Releases Saturday 7 September 2002
No 7363 Volume 325

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(1) BENEFIT OF PUBLIC DEFIBRILLATORS IS
MARGINAL

(2) RADICAL SOLUTIONS NEEDED TO TACKLE
NHS NURSING SHORTAGE

(3) ARE PEOPLE WITH MENTAL ILLNESS MORE
VIOLENT THAN OTHER PEOPLE?

(4) BENEFITS OF DISCUSSING TEENAGE HEALTH
CONCERNS ARE SMALL BUT ENCOURAGING



(1) BENEFIT OF PUBLIC DEFIBRILLATORS IS
MARGINAL

(Potential impact of public access defibrillators on
survival after out of hospital cardiopulmonary arrest:
retrospective cohort study )
http://bmj.com/cgi/content/full/325/7363/515

(Editorial: Outcome after cardiac arrest outside hospital)
http://bmj.com/cgi/content/full/325/7363/503

Making defibrillators widely available in public places
such as airports and shopping centres is not justified by
the marginal improvement in survival, finds a study in this
week's BMJ.

Researchers in Scotland used records of all out of
hospital cardiac arrests due to heart disease from
1991-1998 to estimate the potential impact of public
access defibrillators on overall survival after out of
hospital cardiac arrest.

Of 15,189 arrests, 79% occurred in sites not suitable for
the location of public access defibrillators, such as the
person's home or a friend's home. Only 453 (3%)
occurred in possibly suitable sites, such as buses and
multi-storey car parks, and 18% occurred in suitable
sites, such as shops, places of business, and sports
centres.

The authors predict that locating public access
defibrillators only in suitable sites would increase the
survival rate from 5.0% to 6.3%. If defibrillators were
located in suitable and possibly suitable sites, the survival
rate would increase only slightly further to 6.5%.

This predicted increase in survival is less than the increase
achievable through expansion of early defibrillation
provision to non-ambulance first responders, such as
other emergency services or community schemes, or of
bystander cardiopulmonary resuscitation, explain the
authors. Even so, the Department of Health is committed
to providing 700 public access defibrillators in 72 sites
across England and Wales.

Additional resources for wide scale coverage of public
access defibrillators are probably not justified by the
marginal improvement in survival, they conclude.

Contacts:

Jill Pell, Honorary Clinical Senior Lecturer, Department
of Medical Cardiology, University of Glasgow, Glasgow,
Scotland

or

(From Thurs 5 September): Stuart Cobbe, Professor,
Department of Medical Cardiology, University of
Glasgow, Glasgow, Scotland
Email: stuart.cobbe@clinmed.gla.ac.uk

(2) RADICAL SOLUTIONS NEEDED TO TACKLE
NHS NURSING SHORTAGE

(Mind the gap: the extent of the NHS nursing shortage)
http://bmj.com/cgi/content/full/325/7363/538

(Mind the gap: the policy response to the NHS nursing
shortage)
http://bmj.com/cgi/content/full/325/7363/541

Current government initiatives to tackle the problems of
recruiting and retaining nurses may not resolve the crisis
fast enough, and more radical solutions may need to be
considered, say researchers in this week's BMJ.

Problems in recruiting and retaining nurses are hampering
the "modernisation" of the NHS. The underlying causes
of these problems include pay, the changing nature of
jobs, how valued the staff feel, and other employment
opportunities, write Belinda Finlayson and colleagues
from the King's Fund in London.

The crisis is most acute in inner cities and teaching trusts,
particularly in London, where some turnover rates range
from 11% to 38%. High turnover results in higher costs
and lower morale and may affect patient care.

Although the government is tackling the crisis, problems
persist, they say. Overall progress has been slow; staff
are unaware of the new opportunities available to them;
some tarare modest; and little effort has been made to
evaluate the impact of these initiatives.

Furthermore, workforce issues are still nowhere near the
top of the agenda for managers or trust boards, who
have other managerial "must do's," such as reducing
waiting lists and times, managing emergency admissions,
and breaking even financially, they add.

