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Medical Forum / Diseases and Disorders / Asthma / November 2003

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Effects of phlebotomy

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doe - 19 Nov 2003 23:33 GMT
Seems erythrocytosis .. too many red blood cells .. and polycythemia .. are ..
the same ..

The marker used to assess polycythemia {too many red blood cells] is set by ..
cost.

The higher the marker [red blood cells] to eliminate 'false positives' ..

So .. do YOU have the iron levels of a pre-menopausal woman?

You know that .. anemic .. one .. ?

THAT is the level research has shown to be the healthiest.

---------------------------------------------------------
Thus, although individuals
at high risk for ASCVD are not Fe-overloaded, they seem to benefit,
metabolically and hemodynamically, from lowering of body Fe to levels commonly
seen in premenopausal females.

PMID: 12079862
--------------------------------------------------------

Chest 1990 Nov;98(5):1073-7
 
Exercise performance of polycythemic chronic obstructive pulmonary disease
patients. Effect of phlebotomies.

   Chetty KG, Light RW, Stansbury DW, Milne N
   
  Department of Medicine, VA Medical Center, Long Beach, CA 90822.
 
  The purpose of this study was to determine the effects of phlebotomy
  on the exercise tolerance and right and left ventricular ejection
  fraction of polycythemic patients with chronic obstructive pulmonary
  disease. Ten patients with COPD (mean FEV1 = 1.32 +/- 0.55 L) and
  polycythemia (mean Hct = 62 +/- 3 percent) were studied before and
  after their hematocrits had been reduced to approximately 50 percent.
  Post-phlebotomy the maximal oxygen consumption increased from 1.09 +/-
  0.34 L/min to 1.26 +/- 0.43 L/min (p less than 0.05) and the maximum
  workload increased from 56.5 +/- 32.6 watts to 74.5 +/- 23.4 watts (p
  less than 0.05). The increase in the exercise tolerance appeared to be
  primarily due to an increased cardiac output at Emax. There was no
  relationship between the increases in the upright exercise capacity
  and changes in the supine ejection fractions of the right or left
  ventricular either at rest or during exercise.
 
  PMID: 2225946, UI: 91030710
    _________________________________________________________________
   
  Int J Cardiol 1994 Apr;44(2):175-7
 
Effects of phlebotomy on a patient with secondary polycythemia and angina
pectoris.

   Piccirillo G, Fimognari FL, Valdivia JL, Marigliano V
   
  Cattedra di Geriatria e Gerontologia Universita, La Sapienza, Rome,
  Italy.
 
  A 67-year-old man with polycythemia, secondary to chronic obstructive
  pulmonary disease, had angina attacks at rest treated successfully by
  supplementing conventional therapy with frequent phlebotomies.
  Although phlebotomy reduces arterial oxygen content, it also decreases
  blood viscosity, improves peripheral oxygen consumption and thus
  yields the clinical benefit.
 
  PMID: 8045664, UI: 94321077
    _________________________________________________________________

 
  Respiration 1979;38(6):305-13
 
Phlebotomy improves pulmonary gas exchange in chronic mountain polycythemia.

   Cruz JC, Diaz C, Marticorena E, Hilario V
   
  There is not unanimous agreement in the literature regarding the
  effects of bleeding on pulmonary gas exchange in polycythemic
  patients. Spirometry, alveolar arterial O2 and CO2 tension
  differences, PaO2 breathing 100% oxygen and carbon monoxide-diffusing
  capacity were measured before and after 1 week of chronic phlebotomy
  in 4 chronic mountain polycythemic patients. Studies were carried out
  at 3,700 m above sea level (PB = 491 mm Hg). Before phlebotomy, 2
  patients showed abnormal spirometry and gas exchange. Only 1 patient
  had high PaCO2 and all of them showed low values of PaO2 breathing
  oxygen. Phlebotomy improved both spirometry and gas exchange.
  Improvement in arterial oxygen saturation and PaO2 could not be
  attributed to changes in alveolar ventilation, but rather to better
  distribution of VA/Qc ratios since physiological dead space decreased.
  Our results are similar to those reported in polycythemia vera
  patients. A significant correlation between the changes in PaO2 with
  phlebotomy and the control PaO2 have been found from 45 polycythemic
  patients with chronic obstructive pulmonary disease collected from the
  literature. It is concluded that excessive polycythemia worsened
  hypoxemia and that phlebotomy improved gas exchange.
 
