UK-trained doctors from ethnic minority groups underperform academically

A third of all UK medical students and junior doctors come from ethnic groups. In 2009, 36% of newly qualified doctors and 52% of all other NHS doctors were from these groups. A new study conducted by UCL researchers found that UK-trained medical students and doctors from ethnic minority groups underpeformed academically compared with their white counterparts. They systematically analysed 22 reports involving about 24,000 UK- trained medical students and doctors from different ethnic groups and found that the odds of failure in non-white candidates was 2.5 times higher than the white candidates. They said that ethnic differences in academic performance are widespread across different medical schools, different types of exams and in both undergraduate and postgraduate assessments. It was persistent for 30 years and "cannot be dismissed as atypical or local problems". They called for further research into the causes to ensure that all future doctors are assessed fairly. In an accompanying editorial, the author said that soultions will be found through critically appraising assessment methods, curricula and interactions with students.

What do you think may have caused the ethnic differences in attainment and how can they be resolved?

Source: Ethnicity and academic performance in UK trained doctors and medical students: systematic review and meta-analysis. BMJ 2011; 342:d901 ( free access) Editorial - Ethnicity and academic performance in the UK. BMJ 2011; 342:d709 ( free access)

Should I take statins as a preventive measure?

A new Cochrane systematic review conducted by London School of Hygiene and Tropical Medicine and the University of Bristol questioned the benefits of prescribing statins to people without heart disease.

Researchers reviewed 14 trials involving more than 34,000 patients with low risk of heart attack and strokes. They found that overall statins reduced mortality, but the effect was very small - 1000 people have to be treated for 1 year to prevent 1 death. Previous studies have found that statins have been associated with a range of side effects including kidney failure and muscle weakness, therfore not worth the risk in people without history of cardiovascular disease.

They pointed out that the findings of the trials were biased due to several shortcomings: 1/3 of the trials outcomes were selectively reported, 8 trials did not report on the adverse effects, 2 large trials were stopped prematurely, only 1 trial has been funded publicly while 9 trials were sponsored by drug companies partially or fully. They concluded "widespread use of statins in people at low risk of cardiovascular events ..... is not supported by the existing evidence".

Oxford researchers noted that the Cochrane review did not include the recent meta-analysis conducted by the Oxford group which was more reliable than the Cochrane review.

In an accompanying editorial, the author said that the current evidence supports the NICE guidance that statins should be used for the primary prevention of CVD for people with more than 20% risk of developing the disease. Given the limitations of the study, he suggested an alternative approach to focus on population-wide prevention.

Source:

Taylor F, Ward K, Moore THM et al. Statins for the primary prevention of cardiovascular disease. Cochrane Database of Systematic Reviews 2011, Issue

Editorial :Considerable uncertainty remains in the evidence for primary prevention of cardiovascular disease. Cochrane Library 2011, (January 19, 2011).

http://www2.cochrane.org/reviews/en/ab004816.html

Behavioral therapy reduces postprostatectomy incontinence

According to a study published in JAMA, 65% of men experience urinary incontinence up to 5 years following radical prostatectomy.

American researchers conducted a randomized controlled trial involving 208 men aged 51 - 84 with incontinence persisting 1 to 17 years after radical prostatectomy, to evaluate the effectiveness of behavioral therapy for reducing post-prostatectomy incontinence and to determine whether biofeedback and electrical stimulation enhance its effectiveness. 24% of the men were black and 75 % white.

The researchers found that over the 8-week treatment period, those in the behavioral therapy group had an average reduction of incontinence episodes of 55 % (from 28 to 13 episodes per week), while the control group had an average reduction of only 24 % ( from 25 to 21 episodes per week). Those in the behavior-plus group experienced an average reduction of 51% (from 26 to 12 episodes per week), indicating that the addition of biofeedback and electrical stimulation did not improve the 8-week results compared with behavioral therapy alone.

Improvements were evident up to a year in the treatment groups, 50% reduction in the behavioral group and 59% in the behavior plus group. By the end of the treatment period, 15.7 % of men in the behavior therapy group, 17.1% in the behavior-plus group, and 5.9% in the control group achieved complete continence.

The researchers concluded that for men with incontinence following radical prostatectomy, behavioral therapy resulted in significant reduction in incontinence espisodes and that these findings have important implications for doctors and patients.

