Treatment and prognosis of patients with urinary bladder cancer with other primary cancers: a nationwide population-based study in the Bladder Cancer Data Base Sweden (BladderBaSe)

Firas Aljabery, Fredrik Liedberg, Christel Häggström, Viveka Ströck, Abolfazl Hosseini, Truls Gårdmark, Amir Sherif, Tomas Jerlström, Per Uno Malmström, Oskar Hagberg, Lars Holmberg

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: To study how patients with urinary bladder cancer (UBC) with previous or concomitant other primary cancers (OPCs) were treated, and to investigate their prognosis. Patients And Methods: Using nationwide population-based data in the Bladder Cancer Data Base Sweden (BladderBaSe), we analysed the probability of treatment with curative intent, and UBC-specific and overall survival (OS) in patients with UBC diagnosed in the period 1997–2014 with or without OPC. The analyses considered the patient’s characteristics, UBC tumour stage at diagnosis, and site of OPC. Results: There were 38 689 patients, of which 9804 (25%) had OPCs. Those with synchronous OPCs more often had T2 and T3 tumours and clinically distant disease at diagnosis than those with UBC only. Patients with synchronous prostate cancer, female genital cancer and lower gastro-intestinal cancer were more often treated with curative intent than patients with UBC only. When models of survival were adjusted for age at diagnosis, marital status, education, year of diagnosis, Charlson Comorbidity Index and T-stage, UBC-specific survival was similar to patients with UBC only, but OS was lower for patients with synchronous OPC, explained mainly by deaths in OPC primaries with a bad prognosis. Conclusions: OPC is common in patients with UBC. Treatment for UBC, after or in conjunction with an OPC, should not be neglected and carries just as high a probability of success as treatment in patients with UBC only. The needs of patients with UBC and OPC, and optimisation of their treatment considering their complicated disease trajectory are important areas of research.

Original languageEnglish
Pages (from-to)625-632
Number of pages8
JournalBJU International
Volume126
Issue number5
Early online date2020 Aug 6
DOIs
Publication statusPublished - 2020 Nov

Subject classification (UKÄ)

  • Cancer and Oncology

Free keywords

  • #BladderCancer
  • #blcsm
  • #uroonc
  • #utuc
  • bladder cancer
  • cohort study
  • management
  • other primary cancer
  • outcome

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