http://informahealthcare.com/doi/pdf/10.3109/08039488.2012.701665
Clinical judgment in psychiatry.
Requiem or reveille?
GIOVANNI A. FAVA
Fava GA. Clinical judgment in psychiatry. Requiem
or reveille? Nord J Psychiatry 2013;67:1–10.
Background:
There is increasing awareness of a crisis in
psychiatric research and practice.
Psychopathology and clinical judgment are often
discarded as non-scientific and obsolete methods. Yet, in their everyday practice,
psychiatrists use observation, description and
classification, test explanatory hypotheses, and formulate
clinical decisions.
Aim
: The aim of this review was to examine the clinical judgment in
psychiatry, with special reference to clinimetrics, a domain concerned with the
measurement of clinical phenomena that do not find room in customary taxonomy.
Methods
: A MEDLINE search from inception to August 2011
using the keywords “ clinical judgment ” and “
clinimetric ” in relation to psychiatric illness for articles in English language was performed. It was
supplemented by a manual search of the
literature. Choice of items was based on their
established or potential incremental increase inclinical information compared with use of standard
diagnostic criteria. The most representative examples were selected.
Results
: Research on clinical judgment has disclosed
several innovative
assessment strategies: the use of diagnostic
transfer stations instead of diagnostic endpoints using repeated assessments, subtyping versus
integration of different diagnostic categories,
staging, macro-analysis, extension of clinical
information beyond symptomatic features.
Evidence-based medicine does not appear to provide
an adequate scientific background for challenges of clinical practice in psychiatry and
needs to be integrated with clinical judgment.
Conclusions
. A renewed interest in clinical judgment may yield
substantial advances in clinical assessment and treatment. A different clinical
psychiatry is available and can be practiced now.
• Clinical judgment, Clinimetrics, Evidence-based medicine, Conflict of interest, Mental disorders.
Giovanni A. Fava, M.D., Department of Psychology, Viale Berti Pichat 5, 40127 Bologna, Italy,
E-mail: giovanniandrea.fava@unibo.it; Accepted 7
June 2012.
George Engel
(1) differentiated between “ scientific physicians ” (clinicians who fully apply the scientific method in their care of patients and in their understanding of the disease) and “ physician-scientists ” (physicians whose primary commitment is to scientific research pertaining to medicine and who have little or no familiarity with the clinical process). Clinical practice is the
(1) differentiated between “ scientific physicians ” (clinicians who fully apply the scientific method in their care of patients and in their understanding of the disease) and “ physician-scientists ” (physicians whose primary commitment is to scientific research pertaining to medicine and who have little or no familiarity with the clinical process). Clinical practice is the
source of fundamental scientific challenges for scientific
physicians, whereas the application of basic
(including
pharmaceutical) research is the preferred focus of
physician-scientists. Part of the challenge and, at
the
same time, fascination of being a clinician lies in
applying
scientific methods in the care of patients and in under-
standing disease (2). Greater knowledge should
result in
significant benefits for the patients, and in a sense of
continued development on the part of the physician.
We
are witnessing, however, a progressive detachment
of
clinicians from research, which is often
accompanied
by a sense of personal stagnation and tiredness
(2).
This detachment is mainly the reflection of an intellectual
crisis that became more and more manifest in recent
years (1 – 3). Psychiatrists are constantly
reminded that
genetics and neurosciences are going to transform
and
improve their practice. Biomarkers are considered
the
stairway to such a shift (4) and leading journals,
such as
the American Journal of Psychiatry and the Archives
of General Psychiatry, are pursuing this perspective.
Psychiatrists may share this optimism and wait for
this
event. Nothing has really come in the past two
decades
(5, 6), as exemplified by the field of psychiatric genetics
(7), but we may be really close. Psychopathology
and clinical judgment are discarded as
non-scientific
and obsolete methods. Yet, in their everyday
practice,
psychiatrists use observation, description and
classification, test explanatory hypotheses, and formulate
clinical decisions. In evaluating whether a patient needs
admission to the hospital (or can be discharged from
it), in deciding whether a patient needs treatment (and in
case what type) and in planning the schedule of
follow-up visits or interventions, the psychiatrist uses
nothing more.