In an accompanying editorial, the author wrote that the optimal way to address postprostatectomy incontinence remains unanswered and that a better strategy would be primary prevention.

Source: Behavioral Therapy With or Without Biofeedback and Pelvic Floor Electrical Stimulation for Persistent Postprostatectomy Incontinence - A Randomized Controlled Trial. JAMA. 2011;305(2):151-159. (f/t via Athens)

General anesthesia is closer to coma than sleep

According to a review published in the NEJM, patients undergoing general anesthesia before surgery are not "going to sleep" as their doctors probably told them, they are placed in a “reversible coma".


Three US neuroscientists took 3 years to research studies in general anestheisa, sleep and coma to understand how anesthetic drugs induce and maintain the behavioral states of general anesthesia. They discussed the clinical and neurophysiological features of general anesthesia and their relationships to sleep and coma, focusing on the neural mechanisms of unconsciousness induced by selected anesthetic drugs.


They conclude that better understanding of the the different states of the process would lead to new approaches to general anesthesia and improved diagnosis and treatment for sleep problems and emergence from coma.



Source: "General Anesthesia, Sleep, and Coma". New England J of Medicine 2010; 363:2638-2650 ( f/t via Athens)

Good cholesterol may reduce Alzhemier's risk

A new study claims that high levels of high-density lipoprotein (HDL) or ‘good’ cholesterol could lower the risks of developing Alzheimer’s disease in older adults,


US researchers studied 1,130 randomly selected elderly people aged 65 and over and had no history of memory trouble or dementia. The participants were follwoed for an average of four years. Researchers found that those with the highest HDL counts, over 55 mg/dL, had about a 60% reduced risk of developing the disease compared to those whose levels were under 39 mg/dL. The study author said that the result suggested that higher level of good cholesterol decreases the risk of Alzheimer's disease, but the mechanism is unknown.


It was noted that a previous study published in Neurology in 2001 found that Japanese-American men with higher HDL cholesterol were more likely to have Alzheimer's-related plagues and tangles in their brains.


Alzheimer's Society (UK) said until now, studies have focused on the associations between 'good' cholesterol and vascular dementia....... More research is needed to fully understand the link between HDL cholesterol and the processes that lead to Alzheimer's Disease.


Source:'Association of Higher Levels of High-Density Lipoprotein Cholesterol in Elderly Individuals and Lower Risk of Late-Onset Alzheimer Disease'. Archives of Neurology. 2010;67(12):1491-1497. doi:10.1001/archneurol.2010.297

UK cancer survival rate lags behind other countries

According to a new study, published in The Lancet today, cancer patients in England, Wales and Northern Ireland have lower survival rates than those in Australia, Canada, Sweden and Norway.

This is the first study in a programme to investigate international survival disparities, with the aim of informing health policy to raise standards and reduce inequalities in survival.

The scientists analysed data on 2.4 million cancer patients in the UK (not including Scotland), Australia, Canada, Denmark, Norway and Sweden focusing on cancers of breast, bowel, lung and ovarian. They examined the survival rate at 1 and 5 years between 1995 and 2007 and found that in some cases survival rates in the UK are more than 10% lower than Europe, Australia and Canada particularly in the first year after diagnosis. In the 5-year survival rate, UK was the worst in bowel, lung and breast cancer. Denmark also lags behind, though generally its outcomes were not as bad as the UK's.

The authors said, "Differences in individual, health-system and clinical factors - such as public awareness of cancer, diagnostic delay, stage, comorbidity and access to optimum treatment - are all potential explanations for the overall differences in relative survival. The patterns are consistent with late diagnosis or differences in treatment, particularly in Denmark and the UK, and in patients aged 65 years and older".

Cancer Research UK urges the government to focus on early diagnosis and on improving equitable access to treatment. It also urges collecting reliable and good quality information nationally in order to understand the extent of the problem and identify the causes of the survival gap within the UK and other countries.

Source: Cancer survival in Australia, Canada, Denmark, Norway, Sweden, and the UK, 1995—2007 (the International Cancer Benchmarking Partnership): an analysis of population-based cancer registry data. The Lancet, Early Online Publication, 22 December 2010

Should healthy middle-aged people take daily aspirin ?

