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SonoSite, Inc. (Nasdaq: SONO), the world leader in hand-carried
ultrasound, today announced that Xtreme Everest 2007 (http://www.xtreme-everest.co.uk)
has selected the MicroMaxx® hand-carried
ultrasound system to perform cerebral perfusion studies for its research
on human performance at extreme altitudes. The goal of the project is to
place a medical and scientific team on the summit of Mount Everest in
the spring of 2007 to study the effects of oxygen deprivation on the
human body.
Coordinated by the Centre for Aviation, Space and Extreme (CASE)
Environment Medicine in London, the Everest ascent is the centrepiece of
an extensive research program studying human performance at extreme
altitude aimed at improving the care of the critically ill. The study --
the largest human biology study ever performed at high altitude -- will
consist of examining more than 200 volunteers as they climb
progressively higher into the thin atmosphere. More detailed research
will be performed on a group of scientists planning to climb to the
summit of Everest.
“One of the major areas of interest is
cerebral perfusion, the supply of blood to the brain, since we know that
this can be seriously affected at high altitude,”
said Dr. Chris Imray, Consultant Vascular Surgeon and Hon Reader in
Surgery Warwick Medical School and member of the training team. “We
were looking for a robust, portable transcranial Doppler system that
would be simple to use and reliable in an extreme environment. I used
the MicroMaxx on the rehearsal climb to the summit of Cho Oyu in Tibet
this autumn and it performed beautifully. We performed scans up to 6,400
metres (21,000 ft.) on battery power and in temperatures as low as -20°C;
the system was operable within seconds of booting up and the images
produced were very high quality,” he said.
The expedition team, all of whom work in anaesthesia, intensive care,
vascular surgery or remote medicine, hope to show parallels between the
human body pushed to its limits during critical illness and changes that
occur in extreme environments. The low oxygen levels in the blood of
high altitude climbers is similar to those in critically ill patients on
breathing machines with severe heart and lung conditions, “blue
babies” and cystic fibrosis sufferers. The
expedition team believes that by examining the volunteers and scientists
as they push themselves to the limit of human performance that they will
better understand what is happening to patients fighting for their lives
in the intensive care unit.
“Low oxygen levels (hypoxia) in the blood and
cells are a critical factor in Intensive Care patients and the summit of
Everest is by extraordinary coincidence exactly at the limit of human
tolerance for hypoxia,” said Dr. Mike Grocott,
Director and Expedition leader and Consultant in Intensive Care. “For
many years, doctors and scientists believed that it would be impossible
to climb Everest without supplementary oxygen. This all changed in 1978
when Reinhold Messner proved them wrong by reaching the summit without
supplemental oxygen. Since then more than 100 individuals have
accomplished the same feat. It is clear that were the mountain even a
few meters higher this would be impossible. The summit of Everest is a
wonderful natural laboratory for the study of the effects of critical
hypoxia in humans.”
MicroMaxx System Helps to Save a Climber’s
Life
On the 26th of August the Xtreme Everest
embarked on a rehearsal expedition to Cho Oyu, which, at 8,201 metres
(26,000 ft.), is the sixth highest mountain in the world. A short
distance to the west of Mt Everest, it straddles the border between
Tibet and Nepal. The aim of the training expedition was to test all the
medical equipment in a combined cold and altitude environment similar to
what will be encountered in the main expedition in Spring 2007.
At one stage of the expedition the MicroMaxx system was unexpectedly
used to examine an emergency casualty, when a North American mountaineer
from another climbing party was suspected of having a stroke. The Xtreme
Everest team rapidly converted their DRASH (Deployable Rapid Assembly
Shelter) laboratory into a high dependency unit, allowing Dr. Imray to
examine the climber using the MicroMaxx system with the P-17 probe.
Dr. Imray explains, “We used the SonoSite
equipment to transmit sound waves through the thin part of his skull and
look for blood flow to the brain. We were able to image his brain and
see that on one side blood flow was absolutely normal and on the other
side there was virtually no flow at all.”
