Two Cases of Deep Vein Thrombosis after Endovenous Laser Ablation for Varicose Vein with No Relation to Endovenous Heat-induced Thrombus

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  • 血管内レーザー焼灼術後にendovenous heat-induced thrombus（EHIT）とは無関係に発症した深部静脈血栓症の2 例

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Endovenous heat-induced thrombus (EHIT) is well known after endovenous laser ablation (EVLA) for varicose veins. We experienced two deep venous thrombosis (DVT) cases that caused after EVLA with no relation to EHIT. Case 1: a 52-year-old woman weighed 65 kg. We performed EVLA for her left great saphenous vein. EHIT was not found at postoperative day 1 and 7. She developed a fever caused by a cold on postoperative day 38, and her left lower limb was swelled in the next day. Since thrombi were found in her left common iliac-femoral veins by CT, she was diagnosed as DVT and was hospitalized. No pulmonary embolism (PE) was found. She received anticoagulant therapy after hospitalization, and was discharged. Case 2: a 49-year-old man weighted 95 kg. He received one-day EVLA for bilateral great saphenous veins at a vascular clinic. He developed dyspnea after he woke up on the next day of the surgery, and was transferred to our hospital by an ambulance. He was diagnosed as DVT for both lower limbs with massive PE by CT. No EHIT was found by Duplex ultrasound (DUS) examination. Fibrinolytic -anticoagulant therapy was greatly effective for him, and then he was discharged. It was considered that DVT might partially have attributed to EVLA in addition to risks of DVT including dehydration, bed rest, and obesity.

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