Showing posts with label Study. Show all posts
Showing posts with label Study. Show all posts
Headache subtypes: 30-year prospective cohort study

Headache subtypes: 30-year prospective cohort study

This BMJ study included 590 people aged 19-20 from a cohort of 4,500 residents of Zurich, Switzerland, interviewed 7 times across 30 years of follow-up.

The one-year prevalence of subtypes of headache were:

- 1% (female:male ratio of 2.8) for migraine with aura
- 11% (female:male ratio of 2.2) for migraine without aura
- 11% (female:male ratio of 1.2) for tension-type headache

The cumulative 30-year prevalence of headache subtypes were:

- 3% for migraine with aura
- 36% for migraine without aura
- 29% for tension-type headache

Despite the high prevalence of migraine without aura, most cases were transient and only 20% continued to have migraine for more than half of the follow-up period.

There was a substantial crossover among the subtypes and no specific pattern of progression.

The longitudinal overlap among subtypes of headache shows the developmental heterogeneity of headache syndromes.

References:

Magnitude, impact, and stability of primary headache subtypes: 30 year prospective Swiss cohort study. BMJ, 2011.

Image source: Openclipart.org, public domain.

What it's like to study medicine at Cambridge (video)

What is "the favorite" for medical students in the UK at the moment? Going into General Practice (at minute 2:45 of the video). They are also "very keen into going into a specialty such as pediatrics". This is a night and day difference compared to their counterparts in the U.S.



From Cambridge University YouTube channel: "At Cambridge, we offer two medicine courses - the Standard Course and the Graduate Course. With both, our aim is to educate students to become compassionate, thoughtful, skilled members - and leaders - of the medical profession.

Success in medicine requires application and hard work, both while studying and when in practice. However, it brings great rewards in terms of job satisfaction, involving as it does a combination of science and human interactions, and numerous career opportunities."

To find out more about Medicine at Cambridge, see http://study.cam.ac.uk/undergraduate/courses/medicine

Comments from Twitter:

Nick Bennett @peds_id_doc: Best medical school in the world. Seriously.

Medical School Life in Cambridge and Debrecen - @Berci compares the promotional videos http://goo.gl/BZm2w

Disease-Specific, Social Network-Initiated Study by Mayo Clinic and Dr. Tweet

Mayo Clinic is the clear leader in social media use by hospitals at this time. Mayo has published 1,500 YouTube videos, has a social media center with approximately 20 employees, and external advisory board with experts that span the globe. They have a social media "residency" program where (for a fee) they are ready to teach you how to blog, Twitter, Facebook and YouTube in 3.5 days. Unhappy with the Facebook use for healthcare, Mayo launched their own social network for patients. But why stop there? Mayo Clinic figured out that you can collect data from the clusters of patients with rare conditions that form spontaneously in social networks. This pilot study is a novel example of “patient-initiated research.” I think this is great and potentially very useful to patients and science. Let's hope more hospitals follow in the footsteps of these pioneers.

The two videos below illustrate the start of Disease-Specific, Social Networking Community-Initiated Study Focused on Spontaneous Coronary Artery Dissection (SCAD):



The chest pain experienced by the woman you're about to meet was much more than a difficult recovery. She had a heart attack when a rare and deadly condition stopped blood flow to her heart. The same thing happened to another woman. After sharing their stories on social networking sites they found more women with the same problem. That's when they contacted Mayo Clinic to convince cardiologists to use the information they gathered on the internet to research this condition.



Dr. Sharonne Hayes, Professor of Medicine in Cardiovascular Diseases at Mayo Clinic in Rochester, MN, discusses her article appearing in the September 2011 issue of Mayo Clinic Proceedings on using social media to research and treat spontaneous coronary artery dissection (SCAD).

After being approached by several members of an international disease-specific support group on a social networking site, the researchers used it to identify patients who had been diagnosed as having at least 1 episode of spontaneous coronary artery dissection and recruited them to participate in a clinical investigation of their condition. Medical records were collected and reviewed, the original diagnosis was independently confirmed by review of imaging studies, and health status (both interval and current) was assessed.

Recruitment of all 12 participants was complete within 1 week of institutional review board approval. All participants completed the study questionnaires and provided the required medical records and coronary angiograms and ancillary imaging data.