  PMID: 538338, UI: 80146854
    _________________________________________________________________
 
  Am J Med 1983 Mar;74(3):415-20
 
Improved exercise tolerance of the polycythemic lung patient following
phlebotomy.

   Chetty KG, Brown SE, Light RW
   
  The present study evaluated the effects of therapeutic phlebotomy on
  the exercise tolerance and the maximal carbon dioxide output of
  polycythemic patients with chronic obstructive pulmonary disease.
  Fifteen maximal exercise studies were performed before and after
  phlebotomy in patients with moderate to severe chronic obstructive
  pulmonary disease (mean forced expiratory volume in one second [FEV1]=
  970 ml). After phlebotomy there were no significant differences in
  pulmonary function, blood gases, oxygen consumption, or carbon dioxide
  production at rest. However, after phlebotomy there was a significant
  increase in the exercise tolerance of the patients. The mean workload,
  the duration of exercise, the maximal oxygen consumption, the maximal
  carbon dioxide production, and the ventilation at maximal exercise all
  increased significantly. The improved exercise tolerance after
  phlebotomy appeared due to an increased cardiac output generated
  mainly through an increased stroke volume. We hypothesize that the
  increased stroke volume was due to a higher ejection fraction of the
  right ventricle secondary to a lower pulmonary artery pressure. This
  study provides further evidence that patients with chronic obstructive
  pulmonary disease who have polycythemia benefit by therapeutic
  interventions that maintain their hematocrits below 55 percent.
 
  PMID: 6402930, UI: 83149913
    _________________________________________________________________
 
  Surgery 1980 Nov;88(5):686-92
 
Increased oxygen uptake following phlebotomy and simultaneous fluid replacement
in polycythemic patients.

   Shah DM, Powers SR Jr, Bernard HR, Scovill WA, Newell JC, Stratton HH
   
  To study the isolated effects of decreased hemoglobin concentration
  without volume loss, eight patients with the diagnosis of polycythemia
  were studied following acute phlebotomy and simultaneous volume
  replacement. These patients had been treated previously by repeated
  phlebotomy, without volume replacement, to a hemoglobin level of 14.8
  +/- 0.5 gm%. Following hemodilution by additional phlebotomy and
  volume replacement, which further lowered the mean hemoglobin level to
  11.4 +/- 0.4 gm%, cardiac index increased significantly from 2.8 +/-
  0.3 to 3.5 +/- 0. 3 liter/min/m(2) (P<0.05), oxygen delivery did not
  change, but total body oxygen consumption increased significantly from
  140 +/- 16 to 180 +/- 15 ml/min/m(2) (P<0.05). Mixed venous PO2,
  systemic and pulmonary vascular resistance decreased significantly
  (P<0.05). Vascular pressure, heart rate, intrapulmonary shunt,
  arterial pH and bicarbonate, limb blood flow, limb oxygen delivery and
  limb oxygen consumption did not change. Thus, with phlebotomy and
  fluid replacement, a reduction of hemoglobin concentration to a
  subnormal level increased oxygen consumption without lowering oxygen
  delivery.
 
  PMID: 7434209, UI: 81056744
    _________________________________________________________________

Who loves ya.
Tom

Signature

Jesus Was A Vegetarian! http://jesuswasavegetarian.7h.com
Man Is A Herbivore! http://pages.ivillage.com/ironjustice/manisaherbivore
DEAD PEOPLE WALKING http://pages.ivillage.com/ironjustice/deadpeoplewalking

Colin Campbell - 19 Nov 2003 23:54 GMT
>So .. do YOU have the iron levels of a pre-menopausal woman?
>
>You know that .. anemic .. one .. ?
>
>THAT is the level research has shown to be the healthiest.

For people with COPD and polycythemia.

Nothing to do with asthma, however.

--
There can be no triumph without loss.
No victory without suffering.
No freedom without sacrifice.
doe - 20 Nov 2003 01:48 GMT
>Subject: Re: Effects of phlebotomy
>From: Colin Campbell activated_95b@earthlink.net(remove underscore)
[quoted text clipped - 10 lines]
>
>Nothing to do with asthma, however.

I tell you what .. I .. tell .. YOU .. what I believe is related to asthma ..

Dig .. ?

Don;'t be snipping my posts and trying to become some sort of moderator ..