All four aspects were taken care of and the
clinician who wanted to retain a cautious and balanced
attitude felt
like the person whom Chomsky depicts as sitting
alone
in front of the TV, thinking he/she must be crazy
or out-
dated for not buying what comes out of the tube
(13).
The pseudoscience of meta-analyses
In the mid-1990s, Alvan R. Feinstein (14) compared
meta-analyses to the alchemy that existed before
modern
scientific chemistry. The analogy was the hope to con-
vert existing things into something better
(changing base metals into gold) and the work with material that was heterogeneous and poorly identified. Mixingtogether studies of different qualities and
characteristics could only lead to violation of scientific principles of precision and homogeneity. It is a common belief
that meta-analyses provide an objective appraisal of the state of the art in a specific field. Actually, during thedevelopments of these analyses, there are many
steps
that may involve highly subjective choices (14 –
16): formulation of the question, collection of studies
(published
versus unpublished, databases, key-words, etc.),
criteria
for eligibility and selection of studies,
evaluation of
risk of bias, methods of data extraction and
analysis,
choice of assessment criteria, presentation of
results and
interpretation of data. All these issues may be
affected
by conflict of interest (16). However, authors of meta-
analyses are only required to disclose their financial
interests and are unlikely to detail the source of
funding
of the studies that were included (16).
The example of benzodiazepines
A recent meta-analysis that was concerned with drug
treatment of generalized anxiety disorder (17)
provides
an illustration of how conflict of interest may affect the
rocess. A pharmaceutical firm conceptualized and
designed the study, and commissioned two of the
authors,
who work in a private medical communications
company,
to conduct the systematic review and meta-analysis,
and
prepare the manuscript. Two other authors, who were
university employees, performed a critical review
of the
results and assisted in the development of the
manuscript.
The study was allegedly independent, yet all
authors had
financial ties to the funding firm and other pharmaceuti-
cal companies that manufactured drugs that were
included
and discussed in the meta-analysis. The expert who
was
commissioned to write the accompanying editorial
(18)
than the science of psychopathology (8) and
clinical
judgment (9).
The proliferating connections between scientists and
the industry, with ensuing conflicts of interests, have
brought the credibility of clinical medicine into a
crisis
(10). Not surprisingly, in view of its
characteristics, psy-
chiatry has been particularly vulnerable to this
loss of
credibility (11, 12). Corporate interest has
resulted in self-
selected academic oligarchies (special interest
groups) that
influence clinical and scientific information (10). Members
of special interest groups, by virtue of their financial
power and close ties with other members of the
group,
have the task of systematically preventing
dissemination
of data that may be in conflict with their interests. The
first target is to undermine the critical individual
judgment
of the physicians. The intellectual freedom
portrayed by
scientific physicians, in particular, is the worst enemy of
special interest groups, and thus required massive
doses
of censorship. Censorship may take different forms:
direct suppression of information by special
interest groups
who act as editors and reviewers or make choices in
scientific programs; careful selection of the literature in
a
biased direction and manipulated interpretation of
clinical
trials (including those supported by public
sources); self-
censorship (when an investigator omits of raising
ques-
tions and criticism for the fear of retaliation)
(10).
Not all conflicts of interest in psychiatry are of a
financial nature (personal recognition, career
advance-
ment, visibility in the media, favoring a friend or
relative,
the allegiance to a school of thought, political
commitment, rivalry between experts, representation of a
certain
professional society, involvement in specific educational
activities). However, the conflicts concerned with financial matters have achieved prominence in the past
decade
and have endangered a pluralism that existed before
(10).
In this review, the detrimental effects of
pharmaceutical psychiatry on shaping clinical orientations of
physi-
cians and how clinical research concerned with
clinical
judgment and new political attitudes may foster a
renais-
sance of psychiatry as a medical discipline are
examined.
Evidence-based medicine and clinical judgment
Chomsky ’ s (13) mechanisms of propaganda may apply
to
what has occurred in medicine in the past two
decades.