This study involving patients with spontaneous coronary artery dissection demonstrates the feasibility of and is a successful model for developing a “virtual” multicenter disease registry through disease-specific social media networks to better characterize an uncommon condition. This study is a prime example of patient-initiated research that could be used by other health care professionals and institutions.

A cute factoid? The lead author of this social network-initiated study is actually called Dr. Tweet (as in a message on Twitter).

References

Electronic Communication and Medical Research: Beyond the Record

Spontaneous Coronary Artery Dissection: A Disease-Specific, Social Networking Community–Initiated Study

Another related video:



Dr. Sharonne Hayes, director of the Mayo Clinic Women's Heart Clinic, Dr. Marysia Tweet and Lee Aase, director of the Mayo Clinic Center for Social Media, discuss findings of a pilot study of SCAD (spontaneous coronary artery dissection) published in September 2011 in Mayo Clinic Proceedings.

40% of police officers have a sleep disorder according to a JAMA study

More than a third of police officers have a sleep disorder, and those who do are more likely to experience heart disease, problems with job performance and rage toward suspects and citizens, says the NYTimes, citing a study in the JAMA. That figure is at least double the estimated 15-20% rate of sleep disorders seen in the general population.

Having a sleep disorder raised the odds of heart disease by 45%, and the odds of depression by 120%. It also raised the odds of being injured on the job by 22% and falling asleep while driving by 51%.


The JAMA report video.

The officers who had sleep disorders reported more instances of “uncontrolled anger” toward suspects and citizens and serious administrative errors. Sleep deprivation may affect the amygdala, a part of the brain where emotion is governed.

Of the 5,000 study participants, 40% screened positive for at least 1 sleep disorder, most of whom had not been diagnosed previously:

- 34% screened positive for obstructive sleep apnea
- 6.5% for moderate to severe insomnia
- 5.4% for shift work disorder

Not surprisingly, the police officer who had smaller body mass indexes were far less likely to have sleep apnea. System-wide practices can have a significant impact. For example, state police officers in Massachusetts are given one hour of paid exercise time four days a week to help them stay fit. They were less liekly to have sleep apnea.

References:

Sleep Problems in Police Officers Take Heavy Toll. NYTimes.
Sleep Disorders, Health, and Safety in Police Officers. JAMA.

Comments from Twitter:

WendySueSwanson MD (@SeattleMamaDoc): Geesh.

@CrumbedOxygen: wonder if EMS similar.

Dr John Weiner @AllergyNet:  Can CPAP Cure Cops?

Martin Wilson @ChInspMWilson: what is CPAP then ...??

@DrVes CPAP (continuous positive airway pressure) is a treatment option for sleep apnea. Here is more info from the Mayo Clinic: http://www.mayoclinic.com/health/cpap/MM00716
Study: Protective role of lower body fat is striking, or how pear is
better than apple

Study: Protective role of lower body fat is striking, or how pear is better than apple

From Reuters:

People who accumulate fat around the abdomen and stomach are more likely to die of heart disease and other causes than bottom-heavy people.

People with fat in their thighs and backsides may live longer because the fat traps harmful fatty particles and actively secretes helpful compounds.

Fat on the bottom and thighs appears to store excess fatty acids. Pear-shaped people also appear to have lower levels of compounds called inflammatory cytokines.

Leg fat may also be better at producing hormones such as leptin, which are made by fat and affect appetite and metabolism.

References:
Why those fat thighs may help you live longer. Reuters, 2010.
Image source: Williams pear, 1822 printing from the Horticultural Society of London. Wikipedia, public domain.
Back and forth: Study fails to show link previously found between virus
and chronic fatigue syndrome

Back and forth: Study fails to show link previously found between virus and chronic fatigue syndrome

A UK study analysing samples from patients with chronic fatigue syndrome has found no evidence of a link with a retrovirus (XMRV). The virus was first described in 2006.

Patients with chronic fatigue syndrome, also known as myalgic encephalomyelitis, often report that their condition—a mix of symptoms including extreme fatigue—began after an otherwise normal viral infection.

The xenotropic murine leukaemia virus-related virus (XMRV) was found in 67% of patients with chronic fatigue syndrome in a study reported last year (Science 2009,326:585-9).


The Gift of Time is a short film about the doctors who discovered the XMRV virus and the breakthru potential for prostate cancer.

References: