ironjustice

They've decided to NOT raise the cabin pressure ..
Not enough evidence ..
They aren't counting the db's .. just the cash ..

Reminds me of the water heaters which had the 'defect' .. they decided
it was "cheaper" to pay off the explosions and screaming deaths than
to recall.

"8000 ft has been accepted as the maximum operational cabin pressure
altitude in the airline industry."

"On the basis of our findings, we conclude that maintaining a cabin
altitude of 6,000 feet or lower (equivalent to a barometric pressure
of 609 mm Hg or higher) on long-duration commercial flights will
reduce the discomfort among passengers,"

Cabin cruising altitudes for regular transport aircraft. [Journal
Article]
Aviat Space Environ Med 2008 Apr; 79(4):433-9.

The adverse physiological effects of flight, caused by ascent to
altitude and its associated reduction in barometric pressure, have
been known since the first manned balloon flights in the 19th
century.
It soon became apparent that the way to protect the occupant of an
aircraft from the effects of ascent to altitude was to enclose either
the individual, or the cabin, in a sealed or pressurized environment.
Of primary concern in commercial airline transport operations is the
selection of a suitable cabin pressurization schedule that assures
adequate oxygen partial pressures for all intended occupants.
For the past several decades, 8000 ft has been accepted as the maximum
operational cabin pressure altitude in the airline industry.
More recent research findings on the physiological and psycho-
physiological effects of mild hypoxia have provided cause for renewed
discussion of the "acceptability" of a maximum cabin cruise altitude
of 8000 ft; however, we did not find sufficient scientific data to
recommend a change in the cabin altitude of transport category
aircraft.
The Aerospace Medical Association (AsMA) should support further
research to evaluate the safety, performance and comfort of occupants
at altitudes between 5000 and 10,000 ft.

Aviation, space, and environmental medicine [Aviat Space Environ Med]
--------------------------------------------------------------------------------

Long flights cause altitude sickness
6 Jul 2007, 0002 hrs IST,REUTERS


BOSTON: Feeling a little achy, light headed or short of breath on a
long plane flight? A new study suggests you might be suffering from a
mild form of altitude sickness.

Until now, such symptoms had been attributed to jet lag, dehydration,
air contamination or being stuck in a cramped seat for hours.

Researchers report that true altitude sickness - with its nausea,
vomiting and sleep disturbances - was no more likely in volunteers in
simulated airplane cabins where the pressure was equivalent to 8,000
feet above sea level than it was when the pressure was closer to sea
level.

But after three hours of exposure to cabin pressures equivalent to
7,000 to 8,000 feet, the simulated fliers were more likely than
others to report backaches, headaches, shortness of breath, light-
headedness
and impaired coordination.

Women and younger people were the most likely to experience symptoms.
"On the basis of our findings, we conclude that maintaining a cabin
altitude of 6,000 feet or lower (equivalent to a barometric pressure
of 609 mm Hg or higher) on long-duration commercial flights will

-----------------------------------

Briefs: Flying may pose risk to sleep apnea sufferers
By Times Staff, Wires
In print: Friday, May 23, 2008

Flying may pose risk to sleep apnea sufferers

People with severe obstructive sleep apnea (OSA) taking airline
flights may have a greater risk from cardiac stress than healthy
people, according to new research.
The scientists compared oxygen levels and breathing by simulating
flight conditions.
"It is normal for the rate of breathing to increase when air pressure
falls,'' said Leigh Seccombe, an Australian scientist.
"We found that (for those with OSA), their breathing intensity
increases at about the same rate as it does in healthy people." But
the physiological stress and demand for oxygen was increased in people
with OSA.
"The work they do to run the core range of body functions (heart,
lungs, brain) is much greater under cabin conditions.''

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ironjustice

People are still under the assumption it is the cramped seating
conditions which causes thrombosis ..

It's not ..

Vol. 119, No. 3, 2008
--------------------------------------------------------------------------------

Review

Altitude and Coagulation Activation: Does Going High Provoke
Thrombosis?
J.J. van Veena, M. Makrisb

aLeicester Haemophilia Comprehensive Care Centre and Haemostasis and
Thrombosis Unit, Leicester , and
bSheffield Haemophilia and Thrombosis Centre, Sheffield, UK


Address of Corresponding Author

Acta Haematol 2008;119:156-157 (DOI: 10.1159/000128045)


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ironjustice

Predisposed to thrombosis through .. too many red blood cell /
erythrocytosis .. polycythemia ..

