Abstract

In patients with an acute aortoceliac angle, the diagnostic catheter often fails to enter the common hepatic artery. To retrospectively evaluate the impact of aortoceliac angle on the implantation of a port-catheter system via a femoral approach for hepatic arterial infusion chemotherapy (HAIC) in patients with advanced hepatocellular carcinoma (HCC). A total of 399 patients with advanced HCC underwent percutaneous implantation of a port-catheter system for HAIC. Among these patients, 383 underwent successful implantation via a femoral artery approach (success group). In 16 patients, port-catheter systems were implanted via a subclavian artery approach (failure group) after failure of the initial attempt via the femoral artery due to failed catheter tip fixation to the gastroduodenal artery. We statistically analyzed aortoceliac angle, ostial celiac stenosis, sex, age, weight, height, and body mass index (BMI) between groups. The average aortoceliac angle, weight, and BMI were significantly different between the two groups (P < 0.001, P = 0.02, P < 0.001, respectively). Among them, only the aortoceliac angle was a significant risk factor in logistic regression analysis. The smaller the aortoceliac angle, the more often the femoral approach failed (P < 0.001, odds ratio = 0.817, 95% confidence interval = 0.752-0.887). There were no significant differences in ostial celiac stenosis, sex, or age between the two groups (P = 0.549, 0.056, 0.173, and 0.773, respectively). For patients with an acute aortoceliac angle, the femoral approach is likely to fail. A subclavian artery approach should be preferentially considered for percutaneous implantation of a port-catheter system in such patients.

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