Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Electric shocks can cause neurologic and neuropsychological symptoms

19.05.2008
Université de Montréal study in American Journal of Emergency Medicine

Canadian researchers have shown that an electric shock ranging from 120 to 52,000 volts can cause neurologic and neuropsychological symptoms in humans.

Following an electrical injury, some patients may show various emotional and behavioral aftereffects, such as memory loss and symptoms of depression.

The study, supported by a grant from Hydro-Québec and conducted by clinicians from the Université de Montréal’s Faculty of Medicine and Sainte-Justine Hospital, is published in the May edition of the American Journal of Emergency Medicine.

ER pediatrician and toxicologist Dr. Benoit Bailey, in collaboration with pediatricians Pierre Gaudreault and Robert Thivierge, assessed the prevalence of short-term neurologic and neuropsychological symptoms as well as one year after an electric shock severe enough to require 24-hour cardiac monitoring. Their goal was to explore whether any symptoms were associated with risk factors such as transthoracic current, neuromuscular spasms (tetany), loss of consciousness or shock of 1000 volts or more.

Twenty-one hospital centers throughout Quebec participated in the study conducted from October 2000 to November 2004. Some 134 patients, aged one to 67, took part in the study.

Participants included 26 children, as well as 88 people who were victims of work-related accidents. The majority of electric shocks reported (48 per cent) were from domestic causes (120 to 240 volts), while 38 per cent were industrial (347 to 1200 volts).

Telephone follow-ups were conducted by a research nurse to evaluate the appearance of neurologic and neuropsychological symptoms: general fatigue, pains, muscular weakness, numbness of the extremities, headaches, memory loss, psychological symptoms, dizziness, or depression.

An initial follow-up was completed in the months after the electric shock, while a second interview was conducted a year later.

At the short-term follow-up, 30 of 114 patients (26%) complained of new neurologic or neuropsychological symptoms. The most common symptoms were general fatigue and pain. At the one-year follow-up, 24 of 86 patients (28%) still suffered from these symptoms; a dozen of these even developed new symptoms.

“The cause of the neurologic and neuropsychological symptoms after an electrical shock is unclear,” says Dr. Bailey. “Several mechanisms are probably involved. We did observe that symptoms from electric shocks are similar to symptoms following a cranial trauma. That’s why ER doctors should inform their patients who suffer an electric shock of possible symptoms, in the short and medium term, and conduct similar follow-ups as they would with cranial trauma patients.”

Julie Gazaille | EurekAlert!
Further information:
http://www.umontreal.ca

More articles from Studies and Analyses:

nachricht New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg

nachricht Disarray in the brain
18.12.2017 | Universität zu Lübeck

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Thanks for the memory: NIST takes a deep look at memristors

22.01.2018 | Materials Sciences

Radioactivity from oil and gas wastewater persists in Pennsylvania stream sediments

22.01.2018 | Earth Sciences

Saarland University bioinformaticians compute gene sequences inherited from each parent

22.01.2018 | Life Sciences

VideoLinks Wissenschaft & Forschung
Overview of more VideoLinks >>>