Education Policy | Post Primary | Preschool | Primary | Tertiary | Search

 


Cannabis Linked To Higher Stroke Risk In Young Adults

Smoking Cannabis Linked To Higher Stroke Risk In Young Adults

Cannabis use may double the stroke risk in young adults, according to a recent study by researchers in the Centre for Brain Research at The University of Auckland.

The study showed that ischemic stroke and transient ischemic attack (TIA) patients were 2.3 times more likely to have cannabis detected in urine tests as other age and sex matched patients.

“This is the first case-controlled study to show a possible link to the increased risk of stroke from cannabis,” said Professor Alan Barber, lead investigator for the study and Neurological Foundation professor of clinical neurology at the University. “Cannabis has been thought by the public to be a relatively safe, although illegal substance. This study shows this might not be the case; it may lead to stroke.”

Professor Barber this week presented the study findings to the American Stroke Association’s International Stroke Conference 2013 in Honolulu. The study included 160 ischemic stroke/TIA patients aged 18-55 years who had urine screens upon admission to the hospital.

Among the patients, 150 had ischemic stroke and 10 had TIAs. Sixteen percent of patients tested positive for cannabis, and were mostly male who also smoked tobacco, while only 8.1 percent of controls tested positive for cannabis in urine samples. Researchers found no differences in age, stroke mechanism or most vascular risk factors between cannabis users and non-users.

In previous case reports, ischemic stroke and TIAs developed hours after cannabis use, says Professor Barber. “These patients usually had no other vascular risk factors apart from tobacco, alcohol and other drug usage. It’s challenging to perform prospective studies involving illegal substances such as cannabis because “questioning stroke and control patients about cannabis use is likely to obtain unreliable responses,” he says.

The study provides the strongest evidence to date of an association between cannabis and stroke, says Professor Barber. But the association is confounded because all but one of the stroke patients who were cannabis users also used tobacco regularly.

“We believe it is the cannabis use and not tobacco,” says Professor Barber, who hopes to conduct another study to determine whether there’s an association between cannabis and stroke independent of tobacco use.

“This may prove difficult given the risks of bias and ethical strictures of studying the use of an illegal substance,” he says. “However, the high prevalence of cannabis use in this cohort of younger stroke patients makes this research imperative.”

Physicians should test young people who come in with stroke for cannabis use, says Professor Barber. “People need to think twice about using cannabis, because it can affect brain development and result in emphysema, heart attack and now stroke.”

The study was funded by the Auckland District Health Board’s A+ Trust. Co-authors were: Dr Neil E. Anderson (ADHB), Dr Heidi Pridmore, Dr Venkatesh Krishnamurthy, Dr Sally Roberts, Dr David A. Spriggs, and Dr Kristie Carter.

ENDS

© Scoop Media

 
 
 
 
 
Culture Headlines | Health Headlines | Education Headlines

 

2015: Elton John Plans Wellington Show

After nine years, Elton John and his band will return to Westpac Stadium, Wellington for one spectacular concert! The November 21, 2015 concert will feature iconic hits and classic album tracks from throughout his incredible five-decade career... More>>

Book Awards: Jill Trevelyan's Story Of Peter McLeavey Is Book Of The Year

The story of Wellington art dealer Peter McLeavey and his gallery has won the prestigious New Zealand Post Book of the Year 2014 in a glittering ceremony in Wellington. More>>

ALSO:

Scoop Review Of Books: King Richard

Simon Nathan reviews 'Richard Seddon, King of God’s Own': My father grew up in Wellington during Seddon’s premiership... I can recall him standing under the Seddon statue in the grounds of parliament and telling me that Seddon had more backbone than Sid Holland and all his cabinet colleagues put together.. More>>

8 October: Miley Cyrus Bangerz Tour Coming To Auckland!

Dainty Group announced today that global superstar Miley Cyrus will bring her BANGERZ TOUR to New Zealand in October this year. This will be Miley’s first ever visit to New Zealand and there will only be one Auckland show before she takes her tour to Australia. More>>

ALSO:

Music: Lorde NZ Tour Confirmed In Four Major Cities!

In what will be her first ever New Zealand headline tour, Frontier Touring and Brent Eccles Entertainment are stoked to bring you four epic shows across the country! The all ages concerts take place late October/ early November in Christchurch, Dunedin, Wellington and Auckland. More>>

ALSO:

Scoop Review Of Books: Poor Economics

A review of and excerpt from Jonathan Boston and Simon Chapple’s Child Poverty in New Zealand. Review by Marlene Ware. More>>

Head Count: Highest Population Growth Since 2003

The country’s population grew by 67,800 people, or 1.5 percent, in the year to 30 June 2014. This came from natural increase (births minus deaths) of 29,500 and net migration (arrivals minus departures) of 38,300. New Zealand's estimated resident population was 4.51 million at 30 June 2014. More>>

Fun-Enhancement: Research To Ensure Even Game For Less Skilled Players

A University of Canterbury engineering PhD student is researching sports, such as table tennis, to ensure closer games for both better and less skilled players. More>>

Get More From Scoop

 
 

LATEST HEADLINES

 
 
 
 
Education
Search Scoop  
 
 
Powered by Vodafone
NZ independent news