Studies have shown that aspirin, a commonly used painkiller, is linked to reductions in heart attacks and strokes, but it can irirtate the stomach and cause serious internal bleeding particularly in elderly people.

According to a new Oxford Univeristy study, published in The Lancet last week, taking a daily low dose of aspirin for reduced cancer deaths during and after the trials and the benefit increased with duration of treatment.

The researchers examined the data of 8 trials that looked at the effects of daily dose of aspirin on preventing heart attacks involving over 25,000 people. They found that aspirin reduced cancer deaths by 20% during the trial, but after 5 years, death rates were 34% lower for all cancer deaths. They also found the risk of all cancer deaths over a period of 20 years remained 20% lower for those who had taken aspirin, about 40% for bowel cancer, 30% for lung cancer, 10% for prostate cancer and 60% for oesophageal cancer. But there were not enough women participants to determine if daily aspirin could reduce breast, ovarian or endometrial cancer deaths.

The lead researcher said this study confirms the results of the previous study that found aspirin has preventive effect against cancer and has demonstrated a major new benefit of the drug. He believes that the findings have implications for guidelines on use of aspirin and the most benefit would be seen for those start taking aspirin between the age of 40 - 50 and continue for 25 years.

The previous study by the same authors, also published in The Lancet in October 2010, showed that a low dose of aspirin, 75mg per day taken for several years, reduced deaths due to colorectal cancer. However, opinions were divided on the result of the study.

Some said that the study did not give a balanced view of the effect of the treatment because it did not report the potential harms. The protective effects against cardiovascular disease were thought to be small for healthy adults. Some advised that aspirin should not be used to prevent heart attacks and strokes in "healthy" people as the risks outweigh potential benefits. Others said more research is needed before recommending taking aspirin to reduce cancer deaths.

Source: Rothwell PM, Fowkes FGR, Belch JFF, et al. Effect of daily aspirin on long-term risk of death due to cancer: analysis of individual patient data from randomised trials. The Lancet. 2010 Jan 7. [Epub ahead of print] Online publication 7 December 2010 ( f/t via Athens)

Previous studies :

Rothwell PM, Wilson M, Elwin C-E et al. Long-term effect of aspirin on colorectal cancer incidence and mortality: 20-year follow-up of five randomised trials. The Lancet 2010, Early Online Publication, October 22 (f/t via Athens)

Benamouzig R, Uz B. Aspirin to prevent colorectal cancer: time to act? The Lancet 20110, Early Online Publication, 22 October (f/t via Athens)

Have you washed your hands - another study on patient safety

Since the report by the Institute of Medicine in 2000 that found high rates of medical mistakes in the US, most US hospitals had made efforts to improve patient safety. A new study, published in the NEJM found that patient harm in hospitals has not decreased over time!

Harvard researchers reviewed 2341 admission records obtained from 10 randomly selected hospitals in North Carolina between 2002 and 2007, they found 588 incidents of patient harm, ie 25.1 harms per 100 admissions, resulting from medical procedures, medications, or other causes.
The study found that infections was one of the most common complications, 42.7% required longer hospital stay for treatment, eg infected surgical incision. The types of patient harm varied widely and included falls, injury during surgery, low blood pressure and low blood sugar. Most of the complications were temporary and treatable, but 3% were permanent, eg brain damage from a stroke ( could have been prevented after an operation), 8.5% were life-threatening and 2.4% "caused or contributed to a patient's death."

The study's lead author, Dr. Christopher Landrigan, said "these harms are still very common, and there's no evidence that they're improving". Many of the problems were caused by the hospitals' failure to use protective measures that have been proven to improve care including computerizing patient records and drug prescription orders, using checklists for surgical procedures and other methods. He noted that the frequency of medical errors and injuries has been underestimated and there is a need for a mandatory monitoring system.

Some experts on hospital safety said heathcare providers should have a culture of strong communication and teamwork and it is essential that hospitals be more open about reporting problems. Some suggest that patients need cultural change too in ensuring their own safety, eg discussing about drug interactions with the doctor or asking if the doctor has washed his/her hands!