Corporate interests have fused with academic
medicine to
create an unhealthy alliance that works against
objective
reporting of clinical research (censorship), sets
up meetings and symposia with the specific purpose of selling
the participants to the sponsors (engineering
opinions),
gets its prodigal experts into leading role in
journals,
medical associations and non-profit research organizations
(using the public relations industry), and provides
the
appropriate degree of retaliation to outliers
(marginalizing
with increasingly complicated and cumbersome procedures
that require a working team (25). Detailing
literature
searches and getting as close as possible to a
comprehensive coverage of the literature are of course
welcome targets, even though these procedures were
generallyendorsed by traditional reviews (disdainfully
tagged as “ narrative ” ). However, this does not necessarily
occur with systematic reviews, as the following personal
example concerned with bipolar disorder outlines.
Reviews on bipolar disorder
When Robert Kellner and I published a review on
prodromal symptoms of affective disorders, including
bipolar disorder (26), I had gone through the
literature
both with a computerized (Medline) and manual
search,
including the heavy volumes of the Index Medicus
and
discussed all the issues with my co-author. I had
person-
ally interviewed the patients in a specific study on pro-
dromes of bipolar disorder (27). The conclusion was
that
there was high interindividual variability between
patients,
which did not allow recognition of a specific prodromal
phase (26). However, prodromal symptoms tended to
be
consistent within the same individual, i.e. an
affective epi-
sode tended to begin in the same way for the same
patient
and this allowed room for early intervention.
Indeed, years
later a randomized controlled trial demonstrated
the feasibility of this approach (28), which was further
confirmed
by subsequent trials concerned with
psycho-education (29).
I updated the review in 1999 (30); there was no
substantial change in conclusions compared with 1991, as
well as
it was found to be the case in an independent
review that
appeared in 2003 (31), but other implications were
added.
In 2010 (32) and 2011 (33), two systematic reviews
on
prodromes of bipolar disorder were published. The
first
paper (32) failed to cite previous reviews (26,
30), but
even more importantly, did not include the
investigations
that were discussed in those reviews. The
conclusion was
typical of current systematic reviews: “ More
well-designed
in-depth studies, including qualitative ones, are
needed
to characterize the initial bipolar prodrome ” (32,
p. 126).
The same omissions took place in the other paper
(33),
despite the fact that one of the missing reviews
had been
published in the same journal (30). The authors of
this
2011 paper (33) identified specific clinical features preced-
ing bipolar disorder and ventured in postulating
primary
and secondary interventions. A note of caution was
of
course added: “ Large-scale longitudinal studies
are needed
to validate these features and characterize their
specificity
and sensitivity in independent samples ” (33, p.
1567).
I wish these authors were simply aware of what had
actually been published before advocating new
studies.
Systematic or critical reviews?
I am afraid that cumbersome instructions that
require a
large team of authors (six in the 2011 review) do
not also had financial ties with a number of the pharmaceutical companies that manufactured drugs that were
included and discussed in the meta-analysis. A systematic
review of randomized controlled drug trials was performed
and,by use of probabilistic mixed-treatment
meta-analysis, concluded that two antidepressant drugs had
advantages over other treatments in generalized anxiety
disorder.
These conclusions were challenged by an editorial
that
appeared in another journal (19). Trials were
selected if
they could allow determination of “ response ” (the
proportion of patients who experienced a reduction of
at least 50% of their baseline score on the Hamilton
Anxiety Rating Scale) and remission (the proportion of patients below a certain cut-off on the scale). The
authors failed to justify the choice of outcome measures,
which has the major disadvantage of being affected by
different characteristics of trials, maximizing the
systematic tendency of meta-analyses to violate the internal
validity of
the placebo comparison. The procedure excluded a
great
number of investigations concerned with older and
low-
cost medications, such as benzodiazepines, despite
a large
body of evidence pointing to their efficacy in generalized
anxiety disorder (19). Berney et al. (20) reviewed
of controlled trials on anxiety disorders that compared
antidepressant drugs with benzodiazepines and could
identify only one trial with fewer antidepressants. They
concluded that the major change of prescribing patterns from
benzodiazepines to newer antidepressants in anxiety
disorders occurred without any comparative evidence (20). A
major drive in the change was the risk of dependence with benzodiazepines, even though withdrawal symptoms
frequently occur with newer antidepressants upon
tapering and discontinuation (21), even in optimal
conditions, and do not necessarily subside within a few weeks (22).