Dig .. ?

http://asthma.about.com/library/weekly/aa112999a.htm

<<snip>>
Asthma falls into a category of diseases known as COPD, which stands for
Chronic Obstructive Pulmonary Disease
<<snip>>
------------------------------------------------------------

Seems erythrocytosis .. too many red blood cells .. and polycythemia .. are ..
the same ..

The marker used to assess polycythemia {too many red blood cells]  is set by ..
cost.

The higher the marker {red blood cells] to eliminate 'false positives' ..

So .. do YOU have the iron levels of a pre-menopausal woman?

You know that .. anemic .. one .. ?

THAT is the level research has shown to be the healthiest.

---------------------------------------------------------
Thus, although individuals
at high risk for ASCVD are not Fe-overloaded, they seem to benefit,
metabolically and hemodynamically, from lowering of body Fe to levels commonly
seen in premenopausal females.

PMID: 12079862
--------------------------------------------------------

Chest 1990 Nov;98(5):1073-7
 
Exercise performance of polycythemic chronic obstructive pulmonary disease
patients. Effect of phlebotomies.

   Chetty KG, Light RW, Stansbury DW, Milne N
   
  Department of Medicine, VA Medical Center, Long Beach, CA 90822.
 
  The purpose of this study was to determine the effects of phlebotomy
  on the exercise tolerance and right and left ventricular ejection
  fraction of polycythemic patients with chronic obstructive pulmonary
  disease. Ten patients with COPD (mean FEV1 = 1.32 +/- 0.55 L) and
  polycythemia (mean Hct = 62 +/- 3 percent) were studied before and
  after their hematocrits had been reduced to approximately 50 percent.
  Post-phlebotomy the maximal oxygen consumption increased from 1.09 +/-
  0.34 L/min to 1.26 +/- 0.43 L/min (p less than 0.05) and the maximum
  workload increased from 56.5 +/- 32.6 watts to 74.5 +/- 23.4 watts (p
  less than 0.05). The increase in the exercise tolerance appeared to be
  primarily due to an increased cardiac output at Emax. There was no
  relationship between the increases in the upright exercise capacity
  and changes in the supine ejection fractions of the right or left
  ventricular either at rest or during exercise.
 
  PMID: 2225946, UI: 91030710
    _________________________________________________________________
   
  Int J Cardiol 1994 Apr;44(2):175-7
 
Effects of phlebotomy on a patient with secondary polycythemia and angina
pectoris.

   Piccirillo G, Fimognari FL, Valdivia JL, Marigliano V
   
  Cattedra di Geriatria e Gerontologia Universita, La Sapienza, Rome,
  Italy.
 
  A 67-year-old man with polycythemia, secondary to chronic obstructive
  pulmonary disease, had angina attacks at rest treated successfully by
  supplementing conventional therapy with frequent phlebotomies.
  Although phlebotomy reduces arterial oxygen content, it also decreases
  blood viscosity, improves peripheral oxygen consumption and thus
  yields the clinical benefit.
 
  PMID: 8045664, UI: 94321077
    _________________________________________________________________

 
  Respiration 1979;38(6):305-13
 
Phlebotomy improves pulmonary gas exchange in chronic mountain polycythemia.

   Cruz JC, Diaz C, Marticorena E, Hilario V
   
  There is not unanimous agreement in the literature regarding the
  effects of bleeding on pulmonary gas exchange in polycythemic
  patients. Spirometry, alveolar arterial O2 and CO2 tension
  differences, PaO2 breathing 100% oxygen and carbon monoxide-diffusing
  capacity were measured before and after 1 week of chronic phlebotomy
  in 4 chronic mountain polycythemic patients. Studies were carried out
  at 3,700 m above sea level (PB = 491 mm Hg). Before phlebotomy, 2
  patients showed abnormal spirometry and gas exchange. Only 1 patient
  had high PaCO2 and all of them showed low values of PaO2 breathing
  oxygen. Phlebotomy improved both spirometry and gas exchange.
  Improvement in arterial oxygen saturation and PaO2 could not be
  attributed to changes in alveolar ventilation, but rather to better
  distribution of VA/Qc ratios since physiological dead space decreased.
  Our results are similar to those reported in polycythemia vera
  patients. A significant correlation between the changes in PaO2 with
  phlebotomy and the control PaO2 have been found from 45 polycythemic
  patients with chronic obstructive pulmonary disease collected from the
  literature. It is concluded that excessive polycythemia worsened
  hypoxemia and that phlebotomy improved gas exchange.
 
