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Review
. 2010 Jan;57(1):60-70.
doi: 10.1016/j.eururo.2009.08.024. Epub 2009 Sep 1.

An updated critical analysis of the treatment strategy for newly diagnosed high-grade T1 (previously T1G3) bladder cancer

Girish S Kulkarni  1 , Oliver W Hakenberg, Juergen E Gschwend, George Thalmann, Wassim Kassouf, Ashish Kamat, Alexandre Zlotta
Affiliations
Review

An updated critical analysis of the treatment strategy for newly diagnosed high-grade T1 (previously T1G3) bladder cancer

Girish S Kulkarni et al. Eur Urol. 2010 Jan.

Abstract

Context: High-grade T1 (formerly T1G3) bladder cancer (BCa) has a high propensity to recur and progress. As a result, decisions pertaining to its treatment are difficult. Treatment with bacillus Calmette-Guérin (BCG) risks progression and metastases but may preserve the bladder. Cystectomy may offer the best opportunity for cure but is associated with morbidity and a risk of mortality, and it may constitute potential overtreatment for many cases of T1G3 tumours. For purposes of this review, we continue to refer to high-grade T1 lesions as "T1G3."

Objective: To review the current literature on the management of T1G3 BCa and to provide recommendations for its treatment.

Evidence acquisition: A National Center for Biotechnology Information (NCBI) PubMed search for relevant articles published between 1996 and 9 January 2009 was performed using the Medical Subject Headings "T1G3" or "T1" and "Bladder cancer." Articles relevant to the treatment of T1G3 BCa were retained.

Evidence synthesis: The diagnosis of T1G3 disease is difficult because pathologic staging is often unreliable and because of the risk of significant understaging at initial transurethral resection (TUR) of bladder tumour. A secondary restaging TUR is recommended for all cases of T1G3. A single dose of immediate post-TUR chemotherapy is recommended. For a bladder-sparing approach, intravesical BCG should be given as induction with maintenance dosing. Immediate or early radical cystectomy (RC) should be offered to all patients with recurrent or multifocal T1G3 disease, those who are at high risk of progression, and those failing BCG treatment.

Conclusions: Both bladder preservation and RC are appropriate options for T1G3 BCa. Risk stratification of patients based on pathologic features at initial TUR or at recurrence can select those most appropriate for bladder preservation compared to those for whom cystectomy should be strongly considered.

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