Possibilities of Applying Non-invasive Multichannel Electrical
Stimulation Technology for Treatment Neuropsychiatric Diseases
Timur S. Petrenko
1a
, Vladimir S. Kublanov
1b
, Konstantin Ju. Retyunskiy
1c
and Roman A. Sherstobitov
2d
1
Ural Federal University, Yekaterinburg, Russian Federation
2
Ural State Medical University, Yekaterinburg, Russian Federation
Keywords: Neuroelectrstimulation, Neuropsychiatric Diseases, Autonomic Nervous System.
Abstract: The article discusses some of the mechanisms of clinical effects when using the technology of non-invasive
multichannel electrical stimulation of the neural formations of the neck in patients with diseases of the central
nervous system of the neuropsychiatric profile. When implementing this technology in all clinical examples,
"SYMPATHOCOR-01" device was used, which provides stimulation of neural formations of the neck using
a spatially distributed field of monopolar current pulses.
1 INTRODUCTION
The rapid spread throughout the world of diseases of
the central and peripheral nervous system determines
the relevance of the search for effective
pathophysiologically-based therapeutic and
rehabilitation approaches to their correction. In most
cases, the pathogenetic links of such diseases are
realized through dysregulation of the autonomic
nervous system (Licznerski, Duman, 2013).
Particularly relevant today are diseases associated
with organic damage to the central nervous system.
Existing methods of treatment of central nervous
system diseases suggest the use of pharmacological
agents with high risks of unwanted and side effects
(Watanabe et al, 2010). An alternative approach may
be to stimulate the structures of the central and
peripheral nervous system using multi-electrode
systems of neuroelectrostimulation . The activation of
different parts of the nervous system in this way
allows you to get a variety of clinical effects,
including may affect somatic processes in the body
(Danilov et al, 2015).
To create effective medical technologies in the
treatment of neuropsychiatric disorders, it is
a
https://orcid.org/0000-0001-7328-9894
b
https://orcid.org/0000-0001-6584-4544
c
https://orcid.org/0000-0003-1302-483X
d
https://orcid.org/0000-0002-090-407X
necessary to understand the physiological
mechanisms of the formation of the clinical result,
depending on the therapeutic agents used.
This work presents the results of studies of
medical technologies in which the therapeutic effect
is achieved through the use of a
neuroelectrostimulator "SYMPATHOCOR-01"
device (Kublanov, Babich, Petrenko, 2018)
2 RESULTS OF CLINICAL
STUDIES
2.1 Attention Deficit Hyperactivity
Disorder (ADHD)
In the period from 2007 to 2014, we conducted a
study for children with ADHD. Participated 90
children of both gender and ages from 4 to 10 years
that have clinic features of the ADHD syndrome
(according to the ICD-10). The degree of the ADHD
symptoms was estimated by the psychometric scale
ADHD-RS-IV (Attention-Deficit Hyperactivity
Disorders Rating Scale IV). The attention level was
estimated by means of the psycho-physiological test
Petrenko, T., Kublanov, V., Retyunskiy, K. and Sherstobitov, R.
Possibilities of Applying Non-invasive Multichannel Electrical Stimulation Technology for Treatment Neuropsychiatric Diseases.
DOI: 10.5220/0009377304210426
In Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - Volume 1: BIODEVICES, pages 421-426
ISBN: 978-989-758-398-8; ISSN: 2184-4305
Copyright
c
2022 by SCITEPRESS Science and Technology Publications, Lda. All rights reserved
421
T.O.V.A. (the Test Of Variability Of Attention).
Impairments of the brain bioelectric activity (of
children with the ADHD) were verified by the
electro-encephalographic investigation. In such
children, increasing the theta- and delta-activity was
observed and/or impairment of the main (alpha)
rhythm under the loading tests. For treating children,
a complex therapy was applied: in group I (of 37
participants), neuromethabolic remedies were used;
in group II (of 55 participants), neuromethabolic was
used together with the neurostimulation device.
The best result has been achieved in the second
group of children, in which during the treating
process, both the complex medicated therapy and
neurostimulation were used. The dynamic of ADHD
overall score was: in I group from 2.11±0.34 to
1.88±0.11; in II group from 2.08±0.45 to 1.22±0.17.