  PMID: 538338, UI: 80146854
    _________________________________________________________________
 
  Am J Med 1983 Mar;74(3):415-20
 
Improved exercise tolerance of the polycythemic lung patient following
phlebotomy.

   Chetty KG, Brown SE, Light RW
   
  The present study evaluated the effects of therapeutic phlebotomy on
  the exercise tolerance and the maximal carbon dioxide output of
  polycythemic patients with chronic obstructive pulmonary disease.
  Fifteen maximal exercise studies were performed before and after
  phlebotomy in patients with moderate to severe chronic obstructive
  pulmonary disease (mean forced expiratory volume in one second [FEV1]=
  970 ml). After phlebotomy there were no significant differences in
  pulmonary function, blood gases, oxygen consumption, or carbon dioxide
  production at rest. However, after phlebotomy there was a significant
  increase in the exercise tolerance of the patients. The mean workload,
  the duration of exercise, the maximal oxygen consumption, the maximal
  carbon dioxide production, and the ventilation at maximal exercise all
  increased significantly. The improved exercise tolerance after
  phlebotomy appeared due to an increased cardiac output generated
  mainly through an increased stroke volume. We hypothesize that the
  increased stroke volume was due to a higher ejection fraction of the
  right ventricle secondary to a lower pulmonary artery pressure. This
  study provides further evidence that patients with chronic obstructive
  pulmonary disease who have polycythemia benefit by therapeutic
  interventions that maintain their hematocrits below 55 percent.
 
  PMID: 6402930, UI: 83149913
    _________________________________________________________________
 
  Surgery 1980 Nov;88(5):686-92
 
Increased oxygen uptake following phlebotomy and simultaneous fluid replacement
in polycythemic patients.

   Shah DM, Powers SR Jr, Bernard HR, Scovill WA, Newell JC, Stratton HH
   
  To study the isolated effects of decreased hemoglobin concentration
  without volume loss, eight patients with the diagnosis of polycythemia
  were studied following acute phlebotomy and simultaneous volume
  replacement. These patients had been treated previously by repeated
  phlebotomy, without volume replacement, to a hemoglobin level of 14.8
  +/- 0.5 gm%. Following hemodilution by additional phlebotomy and
  volume replacement, which further lowered the mean hemoglobin level to
  11.4 +/- 0.4 gm%, cardiac index increased significantly from 2.8 +/-
  0.3 to 3.5 +/- 0. 3 liter/min/m(2) (P<0.05), oxygen delivery did not
  change, but total body oxygen consumption increased significantly from
  140 +/- 16 to 180 +/- 15 ml/min/m(2) (P<0.05). Mixed venous PO2,
  systemic and pulmonary vascular resistance decreased significantly
  (P<0.05). Vascular pressure, heart rate, intrapulmonary shunt,
  arterial pH and bicarbonate, limb blood flow, limb oxygen delivery and
  limb oxygen consumption did not change. Thus, with phlebotomy and
  fluid replacement, a reduction of hemoglobin concentration to a
  subnormal level increased oxygen consumption without lowering oxygen
  delivery.
 
  PMID: 7434209, UI: 81056744
    _________________________________________________________________

Who loves ya.
Tom

Signature

Jesus Was A Vegetarian! http://jesuswasavegetarian.7h.com
Man Is A Herbivore! http://pages.ivillage.com/ironjustice/manisaherbivore
DEAD PEOPLE WALKING http://pages.ivillage.com/ironjustice/deadpeoplewalking

ARoberts - 20 Nov 2003 06:47 GMT
> >Subject: Re: Effects of phlebotomy
> >From: Colin Campbell activated_95b@earthlink.net(remove underscore)
[quoted text clipped - 18 lines]
>
> Dig .. ?

What a mental case.
doe - 20 Nov 2003 06:56 GMT
>Subject: Re: Effects of phlebotomy
>From: "ARoberts" a-roberts1@comcast.net
[quoted text clipped - 26 lines]
>
>What a mental case.

Step up .. big guy .. so I can knock you down ..

In the meanwhile .. just .. F .. O ..

Like a good little man ..

http://asthma.about.com/library/weekly/aa112999a.htm

<<snip>>
Asthma falls into a category of diseases known as COPD, which stands for
Chronic Obstructive Pulmonary Disease
<<snip>>
------------------------------------------------------------

Seems erythrocytosis .. too many red blood cells .. and polycythemia .. are ..
the same ..

