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Management of End Hole in Placement of Port-Catheter System for Continuous Hepatic Arterial Infusion Chemotherapy Using the Fixed Catheter Tip Method

Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566, Japan.

OBJECTIVE. The purpose of our study was to compare persistent hepatofugal blood flow in the gastroduodenal artery after implanting a port-catheter system for repeated hepatic arterial infusion chemotherapy using either the original or the modified fixed catheter tip method. With the original method the lumen of the catheter tip is closed with a microcoil; with the modified method it is left open. Persistent hepatofugal blood flow can induce reactive gastric or duodenal mucosal lesions.

MATERIALS AND METHODS. A port-catheter system with the catheter tip fixed to the gastroduodenal artery by embolic agents was percutaneously implanted in 156 patients (102 men, 54 women; mean age, 63.2 years) with unresectable liver cancer. In 98 patients the original method was used, and in 58 patients the modified method was used. Existence of persistent blood flow beyond the indwelling catheter tip as shown on arteriography via the port performed immediately and 2-10 days after port-catheter placement was compared between these two groups.

RESULTS. In all cases, percutaneous port-catheter placement was successfully performed. In one (1.0%) of 98 procedures involving the original method, the gastroduodenal artery was detected on arteriography just after implantation, compared with 23 (39.7%) of 58 procedures using the modified method. However, arteriography performed 2-10 days (mean, 5.02 days) after implantation detected the gastroduodenal artery in only one case.

CONCLUSION. This retrospective study indicates that closure of the end hole appears to occur spontaneously shortly after implantation. Thus, such closure is not always necessary to avoid persistent hepatofugal blood flow in the gastroduodenal artery.

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				H. Seki, T. Ozaki, and M. Shiina Side-Hole Catheter Placement for Hepatic Arterial Infusion Chemotherapy in Patients with Liver Metastases from Colorectal Cancer: Long-Term Treatment and Survival Benefit Am. J. Roentgenol., January 1, 2008; 190(1): 111 - 120. [Abstract] [Full Text] [PDF]