Objectives: To evaluate the clinical usefulness of preoperative transcatheter arterial infusion chemotherapy (TAIC) for locally advanced breast cancer.
Methods: Seven patients with unresectable locally advanced breast cancer (stage IIIb) underwent TAIC percutaneously 1-3 times (mean, 1.7 times) until tumors became resectable. Anticancer drugs were injected into both the internal mammary and the distal subclavian arteries.
Results: There was no major complication related to the procedure. The mean tumor size was significantly decreased from 10.0+/-3.9 to 5.1+/-2.5 cm (P=0.0086). Skin and muscle invasions were improved in two patients (28%) and lymph nodes disappeared in one patient (14%). In two patients (28%), down-staging was achieved from stage IIIb to stage IIIa. All tumors turned into resectable, and mastectomy was performed with a mean period of 35 days (range 9-60 days) after TAIC. Marked decrease in tumor size allowed one patient to receive breast-conserving surgery. There was no local recurrence in any patient. However, five patients (71%) experienced distant metastases. The 3-year disease free and overall survival were 0 and 71.4%, respectively.
Conclusions: TAIC for locally advanced breast cancer is useful in reducing tumor size and achieving down-staging in a relatively short period, leading to an expanded surgical indication.
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