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  • Title: [Percutaneous laser ablation in the treatment of portal vein tumor thrombus in 93 hepatocellular carcinoma patients].
    Author: Lu ZH, Shen F, Yuan GX, Shi LH, Zong M, Yang JH, Guo J, Wu MC.
    Journal: Zhonghua Zhong Liu Za Zhi; 2007 Jun; 29(6):449-52. PubMed ID: 17974281.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of percutaneous laser ablation (LA) in the treatment for portal vein tumor thrombus (PVTT) of hepatocellular carcinoma (HCC). METHODS: The PVTT of HCC patients were treated through percutaneous transhepatic laser ablation (PTLA). The survival rate, thrombus size, blood flow of embolized portal vein by thrombus, liver function, ascites and clinical presentation were observed. RESULTS: The 6-month, 1-year and 2-year survival rate of these 93 patients were 82.8%, 53.0% and 34.1%, respectively. In 11 patients with partially occluded portal vein by PVTT, the cut-surface of the PVTT diminished significantly 6 months after LA. The color blood stream signal was seen again one day after LA in all of the other 82 patients with totally occluded portal vein by thrombus, and it could still be seen in 67 of those one month later, 57 (of 71) 3 months later, 40 (of 57) 6 months later, 27 (of 32) 1 year and 4 (of 6) 2 years later after LA. In the 38 patients who survived over 1 year, PVTT was gradually atrophied and disappeared eventually in 14, PVTT was atrophied and the portal vein changed into honeycomb-like appearance in 14. In the remaining 10 patients, PVTT continued to grow and made the portal vein enlarged. It was also observed that liver function, clinical symptom and ascites were improved in various degree after LA. CONCLUSION: Percutaneous laser ablation might be an effective and safe treatment method for controlling portal vein tumor thrombus of hepatocellular carcinoma.
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