There are multiple definitions:

1. left ventricular stroke diameter(English)

   • LVSV, FS
   • Cardiology, Difference based metric
   • https://doi.org…3089-017-0074-z

2. left ventricular systolic dysfunction(English)

   • CPET, EOV, HFrEF, LVDD, 6MWD, KCCQ, NYHA, ARNI, GDMT
   • Cardiology, Exercise & Training, Oxygen
   • https://doi.org…LURE.121.008970