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You are here: BAILII >> Databases >> Scottish Court of Session Decisions >> Mitchell v. Allianz Cornhill [2008] ScotCS CSOH_132 (09 September 2008) URL: http://www.bailii.org/scot/cases/ScotCS/2008/CSOH_132.html Cite as: [2008] ScotCS CSOH_132, [2008] CSOH 132 |
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OUTER HOUSE, COURT OF SESSION [2008] CSOH 132 |
|
A4842/01 |
OPINION OF LORD UIST in the cause GEOFFREY MITCHELL, Advocate as Curator
ad Litem to Marc Bell Pursuer against ALLIANZ CORNHILL Defenders ннннннннннннннннн________________ |
Pursuer:
Defenders:
Introduction
[1] Marc
Bell (Marc) was born in
Background
The
circumstances of the accident
[4] The
car being driven by Mr Napier was a Ford Fiesta which had turned left from
Traumatic
brain injury - focal injury and diffuse axonal
injury
Whether Marc
was unconscious
[8] Gordon
MacDonald was driving along
[9] Mr
Napier gave evidence on commission on
[10] James
McNamee was an ambulance man who was sitting in nearby
Marc's
physical injuries
[13] I have
already referred to these above. X-rays
of his cervical spine, abdomen, chest, pelvis and skull were normal. An x-ray of his left femur showed a fracture
of the mid shaft of the femur. CT scans
of his brain, cervical spine and abdomen showed no abnormality. The wounds to his thigh, scalp and left shoulder
were debrided in theatre that evening and his fractured left femur was placed
in a Thomas' splint. He remained on
ventilation overnight in the Intensive Care Unit and was subsequently
transferred to the ward. He returned to
theatre on
[14] Marc
was again examined by Mr Bennet on
Whether Marc
suffered a traumatic brain injury
[15] There
is no doubt that since the accident Marc has exhibited seriously behavioural
problems. He was unable to keep up with
the work in primary school and his behaviour became more and more disruptive. His later behaviour is summarised thus by Dr
McCabe at para 14.1 of his report of
"At secondary school his
conduct proved so unmanageable that he was excluded from
Relying principally on Marc's behaviour since the
accident, Dr McCabe, Dr Dorris and Dr O'Regan all came to the conclusion that
Marc had sustained a brain injury in the accident.
[16] At para
14.4 of his report Dr McCabe stated:
"Marc's difficulties over
the years following the accident have included the development of behavioural,
cognitive, psychosocial and indeed psychiatric complications. This range of difficulties post-injury are (sic) often experienced following a
significant closed head injury where there is an absence of any localising
neurological signs that are more in keeping with a localised injury such as a
penetrating skull fracture or with an accumulated blood clot. Widespread diffuse damage following a closed
head injury can often particularly affect connections into and out of the
frontal lobes with resultant impairment involving a loss of the individual's
capacity to make sense of social situations, anticipate the consequences of
their actions and respond appropriately."
[17] The
diagnosis given by him at para 14.13 was as follows:
"In conclusion, it is my
opinion that Marc sustained a significant brain injury through the road traffic
accident when he was aged 7. This
resulted in the development of a range of consequent mental health difficulties
including the ICD-10 disorders F07 Unspecified organic personality and behavioural
disorder due to brain damage (still active) and for a period of some years also
PTSD (Post Traumatic Stress Disorder) F 43.1. Marc has also developed in his adolescence
symptomatic difficulties in keeping with Conduct Disorder but I would argue that
this should not be diagnosed as its onset has been secondary to the brain
damage."
[18] Dr
O'Regan in her report dated
"In view of the fact that
his father stated that Marc had altered levels of consciousness, he had a scalp
wound, lost three teeth (not correct) and the casualty officer noted that he
had blood in his nose, these suggest that in addition to his other injuries
Marc had a head injury. His head injury
would have to be classified as mild as his period of altered conscious level
was less than 15 minutes. The paramedics
scored his Glasgow Coma Scale at 15 at the scene of the accident. Marc
exhibited signs of a post traumatic stress disorder for the first three years
after his accident. These symptoms have
now subsided. Whilst Marc has made a
good physical recovery from his accident his behaviour, concentration, lack of
focus and poor academic performance remain major problems. He is impulsive, oppositional and defiant: he
obeys no rules and has difficulty adhering to any limits. His challenging behaviour has resulted in many
encounters with the criminal justice system and he has been involved in
risk-taking behaviour, alcohol and drug taking. He is receiving major support from the social
work service.
