the secret danger of electrically heated seats

THE SECRET DANGER OF
ELECTRICALLY HEATED
SEATS
Art Johnson
By Art Johnson, OTLA Guardian
By Mardel Chinburg
O
n Christmas Day, 2005, Jane and
her husband John drove their Cadillac Eldorado from Edmond, Okla., to
Lake Texhoma to share Christmas dinner
with her family. They returned home that
evening. The round trip took five hours.
Jane is paraplegic from an injury she
sustained 17 years ago. She has no sensation in her lower body and legs. Despite
those disabilities, she remained an active,
engaging and brave individual. After
receiving rehabilitation services to regain
her mobility through the use of a wheelchair and a car with hand controls, Jane
completed her undergraduate degree and
enrolled in Florida State University Col-
Mardel Chinburg
lege of Law, graduating cum laude in
1996. She is licensed to practice law in
Florida, Colorado and Oklahoma.
In 2005, Jane had a successful law
practice in Oklahoma. In addition to her
work, she had many hobbies, including
horses, water skiing, bungee jumping and
sky diving. Her passion was riding a fine
mare trained to show in Western Pleasure
riding competitions. Training and riding
provided Jane endless enjoyment until
that Christmas Day in 2005.
It was cold driving to Texhoma. Although Jane had never used the electric
seat heater in the Eldorado, she turned
it on with the casual thought that the
warmth might help control spasticity.
When she returned home, and she was
preparing for bed, Jane performed her
daily skin check. She was stunned to see
two large blisters, one on each buttock.
These were third degree burns.
Jane had never imagined it possible
for anyone to be burned by the seat of a
modern automobile. In contrast, General Motors did know it was possible.
Jane was not the first person General
Motors’ seats had burned. Despite that
knowledge, GM had made no recall nor
provided any warning of that danger.
Any third degree burn is serious, but
a third degree burn on the buttock of a
paraplegic is an additional layer of disability. Healthy skin on the buttocks is
critical to mobility, recreation and activities of daily living. Extensive medical
care is usually required, including repeated surgeries and complete bed rest
on a specialized mattress, often with the
patient lying face down to protect the
burned area. After the wounds finally
close many months later, the scar tissue
that has replaced those three layers of lost
skin is thin and fragile compared to
normal skin. Even after the healing process is done, the victim must exercise
great care to prevent reinjury while making transfers from a wheelchair to a toilet,
vehicle, chair or bed. More frequent
pressure releases are necessary to prevent
the development of pressure ulcers.
Such a serious burn injury is unlikely
to happen to a person with normal sensation. That person will simply turn the
See Heated Seats p 21
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Heated Seats
Continued from p 19
heater off when it gets too hot. However,
the sensory deprived person will not
know he or she is being burned until the
skin sloughs off when the person removes
clothing or the wound is seen during a
daily skin check.
Jane received excellent care from
surgeons and burn experts. She was hospitalized several times and required repeated surgeries. For seven months she
had to keep all weight off her buttocks.
Most of the time she was required to lie
in bed or stand in an upright device. Her
medical bills were over $150,000. Despite the fine care Jane received, she is
now limited in the time she can sit and
is greatly limited in her ability to participate in the recreational activities she
loves.
Jane’s case was the sixth that we
handled for a paraplegic who suffered
burns from
an electrically heated automobile seat.
Since her
case, we
have handled and
resolved 10
additional
cases, a total of 16 to
d a t e . We
are currently representing and prosecuting claims for four more paraplegics, each
of whom sustained third degree burns in
a General Motors vehicle.
As in every defective product case,
preserving the evidence (the vehicle) is
critical. A qualified engineer should test
the seat’s temperatures as early as possible. Medical literature confirms that 120
degrees Fahrenheit can cause third degree
burns on human skin in 10 minutes.1
Lower temperatures will also cause third
degree burns when the exposure duration
is sufficient.2 The International Organi-
zation for Standardization (ISO)3 and the
American Society for Testing and Materials (ASTM)4 offer guidance on accepted burn threshold temperatures and
contact with human skin. In the cases we
have handled, the seat temperatures
ranged from 120 to 160 degrees Fahrenheit.
Paralyzed individuals are at a higher
risk of thermal skin burns due to physiologic changes. Paralysis alters circulation
below the spinal cord injury level with
resulting impaired circulation in the buttocks. A person with normal circulation
benefits from having a circulatory system
that will help carry heat away from the
location of an overheating seat, giving
some additional protection. Other factors that increase the risk for the sensory
deprived are skin density and tissue
perfusion.
Reviewing the client’s past medical
records and consulting with the medical
providers to establish causation that the
skin wound originated as a burn is key
to successful prosecution. Victims and
their medical care team will typically be
unfamiliar with seat heater burns, which
may lead to medical histories that require
careful investigation and analysis.
Over the past three decades, nearly
600,000 vehicles have been voluntarily
recalled due to defective seat heaters. The
National Highway Traffic Safety Administration (NHTSA) conducted fire investigations involving seat heaters in Chrysler, Volkswagen, Mercedes-Benz and
Volvo vehicles. GM has, thus far, failed
to recall their vehicles with defective seat
heaters or to provide suitable warning of
the risk to those with loss of sensation.
Vehicle seat heaters have become
standard accessories in an estimated 30%
of all vehicles in the U.S. Major manufacturers routinely sell their vehicles to
sensory impaired customers, often assisting them with the purchase and installation of hand controls. Despite the hundreds of complaints regarding overheating seat heaters sent to NHTSA, there
are still no safety standards that apply to
heated seats.
Seat heater burns are preventable and
the consequences of these third degree
burns are devastating to the victim. Jane’s
words are representative of all of our
clients’ comments:
“This injury put me back where I was
when I was first paralyzed...I’m completely dependent on others for my
personal care, I’ve lost my physical conditioning after lying on my belly for six
months, and I can’t afford to risk injury
to my buttocks so I’ve had to sell my
beloved horse because I can’t ride her any
more.”
Art Johnson founded the firm that is now
Johnson Johnson and Schaller to specialize
in litigation with emphasis on accidents
and defective products that cause serious
personal injury or economic loss. He contributes to the OTLA Guardians of Civil
Justice at the Guardians Club level. The
firm is located at 975 Oak St Ste 1050,
Eugene OR 97401. Johnson can be reached
at 541-484-2434 or [email protected]
com.
Mardel Chinburg has been a trial assistant
at Johnson Johnson and Schaller since
1984. She recently obtained her Master of
Public Health degree from the University
of North Carolina at Chapel Hill. Johnson
Johnson and Schaller is located at 975 Oak
St Ste 1050, Eugene OR 97401. Chinburg
can be reached at 541-484-2434 or
[email protected]
1
2
3
4
Maguifla, P., MD, Palmieri, T., MD, FACS &
Greenhalgh, D., MD, FACS. (2003). “Car Seat
Heaters: A Potential Hazard for Burns.” Journal
of Burn Care & Rehab., 24:315-316.
Suzuki, T., Hirayama, T., Aihara, K. & Hirohata, Y. (1991). “Experimental Studies of
Moderate Temperature Burns.” Burns,
17(6):443-451.
ASTM Committee C16 on Thermal Insulation.
(2003). “Standard Guide for Heated System
Surface Conditions that Produce Contact Burn
Injuries.” ASTM International.
International Organization for Standardization.
(2006). “Ergonomics of the Thermal Environment–Methods for the Assessment of Human
Responses to Contact with Surfaces.” ISO
13732-1.
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