| - Member, German Society of Thorax, Heart and Vascular Surgery |
| - Member, German Society of Cardiology |
| - Member, American Association of Thoracic Surgery |
| - Member, European Association of Cardiothoracic Surgeons |
| - Member, European Society of Cardiology |
| - Member, Association for Academic Surgery |
| - Member, Society of Thoracic Surgeons |
| - Member and Past President, Heart Valve Society |
| - Member, Canadian Cardiovascular Society |
| - Member, American Heart Association |
| - Licentiate, Medical Council of Canada |
| - Fellow, Royal College of Physicians and Surgeons of Canada |
| - Fellow, American College of Surgeons |
- Member, International Society of Heart and Lung Transplantation |
| Notable Positions within Societies: |
| American College of Cardiology |
| March 1, 2015 present Surgeons Section Leadership Council, Member |
| European Association of Cardiothoracic Surgery: |
| Oct 1, 2011 Aug 1, 2014 TechnoCollege Organizing Committee, Member |
| Jan 1, 2012 Aug 1, 2014 Vascular Domain, Member |
| European Society of Cardiology: |
| Oct 1, 2008 Aug 1, 2014 Nucleus Committee of Working Group on Cardiovascular Surgery, Member |
| Aug 31, 2010 Aug 1, 2012 ESC Guidelines Writing Committee for the Management of AMI-STEMI, Member |
| Aug 31, 2010 Aug 1, 2012 ESC / EACTS Guidelines Writing Committee for the Management of Valvular Heart Disease, Subsection Editor |
| Aug 31, 2012 Aug 1, 2014 Nucleus Committee of Working Group for Cardiovascular Surgery, Vice-Chairman |
| Aug 31, 2012 Aug 1, 2014 ESC Guidelines Writing Committee on Hypertrophic Cardiomyopathy, Member |
| Dec 17, 2013 Aug 1, 2015 ESC Guidelines Writing Committee on Acute Coronary Syndrome / NSTEMI, Member |
| Heart Valve Society (formed from the union of the Society of Heart Valve Disease and the Heart Valve Society of America): |
| Sept, 2014 May, 2015 President |
| Sept, 2014 present Program Committee Member |
| May, 2015 present Past-President |
| Society of Heart Valve Disease: |
| Aug, 2009 May, 2015 Executive Council, Councilor |
| Jun, 2011 May, 2014 Biennial Meeting Program Committee, Chair |