Marc's behaviour is
reminiscent of behaviour seen after head injuries. For children a head injury can lead to
persistent cognitive and neurobehavioural deficits, intellectual, academic and
personality adjustment problems and family stress. These effects are frequently seen after a
severe head injury. However, even mild head injury can lead to persistent
cognitive and behavioural deficits. Whilst
most children (85%) have no sequelae secondary to mild head injuries a
significant minority have problems described above. Outcome from head injuries
is also influenced by where a child lives: a child who lives in a deprived area
has a poorer outcome. In addition,
parental socio-economic status also has an important effect on outcome, as does
the family's ability to cope with the child's injuries. It must also be remembered that Marc was born
prematurely. Prematurity can be
associated with specific educational difficulties and difficulties with
attention and concentration, and this may have increased his vulnerability to
the effects of a head injury. There are
some suggestions that Marc had some behavioural problems prior to his accident
(his school report for the academic year 1997/1998 and in the correspondence
from the clinical psychologists).
Marc has considerable
behavioural and emotional difficulties that have had devastating effects on his
educational career and have also brought him into contact with the criminal
justice system. It is my opinion that as
a result of the road traffic accident he suffered a mild head injury that has
contributed to his present problems. In
addition, he had a prolonged post traumatic stress disorder. Other factors that probably contribute to his
present problems are his prematurity and his premorbid personality. However, post traumatic stress disorders,
behavioural and cognitive problems are the area of expertise of a paediatric
neuropsychologist and it would be appropriate to seek their opinion on the
above matter."
[19] Dr
Dorris was the paediatric neuropsychologist who was consulted. He carried out
neuropsychological testing of Marc and prepared reports dated
"6.3 Marc has a pattern of
cognitive impairment and behaviour consistent with having sustained a degree of
brain injury. He shows particular
deficits in perceptual organisation and auditory-verbal attention. Marc also shows impulsivity and difficulty
maintaining himself socially within group situations. I did not find evidence
of any pre-morbid states such as high-activity/impulsivity, and therefore on
the balance of probability would consider that these behavioural signs are also
sequelae to head injury.
6.4 Marc did not experience
any loss of consciousness and his CT scan did not reveal any significant
pathology. However, these findings
certainly do not rule out the possibility that Marc sustained tissue damage
leading to the difficulties described above."
In his oral evidence he stated that, having considered
the circumstances, he thought it highly likely that Marc did suffer loss of
consciousness, although that was not recorded in the medical notes. He did not think he had seen the ambulance
report, but even without seeing it he would have altered his opinion that Marc
had not suffered any loss of consciousness.
[20] In his
second report Dr Dorris expressed his neuropsychological opinion as follows:
"Marc continues to present
with cognitive difficulties consistent with those frequently observed in
frontal brain injury. These difficulties
include poor planning and self-awareness, poor frustration tolerance and
anti-social behaviour. Marc has very
poor attention and behaviour organisation abilities. He is impulsive and has
difficulty with maintaining a steady emotional state. He is quickly aroused and
can become frustrated and aggressive with minimal provocation. He is not hyperactive and his attention skills
are not notably enhanced when he is interested in a particular activity or
stimulus. He does not therefore display
a developmentally recognisable pattern of Attention Deficit Hyperactivity
Disorder (ADHD). I do not see any
compelling evidence within his medical history that he suffered from ADHD
before his accident. Marc was born
premature (sic) but was noted to have
made the normal developmental progress during his early years. Marc's cognitive
profile is also different from that observed in children with typical ADHD. The
highly significant difference between his Verbal and Performance IQ scores (32
points), and the significant deterioration in the latter score from 2003, are
strong evidence of brain injury. His
verbal memory weakness in the context of average range verbal IQ is a further
indicator of traumatic brain injury. However,
Marc is displaying behavioural and cognitive deficits that can appear similar
to those observed in ADHD. These
deficits are typical sequelae of early brain injury. The differences in the underlying cause of
these attention and behaviour problems, however, require different management
and treatment approaches. Therefore,
Marc Bell has significant intellectual and emotional deficits attributable to
his injuries. These deficits shall
significantly reduce his quality of life in occupational, social and emotional
domains."
[21] The
opinion in his third report included the following:
"It is my considered opinion
that Marc Bell had a degree of developmental vulnerability by virtue of his
prematurity, but that his development and educational progress were not grossly
abnormal before his accident; that his parents each showed difficulty in
adjusting to and coping with Marc's accident, creating further challenge in
providing a secure and emotionally available context supporting his
psychological recovery from post-traumatic stress disorder; and that Marc has
experienced a significant deterioration in his mental health, cognitive
function and emotional development since his accident. The relative contributions of psychological trauma,
family functioning, pre-existing vulnerability and organic effects due to head
injury are difficult to demonstrate. In
my experience, children with pre-existing developmental vulnerability often
experience a more significant effect from mild head injury than those without a
notable developmental history and whose families were not experiencing any
significant psychosocial strain at the time of the accident".
