adj.

貧血性の、貧血の

関: anaemia、anemia、anemic

WordNet

a deficiency of red blood cells (同)anaemia
a lack of vitality (同)anaemia
relating to anemia or suffering from anemia (同)anaemic
lacking vigor or energy; "an anemic attempt to hit the baseball" (同)anaemic

PrepTutorEJDIC

=anemic
=anemia
貧血の,貧血症の

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/03/24 00:27:23」(JST)

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Anemia, also spelled anaemia, is usually defined as a decrease in the total amount of red blood cells (RBCs) or hemoglobin in the blood.^[1]^[2] It can also be defined as a lowered ability of the blood to carry oxygen.^[3] When anemia comes on slowly, the symptoms are often vague and may include feeling tired, weakness, shortness of breath or a poor ability to exercise. Anemia that comes on quickly often has greater symptoms, which may include confusion, feeling like one is going to pass out, loss of consciousness, or increased thirst. Anemia must be significant before a person becomes noticeably pale. Additional symptoms may occur depending on the underlying cause.^[4]

There are three main types of anemia: that due to blood loss, that due to decreased red blood cell production and that due to increased red blood cell breakdown. Causes of blood loss include trauma and gastrointestinal bleeding, among others. Causes of decreased production include iron deficiency, a lack of vitamin B12, thalassemia, and a number of neoplasms of the bone marrow. Causes of increased breakdown include a number of genetic conditions such as sickle cell anemia, infections like malaria, and certain autoimmune diseases. It can also be classified based on the size of red blood cells and amount of hemoglobin in each cell. If the cells are small, it is microcytic anemia. If they are large, it is macrocytic anemia while if they are normal sized, it is normocytic anemia.^[4] Diagnosis in men is based on a hemoglobin of less than 130 to 140 g/L (13 to 14 g/dL), while in women, it must be less than 120 to 130 g/L (12 to 13 g/dL),^[4]^[5] Further testing is then required to determine the cause.^[4]

Certain groups of individuals, such as pregnant women, benefit from the use of iron pills for prevention.^[4]^[6] Dietary supplementation, without determining the specific cause, is not recommended. The use of blood transfusions is typically based on a person's signs and symptoms.^[4] In those without symptoms, they are not recommended unless hemoglobin levels are less than 60 to 80 g/L (6 to 8 g/dL).^[4]^[7] These recommendations may also apply to some people with acute bleeding.^[4] Erythropoiesis-stimulating medications are only recommended in those with severe anemia.^[7]

Anemia is the most common disorder of the blood, affecting about a quarter of the people globally.^[4] Iron-deficiency anemia affects nearly 1 billion.^[8] In 2013, anemia due to iron deficiency resulted in about 183,000 deaths – down from 213,000 deaths in 1990.^[9] It is more common in females than males,^[8] among children, during pregnancy, and in the elderly.^[4] Anemia increases costs of medical care and lowers a person's productivity through a decreased ability to work.^[5] The name is derived from Ancient Greek: ἀναιμία anaimia, meaning "lack of blood", from ἀν- an-, "not" + αἷμα haima, "blood".^[10]

1 Signs and symptoms
2 Causes
- 2.1 Impaired production
- 2.2 Increased destruction
- 2.3 Blood loss
- 2.4 Fluid overload
- 2.5 Intestinal inflammation
3 Diagnosis
- 3.1 Definitions
- 3.2 Testing
- 3.3 Red blood cell size
- 3.4 Production vs. destruction or loss
  - 3.4.1 Microcytic
  - 3.4.2 Macrocytic
  - 3.4.3 Normocytic
  - 3.4.4 Dimorphic
  - 3.4.5 Heinz body anemia
- 3.5 Hyperanemia
- 3.6 Refractory anemia
4 Treatments
- 4.1 Oral iron
- 4.2 Injectable iron
- 4.3 Blood transfusions
- 4.4 Erythropoiesis-stimulating agent
- 4.5 Hyperbaric oxygen
5 Epidemiology
6 History
7 References
8 External links

Signs and symptoms

Main symptoms that may appear in anemia^[11]