In the US, 27 state laws require public reporting of hospital-acquired infection rates. In 2005, all hospitals in New York were required by legislation to report hospital-acquired infections to the NY State Department of Health. In 2009, the NY Department of Health issued a state-wide report on hospital-by-hospital infection rates. They said that the information will help patients make more informed choices and allow hospitals to compare with other providers.

In the UK, despite promoting hand hygiene among staff, patients and visitors in NHS Trusts in England and Wales to reduce hospital acquired infections, infection rates and resulting harm are still very high.

In June 2010, the Health Secretary, Andrew Lansley, announced that as part of the new government's information revolution, infection figures for all hospitals in England will be published on a weekly basis from July on the government website . By making the data available to patients as well as hospital managers, he said people can make comparisons between different hospitals and healthcare organisations.

Have you washed your hands? Would you be offended if a patient or a colleague asks if you have washed your hands? What's your veiw?

Source : Temporal Trends in Rates of Patient Harm Resulting from Medical Care. N Engl J Med 2010; 363:2124-2134 ( full text via Athens )

Antibiotics for pediatric ear infections - benefits and risks

Middle ear infections, known as acute otitis media (AOM), are the most common childhood illness in the US where antibiotics are routinely prescribed. According to a new study published in JAMA, using antibiotics to treat newly diagnosed acute ear infections among children is modestly more effective than no treatment, but causes adverse effects.


US researchers, requested by the American Academy of Pediatrics, to update practice guidelines for treating children's ear infections, reviewed 125 published previous on the effect of antibiotics and found that 80% of children with ear infections would recover within about 3 days without antibiotics. If all of the children were treated with antibiotics, an additional 12 would improve in 3 days, but 5 to 10% of the children would develop diarrhea.

They found no evidence that higher- priced antibiotics work better in general than generic ones and there is a wide variation in diagnosis and management of AOM, they suggested that using an otoscope may help improve the accuracy of diagnosis.

The authors concluded that doctors need to weigh the risks and benefits "before prescribing immediate antibiotics for uncomplicated AOM" and further research is needed.



Source: Diagnosis, Microbial Epidemiology, and Antibiotic Treatment of Acute Otitis Media in Children - A Systematic Review. JAMA. 2010;304(19):2161-2169. (f/t via Athens)

Do you need to find information for patients?

According to NHS Evidence, a recent research shows that 53% of professionals are most likely to be looking for patient information specifically when conducting a search for health and social care information.

NHS Evidence provides access to more than 8,000 pieces of accredited patient and public information including fact sheets, patient health questionnaires and guidance on conditions, treatment choices and support to help patints and carers make informed choices.

You can browse the leaflets by subject, alphabet or publisher and you can print them.

Using pre-surgery checklists can reduce medical errors

At the end of a long day, Dr David Ring, a hand surgeon at Massachusetts General Hospital, walked into the operating room and performed the last operation - he did a carpal-tunnel release on his trigger finger patient!

In an extraordinary open admssion of performing wrong surgery in this week's NEJM, Dr Ring said leading up to the wrong surgery were a series of events and mistakes that occurred during the course of the day, such as poor scheduling and staffing, the patient's left arm was marked at the wrist, not at the finger, and the marking was washed away etc.

Dr. Ring realized his error while dictating the report, and immediately notified both the hospital and the patient of the error. He performed the correct procedure that day without complication. However, the patient lost faith in him and sought treatment elsewhere. The hospital waived all her charges and paid a financial settlement shortly after the event.

Dr. Ring asked the case be presented at the departmental conference and published in the Case Records of the Massachusetts General Hospital because he wanted to encourage others to follow procedures that would prevent similar errors in the future. He said "I hope that none of you ever have to go through what my patient and I went through. I no longer see these protocols as a burden. That is the lesson." Dr Ring was praised for his courage by patient safety advocates and his counterparts.

In the same issue of the NEJM, a team of Dutch researchers published a study showing the dramatic effect of implementing surgical safety checklists in reducing surgical errors. Comparing hospitals that use pre-surgery checklists with those that do not, the researchers found that surgical complications fell dramatically from a level of 27% to just 17%. In- hospital mortality decreased from 1.5 to 0.8%, but the outcomes in the 5 control hospitals did not change.

In an accompanying editorial, the author said studies have shown the use of surgical checklists can have dramatic effect in reducing both complications and mortality and believed that they have "crossed the threshold from good idea to standard of care".