The weight of meta-analyses
As often happens with innovations, the weight given
to
meta-analyses is likely to be reconsidered in due
course:
statistically significant meta-analyses of clinical trials have
been found to have modest credibility and inflated effects
(23). Clinical reviews which focus on the
methodological
appraisal of individual studies and their clinical
integration in practice tend to be regarded as less “ scientific ”
than meta-analyses, whereas just the opposite is
true (14).
Combining heterogeneous studies in meta-analyses
may
only lead to inconclusive results (24) and negative
treatment trials tend to go unpublished despite
registration (16). Careful analyses of individual studies, with
appropriate mention to confl
m ict of interest issues, are the actualbest-evidence syntheses.
The intellectual poverty of systematic reviews
The traditional review article with one or two
experts
who review the literature drawing from their
clinical
experience tends to be substituted by systematic
reviews,
aimed at overshadowing truly independent and high-
quality individual studies. Familiarity with the
clinical
process and intellectual independence can make
quite a
difference in the way the literature is examined.
Evidence-based medicine as Leitkultur
The concept of evidence-based medicine, from its
incep-
tion in the early 1990s, has achieved wide currency
and enthusiastic endorsement in all areas of
clinical medicine, including psychiatry. Feinstein & Horwitz
(37)
were among the first to warn about the dangers of
excessive reliance on randomized controlled trials
and meta-
analyses. An issue that is neglected is the fact
that, when
transferred to clinical medicine from their origins
in agricultural research, randomized trials were not
intended to
answer questions about the treatment of individual
patients
(37). The results may show comparative efficacy of treat-
ment for an average randomized patient, but not for
perti-
nent subgroups formed by characteristics such as
severity
of symptoms, comorbidity and other clinical
nuances.
Feinstein & Horwitz (37) also warned against
the authoritative aura given to collections of “ best
available evidence ” , which may lead to major abuses that
produce
inappropriate guidelines or doctrinaire dogmas for
clinical
practice. The risk is particularly serious in view
of the fact that financial conflicts of interest are substantial in
medical societies and guidelines authors (10, 38).
This has
been found to apply also to the psychiatric field (39, 40).
Special interest groups are thus using
evidence-based
medicine to enforce treatment through guidelines,
advocating what can be subsumed under the German language term of “ Leitkultur ” , which connotes the
cultural superiority of a culture, with policies of
compulsory,cultural assimilation. In psychiatry, such process
has achieved strong prescribing connotations (41), with
a resulting neglect of psychosocial treatments.
As Healy (41) remarks, randomized placebo-controlled trials originated
as efforts to debunk therapeutic claims, but the force
field in which medicine is now practiced has transformed
them
into technologies that mandate action ( ... ) Where
the placebo arms of antidepressant, antipsychotic or mood
stabilizer trials suggest we should not be using the
drugs as readily as we do, the trials of these products,
embodied in guidelines, have instead become a means to enforce
treatment. (41, p. 200)
Use of clinical judgment is thus viewed as a dangerous
departure from established patterns, instead of
exercise
of critical thinking.
The inadequacy of current research designs
and strategies Elena Tomba (42) observed that the standard
randomized controlled trial design is still based on the acute
disease prevent major omissions that are functional to
specific
hypotheses or end up to state that the evidence is
too
limited and further studies are needed, as was
found to
be the case in more than half of Cochrane reviews
(34).
Laupacis & Straus (34) remark that the
traditional review
has its virtues: the expert interprets research findings in
light of clinical experience and judgment,
particularly
where the evidence is limited. If he/she distinguishes
between evidence and opinion, this approach can be
much more helpful to clinicians and policymakers.
The reliability of reports of studies funded by the
pharmaceutical industry has been seriously
questioned
(10). Researchers with financial conflicts of interest are
more likely to publish articles (original
investigations,
editorials, systematic and non-systematic reviews,
meta-
analyses) that support the products of the
companies with
which the researchers have financial ties (10). Simple dis-
closure of financial conflicts of interest is not regarded
as sufficient for original investigation funded by pharmaceutical companies, and strategies for minimizing
biases
have been suggested, such as ensuring that at least
one
author who is not employed by a commercial firm has
full access to all of the data and the use of an
independent biostatistician (35). Surprisingly, however,
little has
been proposed to minimize bias in other types of
papers,
and particularly systematic reviews and
meta-analyses
(16, 25, 35). When these latter papers have been
supported by the industry, by means of funding or
authors ’ties, they have been found to reach conclusions
that favored sponsors ’ interests more than independent
metaanalyses (16).
