Brain Behavior & Immunity - Health,
Journal Year:
2024,
Volume and Issue:
43, P. 100920 - 100920
Published: Dec. 5, 2024
Delirium
is
a
highly
prevalent
neuropsychiatric
syndrome
characterised
by
acute
and
fluctuating
impairments
in
attention
cognition.
Mechanisms
driving
delirium
are
poorly
understood
but
it
has
been
suggested
that
blood
cytokines
chemokines
cross
the
brain
barrier
during
delirium,
directly
impairing
function.
It
not
known
whether
these
molecules
reach
higher
levels
when
cerebrospinal
fluid
(BCSFB)
impaired.
Here,
human
hip-fracture
patients,
we
tested
influence
of
BCSFB
integrity
on
CSF
assessed
their
association
with
delirium.
IP-10,
eotaxin,
eotaxin
3
TARC
showed
weak
to
moderate
correlations
permeability,
as
measured
Qalbumin
ratio,
while
MCP1,
IL-8,
MIP1α
MIP1β
no
significant
correlation.
Chemokines
were
associated
univariate
analysis
or
stratified
dementia
status,
exploratory
analyses
elevated
Eotaxin
(CCL11)
(CCL3)
Modelling
systemic
inflammation,
used
bacterial
LPS
(250
μg/kg)
sterile
laparotomy
surgery
mice
demonstrate
de
novo
synthesis
at
choroid
plexus
(CP)
microvasculature.
Gene
expression
data
CP-enriched
Il1b,
Tnfa,
Cxcl1
Ccl3
both
models
immunohistochemistry
cytokine
chemokine
CP
stromal
(IL-1β,
CCL2/MCP1)
epithelial
cells
(CXCL10/IP-10)
Larger
studies
required
confirm
findings
associations
permeability
Preclinical
warranted
determine
might
play
role
pathophysiology
Alzheimer s & Dementia,
Journal Year:
2023,
Volume and Issue:
20(1), P. 183 - 194
Published: July 31, 2023
Delirium,
a
common
syndrome
with
heterogeneous
etiologies
and
clinical
presentations,
is
associated
poor
long-term
outcomes.
Recording
analyzing
all
delirium
equally
could
be
hindering
the
field's
understanding
of
pathophysiology
identification
targeted
treatments.
Current
subtyping
methods
reflect
clinically
evident
features
but
likely
do
not
account
for
underlying
biology.
Academic Emergency Medicine,
Journal Year:
2024,
Volume and Issue:
31(10), P. 1014 - 1036
Published: May 16, 2024
Abstract
Introduction
Geriatric
emergency
department
(ED)
guidelines
emphasize
timely
identification
of
delirium.
This
article
updates
previous
diagnostic
accuracy
systematic
reviews
history,
physical
examination,
laboratory
testing,
and
ED
screening
instruments
for
the
diagnosis
delirium
as
well
test–treatment
thresholds
screening.
Methods
We
conducted
a
review
to
quantify
approaches
identify
Studies
were
included
if
they
described
adults
aged
60
or
older
evaluated
in
setting
with
an
index
test
compared
acceptable
criterion
standard
Data
extracted
studies
reviewed
risk
bias.
When
appropriate,
we
meta‐analysis
estimated
thresholds.
Results
Full‐text
was
performed
on
55
27
current
analysis.
No
identified
exploring
findings
history
While
two
reported
clinicians
accurately
rule
delirium,
clinician
gestalt
is
inadequate
out
report
three
that
quantified
4
A's
Test
(4AT)
(pooled
positive
likelihood
ratio
[LR+]
7.5,
95%
confidence
interval
[CI]
2.7–20.7)
negative
[LR−]
0.18,
CI
0.09–0.34)
also
Abbreviated
Mental
Test‐4
(AMT‐4)
found
pooled
LR+
(4.3,
2.4–7.8)
lower
than
observed
4AT,
but
LR−
(0.22,
0.05–1)
similar.
Based
one
study
Confusion
Assessment
Method
Intensive
Care
Unit
(CAM‐ICU)
superior
instrument
The
calculated
threshold
2%
treatment
11%.
Conclusions
quantitative
examination
virtually
unexplored.