The dynamic of attention level by TOVA was: for
omission error in I group from 28.5±4.3 to 21.1±2.5
and in II group from 32.5±4.3 to 8.7±2.7; for
commission error in I group from 19.2±4.9 to
18.8±2.2 and in II group from 23.5±4.3 to 8.7±3.1.
Catamnesis observation after children of the second
group has proved stability of the achieved results two
years later from the treatment beginning (Kublanov,
Petrenko, Retyunskiy, 2016).
2.2 Psychosomatic Disorders
In 2018 we conducted study for children with
psychosomatic disorders. Participated 83 children of
both sexes from 5 to 14 years old with following
diagnosis: bronchial asthma (n = 34), atopic
dermatitis (n = 27), gastroesophageal reflux disease
(n = 22). Data on relevant diseases were evaluated by
clinical methods. Baseline ANS was assessed by the
heart rate variability (HRV). All children were
randomly divided into two groups (n1 = 41; n2 = 42).
The entire observation period was 21 days. Both
groups received standard medical therapy prescribed
by a pediatrician. The second group was given
additional neurostimulation daily therapy for 2
weeks. Evaluation of the state of children after the
observation period was carried out according to the
same criteria as the original one.
Clinical trials showed that most children (78%)
had increased baseline ANS activity, which
correlated with the severity of somatic
manifestations. After two weeks of complex therapy
improving the clinical condition was observed in
most children in the group with
neuroelectrostimulation device. This is consistent
with the HRV analysis: LF/HF ratio for the first group
changed from 7.71±4.54 to 5.82±6.28; for the second
group – significantly decreases from 8.21±5.82 to
2.12±4.53.
Adding non-invasive correction of ANS to
standard medical therapy allows reducing the
condition of children with psychosomatic diseases
(Petrenko, 2019).
2.3 Anxiety Disorder
In 2015 we have investigated the effectiveness of
the method of dynamic correction of activity of the
sympathetic nerves system by using neurostimulation
device in comparison of standard medications
approach in patients with panic disorder.
The study included 40 patients from clinical base
of the Department of Psychiatry of Ural State Medical
University with diagnosed ‘panic disorder’. All
patients were randomly divided into two equal group.
Patients from the first group received antidepressant
– escitalopram 10mg once daily. Patients from the
second received a course of ten procedures of
neuroelectrostimulation. The period of therapy and
dynamic follow-up was six weeks. The Hamilton
(HAM-A) and Sheehan (SPRAS) anxiety scales were
used to determine changes in state of patients.
For patients from the first group were follow
changes by scales for the six-weeks period: HAM-A
(from 26.35±7.53 to 15.35±4.20), SPRAS (from
72.83±21.41 to 39.27±8.13). For patients from the
second group: HAM-A (from 27.49±7.32 to
7.30±2.05), SPRAS (from 74.33±23.42 to
24.22±5.29).
The neurostimulation therapy in comparison
antidepressant was a faster onset of the therapeutic
effect, a faster reduction quantity and severity of
panic attacks during the whole period of observation
(Petrenko, Retjunskiy, Kublanov, 2018).
2.4 Organic Amnestic Syndrome
In 2016 we conducted study for patient with organic
amnesic syndrome. Three patients with clinical
organic amnestic syndrome resulting of brain damage
(poisoning, alcohol and trauma) held inpatient
treatment for at least 12 months in the neurology or
psychiatry department without a significantly
improvement.
Patients were assessed using the clinical method,
neuropsychological scales: Frontal Assessment
Batter (FAB), Montreal Cognitive Assessmnet
(MCA), Mini-Mental State (MMSE), MRI, EEG,
Heart rate variability (HRV). The initial clinical state
of the patients was severe, with structural damage on
MRI and low rates of neuropsychological tests. As a
NDNSNT 2020 - Special Session on Non-invasive Diagnosis and Neuro-stimulation in Neurorehabilitation Tasks
422
result of seven Neurostimulation procedures
improved significantly neuropsychological
assessments: FAB (from 5,7±3,1 to 12±4,0); MCA
(from 11,3±3,0 to 16,3±4,0); MMSE (from 15,3±6,2
to 21,3±8,3). EEG comparison analysis showed an
increase in power of Alpha waves and power
reduction of Delta waves on all leads. HRV
comparison analysis showed an increase total power
and the change in autonomic balance (Retyunskiy,
2017).