Having confirmed that the mountaineer had indeed suffered a stroke, the
team stabilized his condition and made immediate arrangements to
evacuate the casualty, who was rapidly transported to a more
comprehensive medical facility in Kathmandu. The patient has since
returned to North America and is progressing well in a rehabilitation
unit.
The MicroMaxx System
The laptop-sized, durable MicroMaxx system represents the technology
crossover point between hand-carried ultrasound and larger,
high-performance, cart-based systems. SonoSite products and technology
deliver proven reliability and durability in conventional medical
settings as well as some far more challenging environments, such as
supporting rescue operations following natural disasters. Extensive
quality controls such as "drop testing" ensure that SonoSite products
continue to set the industry standard for both reliability and
durability.
The MicroMaxx system is backed by a five-year warranty, an industry
first, far exceeding warranties available on competing products. The
technology also allows for the system to go from “off”
to scanning within seconds. This is vitally important in many medical
situations where seconds really do count - whether getting crucial
diagnostic information in an emergency or making the best use of time in
a hectic daily schedule.
About CASE
CASE (www.ucl.ac.uk/case/) has
offices and human performance laboratories located within the Institute
for Human Health Performance at the University College London archway
campus, in the UK. The group conducts research, teaches courses and
offers advice in the areas of space, aviation, high altitude, remote,
dive and hyperbaric medicine and is comprised of a group of clinicians
and scientists with specialist interests and training in the medicine
and physiology of extreme environments. Central to its work is the
concept that the study of human systems stretched to breaking point in
extreme environments can increase the understanding of critically ill
patients.
About SonoSite
SonoSite, Inc. (www.sonosite.com),
the innovator and world leader in hand-carried ultrasound, is
headquartered near Seattle and is represented by eight subsidiaries and
a global distribution network in over 75 countries. SonoSite’s
small, lightweight systems are expanding the use of ultrasound across
the clinical spectrum by cost-effectively bringing high performance
ultrasound to the point of patient care. The company employs over 500
people worldwide.
SonoSite, Inc. (Nasdaq: SONO), the world leader in hand-carried
ultrasound, today announced that Xtreme Everest 2007
(http://www.xtreme-everest.co.uk) has selected the MicroMaxx(R)
hand-carried ultrasound system to perform cerebral perfusion studies
for its research on human performance at extreme altitudes. The goal
of the project is to place a medical and scientific team on the summit
of Mount Everest in the spring of 2007 to study the effects of oxygen
deprivation on the human body.
Coordinated by the Centre for Aviation, Space and Extreme (CASE)
Environment Medicine in London, the Everest ascent is the centrepiece
of an extensive research program studying human performance at extreme
altitude aimed at improving the care of the critically ill. The study
-- the largest human biology study ever performed at high altitude --
will consist of examining more than 200 volunteers as they climb
progressively higher into the thin atmosphere. More detailed research
will be performed on a group of scientists planning to climb to the
summit of Everest.
"One of the major areas of interest is cerebral perfusion, the
supply of blood to the brain, since we know that this can be seriously
affected at high altitude," said Dr. Chris Imray, Consultant Vascular
Surgeon and Hon Reader in Surgery Warwick Medical School and member of
the training team. "We were looking for a robust, portable
transcranial Doppler system that would be simple to use and reliable
in an extreme environment. I used the MicroMaxx on the rehearsal climb
to the summit of Cho Oyu in Tibet this autumn and it performed
beautifully. We performed scans up to 6,400 metres (21,000 ft.) on
battery power and in temperatures as low as -20(degrees)C; the system
was operable within seconds of booting up and the images produced were
very high quality," he said.
The expedition team, all of whom work in anaesthesia, intensive
care, vascular surgery or remote medicine, hope to show parallels
between the human body pushed to its limits during critical illness
and changes that occur in extreme environments. The low oxygen levels
in the blood of high altitude climbers is similar to those in
critically ill patients on breathing machines with severe heart and
lung conditions, "blue babies" and cystic fibrosis sufferers. The
expedition team believes that by examining the volunteers and
scientists as they push themselves to the limit of human performance
that they will better understand what is happening to patients
fighting for their lives in the intensive care unit.