Journals policies and reviews
There is the need for a reassessment of journals ’
policies
concerned with this type of paper. In line with
what has
been suggested for authors of clinical practice
guidelines
(35), meta-analyses should only be conducted by
investi-
gators free of substantial conflicts of interest (10). The
definition of conflict of interest can be, however, less
stringent than that endorsed by American
professional
medical societies (36). It can be suggested that a researcher meets the criteria for the presence of
substantial conflict of interest when he/she is an employee of a private firm, and/or is a regular consultant or on the board of directors of a firm, and/or is a stockholder of a firm related to the field of research and/or owns a patent directly related to the published work (10). The
threshold for determining conflict of interest is thus based on thecontinuity of a financial relationship with a private company. Occasional consultancies, grants for
performing an
investigation, or receiving honoraria or refunds
for
specific occasions would not be a source of substantial
conflict of interest. Rewarding those researchers who
are
free from binding financial ties may avoid inappropriate
publication of reviews driven by financial incentives and
heterogeneous clinical phenomenon such as
depression is
immense. But what is its translational value?
The reveille of clinical judgment
In 1967, Alvan Feinstein dedicated a monograph to
an
analysis of clinical reasoning that underlies
medical evaluations, such as the appraisal of symptoms, signs
and
the timing of individual manifestations (52). In
1982, he
introduced the term “ clinimetrics ” (53) to
indicate a
domain concerned with the measurement of clinical
issues
that do not find room in customary clinical taxonomy.
Such issues include the types, severity and
sequence of
symptoms; rate of progression in illness (staging);
severity of comorbidity; problems of functional
capacity; reasons for medical decisions (e.g. treatment
choices), and many other aspects of daily life, such as
well-being and distress (54, 55). The customary clinical
taxonomy in psychiatry does not include patterns of
symptoms, severity of illness, effects of comorbid conditions, timing of phenomena, rate of progression of illness,
responses to previous treatments, and other clinical
distinctions that demarcate major prognostic and therapeutic
differences
among patients who otherwise seem to be deceptively
similar since they share the same psychiatric
diagnosis
(56). Clinimetric research in psychiatry has
yielded
important insights as to the role and function of
clinical
judgment (56, 57).
Staging
A first strategy is concerned with staging. It differs
from
the conventional diagnostic practice in that it
defines not
only the extent of progression of a disorder at a
particular point in time, but also where a person is
currently along the continuum of the course of illness.
Staging methods for unipolar depression, bipolar disorder,
panic disorder and schizophrenia, which outlined the
basic steps
of development of a psychiatric disorder, ranging
from
the prodromal to the residual and chronic forms, in
a
longitudinal view of development of disturbances,
have
been developed (56, 58, 59), together with. specific
instruments (60, 61). In two randomized controlled
trials
(62, 63), psychotherapeutic intervention was
applied
according to a staging method and was found to
yield
long-term benefits (64, 65).
Unitary concepts
A second approach involves building unitary
concepts
from apparently scattered phenomena.
