Paul
Manley: The Theobalds Natural Health Centre, 46 Theobalds Road, London WC1X 8NW
Call 07925 616 753 for an appointment. Email Paul for advice - click
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The following
is an abridged version of an article published by Bastyr
University, Journal of Naturopathic Medicine ( Oregon ),
The New Zealand Journal of Osteopathy and by Temple University
( Philadelphia), Frontier Perspectives, all 1993-1995.
Cranial osteopathy
and Pediatric Craniopathy.
Author: Paul Manley D.O. (ESO 1980), MAO
In one way this short
paper describes mechanisms by which infants may suffer
in the short and the long term from cranial abormalities,
in another, it alludes to methods of diagnosis and manual
treatment which can provide relief from such problems.
Enhanced Cranial Manipulation
(ECM) is a 'nuts and bolts' approach to cranial problems
and represents a unique collection of manipulative techniques
as applied to the cranium. This is in contrast to the esoteric
approach fostered by the ubiquitous practitioners of Cranio-sacral
therapy etc..
The object of
ECM is to optimize the elastance
co-efficient of the cranium. This is acheived via
manual de-compression techniques applied directly to the
cranium. Stimulation of the venous drainage by increasing
the circulation of the scalp is also a beneficial by-product
of treatment.
The techniques are appropriate
for cranial and autonomic symptoms
only. They are not used for fixing a 'low-back pain'
for example, other, more efficient, traditional techniques
can deal with such problems. Nor is it used for 'past
life regressions' or other similarly dubious practices
such as 'functional tecnique. Cranial Osteopathy, when
it began in
the 1940's, was an area of exploration, a fascination with
the notion that the cranium can influence our health and
sense of being. Miraculous tales were told and tutors took
up the flag of nebulousness with the fore-knowledge that
their arguments would be relatively unassailable due to
the complexity of the subject. Ubfuscation, ignorance and
laziness on the part of the tutors and their followers
has ultimately led to an emasculation of what was once
a subject worthy of study.
There is much research out
there, sufficient to convince even the hardest
cynic and esoteric neophyte alike that the proposition that
a cranium has an unfortunate tendency to rigidify, thereby
producing symptoms of great importance is both feasible and
applicable.
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The following salient points must be considered:
1. The
cerebral capsule (bone and membrane) changes in degrees of
resilience due to the changes in ICP therein. The
vault bones only grow in response to internal expansive pressures
as the brain grows.
2. Intra-cranial pressure
( ICP ) varies in response to the following:
a. The
rate of cerebro-spinal fluid ( CSF ) production.
b. The rate of CSF drainage.
c. The elasticity of the cerebral capsule.
d. The degree of responsiveness of the neurohumoral mechanisms
which react with ICP fluctuations.
3. Increased ICP,
even of short duration, can compromise cerebral circulation
especially in the region of the brain stem activational and
regulatory areas.
4. The "elastic
coefficient" or elasticity of the cerebral capsule exerts
a damping or shock absorbing action on ICP variations, thus
providing a buffer between the CSF and the CNS.
5. The
lower the elasticity of the cranium, the higher the ICP rises.
During
the passage of the infant through the birth canal, the head deforms,
causing overlap of the coronal, sagittal and
lambdoidal sutures. This overlapping usually disappears
during the first three days of life. It is most pronounced in
premature infants due to the wideness of the sutures but nonetheless
appears consistently in the normal neonate.
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Figure
2
Compression of the Superior Sagittal sinus due to
external pressure on the Occipital
bone |
Lambdoidal overlap and superior
sagittal sinus ( SSS ) compression
may be produced merely by laying the infant on its back, head
resting on its occipital bone. The pressure on the occipital
bone effectively blocks the SSS. The overlap is accentuated
when the infant is supine for prolonged periods. The compression
of the SSS produces slowing in the cerebral circulation time
and diverts drainage into the deep venous system. Due to the
thinness of these vein walls at this age, intracerebral hemorrhage
can occur and is one of the major causes of death in infants,
especially
preterm.
The
practitioner should be capable of adequately differentiating between
potential contributary factors.
Craniosynostosis is a term which
applies to the types of deformity affecting the shape and elastic
function of the skull resulting from the premature closure of one
or more sutures. This can occur in response to direct trauma such
as forceps delivery, constant moulding pressures such as sleeping
on the same side of the head, or from congenital or genetic origins.
