RT Journal Article SR Electronic T1 Rupture of a papillary muscle of the tricuspid valve. Echocardiographic diagnosis. JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 291 OP 293 DO 10.1136/hrt.48.3.291 VO 48 IS 3 A1 R M Donaldson A1 M Ballester A1 A F Rickards YR 1982 UL http://heart.bmj.com/content/48/3/291.abstract AB Abnormal tricuspid valve structure and motion resulting from the rupture of a right ventricular papillary muscle were visualised by two dimensional echocardiography. These findings were confirmed at operation. Two dimensional echocardiography appears to be a satisfactory method for evaluating patients with tricuspid regurgitation of sudden onset with a view to surgery.