4AT
has
largest
quantity
ED‐based
research.
Other
may
more
If
goal
then
CAM‐ICU
brief
CAM
modified
are
instruments,
although
these
tools
based
single‐center
studies.
To
Delirium
Triage
Screen
study.
Age and Ageing,
Journal Year:
2024,
Volume and Issue:
53(4)
Published: April 1, 2024
Abstract
Objectives
Delirium
is
most
often
reported
as
present
or
absent.
Patients
with
symptoms
falling
short
of
the
diagnostic
criteria
for
delirium
fall
into
‘no
delirium’
‘control’
groups.
This
binary
classification
neglects
individual
and
may
be
hindering
identification
pathophysiology
underlying
delirium.
systematic
review
investigates
which
are
by
studies
postoperative
in
adults.
Methods
Medline,
EMBASE
Web
Science
databases
were
searched
on
03
June
2021
06
April
2023.
Two
reviewers
independently
examined
titles
abstracts.
Each
paper
was
screened
duplicate
conflicting
decisions
settled
consensus
discussion.
Data
extracted,
qualitatively
synthesised
narratively
reported.
All
included
quality
assessed.
Results
These
searches
yielded
4,367
results.
After
title
abstract
screening,
694
full-text
reviewed,
62
deemed
eligible
inclusion.
details
11,377
patients
including
2,049
In
total,
78
differently
described
The
inattention
(N
=
29),
disorientation
27),
psychomotor
agitation/retardation
22),
hallucination
22)
memory
impairment
18).
Notably,
agitation
hallucinations
not
listed
current
Diagnostic
Statistical
Manual
Mental
Disorders-5-Text
Revision
definition.
Conclusions
this
cover
domains
attention,
awareness,
other
cognitive
changes.
There
a
lack
standardisation
terms,
many
recorded
synonyms
each
other.
provides
library
symptoms,
used
to
inform
future
reporting.
Brain Communications,
Journal Year:
2024,
Volume and Issue:
6(5)
Published: Jan. 1, 2024
Abstract
Delirium
is
a
common
and
acute
neurocognitive
disorder
in
older
adults
associated
with
increased
risk
of
dementia
death.
Understanding
the
interaction
between
brain
vulnerability
stressors
key
to
delirium
pathophysiology,
but
neurophysiology
not
well
defined.
This
study
aimed
identify
pre-operative
resting-state
EEG
event-related
potential
markers
incident
its
subtypes
undergoing
elective
cardiac
procedures.
prospective
observational
included
58
participants
(mean
age
=
75.6
years,
SD
7.1;
46
male/12
female);
COVID-19
restrictions
limited
recruitment.
Baseline
assessments
were
conducted
weeks
before
procedures
4-min
recording
(2-min
eyes
open
2-min
closed),
5-min
frequency
auditory
oddball
paradigm
recording,
cognitive
depression
examinations.
Periodic
peak
power,
bandwidth
measures,
aperiodic
offsets
exponents
derived
from
data.
Event-related
potentials
measured
as
mean
component
amplitudes
(first
positive
component,
first
negative
early
third
mismatch
negativity)
following
standard
deviant
stimuli.
Incident
occurred
21
participants:
10
hypoactive,
6
mixed,
5
hyperactive.
hyperactive
was
higher
(P
0.045,
d
1.0)
closed
0.036,
offsets.
mixed
significantly
larger
deviants
0.037,
standards
0.025,
0.041,
0.9).
Other
statistically
non-significant
moderate-to-large
effects
observed
relation
all
subtypes.
We
report
evidence
neurophysiological
prior
adults.
Despite
being
underpowered
due
COVID-19–related
recruitment
impacts,
these
findings
indicate
dysfunction
neural
excitation/inhibition
balance
different
warrant
further
investigation
on
scale.
Seminars in Neurology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 23, 2024
Despite
the
use
of
multidomain
prevention
strategies,
delirium
still
frequently
occurs
in
hospitalized
adults.
With
often
associated
with
undesirable
symptoms
and
deleterious
outcomes,
including
cognitive
decline,
treatment
is
important.
Risk-factor
reduction
protocolized
multidomain,
nonpharmacologic
bundles
remain
mainstay
treatment.