"The patient with cerebral venous thrombosis described by Fujimaki et
al3 was severely polycythemic."

http://tinyurl.com/6q7t8c


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ironjustice

"Symptoms usually begin 6-24 hours after arrival"

http://www.rnceus.com/altitude/sickness.html


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ironjustice

http://tinyurl.com/4u4mp3

"The coalition recommends these measures for all passengers on flights
of six or more hours: "


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ironjustice

Sleep apnea and erythrocytosis coexist and erythrocytosis / sleep
apnea is a sign of "don't fly if you have sleep apnea" because of
thrombosis.

http://tinyurl.com/yclscm

Thrombosis is very common in lupus .
Erythrocytosis / polycythemia causes thrombosis.
Erythrocytosis "doesn't exist in lupus" even though all the drugs
'they' sell you and all the signs and symptoms say it DOES .. .

They say they have no idea what causes the thrombosis
problems in lupus BUT you know they sell you drugs which
are KNOWN to control **erythrocytosis** .and you KNOW
erythrocytosis causes thrombosis .
You KNOW treatments which treat erythrocytosis lead to CURE in disease
which closely resembles lupus. IE: thalassemia and sickle / aplastic
anemia.

You know lupus manifests at altitude and altitude causes
erythrocytosis.

But .. erythrocytosis .. isn't .. involved IN .. lupus .. ?

Need a bridge .. ?


Another sign of .. erythrocytosis .. is .. increased blood
viscosity .. since increased red blood cell production /
erythrocytosis leads to increased blood viscosity .. thicker
more 'syrup' like blood.

Sooo .. does increased viscosity APPEAR .. in .. lupus .. ?

Yep ..

http://serials.cib.unibo.it/cgi-ser/start/it/spogli/df-s.tcl?-
prog_art=3D429= 3343&language=3DITALIANO&view=3Darticoli

Catalogo Articoli (Spogli Riviste) OPAC HELP

Titolo: Elevated blood viscosity in systemic lupus
erythematosus

Autore: Rosenson, RS; Shott, S; Katz, R; Indirizzi:
Northwestern Univ, Sch Med, Prevent Cardiol Ctr, Chicago, IL
60611 USA Northwestern Univ Chicago IL USA 60611 Cardiol Ctr,
Chicago, IL 60611 USA Rush Presbyterian St Lukes Med Ctr,
Biostat Unit, Dept Neurosurg, Chicago,IL 60612 USA Rush
Presbyterian St Lukes Med Ctr Chicago IL USA 60612 cago,IL
60612 USA Rush Presbyterian St Lukes Med Ctr, Dept Med,
Rheumatol Sect, Chicago, IL 60612 USA Rush Presbyterian St
Lukes Med Ctr Chicago IL USA 60612 ago, IL 60612 USA

Titolo Testata: SEMINARS IN ARTHRITIS AND RHEUMATISM
fascicolo: 1, volume: 31, anno: 2001, pagine: 52 - 57 SICI:
0049-0172(200108)31:1<52:EBVISL>2.0.ZU;2-L Fonte: ISI Lingua:
ENG Soggetto: EMISSION COMPUTED-TOMOGRAPHY; DISEASE
RISK-FACTORS; CARDIOVASCULAR MANIFESTATIONS; ARTERY;
LIPOPROTEIN; ANTIBODIES; COHORT; INDEX; MEN; Keywords:
systemic lupus erythematosus; blood viscosity; rheology;
cardiovascular risk; Tipo do***ento: Review Natura: Periodico
Settore Disciplinare: Clinical Medicine Citazioni: 34

Recensione: Indirizzi per estratti: Indirizzo: Rosenson, RS
Northwestern Univ, Sch Med, Prevent Cardiol Ctr, 250 E Super
St,Wesley 728, Chicago, IL 60611 USA Northwestern Univ 250 E
Super St,Wesley 728 Chicago IL USA 60611

--------------------------------------------------------------
--------------=
-----

Abstract
Objectives:
It has been proposed that elevated blood viscosity contributes
to atherothrombotic and thromboembolic processes.
We evaluated whether there is increased blood
viscosity in systemic lupus erythematosus (SLE) that might
contribute to cardiovascular complications and reduced tissue
perfusion.
Methods:
Blood viscosity profiles were evaluated inSLE patients to determine
whether rheologic disturbancescontribute to the cardiovascular risk
profile.
Blood viscosity profiles were evaluated in 27 patients with SLE and 46
age-
and gender-matched controls.
Blood viscosity was measured at 37 degrees C and shear rates of 1
s(-1) and 100 s(-1), then corrected to the average hematocrit of the
SLE patients.
Results.
Corrected blood viscosity values were higher in SLE patients than in
controls at 100 s(-1) (P =3D .002).
Positive correlations were found between the Systemic Lupus
Damage Index for SLE, which quantifies damage to12 organ
systems and fibrinogen (rho =3D .39; P =3D .042) and
plasma viscosity (rho=3D .38, P =3D .049).
Conclusions:
Our data indicate that = blood viscosityvalues at a standard
hematocrit are elevated in SLE patients.
Further investigations are needed to evaluate whether the
increased blood viscosity values in SLE patients contribute to
cardiovascular complications and tissue ischemia.
Clinical
Relevance: Because blood viscosity values correlate with the
clinical severity of SLE, blood viscosity may contribute to
the cardiovascular complications and reduced tissue perfusion
in SLE patients.
Copyright (C) 2001 by W.B. Saunders Company.
-----------------------------
CIB Centro Inter-Bibliotecario, Universit=E0 di Bologna,
Catalogo delle riviste ed altri periodici Do***ento generato
il 26/03/07 alle ore 15:23:15
International Collaborating Clinics/American College of
Rheumatology
---------------------------------

