请能人翻译下可以吗？本人急需，但英语太差！谢谢

AHA Scientific Statement 2014：The Postthrombotic Syndrome: Evidence-Based Prevention, Diagnosis, and Treatment Strategies。

Infrainguinal Venous Obstruction

 Saphenopopliteal or Saphenotibial Bypass

Using the patent saphenous vein to bypass an occluded femoral or popliteal venous segment was initially reported by Warren and Thayer and subsequently by Husni  and others. The total number of patients reported is only 125, with follow-up ranging from 6 to 125 months. Bypass patency ranges from 50% to 97%, and clinical benefit is reported in 31% to 75%. The most contemporary series by Coleman et al  confirms a

primary patency rate of 69%; 82% experienced complete or nearly complete resolution of venous claudication; and 59%experienced healing of their ulcers.Iliofemoral Obstruction Femoro-Femoral Bypass

Palma and Esperon were the first to report autogenous fem-oro-femoral bypass using the contralateral saphenous vein in patients with unilateral iliac vein obstruction; reports from others followed.  After follow-up ranging from 6 to144 months, autogenous bypass patency ranged from 37% to 100%, and 25% to 100% had clinical improvement. Prosthetic femoro-femoral bypasses were used in patients without adequate saphenous veins.  After follow-up ranging from 1 to 123 months, patency and clinical success were 25% to

100%. Of note, reports with the best patency and clinical success had the smallest number of patients and shortest follow-up.Garg et al 149 reported 26 patients undergoing femoro-iliac/iliocaval bypass and 9 patients having femoro-caval bypass.At a median follow-up of 41 months, 53% of patients had no

or minimal swelling and no activity limitations. Ulcers were healed in 83% of patients (10 of 12 patients) at 12 months,but half recurred at a mean of 48 months. Procedure type significantly correlated with persistent postthrombotic symptoms: relative odds were 0.5 in femoro-femoral bypasses, 0 in short bypasses, 0.6 in femoro-caval bypasses, 3 in complex bypasses, and 7 in hybrid reconstructions.