The marker used to assess polycythemia {too many red blood cells]  is set by ..
cost.

The higher the marker {red blood cells] to eliminate 'false positives' ..

So .. do YOU have the iron levels of a pre-menopausal woman?

You know that .. anemic .. one .. ?

THAT is the level research has shown to be the healthiest.

---------------------------------------------------------
Thus, although individuals
at high risk for ASCVD are not Fe-overloaded, they seem to benefit,
metabolically and hemodynamically, from lowering of body Fe to levels commonly
seen in premenopausal females.

PMID: 12079862
--------------------------------------------------------

Chest 1990 Nov;98(5):1073-7
 
Exercise performance of polycythemic chronic obstructive pulmonary disease
patients. Effect of phlebotomies.

   Chetty KG, Light RW, Stansbury DW, Milne N
   
  Department of Medicine, VA Medical Center, Long Beach, CA 90822.
 
  The purpose of this study was to determine the effects of phlebotomy
  on the exercise tolerance and right and left ventricular ejection
  fraction of polycythemic patients with chronic obstructive pulmonary
  disease. Ten patients with COPD (mean FEV1 = 1.32 +/- 0.55 L) and
  polycythemia (mean Hct = 62 +/- 3 percent) were studied before and
  after their hematocrits had been reduced to approximately 50 percent.
  Post-phlebotomy the maximal oxygen consumption increased from 1.09 +/-
  0.34 L/min to 1.26 +/- 0.43 L/min (p less than 0.05) and the maximum
  workload increased from 56.5 +/- 32.6 watts to 74.5 +/- 23.4 watts (p
  less than 0.05). The increase in the exercise tolerance appeared to be
  primarily due to an increased cardiac output at Emax. There was no
  relationship between the increases in the upright exercise capacity
  and changes in the supine ejection fractions of the right or left
  ventricular either at rest or during exercise.
 
  PMID: 2225946, UI: 91030710
    _________________________________________________________________
   
  Int J Cardiol 1994 Apr;44(2):175-7
 
Effects of phlebotomy on a patient with secondary polycythemia and angina
pectoris.

   Piccirillo G, Fimognari FL, Valdivia JL, Marigliano V
   
  Cattedra di Geriatria e Gerontologia Universita, La Sapienza, Rome,
  Italy.
 
  A 67-year-old man with polycythemia, secondary to chronic obstructive
  pulmonary disease, had angina attacks at rest treated successfully by
  supplementing conventional therapy with frequent phlebotomies.
  Although phlebotomy reduces arterial oxygen content, it also decreases
  blood viscosity, improves peripheral oxygen consumption and thus
  yields the clinical benefit.
 
  PMID: 8045664, UI: 94321077
    _________________________________________________________________

 
  Respiration 1979;38(6):305-13
 
Phlebotomy improves pulmonary gas exchange in chronic mountain polycythemia.

   Cruz JC, Diaz C, Marticorena E, Hilario V
   
  There is not unanimous agreement in the literature regarding the
  effects of bleeding on pulmonary gas exchange in polycythemic
  patients. Spirometry, alveolar arterial O2 and CO2 tension
  differences, PaO2 breathing 100% oxygen and carbon monoxide-diffusing
  capacity were measured before and after 1 week of chronic phlebotomy
  in 4 chronic mountain polycythemic patients. Studies were carried out
  at 3,700 m above sea level (PB = 491 mm Hg). Before phlebotomy, 2
  patients showed abnormal spirometry and gas exchange. Only 1 patient
  had high PaCO2 and all of them showed low values of PaO2 breathing
  oxygen. Phlebotomy improved both spirometry and gas exchange.
  Improvement in arterial oxygen saturation and PaO2 could not be
  attributed to changes in alveolar ventilation, but rather to better
  distribution of VA/Qc ratios since physiological dead space decreased.
  Our results are similar to those reported in polycythemia vera
  patients. A significant correlation between the changes in PaO2 with
  phlebotomy and the control PaO2 have been found from 45 polycythemic
  patients with chronic obstructive pulmonary disease collected from the
  literature. It is concluded that excessive polycythemia worsened
  hypoxemia and that phlebotomy improved gas exchange.
 
  PMID: 538338, UI: 80146854
    _________________________________________________________________
 
  Am J Med 1983 Mar;74(3):415-20
 
Improved exercise tolerance of the polycythemic lung patient following
phlebotomy.