This is mere .. coincidence of course .. phlebotomy /
venesection / bloodletting .. leads to **resolution** of ..
erythematous lesions on the center of the face.

Phlebotomy / venesection / bloodletting .. is the PREFERRED ..
first treatment .. OF .. erythrocytosis ..

Coincidence .. of .. course ..

Rosacea associated with polycythemia vera: Skin lesions
improved with phlebotomy
ADSuhr,Ki-Beom; Yoon, Ji-Seong; Lee, Jeung-Hoon; Park, Jang-Kyu 1994
Annals of Dermatology 6(1): 98-101

We report a case of rosacea in a 65 year old female with a 14
year history of polycythemia vera.
The patient suffered fromseveral constitutional symptoms and
signs suggestive ofpolycythemia vera.
Six years prior to our initial examination,erythematous lesions
were first noted on the center of the
face.
These lesions exhibited periodic improvement and
exacerbation without specific treatment.
Histopathologicexamination of the facial lesions showed
nodular infiltrationof lymphocytes and histiocytes and dilation
of blood vessels.
On the basis of laboratory examination, the patient was
diagnosed as polycythemia vera.
The patient has receivedmetronidazole, tetracycline, and topical
steroids to controlrosacea- like facial lesions.
The treatment results were notsignificant.
However, phlebotomy markedly improved the skin
lesion.
To our knowledge, there are no reports describing the
clinical course of rosacea lesions following the treatment
with phlebotomy.
--------------------


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taka

So should we be practicing bloodletting before long haul flights? The
physicians are recommending taking aspirin before. You may say
aspirin binds iron but its more important function is COX inhibition.
It's all about arachidonic acid overload.

Taka

ironjustice

Sooo .. as opposed to the information I've provided as to the
**proximate** cause OF the thrombosis .. you .. 'say' .. it's all
about arachidonic acid .. ?

Need a cite or two for that I think.

Arachidonic acid causes hyperviscosity .. ??

Show JUST that one .. just one cite which shows arachidonic acid
causes .. hyperviscosity ..

Warfarin against .. arachidonic acid / hyperviscosity ..


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manky badger

On May 28, 5:56 pm, Taka <taka0...@gmail.com> wrote:It's all about
arachidonic acid overload <<

Sooo .. as opposed to the information I've provided as to the
**proximate** cause OF the thrombosis .. you .. 'say' .. it's all
about arachidonic acid .. ?

Need a cite or two for that I think.

Arachidonic acid causes hyperviscosity .. ??

Show JUST that one .. just one cite which shows arachidonic acid
causes .. hyperviscosity ..

Warfarin against .. arachidonic acid / hyperviscosity ..
--------------------------------------------------------------------------------------------------------

(Sorry, I *know* I shouldn't feed the troll)

Tommy - you demonstrate your ignorance yet again.
I shall add arachidonic acid to the list which includes (among other gems):

"disease which closely resembles lupus. IE: thalassemia and sickle /
aplastic anemia"
sequestration of minerals
the anti-gravity effects of iron reduction on red cells.

Why on earth do you post this stuff?
Again your theories seem perfectly plausible to anyone who knows absolutely
nothing about the subject.
(This is your cue to swear without the vowels and call me childish names)

ironjustice

You are on this thread for a reason .. ?

You are AGAIN .. doctoring .. information ..

Eh ..

Is that the extent of your .. abilities .. ?

Doctoring medical studies .. doctoring posts .. and .. attempting to
belittle .. ?

Is it .. "I am a scientist with credentials" ..

Ehhh ..

Dweeb ..

Always will be a dweeb ..

Now unless you have something to say about .. aplastic anemia and the
risk of dying while flying .. maybe you should crawl back under
whatever shtpiles guys like you crawl out .. from .. under ..


Who loves ya.
Tom


Jesus Was A Vegetarian!
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Man Is A Herbivore!
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DEAD PEOPLE WALKING
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