If fully implemented on time, the national initiatives will
help, but it is questionable whether they will turn the tide,
say the authors. In the meantime, more radical
suggestions for a complex redesign of the healthcare
workforce are being proposed. The merits of these
proposals should be openly debated and their evidence
base evaluated, they conclude.

Contact:

Andrew Bell, Press Office, Health Care Policy
Programme, King's Fund, London, UK
Email: a.bell@kingsfund.org.uk

(3) ARE PEOPLE WITH MENTAL ILLNESS MORE
VIOLENT THAN OTHER PEOPLE?

(Editorial: Violence in society±contribution of mental
illness)
http://bmj.com/cgi/content/full/325/7363/507

The contribution of mental illness to societal violence is
modest, despite increasing public concern about the
potential for violence among mentally ill patients who
have been treated and reside in the community, write
researchers in this week's BMJ.

Recent studies suggest that patients with psychotic illness
alone have a modest increase in risk for violent
behaviour, but the greatest risk is associated with
personality disorder, substance abuse, say the authors.
Variables such as male sex, young age, and lower
socioeconomic status contribute a much higher
proportion to societal violence than the modest amount
attributable to mental illness.

If a person with mental illness is violent, however, it does
not necessarily mean that this is due to the illness; it may
be due to other coexisting risk variables, add the authors.
Overall, it seems that less than 10% of serious violence,
including homicide, is attributable to psychosis.

The evidence also contradicts the theory that the closing
of large psychiatric institutions over the past 30 years
have meant that a greater proportion of societal violence
is attributable to those with mental disorder.

Fear and stigma of mentally ill people have been
exaggerated by high profile and occasionally
sensationalist reporting of rare, albeit tragic, violent acts.
Yet the scientific literature refutes the stereotyping of all
patients with severe mental illness as dangerous, say the
authors. It is inappropriate that mental health policy and
legislation should be driven by preoccupation with risk of
violence, rather than the delivery of effective treatments in
the community, they conclude.

Contact:

Elizabeth Walsh, Clinical Lecturer, Section of Forensic
Mental Health, Guy's King's College and St Thomas's
School of Medicine, Institute of Psychiatry, London, UK
Email: sppmemw@iop.kcl.ac.uk

(4) BENEFITS OF DISCUSSING TEENAGE HEALTH
CONCERNS ARE SMALL BUT ENCOURAGING

(Health promotion for adolescents in primary care:
randomised controlled trial)
http://bmj.com/cgi/content/full/325/7363/524

Teenagers welcome the opportunity to discuss health
concerns with a health professional, but the effect on their
actual lifestyles is modest, finds a study in this week's
BMJ.

Researchers identified 1,516 teenagers (aged 14-15
years) from eight general practices in Hertfordshire,
England. Teenagers in the intervention group received an
appointment for a 20 minute consultation with the
practice nurse to discuss health concerns and develop
plans for healthier lifestyles. Teenagers in the control
group received usual care. Both groups were asked to
complete questionnaires at three months and 12 months.

Some 970 teenagers completed questionnaires; 23%
smoked, 35% had been drunk in the previous three
months, 64% considered they ate unhealthily, 39% took
little exercise, and 36% had possible depression.

Three quarters (225) indicated at least one behaviour
they would like to work on changing; the most common
were diet (50%), exercise (36%), dealing with stress
(23%), and smoking (13%).

At three months, marginally more teenagers in the
intervention group than in the control group reported
positive change in at least one of four areas of health
related behaviour (diet, exercise, smoking, and drinking
alcohol), but this did not persist at 12 months.

All teenagers but one were satisfied with their
consultations. Most said they had felt able to talk about
all the issues they wanted to, and 97% would
recommend the service to a friend.

The results of the trial are somewhat disappointing in that
benefits (even where significant) were small, say the
authors. However, the results do provide an encouraging
start, providing an opportunity to identify and tackle
mental and physical health problems and encourage
healthy lifestyles.

The intervention was well received and relatively cheap,
suggesting a way for practices to create an atmosphere
that welcomes teenagers, they conclude.

Contact:

Joy Townsend, Professorial Fellow, Health Promotion
Research Unit, London School of Hygiene and Tropical
Medicine, London, UK
Email: joy.townsend@lshtm.ac.uk


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