Tyrer and associates (66) remarked that what is shared by syndromes such
as anxiety, panic, phobic disturbances and
irritability may be as important as the differences between them and
conditions that are apparently comorbid could be part
of thesame clinical syndrome. They argued that the
combination of mixed anxiety and depressive disorders
together
model and ideally evaluates therapeutic effects in
untreated patients who have a recent acute onset of
their
disturbances. This is in sharp contrast with the
fact that,
particularly in psychopharmacology, the patient is
likely
to have experienced other treatments before and
these
treatments may actually modify the course and
responsiveness of the individual patient (21). Under
ordinary conditions, patients are included in a trial
regardless of
their treatment history. The heterogeneous features
of
these that “ nowhere patients ” would then affect
the outcome of the trial. Meta-analyses of these nowhere
groups
of patients may amplify the heterogeneous nature of
the
patient populations (19), particularly if random
effects
models where endorsed (24) and trials had different
rates
of participation (43). Moving from the Beatles
(nowhere
patients) to the Talking Heads, we may add that
pathophysiological studies of these patient
populations
end up being a “ road to nowhere ” . The progress
of neurosciences in the past two decades has often led us
to
believe that clinical problems in psychiatry were
likely to
be ultimately solved by this approach. Such hopes
are
understandable in terms of massive propaganda
operated
by biotechnology corporations (44) and reaction to
a long
prevalence of “ brainless ” approaches (45). An
increasing
number of psychiatrists are wondering, however, why
the
cures and clinical insights that neurosciences have
promised have not taken place. Biological reductionism
(2)
has resulted in an idealistic approach, which is
quite far
from the explanatory pluralism required by clinical
practice. Kendler (46), Van Praag (47) and Belmaker (48)
have been outspoken critics of this reductionism.
Neurosciences have exported their conceptual framework
into
psychiatry much more than serving as an
investigative
tool for addressing the questions addressed by
clinical
practice.
An example may be provided by the problems related
to the loss of clinical effects during long-term
antidepressant treatment (21). The return of depressive
symptoms during maintenance antidepressant treatment
was found to occur in 9 – 57% of published trials
(49).
Pharmacological tolerance, loss of placebo effect,
increase in disease severity, change in disease
pathogenesis, accumulation of a detrimental metabolite,
unrecognized rapid cycling and prophylactic inefficacy have been
suggested as possible explanations (49).
Psychosocial
factors, such as the role of life events in causing
depressive relapse during maintenance treatment (50),
have not
been considered. Also the literature on
differential neurobiological effects of psychosocial treatments
compared
with pharmacotherapy is scarce (51). There is
virtually
no exploration of the neurobiological correlates of
the
loss of clinical effects, despite its clinical
importance and
the practical implications that research in this
area would
entail (21). At the same time, the amount of
research
attempting a neurobiological characterization of a
highly
often subsumed under a rubric of the Diagnostic and
Statistical Manual of Mental Disorders (DSM) (80).
A single assessment generates the prognostic and
thera-
peutic judgments of the clinician. A DSM diagnosis
(e.g. major depressive disorder), however,
encompasses a
wide range of manifestations, comorbidity,
seriousness,
prognosis and responses to treatment. The majority
of
patients with mood and anxiety disorders do not
qualify
for one, but for several axis I and axis II
disorders (81).
Feinstein, when he introduced the concept of comor-
bidity, referred to any “ additional co-existing
ailment ”
separate from the primary disease, even in the case
this
secondary phenomenon does not qualify as a disease
per se (82). Indeed, in clinical medicine, the many meth-
ods that are available for measuring comorbidity
are not
limited to disease entities (83). Unfortunately, in
the
DSM comorbidity has been used only in reference to
additional diagnoses, and not to indicate significant problems, situations and subthreshold conditions.
Macro-analysis
A method has been developed in psychiatry for
organizing clinical data as variables in clinical reasoning.
Emmelkamp et al. (84) have introduced the concept of
macro-analysis (a relationship between co-occurring syndromes and
problems is established on the basis of where
treatment
should commence in the first place) in anxiety disorders.
This method has been extended to mood disorders
(56),
psychosomatic assessment (85) and drug dependence
(86). Macro-analysis starts from the assumption
that
in most cases there are functional relationships
with
other more or less clearly defined problem areas and that
the targets of treatment may vary during the course
of
disturbances (56).
Diagnostic transfers
Feinstein (87) remarks that, when making a
diagnosis,
thoughtful clinicians seldom leap from a clinical
manifestation to a diagnostic endpoint. The clinical
reasoning goes through a series of “ transfer stations ” ,
where potential
connections between presenting symptoms and
pathophys-
iological process are drawn. These stations are a
pause
for verification, or change to another direction (87). The
use of diagnostic transfer stations has been
suggested
by the sequential treatment model (29, 88), an
intensive,
two-stage approach, which includes the use of one
treatment (e.g. psychotherapy) after remission has
been
achieved with another (e.g. pharmacotherapy). The
sequential model relies on repeated assessments
(after
each line of treatment has been completed) that may
modify an initial diagnosis (e.g. pre-existing
anxiety disturbances may emerge after pharmacotherapy of a
major
depressive episode). It recognizes that for most
patients a
single course of treatment is insufficient for yielding
adequate improvement and that different combined or
with a certain type of abnormal personality,
constitute a
single syndrome, the general neurotic syndrome
(66), in
line with the traditional concept of neurosis, in
its phenomenological (67) and psychodynamic (68)
traditions.
