posterior atrioventricular groove rupture. Both cases were diagnosed immediately after the cessation of cardiopulmonary bypass. Repair was performed successfully with a technique involving the use of biological glue. The postoperative course was uneventful for both of them. Both cases are well with normally functioning mitral prostheses; one with a follow-up time of 5.5 years and the other 10 months. We believe that the glue provides additional hemostasis and support to the repaired area. https://rhythm.tums.ac.ir/index.php/jthc/article/view/344 https://rhythm.tums.ac.ir/index.php/jthc/article/download/344/337