[22] Mr
Johnson examined Marc on
"The presenting difficulties
do not suggest a pattern of impairment caused by traumatic brain injury. Similarly, the child's present test
performances do not indicate a pattern of impairment that is consistent with
traumatic brain injury. I note
particularly that there are no consistent signs of frontal lobe impairment.
Marc Bell's better performances were in auditory-verbal attention, an area of
functioning in which impairment would be expected following traumatic brain
injury."
[23] Professor
Bone examined Marc on
"Whether his behavioural
problems can be regarded as the consequence of a form of post traumatic stress
disorder or indeed due to a degree of brain injury is difficult to apportion. Also Marc's behavioural disturbances could be
constitutional and wholly unrelated to this accident. On the other hand his father is quite adamant
that Marc's behaviour has deteriorated as a consequence of the accident and the
accident alone, emphasising the fact that there had been no behavioural
disturbance prior to trauma and that his twin brother brought up in the same
home environment has never displayed anything other than correct and
appropriate behaviour to the point that he is even considering a career within
the police force.
....
Medical records do support
that an injury to the head was sustained (scalp laceration) but given his
admission Glasgow Coma Score and clinical observations thereafter the head
injury component of his overall injuries has to be regarded as mild and the
likelihood of significant frontal lobe damage to my mind remote."
[24] Dr
Carson produced two reports on Marc. The
first (7/29 of process) is dated
"... there is very clear
evidence indeed that no significant acquired brain injury occurred. It is clear that from the time of the
ambulance men's arrival he was fully conscious and his Glasgow Coma Scale
remained 15/15 with good levels of oxygen saturation and well maintained blood
pressure and pulse throughout the rest of his admission. Structural imaging of his brain was normal. One can, in my opinion, be quite secure and
categorical in stating that no significant acquired brain injury occurred
during this accident. It is not always
appreciated by lay people (and indeed by many mental health professionals) that
acquired brain injuries are at their most severe at the time of the injury and
in the immediate post injury period. The
only exceptions to this are where major complications have occurred, for
instance, a significant intracranial bleed. This is definitely not the case here. It is possible that a very brief concussive
injury occurred prior to the arrival of the ambulance men. Indeed, given the obvious forces involved in
this collision, this would not be surprising. This would be classified as minimally
traumatic brain injury. The long term
outcome of minimally traumatic brain injuries has been a controversial affair.
... The World Health Organisation in recognition of this problem helpfully
conducted a very rigorous systematic review. It is accepted scientifically that this
represents level 1 evidence and one should not be assessing the findings from
individual studies where systematic review evidence exists unless these
individual studies offer new data which directly challenge the methodology of
the systematic review. The McKinlay
study quoted by Dr Dorris does not meet such criteria. The World Health organisation are very robust
in their conclusion that there is no evidence to suggest that minimally
traumatic brain injury links to any significant behaviour or cognitive problems
in children. I think we can therefore be
secure in saying that whatever the cause of Marc's difficulties it was not the
effects of acquired brain injury."
He agreed with Mr Johnson's comments on the findings
of neuropsychological examination. He
did not accept that the pattern of results was associated with acquired brain
injury and thought that it never could be as no significant acquired brain
injury occurred. In this respect he
fully concurred with Professor Bone's conclusions.
[25] Dr
Carson's second report (7/40 of process) was based on an examination of Marc on
"As noted in my original
report the core diagnostic factors behind an acquired brain injury are
peri-injury observations, in particular Glasgow Coma Scale, post traumatic
amnesia and total duration of loss of consciousness. It is on these factors that one judges the
severity of an acquired brain injury. Where
these factors are clearly available, as they are in this case, one defers to
them. It is only if such information is unavailable that one might consider
other factors such as whether the injury had the potential to cause an acquired
brain injury or whether symptoms displayed in the future (sic) could be compatible with an acquired brain injury.