Studies have found that serious errors such as wrong-site surgery or wrong patient did occur, often due to simple mistakes or surgical team failing to perform pre-operation checks. Wrong-site surgery occurs in all surgical specialties, 68% of claims in the US related to orthopedic surgery. The American Academy of Orthopaedic Surgeons (AAOS) developed the "Sign Your Site" initiative in 1998 advising surgeons to mark the surgical site with their initials in order to avoid errors.

In the UK, more than 129,000 surgical incidents were reported to the National Patient Safety Agency (NPSA) in 2007. Over 1,000 resulted in severe harm and 271 death. The NPSA issued a patient safety alert in January 2009, requiring NHS organisations to implement the WHO Surgical Safety Checklist for every patient undergoing a surgical procedure. All hospitals in England and Wales must implement use of the Surgical Checklist by February 2010.

The checklist focuses on basic good practice before anaesthesia is administered, before a patient is cut open, and before a patient is removed from the operating theatre, and is designed to promote effective teamwork and prevent infection and unnecessary blood loss. NHS organisations can adapt it for their own use.

Source:
"Case 34-2010 — A 65-Year-Old Woman with an Incorrect Operation on the Left Hand". NEJM 2010; vol 11, 363:1950-1957 ( full text via Athens )

"Effect of a Comprehensive Surgical Safety System on Patient Outcomes". NEJM 2010; vol 11, 363:1928-1937 ( Netherlands trial, full text via Athens)

Editorial : "Strategies for Improving Surgical Quality — Checklists and Beyond". NEJM 2010; vol 11, 363:1963-1965 ( full text via Athens)

Could stronger statins save lives?

Statin is one of the world's biggest selling drug for lowering LDL cholesterol, a new research suggests using more potent doses of statin could prevent thousands more heart attacks and strokes.


40,000 high-risk patients were assessed for major vascular events after one year of randomisation to either regular or intensive treatment statin. The results, published in The Lancet, found that stronger treatments reduced major heart attacks and strokes by 15%. This included a 13% cut in heart-related death or non-fatal heart attacks, a 19% drop in bypass and other coronary treatments, and a 16% drop in strokes.

However, the study warned that simply raising the dose of simvastain might lead to health problem as muscle weakness and muscle damage are some of the known side effects.

Source: "Intensive lowering of LDL cholesterol with 80 mg versus 20 mg simvastatin daily in 12 064 survivors of myocardial infarction: a double-blind randomised trial". The Lancet, Early Online Publication, 9 November 2010 (full text via Athens)

Does vitamin E increase stroke risk?

Previous studies suggested taking vitamin E can protect the heart from coronary heart disease, but a BMJ study found that taking vitamin E could slightly increase the risk of haemorrhagic stroke - bleeding in the brain. Stroke is the third biggest cause of death in the UK

Researchers identified 9 studies with about 119,000 people randomised either to vitamin E or placebo on the outcome of stroke. They found that vitamin E increased the risk of haemorrhagic stroke by 22%, also found that vitamin E reduced the risk of ischaemic stroke by 10%. Given the small reduction in the risk of ischaemic stroke is exceeded by the incraese in the risk of haemorrhagic stroke, the researchers concluded that the widespread use of vitamin E should be avoided.

Critics say the findings are of small statistical significance, more research is needed to determine the level of Vitamin E that can become harmful. They "urge people to maintain a lifestyle of a balanced diet, regular exercise and monitoring their blood pressure to reduce their risk of a stroke."

Source: "Effects of vitamin E on stroke subtypes: meta-analysis of randomised controlled trials". BMJ 2010; 341:c5702 (Published 4 November 2010) free f/t.

Alcohol is more harmful than heroin or crack cocaine

A new study, published in the Lancet, found that alcohol is the most harmful drug above heroin and crack cocaine based on harm caused to the user and others.

The investigation was led by David Nutt, former government drugs adviser sacked after criticising government policies on cannabis. The team reviewed a range of drug harms using the multicriteria decision analysis modelling, drugs were scored with 100 being the most harmful and 0 being no harm at all. They found that overall alcohol scored 72, heroin 55 and crack cocaine 54. The authors said "the present drug classification systems have little relation to the evidence of harm" and that the findings showed that ‘aggressively targeting alcohol harms is a valid and necessary public health strategy."

