
Is there a place for the synthetic grafts for bypass in the Buerger's disease?
This information is for the medical people who are interested in the vascular disorders.
Young man (25 yrs) complained of persistent pain on the medial side of the lower part of the left thigh. A cord like structure with 3 small nodular thickenings was palpable parallel to the course of the great saphenous vein. Initially in a he was treated as case of superficial thrombophlebitis of the great saphenous vein in private clinic near his home. But when the pain persisted even after receiving local therapies and Injection Heparin (LMWH) he is referred to the vascular surgery unit in our hospital. Duplex scan of the thigh reported it as thrombophlebitis of a vein parallel to the great saphenous vein. We continued Injection Heparin and suspected thrombophilia. The pain persisted and on further detailed examination of swelling we noted nodular swellings over a cord like structure. He did not give history of risk factors for thrombophlebitis. We considered biopsy of the cord with nodules to confirm a diagnosis. The excised cord with nodular structure was sent to histological examination. It was confirmed as “Neurofibroma” of the saphenous nerve. Post operatively the pain subsided dramatically and patient was discharged with an advice to attend the follow-up clinic. Diagnosis of small tumors of peripheral nerve at this site can be mistaken as a case of thrombophlebitis and there may be undue delay in diagnosis as we do not perform biopsy for thrombophlebitis in routine clinical practice. Unusual pain, nodular feeling of the swelling in this case helped us to consider early biopsy and excision of the tumor.
Subclavian artery aneurysm is rare. Young man (20yrs) developed right subclavian artery aneurysm after blunt injury. Aneurysm was repaired with saphenous vein but thrombosed. So, it was replaced by PTFE graft. After 3 months PTFE graft also occluded.
A sinus discharging pus formed exposing the graft. Infected PTFE graft was excised. A rim of graft was left proximally to avoid injury. Early excision of infected synthetic grafts with or with out another bypass can avoid further complications.
Glass bottle or glass piece injuries to the forearm can easily injure the radial artery which is superficial and close to the bone. The local pressure can stop the bleeding and it may result in thrombosis of the radial artery without any problems. But in some it can recanalize and later present as pseudoaneurysm ( 2-3 months) as in this case. It will be tender to touch and starts expanding after that. In this patient the ulnar artery is palpable and it is providing the major blood supply to the palm. Simple excision of the aneurysm and repair of the radial artery is required. Some times one may argue that ligation of the radial artery proximal and distal to the aneurysm may be sufficient to releive the symptoms.
Synthetic graft for replacing the diseased common femoral artery and superficial femoral artery in the groion with implantation of the profunda femoris artery.
Young smokers usually present to the vascular clinics from the rural areas with disease below the knee and above the knee. Such patients may need repair of the thigh blood vessels with poor distal runoff below the knee. One would be heistantly usin the synthetic grafts in them as there is no other alternative to the diseased veins (graft). In such cases we feel it is very important to make sure the profundafemoris branch is revascularised (with or without endarterectomy) by reimplanting it in to the synthetic graft. This will probably help also in improving the patency of the synthetic graft. This video was taken after completion of the operation where the profunda is attached to the graft ( hidden) in graft bed.
Pinjal R K '09
Tumors from the vessel walls are rare. Leiomyosarcoma from the Iliac vein wall can present as mass, deep vein thrombosis. Complete excision is the best possible treatment for them. Reconstruction of the resected is to be considered if possible. Usually these grafts may get thrombosed after some time without any problems due to the development of collateral veins. Prognosis is poor if there are metastasis to the liver and lung. Their 5 yr survival is reported to 32%. Till now less than 100 cases of leiomyosarcoma were reported from extremity veins.
We are inviting all the post graduates, nurses with special interest in the venous disorders to participate in the CME to learn more about the venous disorders. Varicose veins, DVT, Venous ulcers are still common problems in our hospitals. They are better understood and better cared in the past few years. This is helping our patients to get better relief and prevent recurrences of the venous problems with adequate therapies and preventive measures. -- Pinjala R K