Feeding Arteries of Primary Tongue Cancers on Intra-arterial Infusion Chemotherapy
Cardiovascular and interventional radiology(2015)
Abstract
Purpose To evaluate the frequency and the predictive factor of each feeding artery on intra-arterial infusion chemotherapy (IAIC) in primary tongue cancer. Materials and Methods We retrospectively evaluated 20 patients who received IAIC for primary tongue cancer. The main and accompanying feeding arteries were identified on super-selective angiography of the branches of the external carotid artery. Tumor diameter, and extension to the contralateral side, tongue extrinsic muscles (TEMs), and lateral mesopharyngeal wall were determined based on magnetic resonance imaging or computed tomography findings. Results The main feeding artery was the ipsilateral lingual artery (LA) in 15 of the 20 examined tumors and the contralateral LA in the other 5. Ten cancers had only one feeding artery, and multiple feeding arteries were detected in the remaining 10. Tumors >4 cm ( n = 9), those with extension to the contralateral side ( n = 13), and those with extension to TEMs ( n = 15) were supplied by significantly larger numbers of feeding arteries compared to tumors without these features ( P = 0.01, 0.049, and 0.02, respectively). The frequency of feeding from the contralateral LA was 64 % (9/14) and 17 % (1/6) in tumors with and without extension to the contralateral side, respectively. Feeding from a facial artery (FA) was not detected in tumors ≤4 cm, while 5 of the 9 (56 %) tumors >4 cm were supplied by a FA ( P = 0.01). Conclusion A careful search for feeding arteries is required, especially in large tumors with extension to the contralateral side or to TEMs.
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Key words
Arterial intervention,Cancer,Clinical practice ,Interventional oncology,Intraarterial
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