Some newspapers reported the DH said it is determined to prevent alcohol abuse without disadvantaging those who drink sensibly.

In an accompanying commentary, "Ranking of drugs: a more balanced risk-assessment" The Lancet, 376(9752): 1524-25, the Dutch experts said "the new data provide a valuable contribution for the re-evaluation of current drug classification in the UK", but the study did not address the polydrug use which can make some drugs much more dangerous. However this was outside the scope of the study.

Source: Drug harms in the UK: a multicriteria decision analysis. The Lancet 376(9752):1558-1565 ( full text va Athens)

Tips on MRCP, PACES, MRCGP exams

The following "The way I see it" articles published in BMJ Careers may be of interest to those who are preparing for the MRCP, FACES, MRCGP exams.

"When should I sit the MRCP?" - a consultant nephrologist suggested that taking the exams early has competitive advantage.

"Taking the MRCP early on" - a founadtion doctor thought that taking the exam early will help stand out from the crowd and has many advantages.

"Passing the MRCP written papers" - a SpR gave useful tips on passing the exam.


"The new MRCP PACES station 5" - 2 SpRs wrote about the changes and format of the new station 5 and offered advice on how to prepare for the exam - "the key is timing and maintaing professional behaviour throughout."

"Passing PACES" - a SpR offered Dos and Don'ts to help you "don't fall at the final hurdle - the PACES exam".

"MRCGP applied knowledge test" - a GP trainee offered advice on preparing for the new MRCGP AKT.

See also previous post on Passing postgraduate exam techniques

Share your views and experience to help others better prepare for the exams! If you like to add more information on this topic, click on "comment" and "send."

Is light drinking during pregnancy safe?

The finding from a UCL study suggesting that a glass of wine a week during pregnancy will not harm your child's development has caused controversy but the lead author said that the more the social factors were taken into account, the weaker the association became.


The study involved over 11,000 women who were asked about their drinking habits and their child's development until they were 5 years old. They found that children born to light drinkers were 30% less likely to have behavioural problems and achieve higher scores on cognitive tests than those whose mothers did not drink during pregnancy.

Some experts said that the study was flawed because it only looked at children up to the age of 5. The Dep of Health said "After assessing the available evidence, we cannot say with confidence that drinking during pregnancy is safe and will not harm your baby...... Our advice to pregnant women and women trying to conceive is to avoid alcohol", reported in the Telegraph.

An US alcohol epidemiologist said that alcohol is the leading fetal neurotoxin in the world, there is no safe amount of alcohol a pregnant woman can drink based on the evidence that alcohol kills brain cells in the developing fetus, reported in White Coat Note.

So the debate goes on.

Source: Light drinking during pregnancy: still no increased risk for socioemotional difficulties or cognitive deficits at 5 years of age? Journal of Epidemiology and Community Health 2010, October

Mild Alzheimer's patients to get treatment on NHS

BBC News reported that following a U-turn by the health watchdog, patients in the early stages of Alzheimer's disease could get drug treatments that were previously only available to patients with more advanced cases.

NICE has now given new draft guidance for the treatment of Alzheimer's disease that people with mild symptoms should also get the drugs and recommends a 4th drug, Ebixa, for patients with severe Alzheimer's. The final decision will be made later this year.

Latest data shows that about 380,000 people in England and Wales have Alzheimer's and more than 50% are estimated to have mild to moderately severe disease.

Hands-only CPR saves more lives

According to a study published in JAMA this week, hands-only CPR saves more lives in cardiac arrests.

Out of hospital cardiac arrest is a major public health problem in the US, in 2005, Arizona launched a programme to encourage the public to use compression-only CPR (COCPR) to improve survival.

The study included 2900 patients who received no bystander CPR, 666 conventional CPR and 849 COCPR. The researchers found that "among patients who received bystander CPR, the proportion with COCPR increased significantly over time, from 19.6% in 2005 to 75.9% in 2009", COPR was associated with a 60% improved odds of survival comapred with no bystander CPR or conventional CPR. The authors said that COPR has the advantage of minimizing interruptions in chest compressions during CPR.