   Chetty KG, Brown SE, Light RW
   
  The present study evaluated the effects of therapeutic phlebotomy on
  the exercise tolerance and the maximal carbon dioxide output of
  polycythemic patients with chronic obstructive pulmonary disease.
  Fifteen maximal exercise studies were performed before and after
  phlebotomy in patients with moderate to severe chronic obstructive
  pulmonary disease (mean forced expiratory volume in one second [FEV1]=
  970 ml). After phlebotomy there were no significant differences in
  pulmonary function, blood gases, oxygen consumption, or carbon dioxide
  production at rest. However, after phlebotomy there was a significant
  increase in the exercise tolerance of the patients. The mean workload,
  the duration of exercise, the maximal oxygen consumption, the maximal
  carbon dioxide production, and the ventilation at maximal exercise all
  increased significantly. The improved exercise tolerance after
  phlebotomy appeared due to an increased cardiac output generated
  mainly through an increased stroke volume. We hypothesize that the
  increased stroke volume was due to a higher ejection fraction of the
  right ventricle secondary to a lower pulmonary artery pressure. This
  study provides further evidence that patients with chronic obstructive
  pulmonary disease who have polycythemia benefit by therapeutic
  interventions that maintain their hematocrits below 55 percent.
 
  PMID: 6402930, UI: 83149913
    _________________________________________________________________
 
  Surgery 1980 Nov;88(5):686-92
 
Increased oxygen uptake following phlebotomy and simultaneous fluid replacement
in polycythemic patients.

   Shah DM, Powers SR Jr, Bernard HR, Scovill WA, Newell JC, Stratton HH
   
  To study the isolated effects of decreased hemoglobin concentration
  without volume loss, eight patients with the diagnosis of polycythemia
  were studied following acute phlebotomy and simultaneous volume
  replacement. These patients had been treated previously by repeated
  phlebotomy, without volume replacement, to a hemoglobin level of 14.8
  +/- 0.5 gm%. Following hemodilution by additional phlebotomy and
  volume replacement, which further lowered the mean hemoglobin level to
  11.4 +/- 0.4 gm%, cardiac index increased significantly from 2.8 +/-
  0.3 to 3.5 +/- 0. 3 liter/min/m(2) (P<0.05), oxygen delivery did not
  change, but total body oxygen consumption increased significantly from
  140 +/- 16 to 180 +/- 15 ml/min/m(2) (P<0.05). Mixed venous PO2,
  systemic and pulmonary vascular resistance decreased significantly
  (P<0.05). Vascular pressure, heart rate, intrapulmonary shunt,
  arterial pH and bicarbonate, limb blood flow, limb oxygen delivery and
  limb oxygen consumption did not change. Thus, with phlebotomy and
  fluid replacement, a reduction of hemoglobin concentration to a
  subnormal level increased oxygen consumption without lowering oxygen
  delivery.
 
  PMID: 7434209, UI: 81056744
    _________________________________________________________________

Who loves ya.
Tom

Signature

Jesus Was A Vegetarian! http://jesuswasavegetarian.7h.com
Man Is A Herbivore! http://pages.ivillage.com/ironjustice/manisaherbivore
DEAD PEOPLE WALKING http://pages.ivillage.com/ironjustice/deadpeoplewalking

ARoberts - 21 Nov 2003 06:25 GMT
> >Subject: Re: Effects of phlebotomy
> >From: "ARoberts" a-roberts1@comcast.net
[quoted text clipped - 28 lines]
>
> Step up .. big guy .. so I can knock you down ..

You don't pack the gear, mouth-man.
Bob - 20 Nov 2003 14:20 GMT
>> Dig .. ?

>> Dig .. ?

http://www.psychologyhelp.com/thnk87.htm
doe - 20 Nov 2003 14:54 GMT
Seems erythrocytosis .. too many red blood cells .. and polycythemia .. are ..
the same ..

The marker used to assess polycythemia {too many red blood cells]  is set by ..
cost.

The higher the marker {red blood cells] to eliminate 'false positives' ..

So .. do YOU have the iron levels of a pre-menopausal woman?

You know that .. anemic .. one .. ?

THAT is the level research has shown to be the healthiest.

---------------------------------------------------------
Thus, although individuals
at high risk for ASCVD are not Fe-overloaded, they seem to benefit,
metabolically and hemodynamically, from lowering of body Fe to levels commonly
seen in premenopausal females.