Thus, while it is
undoubtedly the case that an accident of the type that occurred could cause an
acquired brain injury we have clear peri-accident recording that there was no
evidence of reduction in consciousness. Whilst it is possible that one might conceive
that concussion occurred, i e, a mild or minimally traumatic brain injury (the
latter is the correct current phraseology), there is clearly persuasive
evidence that nothing beyond this occurred. As described in my earlier report the World
Health Organisation have helpfully reported on the consequences of acquired
brain injury of minimally traumatic type and they are very clear that they do
not cause long-term symptomatology. In particular, the quotation by Dr Regan
that 15% of children have adverse outcomes is at odds with the current
scientific literature and I think if she wishes to uphold this position she
must explain why the World Health Organisation is wrong. The papers she has quoted do not in any way
challenge the World Health Organisation's conclusions; indeed, they are not
terribly helpful at all. Furthermore, in
my opinion symptoms displayed after the injury are not typical of the
neuro-psychiatric features of acquired brain injury, although they may look
like them to the inexperienced observer. In particular, there is no convincing evidence
of cognitive impairment. Although Marc
complains of poor concentration I did not think he had the characteristic short
attention of acquired brain injury. In
other words, I felt his attention fluctuated dependent on his desire to attend
to stimuli, whereas with brain injury this tends to be much more consistent. I thus feel I can be very robust in concluding
that the injury was a minimally traumatic brain injury at very worst and there
were no adverse neuro-psychiatric effects from it. Nor, according to the available world
literature, could there be.
......
Diagnostically the only
diagnosis I can see from childhood that can be securely made is in the field of
conduct disorder - oppositional defiant disorder. These are essentially descriptions of bad
behaviour in children.
.....
Clearly the behaviours (sic) Marc displayed over a time
period were very distressing to all
concerned and it is certainly the case that social work records made very
upsetting reading. However, I think we
have to be aware of the possibilities that one of the biggest factors in his
deteriorating behaviour has simply been age. The range of destructive and difficult
behaviour that a 5 year old can display are (sic)
somewhat different to those that an 8-14 year old can display. In general, more dramatic behaviour would be
more apparent as the child grows older. It
does therefore seem to me that a conduct disorder which has just worsened
through the effects of age in terms of the behaviours (sic) demonstrated, coupled perhaps with poor coping skills of the
family, is the most likely explanation for Marc's problems. It would seem not unreasonable to me that a
child, and indeed family unit, with poor coping skills would not deal well with
an accident of the type that occurred, and it would therefore seem not
unreasonable to suggest that the accident may have contributed to a
deterioration in the 1-2 years after the accident. I wish to be very clear that this comment is
entirely speculative and it may be the accident had no effect at all (I was
unable to demonstrate any at my examination), but I think in general it is
perhaps not an unreasonable assumption to suggest that this might have been the
case."
"There is a great deal of
uniformity in the findings of the methodologically acceptable studies on the
prognosis of MTBI in children. Where
post-concussion symptoms are present, they are usually transient in nature and
by 2 weeks to 3 months symptoms are similar to groups of children who have
sustained other types of injuries (such as orthopaedic injuries). The evidence also suggests few short or long
term cognitive deficits. Most of the
evidence also suggests that children with MTBI do not have higher rates of
subsequent behavioural or school problems than children with other types of
injuries."
Discussion and
conclusion about traumatic brain injury
[27] The
submission for the pursuer was that the factual evidence about Marc's
post-accident behaviour and the opinion evidence of Dr McCabe, Dr Dorris and
Dr O'Regan should be accepted and a finding made that he suffered a brain injury
in the accident resulting in behavioural and cognitive problems. The submission for the defenders was that the
evidence did not establish that Marc sustained brain injury in the accident or
in any event that it did not establish that he sustained a brain injury which
caused neurological impairment capable of giving rise to (and in fact giving
rise to) whatever deficits of brain function the pursuer maintained it caused.
[28] In
"Expert witnesses, however
skilled or eminent, can give no more than evidence. They cannot usurp the functions of the jury or
the judge sitting as a jury ..... Their duty is to furnish the judge with the
necessary scientific criteria for testing the accuracy of their conclusions, so
as to enable the judge or jury to form their own independent judgment by the
application of these criteria to the facts proved in evidence. The scientific opinion evidence, if
intelligible, convincing and tested, becomes a factor (and often an important
factor) for consideration along with the whole other evidence in the case, but
the decision is for the judge or jury. In
particular, the bare ipse dixit of a
scientist, however eminent, upon the issue in controversy will normally carry
little weight, for it cannot be tested by cross-examination nor independently
appraised, and the parties have invoked the decision of an independent tribunal
and not an oracular pronouncement by an expert."
The above passage was described by Lord President
Rodger in Dingley v The Chief Constable, Strathclyde Police 1998
SC 548 at p 555 as "authoritative guidance on the approach which the court
should take to expert evidence". I
therefore seek to follow that guidance when assessing the expert evidence in
this case.