The hand of a person with severe anemia compared to one without

Anemia goes undetected in many people and symptoms can be minor. The symptoms can be related to an underlying cause or the anemia itself. Most commonly, people with anemia report feelings of weakness or tired, and sometimes poor concentration. They may also report shortness of breath on exertion. In very severe anemia, the body may compensate for the lack of oxygen-carrying capability of the blood by increasing cardiac output. The patient may have symptoms related to this, such as palpitations, angina (if pre-existing heart disease is present), intermittent claudication of the legs, and symptoms of heart failure. On examination, the signs exhibited may include pallor (pale skin, lining mucosa, conjunctiva and nail beds), but this is not a reliable sign. There may be signs of specific causes of anemia, e.g., koilonychia (in iron deficiency), jaundice (when anemia results from abnormal break down of red blood cells — in hemolytic anemia), bone deformities (found in thalassemia major) or leg ulcers (seen in sickle-cell disease). In severe anemia, there may be signs of a hyperdynamic circulation: tachycardia (a fast heart rate), bounding pulse, flow murmurs, and cardiac ventricular hypertrophy (enlargement). There may be signs of heart failure. Pica, the consumption of non-food items such as ice, but also paper, wax, or grass, and even hair or dirt, may be a symptom of iron deficiency, although it occurs often in those who have normal levels of hemoglobin. Chronic anemia may result in behavioral disturbances in children as a direct result of impaired neurological development in infants, and reduced academic performance in children of school age. Restless legs syndrome is more common in those with iron-deficiency anemia.^{[medical citation needed]}

Causes

Figure shows normal red blood cells flowing freely in a blood vessel. The inset image shows a cross-section of a normal red blood cell with normal hemoglobin.^[12]

The causes of anemia may be classified as impaired red blood cell (RBC) production, increased RBC destruction (hemolytic anemias), blood loss and fluid overload (hypervolemia). Several of these may interplay to cause anemia eventually. Indeed, the most common cause of anemia is blood loss, but this usually does not cause any lasting symptoms unless a relatively impaired RBC production develops, in turn most commonly by iron deficiency.^[13] (See Iron deficiency anemia)

Impaired production

Disturbance of proliferation and differentiation of stem cells
- Pure red cell aplasia^[14]
- Aplastic anemia^[14] affects all kinds of blood cells. Fanconi anemia is a hereditary disorder or defect featuring aplastic anemia and various other abnormalities.
- Anemia of renal failure^[14] by insufficient erythropoietin production
- Anemia of endocrine disorders^{[medical citation needed]}

Disturbance of proliferation and maturation of erythroblasts
- Pernicious anemia^[14] is a form of megaloblastic anemia due to vitamin B₁₂ deficiency dependent on impaired absorption of vitamin B₁₂. Lack of dietary B₁₂ causes non-pernicious megaloblastic anemia
- Anemia of folic acid deficiency,^[14] as with vitamin B₁₂, causes megaloblastic anemia
- Anemia of prematurity, by diminished erythropoietin response to declining hematocrit levels, combined with blood loss from laboratory testing, generally occurs in premature infants at two to six weeks of age.
- Iron deficiency anemia, resulting in deficient heme synthesis^[14]
- Thalassemias, causing deficient globin synthesis^[14]
- Congenital dyserythropoietic anemias, causing ineffective erythropoiesis
- Anemia of renal failure^[14] (also causing stem cell dysfunction)
Other mechanisms of impaired RBC production
- Myelophthisic anemia^[14] or myelophthisis is a severe type of anemia resulting from the replacement of bone marrow by other materials, such as malignant tumors or granulomas.
- Myelodysplastic syndrome^[14]
- anemia of chronic inflammation^[14]

Increased destruction

Anemias of increased red blood cell destruction are generally classified as hemolytic anemias. These are generally featuring jaundice and elevated lactate dehydrogenase levels.^{[medical citation needed]}

