Saturday, October 27, 2007

Medical matters dominate papers

Medical Matrix
 
Daily newspapers
Medical stories are a dominant theme across Saturday's papers. In particular, much attention is given to new plans to allow nurses to decide over resuscitating patients.
 
The front pages of the Daily Mail, the Times and the Daily Telegraph all go with the news that nurses will be able to decide whether to resuscitate patients.
The idea is anathema to the Daily Mail. It reports the views of one patients' group under the headline, "Nurses to have the power to end a life".
 
The Times is in favour, noting that nurses are closer to patients than doctors.
 
In the Telegraph, a Christian Medical Fellowship spokesman says it is unfair to place the responsibility on nurses.
 
Together in death
There are more medical matters in the Sun, one of many papers to relate the demise of Lionel and Rosemary Owen.
 
The elderly couple's daughter claims they both died from Clostridium Difficile at the Royal Devon and Exeter Hospital, only a few minutes apart.
 
Nina Griffith tells the Sun the hospital knew her mother had the superbug but allowed her to visit for treatment, and she gave it to her husband.
 
She tells the Daily Express her mother believed in the NHS but it failed her.
 
The hospital tells the Sun it is investigating the "complex" circumstances surrounding the deaths.
 
Brain injury fear
A Guardian exclusive reveals the Ministry of Defence is holding a major study into brain injuries in troops returning from Iraq and Afghanistan.
 
The report says the soldiers may have suffered the injuries after being exposed to high-powered bomb blasts.
 
Troops are at risk due to increased use of road-side bombs, the paper explains, and even the most advanced helmets cannot protect the brain from the shock waves.
 
Victims suffer symptoms such as acute memory loss and flashbacks, it says.
 
Galloping prices
The Financial Times is preoccupied with the price of oil. It says the price of crude has hit a new record, jumping above 92 dollars for the first time.
 
According to one futures trader quoted in the paper momentum in the oil market is like "riding on a galloping horse".
 
"Scotland-10, England-nil", reads the inflammatory headline on the front of the Independent.
 
The paper looks at how life has changed for Scots since devolution, and concludes that they have never had it so good.

Friday, October 26, 2007

Doctors 'misused figures to back abortions'

By Gordon Rayner

Doctors may have misled the Government in order to keep the 24-week abortion limit, it has been claimed.
  • Your View: Should the 24-week abortion limit be lowered?




    The Tory MP Nadine Dorries said yesterday that the Royal College of Obstetricians and Gynaecologists (RCOG) had submitted evidence to ministers showing the survival rate at 23 weeks was just 10-15 per cent, when some hospitals recorded survival rates of 40 per cent at 23 weeks and 66 per cent at 24 weeks.
  • Mrs Dorries also criticised the British Medical Association (BMA) for "working it" so that only pro-abortion motions were discussed at its annual conference.
    Her allegations came before Dawn Primarolo, the minister for public health, appeared before a parliamentary science and technology committee inquiry into abortion.
    Miss Primarolo told the committee that the Government did not believe there was enough evidence to reduce the upper abortion limit, citing the low survival rate.
    But Mrs Dorries challenged her, saying there were units where the rates were much higher. She asked: "Do you still feel 24 weeks is the right limit?"
    Miss Primarolo said: "The [scientific] consensus is still clear with regard to survival rates under 24 weeks. There are improvements in care but the advice is still the same in terms of survival rates."
    The minister said the Department of Health had been given evidence by a range of organisations, including the RCOG and the BMA.
    On her internet blog, Mrs Dorries claimed the RCOG had quoted an average UK figure, omitting figures showing that at "good neonatal units" a high proportion of 23-week babies would live.
    An RCOG spokesman strongly denied misleading the committee. He said: "What we have provided is scientific evidence, which the committee will look at. [Mrs Dorries], on the other hand, has just provided her own opinion."
    Mrs Dorries argued that Hope Hospital in Salford and University College Hospital in London had survival rates of 42 per cent at 22 weeks and 66 per cent at 24 weeks.
    However, a consultant at the UCH neonatal unit later told The Daily Telegraph that the figures did not apply to all births at the hospital — only those admitted to intensive care. The number of extremely early babies was very small, making percentages very unreliable.
    The inquiry paves the way for the Human Tissues and Embryos Act, expected next month, at which both sides of the abortion debate will attempt to amend the 1967 Abortion Act.

    Flu vaccines are not helping elderly patients

    Picture of a patient getting a flu jab
    The Flu jab
     
    Flu vaccines are not helping elderly patients and, despite vaccination programmes, the number of hospital admissions due to flu is not being reduced, reported The Times and other newspapers. The study by the Health Protection Agency "will fuel doubts over the effectiveness of the vaccine in older people" the newspaper said, and although the researchers are not recommending an end to the vaccination programme, they suggest other measures should be considered which might reduce hospital admissions such as treating chest infections, improving housing and promoting giving up smoking.
     
    This story is based on a study that suggests the influenza vaccination programme in the elderly should be an area for further research. However, this study looked only at people who were already ill, and at the current time there is insufficient evidence from this study alone to conclude that influenza vaccinations are unnecessary for a vulnerable group of the population during the winter period.
     
    Where did the story come from? The research was carried out by Dr Rachel Jordan of the Health Protection Research and Development Unit of the Health Protection Agency (based at the University of Birmingham) and other colleagues from the HPA and at Universities and hospitals in Birmingham, Nottingham Derby, and Aberdeen. The main sponsor of the study was the British Lung Foundation. It was published in the peer-reviewed medical journal Vaccine.
     