There
a
current
lack
strong
evidence
to
suggest
any
pharmacologic
intervention
treat
will
help
resolve
it
faster,
reduce
its
(other
than
agitation),
facilitate
hospital
throughput,
or
improve
post-hospital
outcomes
long-term
function.
exception
dexmedetomidine
as
severe
delirium-associated
agitation
ICU,
practice
guidelines
do
not
recommend
routine
population.
Future
research
should
focus
on
identifying
evaluating
new
interventions
addressing
key
challenges
gaps
surrounding
research.
Australasian Journal on Ageing,
Journal Year:
2024,
Volume and Issue:
43(2), P. 415 - 419
Published: Feb. 28, 2024
Abstract
Objectives
Following
a
user‐centred
redesign
and
refinement
process
of
an
electronic
delirium
screening
tool
(eDIS‐MED),
further
accuracy
assessment
was
performed
prior
to
anticipated
testing
in
the
clinical
setting.
Methods
Content
validity
each
existing
questions
evaluated
by
expert
group
domains
clarity,
relevance
importance.
Questions
with
Validity
Index
(CVI)
<0.80
were
reviewed
development
for
potential
revision.
Items
CVI
<0.70
discarded.
Next,
face
entirety
tests
conducted
readability
measured.
Results
A
panel
five
experts
test
battery
comprising
eDIS‐MED.
The
content
endorsed
61
items.
overall
scale
0.92.
Eighty‐eight
per
cent
responses
regard
question
relevancy,
usefulness
appropriateness
positive.
deemed
fifth
grade
level
very
easy
read.
Conclusions
revised
shown
be
accurate
according
group.
validation
study
is
planned.
Critical Care Medicine,
Journal Year:
2024,
Volume and Issue:
52(8), P. 1285 - 1294
Published: July 15, 2024
Delirium
is
a
heterogeneous
syndrome
characterized
by
an
acute
change
in
level
of
consciousness
that
associated
with
inattention
and
disorganized
thinking.
affects
most
critically
ill
patients
poor
patient-oriented
outcomes
such
as
increased
mortality,
longer
ICU
hospital
length
stay,
worse
long-term
cognitive
outcomes.
The
concept
delirium
its
subtypes
has
existed
since
nearly
the
beginning
recorded
medical
literature,
yet
robust
therapies
have
to
be
identified.
Analogous
other
critical
illness
syndromes,
we
suspect
lack
identified
stems
from
patient
heterogeneity
prior
subtyping
efforts
do
not
capture
underlying
etiology
delirium.
time
come
leverage
machine
learning
approaches,
supervised
unsupervised
clustering,
identify
clinical
pathophysiological
distinct
clusters
will
likely
respond
differently
various
interventions.
We
use
sedation
example
how
precision
can
applied
patients,
highlighting
fact
while
for
some
sedative
drug
may
cause
delirium,
another
cohort
specific
treatment.
Finally,
conclude
proposition
move
away
term
rather
focus
on
treatable
traits
allow
tested.
Seminars in Neurology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 3, 2024
Consultation
liaison
psychiatrists
are
frequently
asked
to
evaluate
patients
with
altered
mental
status
(AMS).
Psychiatrists
have
unique
perspectives
and
approaches
care
for
confused
patients,
particularly
optimizing
facilitation
of
maintaining
vigilance
diagnostic
overshadowing.
also
offer
expertise
in
primary
psychiatric
illnesses
that
can
overlap
AMS,
the
most
common
etiology
AMS
is
delirium.
In
this
article,
we
provide
a
consultation
psychiatrist
perspective
on
related
conditions
addition
Manic
psychotic
episodes
secondary
etiologies,
some
symptoms
Catatonia,
neuroleptic
malignant
syndrome,
serotonin
syndrome
potentially
fatal
emergencies,
require
prompt
index
suspicion
optimize
clinical
outcomes.
Trauma
sequelae,
functional
neurologic
disorders,
dissociative
disorders
present
as
puzzling
cases
care.
Additionally,
sometimes
due
substance
intoxication
withdrawal
hospital.
A
nonstigmatizing
approach
evaluation
management
delirium
ensure
optimal
patient
experiences