Thus, the resulting clinical effects in the described
cases required a thorough study of the mechanisms of
action of multichannel electrical stimulation of the
nerve formations of the neck. We conducted
experimental studies on laboratory animals, as well as
fundamental clinical studies using neuroimaging
technologies.
3 EXPERIMENTAL RESEARCH
To study changes at the cellular and tissue levels, as
well as behavioral functions in 2009-2010. We
conducted experimental studies of the effectiveness
of stimulation using the above field of current pulses
in laboratory rats to correct disorders caused by
immobilization stress and ischemia of the leg
muscles. For stimulation, the "SYMPATHOCOR-
01V" device was used, the parameters of which were
modified taking into account the difference in the
blood supply system of a laboratory rat with respect
to humans (Kublanov et al, 2010).
After exposure to immobilization stress, rats were
less likely to switch between elements of an open
field polygon, consisting of 25 elements and equipped
with a vision system. This was manifested by a
decrease in the length of the trajectories of movement
and a decrease in the motor activity of rats. The
application of the electrical stimulation procedure
after immobilization stress was accompanied by the
restoration of these characteristics.
Also, stress parameters were noted by blood
biochemical parameters (AST, ALT, LDH, MSM),
which corresponds to the state of endogenous
intoxication. After exposure to current pulses by the
field, blood biochemical parameters returned to the
level of intact animals.
When studying the morphological picture of
sections of ischemic muscle of rats, it was noted that
after exposure to electrical stimulation of the cervical
ganglia there is a rapid restoration of blood supply
due to the growth of capillaries of collateral arterial
systems.
Thus, neuroelectrostimulation helps to reduce the
negative effects of immobilization stress and
ischemic muscle damage, which is accompanied by:
1) at the molecular-cellular level - by a decrease
in metabolites and endogenous intoxication products
characteristic of stress, which the body does not
manage to utilize during immobilization stress and
ischemic muscle damage;
2) at the tissue level - stimulation of angiogenesis,
restoration of blood supply and contractile apparatus
in the ischemic muscle tissue of the hind tibia of rats;
3) at the level of the body - a change in the
behavioral reaction, manifested in increased
adaptation to immobilization stress (Kublanov et al,
2010).
4 FUNDAMENTAL RESEARCH
Obtaining new knowledge about the mechanisms for
implementing the clinical effects of
neuroelectrostimulation essentially belongs to the
category of basic research. In our case, the studies
were performed in the form of clinical cases with a
detailed study of the results of functional
neuroimaging.
4.1 Study of SPECT and EEG in
Patients with Incurable Forms of
Epilepsy
Confirmation of nonspecific changes in brain tissue
after dynamic correction of the activity of the
sympathetic nervous system using the
"SYMPATHOCOR-01" device is the result of
changes in single-photon emission computed
tomography (SPECT) and electroencephalogram
(EEG) in patients suffering from epilepsy.
To illustrate, the data of the clinical case of patient
D., 20 years old, suffering from a cryptogenic
temporomandibular form of epilepsy are presented.
Before treatment in patient D., the number of
epileptic seizures was 12–16 per month. Before
treatment, according to SPECT, the asymmetry of the
perfusion marker accumulation between different
regions of the cerebral cortex was determined up to
20%. According to the EEG, epileptiform activity in
the form of sharp waves and spikes in the
frontotemporal regions of variable lateralization,
more often on the right. After 5 treatment procedures,
patient D. did not have epilepsy attacks for three
weeks, and three attacks in the following weeks.
Subjective well-being was noted (headaches
Possibilities of Applying Non-invasive Multichannel Electrical Stimulation Technology for Treatment Neuropsychiatric Diseases
423
disappeared, sleep improved, appetite, the level of
anxiety and aggressiveness decreased). According to
SPECT, in cross sections, the asymmetry of perfusion
marker accumulation is up to 6%. According to EEG
data, moderate diffuse changes in BEA with signs of
increased synchronizing effects of mid-stem
structures, epileptiform activity in the form of sharp
waves and spikes in the lateral regions of variable
lateralization in the left hemisphere, epileptiform
activity of the previous localization, but
quantitatively less (Kublanov et al, 2004).