Intrinsic (intracorpuscular) abnormalities^[14] cause premature destruction. All of these, except paroxysmal nocturnal hemoglobinuria, are hereditary genetic disorders.^[15]
- Hereditary spherocytosis^[14] is a hereditary defect that results in defects in the RBC cell membrane, causing the erythrocytes to be sequestered and destroyed by the spleen.
- Hereditary elliptocytosis^[14] is another defect in membrane skeleton proteins.
- Abetalipoproteinemia,^[14] causing defects in membrane lipids
- Enzyme deficiencies
  - Pyruvate kinase and hexokinase deficiencies,^[14] causing defect glycolysis
  - Glucose-6-phosphate dehydrogenase deficiency and glutathione synthetase deficiency,^[14] causing increased oxidative stress
- Hemoglobinopathies
  - Sickle cell anemia^[14]
  - Hemoglobinopathies causing unstable hemoglobins^[14]
- Paroxysmal nocturnal hemoglobinuria^[14]
Extrinsic (extracorpuscular) abnormalities
- Antibody-mediated
  - Warm autoimmune hemolytic anemia is caused by autoimmune attack against red blood cells, primarily by IgG. It is the most common of the autoimmune hemolytic diseases.^[16] It can be idiopathic, that is, without any known cause, drug-associated or secondary to another disease such as systemic lupus erythematosus, or a malignancy, such as chronic lymphocytic leukemia.^[17]^[17]
  - Cold agglutinin hemolytic anemia is primarily mediated by IgM. It can be idiopathic^[18] or result from an underlying condition.
  - Rh disease,^[14] one of the causes of hemolytic disease of the newborn
  - Transfusion reaction to blood transfusions^[14]
- Mechanical trauma to red cells
  - Microangiopathic hemolytic anemias, including thrombotic thrombocytopenic purpura and disseminated intravascular coagulation^[14]
  - Infections, including malaria^[14]
  - Heart surgery^{[medical citation needed]}
  - Haemodialysis^{[medical citation needed]}

Blood loss

Anemia of prematurity from frequent blood sampling for laboratory testing, combined with insufficient RBC production
Trauma^[14] or surgery, causing acute blood loss
Gastrointestinal tract lesions,^[14] causing either acute bleeds (e.g. variceal lesions, peptic ulcers) or chronic blood loss (e.g. angiodysplasia)
Gynecologic disturbances,^[14] also generally causing chronic blood loss
From menstruation, mostly among young women or older women who have fibroids
Infection by intestinal nematodes feeding on blood, such as hookworms^[19] and the whipworm Trichuris trichiura.^[20]

The roots of the words anemia and ischemia both refer to the basic idea of "lack of blood", but anemia and ischemia are not the same thing in modern medical terminology. The word anemia used alone implies systemic effects of blood that either is too scarce (e.g., blood loss) or is dysfunctional in its oxygen-supplying ability (due to whatever type of hemoglobin or erythrocyte problem). In contrast, the word ischemia refers solely to the lack of blood (poor perfusion). Thus ischemia in a body part can cause localized anemic effects within those tissues.

Fluid overload

Fluid overload (hypervolemia) causes decreased hemoglobin concentration and apparent anemia:

General causes of hypervolemia include excessive sodium or fluid intake, sodium or water retention and fluid shift into the intravascular space.^[21]

Intestinal inflammation

Certain gastrointestinal disorders can cause anemia. The mechanisms involved are multifactorial and not limited to malabsorption but mainly related to chronic intestinal inflammation, which causes dysregulation of hepcidin that leads to decreased access of iron to the circulation.^[22]^[23]^[24]

Helicobacter pylori infection.^[25]
Gluten-related disorders: untreated celiac disease^[25]^[24] and non-celiac gluten sensitivity.^[26] Anemia can be the only manifestation of celiac disease, in absence of gastrointestinal or any other symptoms.^[27]
Inflammatory bowel disease.^[28]^[29]

Diagnosis

Peripheral blood smear microscopy of a patient with iron-deficiency anemia

Definitions

There are a number of definitions of anemia. The strict definition is an absolute decrease in red blood cell mass,^[30] however, it can also be recognized as a lowered ability of the blood to carry oxygen.^[3]

It is difficult to directly measure RBC mass,^[31] so the hematocrit (amount of RBCs) or the hemoglobin (Hb) in the blood are often used instead to indirectly estimate the value.^[32] Hemotocrit; however, is concentration dependent and is therefore not completely accurate. For example, during pregnancy a woman's RBC mass is normal but because of an increase in blood volume the hemoglobin and hematocrit are diluted and thus decreased. Another example would be bleeding where the RBC mass would decrease but the concentrations of hemoglobin and hematocrit initially remains normal until fluids shift from other areas of the body to the intravascular space.

The anemia is also classified by severity into mild (110 g/L to normal), moderate (80 g/L to 110 g/L), and severe anemia (less than 80 g/L) in adult males and adult non pregnant females.^[33] Different values are used in pregnancy and children.^[33]

Testing

Anemia is typically diagnosed on a complete blood count. Apart from reporting the number of red blood cells and the hemoglobin level, the automatic counters also measure the size of the red blood cells by flow cytometry, which is an important tool in distinguishing between the causes of anemia. Examination of a stained blood smear using a microscope can also be helpful, and it is sometimes a necessity in regions of the world where automated analysis is less accessible.^{[medical citation needed]}