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Growth
responses to premature suture closure.

Figure
3
Growth
responses to premature suture closure
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figure
3: Legend
Solid
line ____ normal
Dotted line ..... premature
closure
Dashed line - - - secondary compensation
(expansion)
A:
Normal
B: Sagittal synostosis
C: Unilateral coronal closure
D: Bilateral coronal closure
Fig.3 illustrates
the various configurations most likely to occur. The synostotic
patterns can persist into adulthood and may result in gross
deformity or in sutural fixations. The incidence of mental
and/or motor deficit is high with this pathology. This is
due to the effect on the ICP either by hampering drainage
of CSF or by decreased elasticity failing to allow for optimal
ICP fluctuations. Palpation of Lambda (the junction of the
parietal and occipital bones) in order to ascertain the prescence
of overlap is very important. Ridging of the sagittal and
frontal sutures is generally present and palpable in premature
closure, even into adulthood.
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Figure
4:
Changes
of anterior fontanelle in relation to atmospheric pressure
in the infant.
A:
Anterior fontanelle convex.
B: Anterior fontanelle
flat.
C: Anterior fontanelle
concave.
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The shape of
the anterior fontanelle (Figure 4 ), whilst still
patent (un-ossified), can be very revealing with regard to the
ICP. Normally the ICP is increased (from atmospheric pressure
as baseline) when the infant is in the horizontal position and
the fontanelle shows as convex, whereas in the vertical position
the ICP is normally subatmospheric and the fontanelle will
be concave. Thus, when the ICP is raised and the infant is in
the vertical position the fontanelle will be convex, i.e. a bump.
There are a few
exceptional circumstances when this principle does not apply and
in such cases the fontanelle remains flat. This maneuver can be
used to determine whether the ICP is in the normal range when used
as a part of the usual diagnostic procedures.
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When assessing the
appropriateness of treatment, aggravating factors, and prognosis,
the following factors must be considered:
1. ICP
increases instantly with crying, laughing, abnormal respiratory
patterns, abdominal straining, agitation, increase intrathoracic
pressure, raised central venous pressure and pain.
2. The pressure of encircling bands and constrictions to the
neck can produce ICP rise, the bands of nasal cannulae, phototherapy
patches, tight collars, etc.
Because
ICP rise alters the ratios of the monoamine axis (5HT, noradrenaline
and dopamine) in the brain stem activational systems, general
symptoms are many and vary greatly in both type and severity:
The
most obvious are:
1. Sensorimotor
and mental deprecation (i.e. listlessness, sleeplessness
or lack of normal responsiveness, difficulty suckling, gripey
and agitated).
2. Apneic
(cessation of breathing) attacks and convulsions.
3. Neurological
deterioration indicative of severe brain stem compression
(such as inability to perform ocular tracking or lack of
standard reflexes).
Even
lesser degrees of ICP derangement can, over time, fundamentally
disrupt and cause delay to the sequences involved in the laying
down of the vital CNS developmental programs. This maturing and
myelinatiing process is the basis for maximal motor and cognitive
development in all infants. Indications of severe ICP compression
must be assessed by a pediatric neurologist before initiation of
any treatment.
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1. Compression
of the superior sagittal sinus by neonatal calvarial moulding.
Radiology. 1974;(115): 6359
2. Changes in the superior sagittal sinus blood velocities
due to postural alterations and pressure of the head of the newborn
infant. Pediatrics, 1985; (75) :103847
3. Intracranial pressure and obstructive sleep apnea. Chest,
1989 (95)2: 27983
4. Degeneration of neurons in the thalamic reticular nucleus
following transient ischemia due to raised intracranial
pressure: Excitogenic degeneration mediated via non NMDA receptors.
Brain Research 1989; (501): 12943
5. Cerebrospinal fluid pulse waveform as an indicator of
cerebral autoregulation. J. Neurosurgery 1982 (56):6668
6. Intracranial compliance is timedependant. J. Neurosurgery
1987 20(3) :38995
7. A fast method of estimating the elasticity of the intracranial
system. J. Neurosurgery 1977; (47): 1926
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Paul
Manley specialises in back pain, low back ache, neck
pain, headaches, shoulder pain, knee pain and wrist
pain and repetitive strain injuries.
Call 07925 616 753 for an appointment at his Holborn, London WC1 practice
or for house calls in the home counties area.
Email
Paul Manley for advice - click
here
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