(a) the severity of the brain
injury (mild, moderate or severe, assessed by the duration of loss of
consciousness at the time of the accident);
(b) the epidemiological evidence
about the effects, if any, of brain injury of the severity suffered by the
subject;
(c) whether the injury suffered
was focal or diffuse; and, if there is any doubt about whether brain injury of
a particular severity can cause particular neurological deficits -
(d) whether neuropsychological
test results show deficits in those areas of brain functioning that accord with
the behaviour which is suggested to be a consequence of the brain injury.
The evidence of the pursuer's experts fails to satisfy
these criteria and fails to establish any brain injury with neurological consequences.
Whether Marc
suffered from PTSD
[33] It was
submitted for the defenders that it had not been established that Marc ever
fulfilled the diagnostic criteria for PTSD. The psychologist Lisa McKechnie, whose letters
6/12, 6/13 and 6/14 Dr Dorris had relied on as the basis for his view that Marc
had or might have had PTSD in the past, had not been called as a witness and
the contents of these productions were not agreed to be true. The diagnostic criteria for PTSD were set out
in 7/10 of process. In any event, even
if Marc did have PTSD, it had not been established for how long he had had it. The evidence had not established when he was
first seen by Lisa McKechnie or that he was seen by her for a prolonged period
or in any event after her letter of
"In particular, I cannot see
any evidence to support a diagnosis of post traumatic stress disorder from
Marc's own descriptions of symptomatology. If the father's descriptions are believed one
might argue that the presentation of nightmares and the reluctance to go past
the scene of the accident might suggest an atypical post traumatic stress
disorder (it would not meet the DSM IV criteria). I think this is a situation that would be very
dependent upon whose account one defers to.
I generally feel that with post traumatic stress disorder, which in
essence is dependent on persistent and upsetting re-experiencing of events, one
should defer to the patient's account. Certainly
Marc was very clear at my own review that such symptoms were not present. Nor
could I find any description of them in contemporaneously recorded medical
records. Furthermore, I could not
detect, within the psychology letters, any clear cut evidence in terms of
positive symptomatology that such a disorder was present. Dr McKechnie was making the not unreasonable
supposition that PTSD could have happened, his father was reporting compatible
symptoms, and, although Marc was denying them, he was displaying difficult
behaviours (sic) and therefore this
was a likely explanation (I do of course apologise to her and the court if this
is not the case). Thus, whilst I would
fully accept that an accident of the type that occurred could have the
potential to cause an emotional reaction, particularly in a vulnerable child, I
could not personally see any evidence of this being the case. I would, however, want to make clear that I
would certainly concede it as being a distinct possibility."
(i)
Solatium
I have summarised above at
paras 4, 13 and 14 Marc's physical injuries and their major consequences,
including operative procedures and significant cosmetic defects. He underwent
much distress and suffering.
The submission for the defenders was that in these
circumstances the appropriate award for solatium would be г15,000 (E (A Minor) v Greaves, Kemp and Kemp, para 115-016, JSB Guidelines, section 6(L)(c)). I think that the proposed figure
is far too low as it fails to reflect the totality of the injuries. This is not a case of only a fractured femur,
but of the other injuries mentioned and permanent disfigurement in different
parts of the body. Several operative
procedures were required. In my opinion
the appropriate figure for solatium is г25,000.
(ii)
Past services
As I have concluded the only injuries attributable to
the accident were the physical ones mentioned, it follows that the award for
services rendered by Marc's father must be restricted to the period of his
physical disability. I accept the
submission for the defenders that there was no requirement for services as a
result of his injuries after the date by which he should have been out of a
wheelchair and not using crutches had passed. Evidence about services was given by two care
reporters, Ailish McCarron (for the pursuer) and Tessa Gough (for the
defenders). On the basis of the latter's
evidence a figure of г4,861.85, subject to a 25% reduction for tax and national
insurance, was proposed by the defenders for the period up to 31 August 1999. Ailish McCarron calculated past care from the
date of the accident up to October 1999 at the gross figure of г7,665.37. It is impossible to be precise in this area
and I can take only a broad approach based on the evidence which I heard. Allowing for past services for a period of
about a year after the accident, I fix the gross figure at г6,500. A deduction
of 25% representing tax and national insurance brings out a net award for past
services of г4,875.
(iii)
Outlays and expenses
These amount to г370 (exclusive of interest).
(iv)
Total Award
The total figure on the basis of full liability is
г30,245. As liability has been agreed at
50% the principal sum of the award of damages (rounded off to the nearest
pound) is г15,123. The necessary
interlocutor will not be pronounced until the questions of interest and
expenses have been dealt with at a By Order Hearing.