Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Darkness More Than Triples EMS Helicopter Crash Fatality Risk

24.01.2006


Bad Weather Increases Risk Eight-Fold

Post-crash fires, darkness or bad weather greatly decrease the likelihood of surviving an emergency medical service (EMS) helicopter crash, according to a study by researchers from the Johns Hopkins Bloomberg School of Public Health’s Center for Injury Research and Policy and Johns Hopkins School of Medicine. Improving crashworthiness of helicopters and reducing trips during hazardous conditions can decrease EMS helicopter fatality rates. The study was recently published online by Annals of Emergency Medicine.

“Crashes of EMS helicopters have increased in recent years, raising concern for patients, as well as pilots, paramedics and flight nurses,” said Susan P. Baker, MPH, a professor in the Bloomberg School of Public Health’s Department of Health Policy and Management and Center for Injury Research and Policy. “Our study found that darkness more than triples the risk of fatalities when EMS helicopters crash and that bad weather increases the risk eight-fold. Helicopter EMS programs should recognize these risky conditions and transport patients by air only when the benefit clearly exceeds the risk of the flight.”



The study authors examined National Transportation Safety Board records of EMS helicopter crashes between January 1, 1983, and April 30, 2005. During the 22-year study period, 184 occupants died in 182 EMS helicopter crashes. A majority (77 percent) of crashes occurred when weather conditions required pilots to fly primarily by referencing their instruments rather than using outside visual cues. In darkness, 56 percent of crashes were fatal, as compared with 24 percent of crashes not in darkness. One in four EMS helicopters is likely to crash during 15 years of service. The death rate for EMS flight crew members is 20 times the rate of all U.S. workers.

The researchers also found that 76 percent of the crashes with post-crash fires were fatal. A previous study by Baker and colleagues published in the August 2005 edition of Aviation, Space and Environmental Medicine, revealed that the potential for post-crash fires in survivable crashes was greater in civilian helicopters than in their military counterparts because the standards for civilian fuel systems are not as strict as those for military helicopters.

Additional studies should be conducted to determine which preventive measures—such as equipping pilots with night-vision goggles, reducing night flights by using a protocol to determine which cases absolutely require helicopter transport, using better restraints, energy-absorbing landing gear and seats and crash-resistant fuel systems—are most efficient and cost effective, according to the study authors.

Co-authors of the study are Susan P. Baker, Jurek G. Grabowski, Robert S. Dodd, Dennis F. Shanahan, Margaret W. Lamb and Guohua Li.

“EMS Helicopter Crashes: What Influences Fatal Outcome?” was supported by grants from the Johns Hopkins Center for Injury Research and Policy, Centers for Disease Control and Prevention and National Institutes of Health.

Public Affairs media contacts for the Johns Hopkins Bloomberg School of Public Health: Kenna Lowe or Tim Parsons at 410-955-6878 or paffairs@jhsph.edu.

Kenna Lowe | EurekAlert!
Further information:
http://www.jhsph.edu

More articles from Studies and Analyses:

nachricht WAKE-UP provides new treatment option for stroke patients | International study led by UKE
17.05.2018 | Universitätsklinikum Hamburg-Eppendorf

nachricht First form of therapy for childhood dementia CLN2 developed
25.04.2018 | Universitätsklinikum Hamburg-Eppendorf

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: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

Im Focus: Computer-Designed Customized Regenerative Heart Valves

Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.

Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...

Im Focus: Light-induced superconductivity under high pressure

A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.

Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Supersonic waves may help electronics beat the heat

18.05.2018 | Power and Electrical Engineering

Keeping a Close Eye on Ice Loss

18.05.2018 | Information Technology

CrowdWater: An App for Flood Research

18.05.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>