invited lectures
- British Society of Echocardiography (1999, 2004, 2005, 2008)
- Wythenshawe Intraoperative TOE Course (2004, 2005, 2006, 2007, 2008)
- Wales Echo Forum (2003, 2004)
- Cardiff-Freeman Echocardiography Course (2003, 2005, 2006, 2009, 2010, 2011, 2012, 2013, 2014, invited in 2015)
- Regional Congress of Cardiology, Timisoara, Romania (1998; 2002)
- European Society of Cardiology (1998, 2000, 2001, 2004, 2005, 2007, 2008)
- Euro Echo (every year 1996-2005 and 2007-2011)
- Welsh Cardiac Club (2000) and Club Calon (1996, 2006)