• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to secondary sidebar
  • Home
  • About
    • Contact
    • Privacy
    • Terms of use
  • Subscribe
  • Your Membership

Science and Technology News

Dedicated to the wonder of discovery

  • News
  • Features
  • Life
  • Health
  • Research
  • Engineering

Machine learning ‘accurately predicts cardiac arrest risk’

May 19, 2021 by Editor

A branch of artificial intelligence (AI), called machine learning, can accurately predict the risk of an out of hospital cardiac arrest – when the heart suddenly stops beating – using a combination of timing and weather data, finds research published online in the journal Heart.

Machine learning is the study of computer algorithms, and based on the idea that systems can learn from data and identify patterns to inform decisions with minimal intervention.

The risk of a cardiac arrest was highest on Sundays, Mondays, public holidays and when temperatures dropped sharply within or between days, the findings show.

This information could be used as an early warning system for citizens, to lower their risk and improve their chances of survival, and to improve the preparedness of emergency medical services, suggest the researchers.

Out of hospital cardiac arrest is common around the world, but is generally associated with low rates of survival. Risk is affected by prevailing weather conditions.

But meteorological data are extensive and complex, and machine learning has the potential to pick up associations not identified by conventional one-dimensional statistical approaches, say the Japanese researchers.

To explore this further, they assessed the capacity of machine learning to predict daily out-of-hospital cardiac arrest, using daily weather (temperature, relative humidity, rainfall, snowfall, cloud cover, wind speed and atmospheric pressure readings) and timing (year, season, day of the week, hour of the day, and public holidays) data.

Of 1,299,784 cases occurring between 2005 and 2013, machine learning was applied to 525,374, using either weather or timing data, or both (training dataset).

The results were then compared with 135,678 cases occurring in 2014-15 to test the accuracy of the model for predicting the number of daily cardiac arrests in other years (testing dataset).

And to see how accurate the approach might be at the local level, the researchers carried out a “heatmap analysis”, using another dataset drawn from the location of out of hospital cardiac arrests in Kobe city between January 2016 and December 2018.

The combination of weather and timing data most accurately predicted an out of hospital cardiac arrest in both the training and testing datasets.

It predicted that Sundays, Mondays, public holidays, winter, low temperatures and sharp temperature drops within and between days were more strongly associated with cardiac arrest than either the weather or timing data alone.

The researchers acknowledge that they didn’t have detailed information on the location of cardiac arrests except in Kobe city, nor did they have any data on pre-existing medical conditions, both of which may have influenced the results.

But they suggest: “Our predictive model for daily incidence of (out of hospital cardiac arrest) is widely generalisable for the general population in developed countries, because this study had a large sample size and used comprehensive meteorological data.”

They add: “The methods developed in this study serve as an example of a new model for predictive analytics that could be applied to other clinical outcomes of interest related to life-threatening acute cardiovascular disease.”

And they conclude: “This predictive model may be useful for preventing [out of hospital cardiac arrest] and improving the prognosis of patients… via a warning system for citizens and [emergency medical services] on high-risk days in the future.”

In a linked editorial, Dr David Foster Gaieski, of Sidney Kimmel Medical College at Thomas Jefferson University, agrees.

“Knowing what the weather will most likely be in the coming week can generate ‘cardiovascular emergency warnings’ for people at risk – notifying the elderly and others about upcoming periods of increased danger similar to how weather data are used to notify people of upcoming hazardous road conditions during winter storms,” he explains.

“These predictions can be used for resource deployment, scheduling and planning so that emergency medical services systems, emergency department resuscitation resources, and cardiac catheterisation laboratory staff are aware of, and prepared for, the number of expected (cases) during the coming days,” he adds.

Share this:

  • Twitter
  • Facebook
  • Print
  • LinkedIn
  • Reddit
  • Pinterest
  • WhatsApp

Related Posts

  • One in ten cardiac arrest patients phoned emergency services the day before
    31
    One in ten cardiac arrest patients phoned emergency services the day beforeDifficulty breathing is the most common symptom before cardiac arrest, according to research presented at ESC Congress 2021. “Breathing problems more frequently preceded cardiac arrest than chest pain,” said study author Mr. Filip Gnesin, a research scholar at North Zealand Hospital, Hillerød, Denmark. “Since difficulty breathing is also a sign…
    Tags: arrest, cardiac, medical, emergency, health

Filed Under: Health, Life Tagged With: accurately, arrest, cardiac, cases, daily, data, emergency, hospital, learning, machine, medical, model, public, researchers, risk, services, study, timing, weather

Primary Sidebar

Latest news

  • AutoX expands robotaxi operation zone to 1,000 sq km
  • Schaeffler acquires precision gearbox maker Melior Motion 
  • Sunflower Labs provides its security drone system to range of new customers
  • Monarch Tractor showcases ‘world’s first fully electric, driver-optional tractor’
  • Robot performs laparoscopic surgery without guiding hand of a human
  • Amazon owner’s Blue Origin to buy asteroid mining company Honeybee Robotics
  • Sydney scientists achieve ‘99 per cent accuracy’ for quantum computing in silicon
  • Ceremorphic unveils plans to build supercomputer infrastructure on 5 nanometer chips
  • Motion capture is guiding the next generation of extraterrestrial robots
  • Baidu’s autonomous electric carmaker Jidu raises $400 million in Series A financing

Most read

  • AutoX expands robotaxi operation zone to 1,000 sq km
    AutoX expands robotaxi operation zone to 1,000 sq km
  • Schaeffler acquires precision gearbox maker Melior Motion 
    Schaeffler acquires precision gearbox maker Melior Motion 
  • Sunflower Labs provides its security drone system to range of new customers
    Sunflower Labs provides its security drone system to range of new customers
  • Monarch Tractor showcases ‘world’s first fully electric, driver-optional tractor’
    Monarch Tractor showcases ‘world’s first fully electric, driver-optional tractor’
  • Robot performs laparoscopic surgery without guiding hand of a human
    Robot performs laparoscopic surgery without guiding hand of a human
  • Amazon owner’s Blue Origin to buy asteroid mining company Honeybee Robotics
    Amazon owner’s Blue Origin to buy asteroid mining company Honeybee Robotics
  • Sydney scientists achieve ‘99 per cent accuracy’ for quantum computing in silicon
    Sydney scientists achieve ‘99 per cent accuracy’ for quantum computing in silicon
  • Ceremorphic unveils plans to build supercomputer infrastructure on 5 nanometer chips
    Ceremorphic unveils plans to build supercomputer infrastructure on 5 nanometer chips
  • Motion capture is guiding the next generation of extraterrestrial robots
    Motion capture is guiding the next generation of extraterrestrial robots
  • Baidu’s autonomous electric carmaker Jidu raises $400 million in Series A financing
    Baidu’s autonomous electric carmaker Jidu raises $400 million in Series A financing

Secondary Sidebar

Categories

  • Agriculture
  • Archaeology
  • Astronomy
  • Biology
  • Brain
  • Chemistry
  • Computer games
  • Computing
  • Digital Economy
  • Education
  • Energy
  • Engineering
  • Environment
  • Features
  • Genetics
  • Health
  • History
  • Industry
  • Life
  • Nature
  • News
  • Opinion
  • Physics
  • Research
  • Science
  • Social
  • Space
  • Technology
  • Uncategorized
  • Universe

Copyright © 2023 · News Pro on Genesis Framework · WordPress · Log in