The syndrome was shown to be associated with a poor
response to treatment, frequent symptoms throughout
the
neurotic diagnostic spectrum and tendency to
relapse
(66). A related strategy deals with the concept of
allo-
static load, the cumulative effects of stressful
experiences
in daily life (69).
Subtyping
A complementary strategy has to do with subtyping and
differentiating within a diagnostic entity. The
need for
subtyping major depressive disorder, since this
category
is too broad to yield meaningful treatment
implications,
has been recently underscored (70 – 72). The basic
assumption is that clinical manifestations that share the
diagnosis of major depressive disorder may display
substantial
differences in prognostic and therapeutic terms (70
– 72).
If a rating scale is no more than a particular way
of
recording clinical judgment (73), careful symptom
discrimination by interviewing may allow the
attribution of
differential emphasis on specific symptoms. In clinimetrics, major and minor symptoms may be
discriminated,
unlike in psychometrics, where all items are
weighed the
same (55). A recent example was provided by the use
of
an item of the Clinical Interview for Depression
(74),
reactivity to social environment, to characterize
the clinical features (75) and response to treatment (76) of
cyclothymic disorder.
The clinimetric perspective
The clinimetric perspective provides an
intellectual home
for the reproduction and standardization of the
clinical
intuitions (56). If associated with a broader
cultural movement, it may address many of the difficulties that psychiatry is currently encountering. Pharmaceutical
psychiatry is
leading to a marginal role of the specialty in the
medical
system and to a perceived restriction of the
psychiatrist ’ s
role to prescribing and signing forms, limiting
opportunities to engage in the kind of integrated care that
attracted
many physicians to the field (77). There is increasing
awareness of the limitations of current treatment
strategies
that are unable to provide recovery in the majority
of
patients (77). The case of major depression is
particularly
illustrative (78), including the fact that there
are no significant differences between treatments provided by
psychiatrists compared with primary care physicians
(79).
Beyond the concept of disease:
the emerging role of macro-analysis
In most instances of diagnostic reasoning in
psychiatry,
the process ends with the identification of a disorder,
If we peruse the literature for clinical studies
con-
cerned with samples homogeneous for treatment
history,
we may fi
nd out that we do not even have adequate
information from observational studies or open
therapeu-
tic trials (21). Borm & Donders (96) have
suggested
that a series of small trials with at least 30%
power is
preferable to a single large one. These small
trials may
actually provide important clinical information
that is
immediately helpful to the clinician encountering
that
specific patient. This strategy would actually constitute
a
paradigm shift in psychiatry. Conflicting results among
randomized controlled trials can represent a
spectrum of
outcomes, based on different patient groups, more
than
bias or random variability (97).
Regaining intellectual independence
In recent years, the Leitkultur of evidence-based medicine,
because of the influence of special interest groups on
medical societies and their media (journals,
newsletters,
meetings etc.), has become the preferred tool of
pharmaceutical propaganda.
Its reductionistic approach centered on the average
patient hiding the wide fluctuations that may occur in
treatment response.
The variability in response
Horwitz et al. (98) developed a method of clinical
inquiry
within randomized controlled trials that can
enhance
the applicability of results to clinical decision making.
