Current Approaches to the Management of Non-Muscle Invasive Bladder Cancer: Comparison of Current Guidelines and Recommendations
Introduction
The guidelines of the European Association of Urology (EAU) [1], the First International Consultation on Bladder Tumors (FICBT) [2], the National Comprehensive Cancer Network (NCCN) [3], and the American Urological Association (AUA) [4], [5] all contribute to an excellent evidence-based framework for the management of non-muscle invasive bladder cancer (NMIBC). However, there are differences in the recommendations made in these guidelines as well as contentious areas and topics that are not addressed.
To provide more practical and uniform recommendations that would be applicable to community urologists, the International Bladder Cancer Group (IBCG) for NMIBC critically analyzed and compared the EAU, FICBT, NCCN, and AUA guidelines. This article summarizes these guidelines and identifies the key similarities and differences in their recommendations.
Before comparing the guidelines, it is important to note the categories of consensus or evidence-based grading systems used by each of the individual guideline panels. The level of evidence and grade of recommendations used in the EAU guidelines are shown in Table 1[6], [7]. The recommendations of the FICBT are based on the International Consultation on Urologic Disease (ICUD) grading system presented in Table 2[2], [8], and the NCCN recommendations are based on the categories of consensus shown in Table 3. All NCCN recommendations are category 2A unless otherwise specified [3]. The AUA Guidelines Panel conducted its own meta-analyses of randomised controlled trials and developed tables that provided outcome estimates for different treatment modalities for NMIBC. Based on evidence in the outcome tables and expert opinion, the AUA guideline statements were graded with respect to the degree of flexibility in their application [4], [5]. These three levels of flexibility are defined in Table 4.
The treatment and management of NMIBC ultimately depends on the patient's risk of recurrence and/or progression. The following article compares the EAU, FICBT, NCCN, and AUA risk-stratification definitions and treatment recommendations for each level of risk.
Section snippets
Definitions of levels of risk
Although the EAU, FICBT, NCCN, and AUA guidelines agree on the importance of risk stratification for NMIBC management, there are differences in their definitions of level of risk as well as their proposed treatments for each risk category. Table 5 summarizes the definitions for low-, intermediate-, and high-risk disease proposed by the EAU, FICBT, NCCN, and AUA [1], [3], [4], [5], [9], [10], [11].
Transurethral resection of the bladder tumour
All guideline recommendations agree that transurethral resection of the bladder tumour (TURBT) is the gold standard for the initial diagnosis and treatment of NMIBC, regardless of level of risk.
According to the FICBT recommendations, complete tumour resection should be attempted, except in cases of diffuse carcinoma in situ (CIS), and bladder perforation should be avoided [12]. The AUA acknowledges that the size and/or multiplicity of tumours or obvious deep muscle invasion may prevent complete
Defining treatment failure
The ability to determine the optimal management strategies for treatment failures has been hampered by the lack of a standard definition for failure. In fact, the EAU, FICBT, NCCN, and AUA all have varying definitions of treatment failure. The EAU, for example, does not define primary intravesical treatment failure but does provide the following definition for BCG failure [1]:
- a.
Whenever muscle-invasive tumour is detected during follow-up
- b.
If high-grade non-muscle invasive tumour is present at both
Follow-up regimens
Many urologists perform life-long, frequent follow-up cystoscopies in patients with NMIBC. However, such frequent follow-up is unnecessary, since approximately 50% of these patients have a very low risk of recurrence and a negligible risk of progression [27].
The recommended follow-up schedules proposed by the EAU, FICBT, NCCN, and AUA vary. In low-risk patients, for example, the EAU recommends surveillance cystoscopy at 3 mo. If negative, the following cystoscopy is advised at 9 mo and,
Conclusions
Through critical analysis and comparison of the EAU, FICBT, NCCN, and AUA guidelines, the IBCG has established areas of consensus on NMIBC management as well as on contentious topics that need to be addressed. Established areas of consensus among the four guidelines include the importance of TURBT and an immediate, postoperative dose of chemotherapy (agent optional) in all patients with NMIBC and the benefit of adjuvant BCG therapy in high-risk disease.
However, the four guideline
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Intravesical valrubicin in patients with bladder carcinoma in situ and contraindication to or failure after bacillus Calmette-Guérin
2013, Urologic Oncology: Seminars and Original InvestigationsCitation Excerpt :CIS is considered a high-risk form of NMIBC because of frequent recurrences or progression [2,3], and treatment is directed at reducing or eliminating these events [2,3]. Guidelines recommend transurethral resection of the bladder tumor (TURBT) followed by bacillus Calmette-Guérin (BCG) induction and maintenance treatments for patients with high-risk NMIBC [2–6]. In these patients, BCG is superior to intravesical chemotherapy [7], especially when maintenance therapy is provided [2,8–10].
A review of current guidelines and best practice recommendations for the management of nonmuscle invasive bladder cancer by the international bladder cancer group
2011, Journal of UrologyCitation Excerpt :Recommendations are based on consensus interpretation of the current guidelines and literature. Although the 4 guidelines agree on the importance of risk stratification for NMIBC management based on patient risk of recurrence and/or progression, there are differences in the definitions of risk as well as in the proposed treatments for each risk category (Appendix 1).1,3–5,7–10 Upon review of the 4 guidelines the IBCG proposed the practical definitions of low, intermediate and high risk disease based on risk of recurrence and disease progression (see figure).
Modern transurethral resection in the management of superficial bladder tumours
2011, British Journal of Medical and Surgical UrologyCitation Excerpt :They observed that multiplicity of the bladder tumour was a significant risk factor for upper tract lesions, and this is supported by other studies [53–55]. In high grade disease, tumours in the trigone or CIS the incidence of upper tract lesions is higher, and upper tract imaging in the form of IVU or CT-IVU is recommended by BAUS, EAU and AUA guidelines [56]. Due to the irregularity of subsequent upper tract involvement there is no consensus as to how often imaging takes place and as such imaging decisions will be made on a case-by-case basis.
Modern transurethral resection in the management of superficial bladder tumours
2011, Journal of Clinical UrologyCitation Excerpt :They observed that multiplicity of the bladder tumour was a significant risk factor for upper tract lesions, and this is supported by other studies [53–55]. In high grade disease, tumours in the trigone or CIS the incidence of upper tract lesions is higher, and upper tract imaging in the form of IVU or CT-IVU is recommended by BAUS, EAU and AUA guidelines [56]. Due to the irregularity of subsequent upper tract involvement there is no consensus as to how often imaging takes place and as such imaging decisions will be made on a case-by-case basis.