PMID: 12079862
--------------------------------------------------------

Chest 1990 Nov;98(5):1073-7
 
Exercise performance of polycythemic chronic obstructive pulmonary disease
patients. Effect of phlebotomies.

   Chetty KG, Light RW, Stansbury DW, Milne N
   
  Department of Medicine, VA Medical Center, Long Beach, CA 90822.
 
  The purpose of this study was to determine the effects of phlebotomy
  on the exercise tolerance and right and left ventricular ejection
  fraction of polycythemic patients with chronic obstructive pulmonary
  disease. Ten patients with COPD (mean FEV1 = 1.32 +/- 0.55 L) and
  polycythemia (mean Hct = 62 +/- 3 percent) were studied before and
  after their hematocrits had been reduced to approximately 50 percent.
  Post-phlebotomy the maximal oxygen consumption increased from 1.09 +/-
  0.34 L/min to 1.26 +/- 0.43 L/min (p less than 0.05) and the maximum
  workload increased from 56.5 +/- 32.6 watts to 74.5 +/- 23.4 watts (p
  less than 0.05). The increase in the exercise tolerance appeared to be
  primarily due to an increased cardiac output at Emax. There was no
  relationship between the increases in the upright exercise capacity
  and changes in the supine ejection fractions of the right or left
  ventricular either at rest or during exercise.
 
  PMID: 2225946, UI: 91030710
    _________________________________________________________________
     
  Respiration 1979;38(6):305-13
 
Phlebotomy improves pulmonary gas exchange in chronic mountain polycythemia.

   Cruz JC, Diaz C, Marticorena E, Hilario V
   
  There is not unanimous agreement in the literature regarding the
  effects of bleeding on pulmonary gas exchange in polycythemic
  patients. Spirometry, alveolar arterial O2 and CO2 tension
  differences, PaO2 breathing 100% oxygen and carbon monoxide-diffusing
  capacity were measured before and after 1 week of chronic phlebotomy
  in 4 chronic mountain polycythemic patients. Studies were carried out
  at 3,700 m above sea level (PB = 491 mm Hg). Before phlebotomy, 2
  patients showed abnormal spirometry and gas exchange. Only 1 patient
  had high PaCO2 and all of them showed low values of PaO2 breathing
  oxygen. Phlebotomy improved both spirometry and gas exchange.
  Improvement in arterial oxygen saturation and PaO2 could not be
  attributed to changes in alveolar ventilation, but rather to better
  distribution of VA/Qc ratios since physiological dead space decreased.
  Our results are similar to those reported in polycythemia vera
  patients. A significant correlation between the changes in PaO2 with
  phlebotomy and the control PaO2 have been found from 45 polycythemic
  patients with chronic obstructive pulmonary disease collected from the
  literature. It is concluded that excessive polycythemia worsened
  hypoxemia and that phlebotomy improved gas exchange.
 
  PMID: 538338, UI: 80146854
    _________________________________________________________________
 
  Am J Med 1983 Mar;74(3):415-20
 
Improved exercise tolerance of the polycythemic lung patient following
phlebotomy.

   Chetty KG, Brown SE, Light RW
   
  The present study evaluated the effects of therapeutic phlebotomy on
  the exercise tolerance and the maximal carbon dioxide output of
  polycythemic patients with chronic obstructive pulmonary disease.
  Fifteen maximal exercise studies were performed before and after
  phlebotomy in patients with moderate to severe chronic obstructive
  pulmonary disease (mean forced expiratory volume in one second [FEV1]=
  970 ml). After phlebotomy there were no significant differences in
  pulmonary function, blood gases, oxygen consumption, or carbon dioxide
  production at rest. However, after phlebotomy there was a significant
  increase in the exercise tolerance of the patients. The mean workload,
  the duration of exercise, the maximal oxygen consumption, the maximal
  carbon dioxide production, and the ventilation at maximal exercise all
  increased significantly. The improved exercise tolerance after
  phlebotomy appeared due to an increased cardiac output generated
  mainly through an increased stroke volume. We hypothesize that the
  increased stroke volume was due to a higher ejection fraction of the
  right ventricle secondary to a lower pulmonary artery pressure. This
  study provides further evidence that patients with chronic obstructive
  pulmonary disease who have polycythemia benefit by therapeutic
  interventions that maintain their hematocrits below 55 percent.
 
  PMID: 6402930, UI: 83149913
    _________________________________________________________________

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