Mitral Annulus Calcium Score and Adverse Outcomes in Mitral Valve Surgery

author.DisplayName ¹ author.DisplayName ^1,3 author.DisplayName ^2,3,4,5 author.DisplayName ^2,3,4 author.DisplayName ^2,3 author.DisplayName ^2,3

¹Imaging Department, The Baruch Padeh Medical Center, Poriya, Israel
²Cardiological Department, The Baruch Padeh Medical Center, Poriya, Israel
³The Azrieli Faculty of Medicine, Bar-Ilan University, Israel
⁴Cardiothoracic Surgery, The Baruch Padeh Medical Center, Poriya, Israel
⁵Department of Cardiac Surgery, Sheba Medical Center, Israel

PURPOSE: Mitral annulus calcification (MAC) is a recognized risk factor for short term and long term adverse outcomes in mitral valve surgery including length of surgey, on pump time, embolic events and death. It is usually assessed by echocardiography and it presence reported dichotomously. In new computerized tomographic tools it may be quantified. There are no previous reports regarding MAC quantification and site regarding surgical outcomes. We aim to map and quantify MAC and assess its relation to outcomes in mitral valve surgery.

MATERIAL AND METHODS: 66 consequitive patients undergoing Mitral valve surgery between 5-2015 and 5-2018 had a chest CT scan prospectively done pre-opertively. CT scans will be reviewed and MAC mapped and quantified using Philips Portal Cardiac CT Viewer.

RESULTS: Coronary and aortic calcium scores will be quantified. Findings wil be correlated with pump time, major and minor embolic events, length of stay and death.

CONCLUSION: The results may help understand the risk of MAC that should be added to the standard pre-operative risk scores. It may set a cut off or site of MAC that would be prohibitive of mitral surgery.