    What kind of scientific study was this? This was a case-control study of sick, elderly people, which aimed to compare those who were admitted to hospital with an acute respiratory illness (cases) with those that presented to the GP with an acute respiratory illness but did not require hospital admission (controls). The participants were part of a larger study that was examining the risk factors for winter hospital admissions due to respiratory illness.
     
    The researchers used a group of elderly people aged between 65 and 89 years old who went to the GP with an acute respiratory illness (or acute worsening of a pre-existing condition) between October 2003 and March 2004. The researchers selected six controls for each hospitalised case and these were matched as closely as possible in terms of sex, age and date of GP consultation. They examined GP records to obtain information about medical diagnoses, pneumococcal vaccinations, and whether the patient had received the recommended influenza vaccination for that winter in the three weeks prior to the start of the study.

    These results do not "negate the need for influenza vaccine". Rachel Jordan, lead author
    All patients included in the study were invited for interview with a nurse to look at social, medical and lifestyle factors. The study excluded patients with dementia and those who were unable to take part in the interview. Of the potential 3,970 people included in the original group, 157 cases and 639 controls were interviewed and included in the study analysis.
     
    What were the results of the study? The researchers found there to be no difference in the rates of vaccination between those who were hospitalised for their illnesses and those who weren't; 74.5% of the hospitalised patients had been vaccinated compared with a vaccination rate of 74.2% in patients who weren't hospitalised. The difference remained non-significant even when adjusting for potential contributing factors such as chronic obstructive pulmonary disease (COPD), other medical illnesses, smoking and age.
     
    What interpretations did the researchers draw from these results? The researchers conclude that in ill people, influenza vaccine did not reduce the number of hospital admissions due to respiratory illness during a typical winter.
     
    What does the NHS Knowledge Service make of this study?
    Although this study can provide some data on the effect of flu vaccination on the numbers of hospital admissions due to a respiratory illness over a winter period, several points must be kept in mind when interpreting the study. Newspaper headlines such as "flu jabs fail to cut illnesses" may lead you to believe that this study was looking at whether the vaccination could prevent infection with the influenza virus, which is not the case.
    • The study only enrolled people who had presented to their GPs with "an acute episode of respiratory infection or acute exacerbation of pre-existing disease", i.e. people who were already sick. As such, it was designed to answer a very specific question about whether the influenza vaccination reduces "respiratory admissions" (which could include flu or not) to hospitals in those who are ill. The study could not and did not intend to determine whether the influenza vaccination can prevent infection.
     
    • Grouping people under a broad definition of presentation – "acute respiratory illness or acute exacerbation of a pre-existing respiratory disease" – means that those with a wide variety of both viral and bacterial infections such as upper respiratory tract infections (coughs, colds, sore throats), influenza, acute bronchitis, infective exacerbations of COPD, and pneumonia would have been included. Through this method, it isn't possible to separate those patients who were admitted specifically for influenza. As the researchers conclude, their study shows that "influenza is not the sole driver of winter respiratory admissions".
     
    • There are different types of influenza infection. Influenza is a virus, and different strains circulate during different seasons. Vaccinations are prepared before the flu season starts and are designed to protect against the strains that are predicted to be predominant. It is not always possible to get this 100% correct and the vaccination is always more effective in seasons where it matches well with the strains of virus that are causing infection. The researchers themselves note that "in the 2003–2004 season, the circulating virus showed antigenic drift compared with the vaccine strain". This means that the vaccine would not offer full protection against flu that season. This study cannot be generalised to predict what happens in seasons where the vaccine is fully matched to the viruses that are causing infection in the population.
     
    • Controls were matched for age, sex and date of consultation but there are many other factors that could impact upon whether hospitalisation could be required for a respiratory illness, such as presence of asthma, COPD, or having a series of repeated infections.
    This study suggests that influenza is not the "sole driver" of admissions to hospital for respiratory infections and that relying on a vaccine to prevent flu in order to reduce the winter bed pressures in hospitals is not sufficient.
     
    This study was not set up to determine whether the vaccination works to prevent influenza infection in the elderly. The researchers themselves say that their results do not "negate the need for influenza vaccine, as other studies show small but demonstrable benefits in reducing both infection (an outcome this study did not look at) and subsequent morbidity and mortality in the elderly, particularly in a season where the vaccine is well-matched and there is high viral circulation". The efficacy of the vaccination in preventing infection is a separate issue and we support the call for further well-designed research to answer this question once and for all. The elderly should continue to be vaccinated against flu while this research is being conducted.
     
    Sir Muir Gray adds... Hospital admission is determined by many factors, of which the incidence and severity of disease are but two. This does not mean that immunisation should be stopped; if you are offered an immunisation this study should not influence your decision, immunisation does much more good than harm and is still to be recommended.

    Links to the headlines

    Flu jab 'failing to save the elderly'. The Times, October 24 2007
    Flu jabs 'fail to cut illnesses'. The Daily Telegraph, October 24 2007
    Flu jab is 'no use' for the old. The Sun, October 24 2007

    Links to the science

    Further reading Rivetti D, Jefferson T, Thomas R, et al. Vaccines for preventing influenza in the elderly. Cochrane Database Syst Rev 2006, Issue 3
    Analysis by Bazian source image
    Edited by NHS Choices
    Latest Headlines

    Friday, October 12, 2007




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