Re-analyzing the Beta-Blocker Heart Attack Trial,
they
found that propranolol reduced the risk of dying
for the
“ average ” patient who survived an acute
myocardial
infarction, whereas it was harmful in a subgroup of
patients characterized by specific cotherapy histories. If
we accept the possibility that a treatment that is
helpful
on average may be ineffective on some and even
harmful
on someone else, we may learn that a given therapy
may
not be of value for a particular class or subgroup
of
patients who are defined in terms of more detailed
(compared with the RCT eligibility criteria)
specifications
of clinical conditions. This may stimulate further
research
on alternative therapies that could potentially
benefit
the class of patients defined by the subgroup for whom
otherwise effective therapy is providing no benefit or
may even be causing harm (98). Many examples may be
provided in the field of psychopharmacology (2), such
as with the use of atypical antipsychotic drugs
(99), as
well as in psychotherapy research (100). The
pharmaceutical industry obviously wants to avoid the phase
of
disillusionment, which follows the report of toxic
unwanted effects, after an initial stage of
enthusiasm for
the “ wonder drug ” , which is then prescribed
excessively
and inappropriately (2). As a result, the
pharmaceutical
industry is likely to censor, with the help of
special interest groups, who act as editors, reviewers and
consultants
sequential approaches may be necessary. The
traditional
psychiatric paradigm still endorses the conviction
that
psychotropic drugs work by acting on a disease
process,
which the propaganda translates into “ curing ”
psychiatric
disease. However, there is substantial evidence to
call
such views in question (89).
New research on clinical judgment
In 1967, Alvan Feinstein (52) urged clinicians to
develop
a “ basic science ” of their own — to study the
clinical
phenomena directly, to specify the importance of
different types of clinical data, to create appropriate
systems
of taxonomy for classifying the information, and to
develop intellectual models and pragmatic methods
that
would articulate the clinical process and use the
results
for quantified analyses. Such line of research, which
affects clinical decision making (90), has been
neglected
(56). The fact that clinicians browsing a journal
issue
may no longer find any article relevant to their practice
is a direct consequence of such neglect.
Exclusive reliance on diagnostic criteria has impoverished the clinical process and does not reflect the complex thinking that underlies decisions in psychiatric practice (56). The use of transfer stations with repeated assessments instead of diagnostic endpoints, the building of global formulations of clinical integration, staging methods, an expansion and a better organization of clinical information, encompassing subclinical distress (30),illness behavior (91), lifestyle (92) and psychological well-being (93 – 95) may be an antidote to oversimplified models that derive from biological reductionism, neglect individual responses to treatment and clash with clinical
reality (56). A large amount of clinical research
is derivative: methods are often applied in clinical
studies simply because they have become available. If the
clinical problem itself is poorly defined and obfuscated by marketing strategies, the focus of neurobiological
research is set for random effort and misunderstanding.
Research designs and strategies
An intervention can be either evaluated by a single
large
trial or by a series of smaller trials (96). The
current
standard of therapeutic trial in psychiatry
nowadays is
represented by the US large, multi-center,
controlled,
randomized trial with very specific inclusion and exclu-
sion criteria, but little attention to the clinical
history
of patients (42). Not surprisingly, however, the
conclu-
sions that can be drawn by these trials are very
limited
and offer trivial variations on tired themes. An
increasing
number of researchers has no familiarity with the
clinical
process and their research indeed reflects their naivet é .
In the meanwhile, pharmaceutical medicine is taking
full
advantage of the clinical vacuum, providing
directions
with massive doses of propaganda.
This process of regaining intellectual independence not only involves researchers, but each clinician and society member. I recently refused to pay the American Psychiatric Association annual dues, because of the dramatic inadequacy of the society in handling the issues related to conflict of interest and clinical
challenges. Such stands have personal costs, but
are in
line with the expression of intellectual freedom.
Conclusions
Often, in their clinical practice, psychiatrists
use sophisticated forms of clinical judgment that are suitable
for clinical challenges, but are not addressed by
current research strategies. A renewed interest in the
process of
clinical judgment (56) and in psychopathology as a
science (8) may entail solution to the current impasse
of
psychiatric research and practice. The notion of
psychiatric disease is not in line with the changed
spectrum of
health and the complex interplay of biological and
psychosocial factors (56). Evidence-based medicine
leads to
undertreatment, overtreatment or mistreatment, and
is not
geared to the complexity of clinical situations.
Alterna-
tive models that articulate the clinical process
may pave
the way to a renewal of the appraisal of clinical judg-
ment in psychiatry.
Acknowledgements
— This paper is based on a lecture delivered at the Annual Finnish Psychiatric Association meeting in Helsinki, 2011.
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