Journal of Cancer Sciences
Download PDF
Letter to Editor
The Treatment of Glioblastoma: Letter from Russia
Jargin SV*
Department of Pathology, People’s Friendship University of Russia, Russian
Federation
*Address for Correspondence: Jargin SV, Department of Pathology, People’s Friendship University of Russia, Clementovski per 6-82, 115184 Moscow, Russia, Email: sjargin@mail.ru
Submission:28 February, 2024
Accepted:18 March, 2024
Published:20 March, 2024
Copyright:©2024 Jargin SV. This is an open access article distributed
under the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided
the original work is properly cited.
In 1980-1981 the author worked as a nurse at the neurosurgery
of the Botkin hospital in Moscow. Patients with glioblastoma (GBM)
were routinely operated on, while it was believed by some staff that
the treatment was generally useless, just forcing many patients to
spend the rest of their lives in bed. The directive to apply the largest
possible radical operations for gliomas was issued at the 1959 and
especially 1966 Moscow Conferences of Neurosurgeons.[1] Advanced
age was not regarded to be an obstacle to the radicalism [2]. Later on,
microsurgery, intra-operative imaging and other modern methods
lead to a reduction in the surgical morbidity. However, despite
extensive research, prognosis has not changed significantly in the past
decade [3]. Arguments against resection are based on the invasiveness
of GBM, which cannot be totally removed; in addition, there might
be a tumor cell spreading due to the operation, new neurological
deficits and other complications [4]. Maximum resection using
microsurgical techniques as safely feasible is considered standard
of care, although the role of surgery has been difficult to define in
controlled clinical trials [5]. The evidence is weak in terms of both the
number of trials and their robustness [6]. The retrospective design
of studies has raised concerns about selection bias [7] that is, some
tumors are more respectable than others, and these tumors also may
be inherently less aggressive, the impact of surgery possibly being an
epiphenomenon [8]. It is often argued that a prerequisite of glioma
diagnosis is resection or biopsy, both methods being associated with
risk. Of note, intracranial malignancy can be diagnosed in some cases
by imaging and “liquid biopsy” [9]. Improvements of preoperative
diagnostics must limit indications for the trepanation.
The volume of residual tumor after surgery negatively correlates
with the outcome; but it has remained unclear whether the extent of
resection improves the outcome or whether tumors amenable to gross
total resection have on average less malignant course [5] (Weller et
al. 2019). If even surgical outcomes are deemed good, some patients
remain with neurocognitive decline or otherwise deterioration of the
life quality [10]. Although evidence suggests that surgical excision
improves the outcome in most cases, it is often associated with
morbidity [11]. There are indications that standard therapy including
surgery may be not in a patient’s best interests [12]. Without surgery,
some patients receiving symptomatic palliative therapy could use
the remaining months to complete their tasks. The palliative care
increases the number of patients who survive more than 2 years
approximately 3-fold compared with those declining the treatment
in whole or in part [13]. Existing methods of GBM management are
not questioned here. It is important that patients (or caregivers if the
patient’s thinking capacity is impaired) must be objectively informed
about potential benefits and adverse effects of different treatments.
Signed informed consent is mandatory for all surgical candidates
[14]. Tacit consent must not be supposed, in particular, regarding
end-of-life decisions [15]. All the above is of particular importance
for the elderly. For aged patients with newly diagnosed GBM, current
recommendations include surgery; however, some studies indicated
that in patients aged 65 years and older, median overall survival is only
modestly improved or that there is no improvement with resection
compared to biopsy [7,16]. Treatment strategies should be balanced
against patient-specific factors and quality-of-life concerns [17].
Many patients and their relatives access information on the
Internet. The information available online is not monitored [18].
In Russia, media tend to trivialize risks and discomfort associated
with surgeries and other invasive procedures. Some medical men
on YouTube claim that new techniques enable to radically remove
deep GBMs without damaging brain structures: https://www.
youtube.com/watch?v=-0GLCfdMv10; https://www.youtube.com/
watch?v=l2kSeb92jpY (accessed February 11, 2024). Unlike other
countries, public libraries are rarely used and generally contain no
professional medical literature. Medical and scientific libraries are
hindered from using by the general public, including even retired
doctors, by unfriendly staff and technical difficulties [19]. Some
professional publications recommending invasive procedures apply
misquoting, for example: “The average life expectancy for malignant
gliomas in patients receiving only conservative therapy was 9 weeks
- 6.6 months” [20] with references [21-23]. Surgeries are often
presented by media as something a priori beneficial, conductive to
good convalescence; while side effects, risks and procedural quality
are not mentioned. It has been reasonably recommended that
medical institutions and professionals must work to produce more
reliable content in order to improve the availability of credible health
information for patients [18].
Justifications of surgical hyper-radicalism could be heard in
private conversations among medics, for example: “The hopelessly ill
are dangerous” i.e., may commit reckless acts undesirable by the state.
This might be one of the reasons why GBM patients are routinely
operated. The training of medical personnel under the imperative of
readiness for war has been another motive [24,25]. Finally, the obstacles
to the import of drugs and medical equipment should be mentioned.
Domestic products are promoted sometimes despite questionable
quality and possible counterfeiting. Today, the economical upturn
enables acquisition of modern equipment; and scientific research is
encouraged by authorities. Under these circumstances, the purpose
of this letter was to remind that, performing surgical or other invasive
procedures, the risk-to-benefit ratio must be kept as low as reasonably
achievable.