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

 
Werewolf: Katniss Joins The News Team

From the outset, the Hunger Games series has dwelt obsessively on the ways that media images infiltrate our public and personal lives... From that grim starting point, Mockingjay Part One takes the process a few stages further. There is very little of the film that does not involve the characters (a) being on screens (b) making propaganda footage to be screened and (c) reacting to what other characters have been doing on screens. More>>

ALSO:

Scoop Review Of Books: Ko Witi Te Kaituhituhi

Witi Ihimaera, the distinguished Māori author and the first Māori to publish a book of short stories and a novel, has adopted a new genre with his latest book. But despite its subtitle, this book is a great deal more than a memoir of childhood. More>>

Werewolf: Rescuing Paul Robeson

Would it be any harder these days, for the US government to destroy the career of a famous American entertainer and disappear them from history – purely because of their political beliefs? You would hope so. In 1940, Paul Robeson – a gifted black athlete, singer, film star, Shakespearean actor and orator – was one of the most beloved entertainers on the planet. More>>

ALSO:

"Not A Competition... A Quest": Chapman Tripp Theatre Award Winners

Big winners on the night were Equivocation (Promising Newcomer, Best Costume, Best Director and Production of the Year), Kiss the Fish (Best Music Composition, Outstanding New NZ Play and Best Supporting Actress), and Watch (Best Set, Best Sound Design and Outstanding Performance). More>>

ALSO:

Film Awards: The Dark Horse Scores Big

An inspirational film based on real life Gisborne speed-chess coach An inspirational film based on real life Gisborne speed-chess coach Genesis Potini, made all the right moves to take out top honours along with five other awards at the Rialto Channel New Zealand Film Awards - nicknamed The Moas. More>>

ALSO:

Theatre: Ralph McCubbin Howell Wins 2014 Bruce Mason Award

The Bruce Mason Playwriting Award was presented to Ralph McCubbin Howell at the Playmarket Accolades in Wellington on 23 November 2014. More>>

ALSO:

One Good Tern: Fairy Tern Crowned NZ Seabird Of The Year

The fairy tern and the Fiji petrel traded the lead in the poll several times. But a late surge saw it come out on top with 1882 votes. The Fiji petrel won 1801 votes, and 563 people voted for the little blue penguin. More>>

Music Awards: Lorde Reigns Supreme

Following a hugely successful year locally and internationally, Lorde has done it again taking out no less than six Tuis at the 49th annual Vodafone New Zealand Music Awards. More>>

ALSO:

Get More From Scoop

 
 

LATEST HEADLINES

 
 
 
 
Education
Search Scoop  
 
 
Powered by Vodafone
NZ independent news