In modern counters, four parameters (RBC count, hemoglobin concentration, MCV and RDW) are measured, allowing others (hematocrit, MCH and MCHC) to be calculated, and compared to values adjusted for age and sex. Some counters estimate hematocrit from direct measurements.^{[medical citation needed]}

WHO's Hemoglobin thresholds used to define anemia^[34] (1 g/dL = 0.6206 mmol/L)
Age or gender group	Hb threshold (g/dl)	Hb threshold (mmol/l)
Children (0.5–5.0 yrs)	11.0	6.8
Children (5–12 yrs)	11.5	7.1
Teens (12–15 yrs)	12.0	7.4
Women, non-pregnant (>15yrs)	12.0	7.4
Women, pregnant	11.0	6.8
Men (>15yrs)	13.0	8.1

Reticulocyte counts, and the "kinetic" approach to anemia, have become more common than in the past in the large medical centers of the United States and some other wealthy nations, in part because some automatic counters now have the capacity to include reticulocyte counts. A reticulocyte count is a quantitative measure of the bone marrow's production of new red blood cells. The reticulocyte production index is a calculation of the ratio between the level of anemia and the extent to which the reticulocyte count has risen in response. If the degree of anemia is significant, even a "normal" reticulocyte count actually may reflect an inadequate response. If an automated count is not available, a reticulocyte count can be done manually following special staining of the blood film. In manual examination, activity of the bone marrow can also be gauged qualitatively by subtle changes in the numbers and the morphology of young RBCs by examination under a microscope. Newly formed RBCs are usually slightly larger than older RBCs and show polychromasia. Even where the source of blood loss is obvious, evaluation of erythropoiesis can help assess whether the bone marrow will be able to compensate for the loss, and at what rate. When the cause is not obvious, clinicians use other tests, such as: ESR, ferritin, serum iron, transferrin, RBC folate level, serum vitamin B₁₂, hemoglobin electrophoresis, renal function tests (e.g. serum creatinine) although the tests will depend on the clinical hypothesis that is being investigated. When the diagnosis remains difficult, a bone marrow examination allows direct examination of the precursors to red cells, although is rarely used as is painful, invasive and is hence reserved for cases where severe pathology needs to be determined or excluded.^{[medical citation needed]}

Red blood cell size

In the morphological approach, anemia is classified by the size of red blood cells; this is either done automatically or on microscopic examination of a peripheral blood smear. The size is reflected in the mean corpuscular volume (MCV). If the cells are smaller than normal (under 80 fl), the anemia is said to be microcytic; if they are normal size (80–100 fl), normocytic; and if they are larger than normal (over 100 fl), the anemia is classified as macrocytic. This scheme quickly exposes some of the most common causes of anemia; for instance, a microcytic anemia is often the result of iron deficiency. In clinical workup, the MCV will be one of the first pieces of information available, so even among clinicians who consider the "kinetic" approach more useful philosophically, morphology will remain an important element of classification and diagnosis. Limitations of MCV include cases where the underlying cause is due to a combination of factors – such as iron deficiency (a cause of microcytosis) and vitamin B12 deficiency (a cause of macrocytosis) where the net result can be normocytic cells.^{[medical citation needed]}

Production vs. destruction or loss

The "kinetic" approach to anemia yields arguably the most clinically relevant classification of anemia. This classification depends on evaluation of several hematological parameters, particularly the blood reticulocyte (precursor of mature RBCs) count. This then yields the classification of defects by decreased RBC production versus increased RBC destruction and/or loss. Clinical signs of loss or destruction include abnormal peripheral blood smear with signs of hemolysis; elevated LDH suggesting cell destruction; or clinical signs of bleeding, such as guaiac-positive stool, radiographic findings, or frank bleeding.^{[medical citation needed]} The following is a simplified schematic of this approach:^{[medical citation needed]}

* For instance, sickle cell anemia with superimposed iron deficiency; chronic gastric bleeding with B₁₂ and folate deficiency; and other instances of anemia with more than one cause.
** Confirm by repeating reticulocyte count: ongoing combination of low reticulocyte production index, normal MCV and hemolysis or loss may be seen in bone marrow failure or anemia of chronic disease, with superimposed or related hemolysis or blood loss. Here is a schematic representation of how to consider anemia with MCV as the starting point:

Anemia

Reticulocyte production index shows inadequate production response to anemia.

Reticulocyte production index shows appropriate response to anemia = ongoing hemolysis or blood loss without RBC production problem.

No clinical findings consistent with hemolysis or blood loss: pure disorder of production.

