Two weeks after undergoing arteriography for peripheral vascular disease, a 58-year-old woman develops a continuous machinery murmur and palpable thrill at the angiography site. An arteriogram is shown.
Which of the following is most predictive of the development of an S3 heart sound in this patient?
Concurrent S4 heart sound
Contraction of RNA virus
Failure of cilostazol therapy
Presence of pallor with elevation of the limb
Size of the abnormality
