Canadian Medical Association Journal health news articles

CCSVI role in multiple sclerosis seems to be controversial
Chronic cerebrospinal venous insufficiency (CCSVI) appears to be more common in people with multiple sclerosis than in people without the condition, states a review of published studies in CMAJ (Canadian Medical Association Journal).However, there are not enough high-quality studies to allow definitive conclusions.

Immigrant and refugee health guidelines for physicians
The largest, most comprehensive evidence-based guidelines to immigrant health - designed to help Canadian physicians meet the unique needs of this group - are being published in CMAJ (Canadian Medical Association Journal).

Antidepressants in pregnancy increase miscarriage risk
There is a 68% increase in the overall risk of miscarriage in pregnant women using antidepressants, found a new study in CMAJ (Canadian Medical Association Journal).

Asthma complicates H1N1 in children
Asthma is a significant risk factor for severe disease in children with pandemic H1N1 compared with the seasonal flu, revealed by Canadian researchers.

Statins may cause muscle damage in some patients
Structural muscle damage may be present in patients who have statin-associated muscle complaints, found a new study in CMAJ (Canadian Medical Association Journal).

Heart disease mortality decreased 30% in Canada
Hospital admissions and mortality for heart diseases (cardiovascular disease) declined 30% over a 10-year period in Canada, revealed by canadian researchers.

Multivitamins in pregnancy avoid underweight babies
Prenatal multivitamin supplements are associated with a significantly reduced risk of babies with a low birth weight (underweight babies) compared with prenatal iron-folic acid supplementation, found a new study in the Canadian Medical Association Journal (CMAJ).

Lyme disease is spreading in Canada
Lyme disease is emerging in Canada, and is expected to increase with climate change, but effective, enhanced surveillance and clinician awareness will be key to minimizing the impact of the disease, write researchers in a review in CMAJ (Canadian Medical Association Journal).

Marijuana smoking increases COPD risk for tobacco smokers
Smoking both tobacco and marijuana increases the risk of respiratory symptoms and chronic obstructive pulmonary disease (COPD), found a study in CMAJ.

Gonorrhea increases from 2% to 28% in Ontario, Canada
The prevalence of quinolone-resistant gonorrhea has increased rapidly in Ontario – Canada's most populous province – from a rate of 2% in 2001 to 28% in 2006, found a study published in CMAJ.

Proton pump inhibitors increase heart attacks in patients on clopidogrel
Patients taking the common cardiac drug clopidogrel following a heart attack are at a significantly higher risk of a recurrence if they are also taking widely used acid-lowering medications called proton pump inhibitors.

Breast size predicts type 2 diabetes risk
Elevated waist circumference and body mass index (BMI), both traditional measures of obesity, are accepted risk factors for type 2 diabetes mellitus. Girls who are obese experience earlier onset of puberty and possibly greater breast development. Young women with a larger bra cup size may be at higher risk of diabetes in adulthood, says a new study led by St. Michael's Hospital physician Joel Ray.

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