4.2 Study of RS-fMRI and
Multichannel EEG in Patients with
Depressive Disorder
We conducted pilot studies of changes in the
functioning of the basic working network of the brain
according to functional magnetic resonance imaging
of resting state (RS-fMRI). The study involved 10
patients with established depressive disorder. The use
of neuroelectrostimulation with the
"SYMPATHOCOR-01" device in addition to
pharmacotherapy prescribed by a doctor turned out to
be more effective according to clinical data (self-test
of symptoms of Beck depression, Hamilton
depression scale) compared with patients who did not
receive electrical stimulation.
According to the analysis of fMRI data after 5
days of neuroelectrostimulation, a significant
improvement in the functional connections of the
medial prefrontal cortex with other brain regions was
noted. This indicates an improvement in connectivity,
especially due to the activation of the premotor zones
of the cerebral cortex.
The results of an electrophysiological study
according to multichannel EEG are consistent with
the results of the analysis of functional connectivity.
In all clinical cases, after a course of
neuroelectrostimulation, a change in the asymmetry
of the power distribution of the main EEG rhythms in
the direction of harmonization was noted; expansion
of variability of activation zones; improving
bioelectric synchronization of various parts of the
cortex (Kublanov, Petrenko, Efimcev, 2019).
Thus, the results of experimental and fundamental
studies made it possible to formulate a theoretical
justification for the selection of stimulation targets.
5 THEORETICAL
SUBSTANTIATION OF THE
CHOICE OF TARGETS OF
NEUROELECTRIC
STIMULATION
The regulation of many physiological processes in the
human body is carried out by the central nervous
system (CNS) and the autonomic nervous system
(ANS). Centers for the regulation of vital functions
are represented by the nuclei of the brain stem,
midbrain, bridge and cerebellum, as well as the
vegetative nuclei of the spinal cord and brain. Most
of the pathways of these centers are located in the
neck.
Somatic innervation of the neck is carried out by
the cervical spinal nerves, which form a massive
cervical plexus, located on the anterolateral surface of
the deep muscles of the neck. Front and side, it is
covered by the sternocleidomastoid muscle.
The composition of the spinal nerves includes
efferent and afferent fibers. Efferent fibers begin from
the nuclei of the anterior horns of the spinal cord.
Afferent fibers pass through the posterior horns of the
spinal cord and end in the sensitive nuclei of the brain
stem and reticular formation. The reticular formation
is involved in the processing of sensory information:
it has a selective activating effect on the cerebral
cortex or an inhibitory effect on spinal cord motor
neurons, delaying habitual or repeated impulses.
Using this mechanism, somatomotor and self-
sensitive control, neuroendocrine transduction and
coordination of the work of different centers of the
brain stem are carried out.
On the deep muscles of the neck is the cervical
sympathetic trunk, which is represented by three
nodes. Nerve fibers approach the cervical nodes from
the autonomic nuclei of the lateral substance of the
thoracic spinal cord. Seven main branches departing
from the upper cervical node, containing
postganglionic fibers and propagating along the
external and internal carotid arteries, as part of the
fibers of the glossopharyngeal, vagal and sublingual
nerves. Thus, the sympathetic innervation of the
vessels of the head and neck, the parotid and thyroid
glands is carried out (Netter, Frank, 2014).
The middle cervical node (intermittent), located at
the level of the VI cervical vertebra at the intersection
of the lower thyroid and common carotid arteries. The
lower cervical (stellate) node is located above the
subclavian artery and behind the vertebral artery.
These nodes provide sympathetic innervation of the
vessels of the shoulder girdle, spine and meninges of
NDNSNT 2020 - Special Session on Non-invasive Diagnosis and Neuro-stimulation in Neurorehabilitation Tasks
424
the spinal cord. Cardiac nerves participating in the
formation of the cardiac plexus depart from the
cervical nodes. From the upper node - the upper
cardiac nerve, is involved in the formation of the
superficial cardiac plexus. From the middle and lower
nodes - the middle and lower cardiac nerves,
respectively, involved in the formation of the deep
cardiac plexus. With the help of these plexuses,
sympathetic regulation of cardiac activity is carried
out (Netter, Frank, 2014).
