Great saphenous vein stump: a risk factor for superficial/deep venous thrombosis and an indication for prophylactic

Yasir Khan1, Muhammad Arslan Cheema1, Hafez Mohammad Ammar Abdullah2

  • 1Department of Internal Medicine, Abington - Jefferson Health, Abington, USA.

Insights

The risk of blood clots in the great saphenous vein (GSV) stump after coronary artery bypass graft (CABG) surgery is low. Further studies are needed, but routine anticoagulation for GSV stump thrombosis is not currently recommended.

Area of Science:

  • Vascular Surgery
  • Cardiology
  • Thrombosis Research

Background:

  • Great saphenous vein (GSV) grafts are utilized in coronary artery bypass grafting (CABG).
  • The GSV stump post-CABG may pose a risk for developing venous thrombosis.
  • Lower extremity swelling is a potential indicator of GSV stump complications.

Purpose of the Study:

  • To investigate the incidence of GSV stump thrombosis in patients experiencing lower extremity swelling post-CABG.
  • To assess the risk factors associated with GSV stump thrombosis.
  • To determine the necessity of prophylactic anticoagulation for GSV stump thrombosis.

Main Methods:

  • A retrospective analysis of 100 patients undergoing CABG with GSV grafting was performed.
  • Patients were monitored for seven days for saphenous vein thrombosis without prophylactic anticoagulation.
  • Risk factors and confounding variables were recorded, and duplex ultrasound was used for diagnosis.

Main Results:

  • Fourteen percent of patients developed lower extremity pain and swelling post-CABG.
  • No cases of saphenous vein thrombosis in the GSV stump were detected via duplex ultrasound in symptomatic patients.
  • The mean age of patients was 70 years, with 65% being male.

Conclusions:

  • The postoperative risk of GSV stump thrombosis extending to deep veins appears to be low.
  • Prophylactic anticoagulation for venous thromboembolism is not warranted based on these findings.
  • Further prospective studies with larger sample sizes and longer durations are recommended to confirm these results.

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