The post thrombotic syndrome (PTS) refers to clinical manifestations of chronic venous
insufficiency (CVI) following a deep-vein thrombosis (DVT). PTS is the most frequent
complication of DVT, which develops in 20 to 50% of cases after proximal DVT and is severe
in 5–10% of cases. The reported prevalence of PTS differs widely among studies because of
differences in study populations, tools used to assess PTS, and time interval between acute
DVT and PTS assessment. The two most important predictors of PTS are extensive proximal …