Oral Presentation Clinical Oncology Society of Australia Annual Scientific Meeting 2019

Patterns of surgery and outcomes - a guide to best practice for bladder cancer patients following radical cystectomy in Queensland (#23)

Geoff Coughlin 1 2 3 , Philippa Youl 4 , Shoni Philpot 4 , David E Theile 5 , Julie Moore 4
  1. The Wesley Hospital, Brisbane, Queensland, Australia
  2. The Royal Brisbane and Women's Hospital, Queensland Health, Brisbane, Queensland, Australia
  3. Urology Sub-Committee, Queensland Cancer Control Safety and Quality Partnership, Queensland Health, Brisbane, Queensland, Australia
  4. Queensland Cancer Control Analysis Team, Queensland Health, Brisbane, QLD, Australia
  5. Queensland Cancer Control Safety and Quality Partnership, Queensland Health, Brisbane, Queensland, Australia

Aims: Radical cystectomy (RC) is a relatively uncommon surgical procedure and the management of patients undergoing this surgery is complex. We conducted a review of bladder cancer patients who underwent a radical cystectomy to understand patterns of surgery and outcomes in Queensland.

Methods: This review includes patients diagnosed with bladder cancer who underwent radical cystectomy from 2002-2016. Data was obtained from the Queensland Oncology Repository (QOR). A review of pathology reports was conducted. Hospitals were categorised as high (>7 RCs/year) and low (≤7 RCs/year). Multivariate analysis and 2-year overall survival was conducted.  Follow-up time was to 31 December 2018.

Results: In the fifteen-year period 7403 patients were diagnosed with bladder cancer, of these 1230 underwent radical cystectomy. Overall 77% were male and the median age was 67 years.  One third (33.5%) were T-stage 3 & 4 at diagnosis. Of the cohort, 71% of (n = 871) had a lymph node dissection and the median number of nodes removed was 7 (range 1–73). Positivity rate was 22.8% and this was similar across hospital volumes. Patients residing in middle and disadvantaged areas were less likely to have had lymph node dissection (OR=0.46, 95% CI 0.28–0.75 and OR=0.44, 95% CI 0.23–0.84). Lymph node dissection was more likely for public compared to private patients (OR=2.69, 95% CI 2.10–3.44).  Surgical margins were involved in 9.7% of patients. Surgical margin involvement was higher in low-volume hospitals (10.9% versus 7.1%, respectively, P = 0.03).  Stage (P < 0.001), positive lymph nodes (P ≤ 0.001), no lymph node dissection (P = 0.003), involvement of surgical margins (P <0.001) were all significantly associated with poorer overall survival.

Conclusions: This review has identified some sub-groups of patients experience poorer post-operative outcomes. Later stage, positive lymph nodes, no lymph node dissection and surgical margin involvement were all predictors of poorer survival.