In an accompanying editorial, the author said that the findings should encourage continuing investigations into the compressio-only CPR method. "Healthcare professionals involved in resuscitation should look to new Guidelines 2010 dodcuments for the international consensus on the science of compression-only CPR ........ to encourage the general public to learn this simple and potentially lifesaving skills".

However, a Lancet article published in April 2010 (17;375(9723):1347-54. Epub 2010 Mar 2. )states that "for children who have out-of-hospital cardiac arrests from non-cardiac causes, conventional CPR by bystander is the preferable approach to resuscitation. For arrests of cardiac causes, either conventional or compression-only CPR is similarly effective".

The 2010 Resuscitation guidelines will be available at Resuscitation Council (UK) website on 18 October 2010.

Source : Chest Compression–Only CPR by Lay Rescuers and Survival From Out-of-Hospital Cardiac Arrest. JAMA. 2010;304(13):1447-1454. doi:10.1001/jama.2010.1392 (f/t via Athens)

Editorial : Compression-Only CPR . JAMA. 2010;304(13):1493-1495. doi:10.1001/jama.2010.1420 (f/t via Athens)

Want to be happy?

A popular theroy of happiness states that happiness is 50% genetic but a new study finds that the choices you make in life can equally affect long-term happiness.

The findings are based on the data collected from a 25-year study on 60,000 Germans from 1984 to 2008. The researchers found that choices relating to partner, balance between work and leisure, participation in social activities and healthy lifestyle are key factors in determining satisfaction in life. For example, the findings show that having neurotic partners significantly reduce life happiness. People who prioritise altruistic and family goals are happier than those who prioritise career and material success. Church attendance, getting involved in social and community events and regular exercises are equally important in affecting happiness.

The authors says the study is the most extensive of its kind and a breakthrough in psychological research. They concluded that life happiness is chosen not predetermined, it has a lot to do with life choices and people can change their life goals. Although the study was based on Germans, the findings can also be applied in other parts of the world. The study is published in Proceedings of the National Academy of Sciences (PNAS).

Source: Long-running German panel survey shows that personal and economic choices, not just genes, matter for happiness. PNAS. doi: 10.1073/pnas.1008612107 . Published online before print October 4, 2010, free open access article

Look AHEAD trial - lifestyle intervention for diabetes

Following the Avandia scandal in July 2010, the European Medicines Agency (EMA) on 23 Sept recommended the suspension of the rosiglitazone-containing anti-diabetes medicines Avandia, Avandamet and Avaglim, they will be banned in Europe within the next few months. At the same time, the US government put toughened resrictions on the use of the drug. Critics say these "decisions will virtually eliminate use of the drug around the world".

According to a new study published in the Archives of Internal Medicine, 27 September, lifestyle interventions are recommended to improve glycemic control and risk factors in type 2 diabetes to prevent long-term complications, but the evidence of their efficacy is limited to short-term studies.

The authors said that the Look AHEAD study, a 4-year non-drug approach using intensive lifestyle interventions helped reduce cardiovascular risk factors in type 2 diabetics. The trial randomized 5145 patients with type 2 diabetes to following an intensive lifestyle- intervention program or to receive standard diabetes support and education. The intensive program including a combination of diet modification and physical exercises, with training and group support, was designed to achieve 7% weight loss in the first year and to maintain the weight in subsequent years.

After 4 years, the intensive intervention group maintained a weight loss of 6.15% of their weight compared with 0.88 % in the standard support group. They also experienced greater improvements in fitness, blood sugar, blood pressure, triglycerides and good cholesterol. The standard group had lower levels of bad cholesterol.

The authors said that the result indicated that the intensive intervention group had been exposed to lower cardiovascular disease risk factors during the trial, although it would be too early to say that intensive intervention can prevent heart attacks, there may be long-term benefits from the 4-year period. The study is continuing for several more years.

Should we look beyond Avandia and other drugs for diabetes treatment and invest in more preventive efforts?

Source: Long-term Effects of a Lifestyle Intervention on Weight and Cardiovascular Risk Factors in Individuals With Type 2 Diabetes Mellitus - Four-Year Results of the Look AHEAD Trial. The Look AHEAD Research Group. Arch Intern Med. 2010;170(17):1566-1575. (f/t via Athens)