Abstract
To investigate the effects of intra-arterial chemotherapy on T1 stage bladder cancer (Bca) and evaluate patient outcome with bladder-preserving treatment approaches. A total of 238 patients with T1 stage Bca were retrospectively analyzed. Among them, 35 patients were categorized into the subgroup of highest-risk T1 stage according to the European Association of Urology guidelines and received immediate radical cystectomy (RC group), whereas 62 were classified as being highest-risk T1 patients but were unwilling to undergo RC and were treated with gemcitabine plus cisplatin intra-arterial chemotherapy (GC group). There were 141 T1 patients who had bladder-preserving surgery with intravesical chemotherapy (IVC group). For patients with T1 stage Bca, the GC group had a higher estimated recurrence-free survival rate (44.4 vs. 13.9%, P=0.087), progression-free survival rate (75.4 vs. 32.8%, P=0.006), and cancer-specific survival (CSS) rate (78.7 vs. 67.5%, P=0.399) when compared with the IVC group, respectively. Using the multivariable regression model, the GC intra-arterial chemotherapy was significantly related to bladder preservation (P=0.004), lower recurrence (P=0.012), and less progression (P=0.004). For patients with the highest-risk T1 stage, GC group did not have a poorer CSS rate in comparison with the RC group (P=0.383). Moreover, immediate RC did not confer a survival benefit in terms of CSS when compared with those who underwent deferred RC after failing GC intra-arterial chemotherapy (P=0.283). Gemcitabine plus cisplatin intra-arterial chemotherapy may be an effective bladder-preserving alternative adjuvant treatment for patients with T1 stage Bca with oncologic benefits, good compliance, and low toxicity.
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