4.6 Article

Outpatient laser ablation of non-muscle-invasive bladder cancer: is it safe, tolerable and cost-effective?

Journal

BJU INTERNATIONAL
Volume 112, Issue 5, Pages 561-567

Publisher

WILEY
DOI: 10.1111/bju.12216

Keywords

non-muscle-invasive bladder cancers; superficial bladder cancers; holmium laser; cost-effectiveness; photodynamic diagnosis

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Objectives To evaluate the safety, tolerability and effectiveness of outpatient (office-based) laser ablation (OLA), with local anaesthetic, for non-muscle-invasive bladder cancer (NMIBC) in an elderly population with and without photodynamic diagnosis (PDD). To compare the cost-effectiveness of OLA of NMIBC with that of inpatient cystodiathermy (IC). Patients and Methods We conducted a prospective cohort study of patients with NMIBC treated with OLA by one consultant surgeon between March 2008 and July 2011 A subgroup of patients had PDD before undergoing OLA. Safety and effectiveness were determined by complications (In the immediate post operative period, at three days and at three months), patient tolerability (visual analogue score) and recurrence rates. The long-term costs and cost-effectiveness of OLA and IC of NMIBC were evaluated using Markov modeling. Results A total of 74 OLA procedures (44 white-light, 30 PDD) were carried out in 54 patients. The mean (range) patient age was 77 (52-95) years. More than half of the patients had more than three comorbidities. Previous tumour histology ranged from G1pTa to T3. One patient had haematuria for 1 week which settled spontaneously and did not require hospital admission. There were no other complications. The procedure was well tolerated with pain scores of 0-2/10. Additional lesions were found in 21% of patients using PDD that were not found using white light. At 3 months, the percentage of patients who had recurrence after OLA with white light and OLA with PDD were 10.6 and 4.3%, respectively. At 1 year, 65.1% and 46.9% of patients had recurrence. The cost of OLA was found to be much lower than that of IC (538 pound vs 1474) pound, even with the addition of PDD (912 pound vs 1844) pound. Over the course of a patient's lifetime, OLA was more clinically effective, measured in quality-adjusted life-years (QALY), than IC (0.147 [ SD 0.059]) and less costly (2576.42 pound [ SD 7293.07]) pound. At a cost-effectiveness threshold of 30 pound 000/QALY, as set by the National Institute for Health and Care Excellence, there was an 82% probability that OLA was cost-effective.

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