Thrombus characteristics
Thromboses evaluated were in the LEs in 93.1% (n=27) and IVC in 13.8%
(n=4); 48.1% (n=13) were left sided, 44.4% (n=12) were right sided,
and 13.8% (n=4) were bilateral. Multi-level thrombosis (involving more
than one of the following venous segments: IVC, iliac, femoral, or
popliteal) was present in 93.1% (n=27) of patients. Upon diagnosis the
thrombosis was noted to be occlusive in 93.1% (n=27) and non-occlusive
in 6.9% (n=2). Pulmonary embolism (PE) was present in 27.6% (n=8) on
initial presentation. The most common symptoms at presentation included
swelling (86.2%, n=25), pain (72.4%, n=21), and redness (20.7%, n=6)
of the affected lower extremity. The median number of days patients were
experiencing symptoms prior to DVT diagnosis was 4, with a range of 0 to
40 days. A total of 4 patients (13.8%) were diagnosed with their DVT
after experiencing symptoms for over 14 days, suggestive of subacute
thrombosis, but still underwent subsequent interventional therapy.