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  • Title: Supplemental transcatheter arterial chemoembolization through a collateral omental artery: treatment for hepatocellular carcinoma.
    Author: Won JY, Lee DY, Lee JT, Park SI, Kim MJ, Yoo HS, Suh SH, Park SJ.
    Journal: Cardiovasc Intervent Radiol; 2003; 26(2):136-40. PubMed ID: 12638036.
    Abstract:
    PURPOSE: To evaluate the therapeutic efficacy and safety of supplemental transcatheter arterial chemoembolization (TACE) through the extrahepatic collateral omental artery (OA) for the treatment of hepatocellular carcinoma (HCC). METHODS: We studied 21 patients with extrahepatic collaterals of the OA, among 1,512 patients with HCC who had undergone angiography. HCCs supplied by collateral OAs were located at: segment IV in seven, segment V in five, segment III in three, segment VI in three and segment VIII in three patients (Couinaud classification of segments). On preoperative CT scans, every HCC was abutting the liver surface. Adjacent omental infiltration or engorgement was noted in 11 patients. Celiac and hepatic arteriograms showed hypertrophy of the feeding OA in all patients. TACE of the OA was performed in 19 patients with an emulsion of iodized oil and doxorubicin hydrochloride. Embolization with gelatin sponge particles was added in five patients. RESULTS: Collaterals of the OA to the HCC were found on the first to seventeenth sessions of TACE. On follow-up CT scans, five patients showed complete uptake of iodized oil in the tumor. Partial uptake of iodized oil was noted in 13 patients and no uptake in one patient. There was no serious complication that related to the omental embolization, such as omental or bowel ischemia. The cumulative survival rates from the time of the TACE of the OA were 81% at 6 months and 68% at 12 months. CONCLUSION: TACE of the OA is safe and has a potential therapeutic effect in the treatment of HCC.
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