Hepatic artery embolotherapy of hepatic metastases from carcinoid tumors: value of using a mixture of cyanoacrylate and ethiodized oil

AJR. American Journal of Roentgenology
F WinkelbauerJ Lammer

Abstract

Transcatheter embolization of the hepatic arterial supply is a well-known palliative treatment of tumor deposits in the liver. We performed a prospective study to evaluate the use of a mixture of N-butyl-2-cyanoacrylate and ethiodized oil with which a permanent vascular occlusion can be obtained, as an embolizing agent for transcatheter hepatic artery embolization for treatment of carcinoid hepatic metastases. Six patients had clinical symptoms from hormonal release by carcinoid hepatic metastases as well as elevated levels of 5-hydroxyindole acetic acid (5-HIAA) in the urine. Unilobar sequential transcatheter embolization of both the hepatic artery and the segmental hepatic arteries of both lobes of the liver was performed with a mixture of N-butyl-2-cyanoacrylate and ethiodized oil. CT and CT arterial portography (CTAP) were done to assess hepatic metastases and were used to monitor follow-up. Each patient had three CTAP studies; the third CTAP, performed 3 months after complete arterial devascularization, was compared with the first CTAP to evaluate tumor size. CT studies were performed routinely every 3 months thereafter and were compared with the initial CT scan to evaluate further tumor regression or progression. Tumor de...Continue Reading

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