Pꢀꢁvꢂꢃ ꢄꢀꢃuꢄꢄꢀꢅꢃꢀ ꢆftꢀꢄ ꢄꢆdꢂꢃꢆꢁ ꢃyꢇtꢀꢃtomy foꢄ bꢁꢆddꢀꢄ ꢃꢆꢅꢃꢀꢄ
PR (Figs. 3 and 4). This latter observation is at odds with
what currently comprises a cardinal aspect of radical cyst-
ectomy, whereby still more extensive nodal clearance is
rent tumour in the pelvis can and do experience significant
morbidity that is poorly palliated, whether or not distant
disease coexists.
1
0,11
being advocated and investigated.
Lymph node counts,
This study was undertaken because of the clinical percep-
tion that PR remains a significant problem following curative
surgery in pT3/T4 urothelial bladder cancer, an issue that is
not readily discernible in the uro-oncological literature. The
multi-institutional data presented corroborates this mater-
ially high risk of loco-regional failure following contempor-
ary radical cystectomy in advanced-stage presentation and
emphasizes the need to address the issue definitively. Pelvic
control is a necessary, but insufficient requirement for cure.
Giving it the focus it warrants will enable uro-oncologists to
elucidate the optimal, nuanced amalgam of surgery, radio-
therapy, and systemic therapies that maximizes the cure
potential for the individual bladder cancer patient.
be they absolute or proportional, are vulnerable to varia-
tions in retrieval from the resected specimen. Additionally,
the relatively small number of patients and the possibility
that patients with node-positive disease are more likely to
manifest metastatic disease, thus reducing the clinical prob-
ability of identifying PR, likely explain this anomalous result.
Our data must not be misconstrued as minimizing the
importance of adequate nodal dissection. Christodouleas
has validated, extramurally, the robustness of assigning
post-cystectomy patients to low-, intermediate- and high-
risk categories on the basis of pathological stage, numbers
12
of resected lymph nodes, and margin status. The soundness
1
3
15
of this model has been further corroborated by Froehner
In North America, the NRG clinical trials group has
1
4
and Ku This stratification of PR risk accounts for tumour-
related parameters. Other factors can be considered as being
patient- or treatment-related. Given that, by definition, all
patients undergoing curative radical cystectomy had to be
sufficiently well-suited in terms of medical condition and
performance status to undergo the surgery, it is unlikely that
other patient variables have contributed to the probability
of PR. Treatment factors include the use of neo or adjuvant
chemotherapy, thoroughness of the operation, and case vol-
ume issues that speak to the surgical team’s experience. As
noted previously, randomized trial data show that adminis-
tering chemotherapy to these patients does not reduce PR
rates. While nodal status is unequivocally a tumour par-
ameter, resected nodal counts definitely and margin status
possibly also reflect surgical rigor. That all these patients
underwent surgery at academic hospitals with cancer clinic
affiliations speaks to the likely sufficient patient volumes and
requisite surgical expertise.
opened a randomized trial examining adjuvant radiother-
apy and similar studies are being launched in France, Asia,
and the U.K. This is the currency of clinical investigation
into the treatment of all other solid malignancies that has
yielded ever-improving local, regional, and systemic control,
a scenario that can be realistically anticipated for bladder
cancer as well.
Competing interests: Dr. Eapen has received grants/honoraria from Abbott and AstraZeneca; and
has participated in numerous clinical trials. Dr. Kassouf has received grants/honoraria from Amgen,
Astellas, and Janssen; and is also the recipient of a Research Scholar Award from the FRSQ. Dr.
Lambert has received grants/honoraria from Ferring and has participated in clinical trials for Ferring
and Janssen. Dr. Morgan has been an Advisory Board member for Accuray, Bayer, Janssen, and
Sanoꢀ; has received grants/honoraria from Abbvie and Astellas; and has participated in clinical trials
for Bayer and Janssen. Dr. Siemens has participated in clinical trials for Amgen, Astellas, Ferring,
and Janssen. Dr. Tyldesley has received grants/honoraria from Amgen, Bayer, and Janssen. Dr.
Black has been an Advisory Board member for Abbvie, Amgen, Astellas, Biocancell, Cubist, Janssen,
Novartis, and Sitka; has been on Speaker Bureaus for Abbvie, Janssen, Ferring, Novartis, and Red
Leaf Medical; has received grants/honoraria from Pendopharm; has participated in clinical trials for
Amgen, Astellas, Ferring, Janssen, and Roche; and has received research funding from GenomeDx,
iProgen, Lilly, and New B Innovation. Dr. Bowen has been an Advisory Board member for Astellas
and Janssen; and has received grants/honoraria from AstraZeneca. Dr. Evans has been an Advisory
Board member for Omnyx Digital Pathology. Dr. Bauman has received grants/honoraria from Sanoꢀ
and has participated in clinical trials for Sanoꢀ. Dr. Izawa has received grants/honoraria from Abbott,
AstraZeneca, Astellas, Janssen, Sanoꢀ, and Pꢀzer. Dr. Chung has received grants/honoraria from
Sanoꢀ and has participated in clinical trials for Abbvie. The remaining authors declare no competing
In the final analysis, this high rate of PR cannot be attrib-
uted to any unfortunate case mix or singular compromise
of accepted bounds of contemporary surgical management.
Rather, it is almost certainly a reflection of the true rates of
pelvic failure revealed when the singular focus of the study
is the number of pelvic relapses.
The approach of discounting pelvic recurrence if it
coincides with or succeeds distant metastases speaks to a
perspective that relegates loco-regional failure to the status
of being an unfortunate, but clinically unimportant event.
This derives from the fact that the majority of patients with
pelvic relapse also develop distant disease. However, it
remains the clinical reality that: 1) essentially, no patient
with pelvic failure can be salvaged, rendering the magnitude
of the pelvic relapse problem an absolute ceiling on surgical
curability; 2) in the 15% minority of patients who develop
isolated pelvic relapse, the clinical outcome is determined
by local and not distant disease; and 3) patients with recur-
ꢀ
nancial or personal interests.
This paper has been peer-reviewed.
CUAJ • March-April 2016 • Volume 10, Issues 3-4
93