In the course of the internal jugular vein, first the
internal carotid, and then the common carotid artery,
the vagus nerve is located, forming a neurovascular
bundle of the neck. The vagus nerve, being mixed,
originates from the motor, sensory and
parasympathetic nuclei of the brain stem. The motor
nucleus (nucleus ambiguous), common with the
glossopharyngeal and accessory nerves, has motor
axons that innervate the muscles of the soft palate,
pharynx, and larynx.
The dorsal nucleus (nucleus dorsalis) has
parasympathetic fibers. Afferent impulses in this
nucleus come from the hypothalamus, olfactory
system, and autonomic centers of the reticular
formation. The efferent impulses of the dorsal
nucleus travel through the postganglionic fibers to the
smooth muscles of the lungs, heart, and
gastrointestinal tract. Thus, parasympathetic
regulation of respiration, palpitations and digestion is
carried out.
In the area of bifurcation of the common carotid
artery, there is a carotid glomerulus, which is a
capillary clot with a large number of chemo- and
baroreceptors. Impulses from these receptors are
transmitted along the glossopharyngeal nerve to the
nucleus of the single pathway (nucleus tractus
solitarii), common to the facial, glossopharyngeal and
vagus nerves. Similar chemoreceptors are located on
the aortic arch and transmit their impulses in the
composition of afferent fibers of the vagus nerve
along the same path. Thus, the regulation of blood
pressure and oxygen tension in the blood is carried
out (Moore, 2013)
Nerve formations in the neck are closely
connected with the brain stem, through which they
have bilateral connections with the bridge, midbrain,
cerebellum, thalamus, hypothalamus and cerebral
cortex. The presence of these connections ensures the
participation of nerve formations of the neck in the
analysis of sensory irritations, regulation of muscle
tone, autonomic and higher integrative functions.
Based on the foregoing, the cervical ganglia of the
sympathetic trunk, the cervical plexus of the spinal
nerves, the branches of the X and XI cranial nerves
and the nerve structures that enter them can act as
targets of stimulation, which significantly expands
the possibilities of neurostimulation of various
processes in the brain tissue. The neck area as a
“target” of neurostimulation seems to be a very
interesting and promising choice.
6 DISCUSSION
Thus, as a result of experimental and fundamental
studies, the main hypotheses were formulated for
realizing the clinical effectiveness of the technology
of multichannel neuroelectrostimulation of neural
formations of the neck in the treatment of
neuropsychiatric disorders.
Due to the impact on the nodes of the sympathetic
trunk and the internal carotid plexus, neurogenic
regulation of cerebral blood flow is performed due to
a change in the tone of the cerebral vessels of various
calibers: from the main arteries to the
microvasculature. The leading role in this process
belongs to the superior cervical stellate ganglion.
The impact of a focused field of electrical
impulses in the neck spreads in the form of electrical
impulses to the sublingual, glossopharyngeal and
vagus nerves, rise to the corresponding nuclei of the
brain stem, reaching the cerebellum, bridge and
frontal cortex. Thus, deep stimulation of the mid-stem
structures of the brain is performed with the release
of a large number of neurotransmitters. Under such
conditions, synoptic transmission and the
construction of new neural and glial networks are
greatly facilitated, metabolic processes both in
neurons and in neuroglia are improved. The
destruction of stagnant neural networks, as well as
pathological determinants and systems, is facilitated.
In clinical practice, multichannel
neuroelectrostimulation technology can be used not
only in the treatment of diseases of the
neuropsychiatric profile, but also in the treatment of
vegetative-vascular dystonia, headaches of various
origins, including migraine, hypertension,
sensorineural hearing loss, degenerative diseases of
the eye, neuropathies of various origins,
hyperhidrosis syndrome, orthostatic hypotension
syndrome and postural tachycardia, vestibulopathic
syndrome, as well as in the rehabilitation of patients
after stroke that one.
Possibilities of Applying Non-invasive Multichannel Electrical Stimulation Technology for Treatment Neuropsychiatric Diseases
425
7 CONCLUSIONS
Thus, further research is needed on the technology of
multichannel electrostimulation of neck neural
structure by means functional neuroimaging to
expand the scope of the medical devices created on its
basis. The success of such tasks can be achieved
through the interaction of biologists, specialists in the
field of medical physics, doctors and engineers.
ACKNOWLEDGEMENTS
The reported study was funded by RFBR according
to the research project 18-29-02052 and supported
by Act 211 Government of the Russian Federation,
contract 02.A03.21.0006.
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