"Low oxygen levels (hypoxia) in the blood and cells are a critical
factor in Intensive Care patients and the summit of Everest is by
extraordinary coincidence exactly at the limit of human tolerance for
hypoxia," said Dr. Mike Grocott, Director and Expedition leader and
Consultant in Intensive Care. "For many years, doctors and scientists
believed that it would be impossible to climb Everest without
supplementary oxygen. This all changed in 1978 when Reinhold Messner
proved them wrong by reaching the summit without supplemental oxygen.
Since then more than 100 individuals have accomplished the same feat.
It is clear that were the mountain even a few meters higher this would
be impossible. The summit of Everest is a wonderful natural laboratory
for the study of the effects of critical hypoxia in humans."
MicroMaxx System Helps to Save a Climber's Life
On the 26th of August the Xtreme Everest embarked on a rehearsal
expedition to Cho Oyu, which, at 8,201 metres (26,000 ft.), is the
sixth highest mountain in the world. A short distance to the west of
Mt Everest, it straddles the border between Tibet and Nepal. The aim
of the training expedition was to test all the medical equipment in a
combined cold and altitude environment similar to what will be
encountered in the main expedition in Spring 2007.
At one stage of the expedition the MicroMaxx system was
unexpectedly used to examine an emergency casualty, when a North
American mountaineer from another climbing party was suspected of
having a stroke. The Xtreme Everest team rapidly converted their DRASH
(Deployable Rapid Assembly Shelter) laboratory into a high dependency
unit, allowing Dr. Imray to examine the climber using the MicroMaxx
system with the P-17 probe.
Dr. Imray explains, "We used the SonoSite equipment to transmit
sound waves through the thin part of his skull and look for blood flow
to the brain. We were able to image his brain and see that on one side
blood flow was absolutely normal and on the other side there was
virtually no flow at all."
Having confirmed that the mountaineer had indeed suffered a
stroke, the team stabilized his condition and made immediate
arrangements to evacuate the casualty, who was rapidly transported to
a more comprehensive medical facility in Kathmandu. The patient has
since returned to North America and is progressing well in a
rehabilitation unit.
The MicroMaxx System
The laptop-sized, durable MicroMaxx system represents the
technology crossover point between hand-carried ultrasound and larger,
high-performance, cart-based systems. SonoSite products and technology
deliver proven reliability and durability in conventional medical
settings as well as some far more challenging environments, such as
supporting rescue operations following natural disasters. Extensive
quality controls such as "drop testing" ensure that SonoSite products
continue to set the industry standard for both reliability and
durability.
The MicroMaxx system is backed by a five-year warranty, an
industry first, far exceeding warranties available on competing
products. The technology also allows for the system to go from "off"
to scanning within seconds. This is vitally important in many medical
situations where seconds really do count - whether getting crucial
diagnostic information in an emergency or making the best use of time
in a hectic daily schedule.
About CASE
CASE (www.ucl.ac.uk/case/) has offices and human performance
laboratories located within the Institute for Human Health Performance
at the University College London archway campus, in the UK. The group
conducts research, teaches courses and offers advice in the areas of
space, aviation, high altitude, remote, dive and hyperbaric medicine
and is comprised of a group of clinicians and scientists with
specialist interests and training in the medicine and physiology of
extreme environments. Central to its work is the concept that the
study of human systems stretched to breaking point in extreme
environments can increase the understanding of critically ill
patients.
About SonoSite
SonoSite, Inc. (www.sonosite.com), the innovator and world leader
in hand-carried ultrasound, is headquartered near Seattle and is
represented by eight subsidiaries and a global distribution network in
over 75 countries. SonoSite's small, lightweight systems are expanding
the use of ultrasound across the clinical spectrum by cost-effectively
bringing high performance ultrasound to the point of patient care. The
company employs over 500 people worldwide.