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  • Title: [The percutaneous placement of intra-arterial catheters with "reservoirs" for subcutaneous infusion. The technic and preliminary results].
    Author: Grosso M, Zanon C, Zanon E, Corsico M, Gazzera C, Mancini A, Fava C.
    Journal: Radiol Med; 1997 Sep; 94(3):226-32. PubMed ID: 9446130.
    Abstract:
    INTRODUCTION: We report our personal technique and the preliminary results of percutaneous implantation of intraarterial catheters connected to a subcutaneous infusion reservoir (Port-a-cath) for the regional chemotherapy of hepatic and extrahepatic tumors. January, 1996, to February, 1997 fifty patients underwent the procedure: 44 had liver cancers (42 had metastases and 2 hepatocellular carcinomas), 4 pelvic tumors (2 bladder carcinomas, one uterine cancer and one vaginal cancer), one had inoperable pancreatic tumor and one breast cancer. MATERIALS AND METHODS: The access was the left axillary artery in 45 cases, the femoral artery in 4 and both the femoral and the axillary artery in one case. The infusion catheter was placed in the hepatic artery in 44 cases, in the splenic artery in one case of pancreatic cancer, in the hypogastric artery in 4 cases and in the internal mammary artery in one case. When the catheter was positioned in the hepatic artery, embolization of the gastroduodenal or accessory hepatic arteries was performed using metallic coils; when the catheter was positioned in the hypogastric artery, the contralateral hypogastric artery and the ipsilateral gluteal branches were embolized. The catheter was then tunnelled and connected to a subcutaneous reservoir, sutured to the pectoral fascia or to the inguinal ligament. After the injection of heparinated solution, infusion chemotherapy was started the day after the procedure. RESULTS: We obtained immediate technical success in all cases. Four major complications occurred: a pseudoaneurysm of the left axillary artery (percutaneously treated by placement of a covered stent), 2 thromboses of the hepatic artery and one case of gastritis. Among minor complications, the catheter was displaced in 9 cases and 7 catheters were percutaneously replaced. Side-effects, not related to the procedure, were pain, nausea, vomiting and mucositis. During the follow-up, 7 patients died (6 for tumor progression); median catheter patency was 5.14 months. Though the aim of this work is to present the technical aspects of the procedure, we report the preliminary clinical data: radiological examinations showed partial tumor regression in 15 of 33 patients with 3-month follow-up; no change was shown in 2 patients and disease progression was found in 4; the response could not be assessed in the other cases. CONCLUSIONS: In conclusion, the percutaneous placement of intraarterial catheters for continuous regional chemotherapy is a feasible, safe and tolerable procedure and can represent an alternative to the surgical implantation of catheters in the hepatic artery for the treatment of liver metastases from colorectal cancer. The technique opens new therapeutic possibilities for the local treatment of extrahepatic tumors (such as gynecologic, vesical, pancreatic and breast cancers), even though its clinical efficacy must be assessed in selected trials.
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