Clinical findings and abnormal MCV: hemolysis or loss and chronic disorder of production*.

Clinical findings and normal MCV= acute hemolysis or loss without adequate time for bone marrow production to compensate**.

Macrocytic anemia (MCV>100)

Normocytic anemia (80<MCV<100)

Microcytic anemia (MCV<80)

Anemia

Macrocytic anemia (MCV>100)

Normocytic anemia (MCV 80–100)

Microcytic anemia (MCV<80)

High reticulocyte count

Low reticulocyte count

Other characteristics visible on the peripheral smear may provide valuable clues about a more specific diagnosis; for example, abnormal white blood cells may point to a cause in the bone marrow.

Microcytic

Microcytic anemia is primarily a result of hemoglobin synthesis failure/insufficiency, which could be caused by several etiologies:

Heme synthesis defect
- Iron deficiency anemia (microcytosis is not always present)
- Anemia of chronic disease (more commonly presenting as normocytic anemia)
Globin synthesis defect
- Alpha-, and beta-thalassemia
- HbE syndrome
- HbC syndrome
- Various other unstable hemoglobin diseases
Sideroblastic defect
- Hereditary sideroblastic anemia
- Acquired sideroblastic anemia, including lead toxicity
- Reversible sideroblastic anemia

Iron deficiency anemia is the most common type of anemia overall and it has many causes. RBCs often appear hypochromic (paler than usual) and microcytic (smaller than usual) when viewed with a microscope.

Iron deficiency anemia is due to insufficient dietary intake or absorption of iron to meet the body's needs. Infants, toddlers, and pregnant women have higher than average needs. Increased iron intake is also needed to offset blood losses due to digestive tract issues, frequent blood donations, or heavy menstrual periods.^[35] Iron is an essential part of hemoglobin, and low iron levels result in decreased incorporation of hemoglobin into red blood cells. In the United States, 12% of all women of childbearing age have iron deficiency, compared with only 2% of adult men. The incidence is as high as 20% among African American and Mexican American women.^[36] Studies have shown iron deficiency without anemia causes poor school performance and lower IQ in teenage girls, although this may be due to socioeconomic factors.^[37]^[38] Iron deficiency is the most prevalent deficiency state on a worldwide basis. It is sometimes the cause of abnormal fissuring of the angular (corner) sections of the lips (angular stomatitis).
In the United States, the most common cause of iron deficiency is bleeding or blood loss, usually from the gastrointestinal tract. Fecal occult blood testing, upper endoscopy and lower endoscopy should be performed to identify bleeding lesions. In older men and women, the chances are higher that bleeding from the gastrointestinal tract could be due to colon polyps or colorectal cancer.
Worldwide, the most common cause of iron deficiency anemia is parasitic infestation (hookworms, amebiasis, schistosomiasis and whipworms).^[39]

The Mentzer index (mean cell volume divided by the RBC count) predicts whether microcytic anemia may be due to iron deficiency or thallasemia, although it requires confirmation.^{[citation needed]}

Macrocytic

Megaloblastic anemia, the most common cause of macrocytic anemia, is due to a deficiency of either vitamin B₁₂, folic acid, or both. Deficiency in folate and/or vitamin B₁₂ can be due either to inadequate intake or insufficient absorption. Folate deficiency normally does not produce neurological symptoms, while B₁₂ deficiency does.
- Pernicious anemia is caused by a lack of intrinsic factor, which is required to absorb vitamin B₁₂ from food. A lack of intrinsic factor may arise from an autoimmune condition targeting the parietal cells (atrophic gastritis) that produce intrinsic factor or against intrinsic factor itself. These lead to poor absorption of vitamin B₁₂.
- Macrocytic anemia can also be caused by removal of the functional portion of the stomach, such as during gastric bypass surgery, leading to reduced vitamin B₁₂/folate absorption. Therefore, one must always be aware of anemia following this procedure.
Hypothyroidism
Alcoholism commonly causes a macrocytosis, although not specifically anemia. Other types of liver disease can also cause macrocytosis.
Drugs such as Methotrexate, zidovudine, and other substances may inhibit DNA replication such as heavy metals (e.g., lead)

Macrocytic anemia can be further divided into "megaloblastic anemia" or "nonmegaloblastic macrocytic anemia". The cause of megaloblastic anemia is primarily a failure of DNA synthesis with preserved RNA synthesis, which results in restricted cell division of the progenitor cells. The megaloblastic anemias often present with neutrophil hypersegmentation (six to 10 lobes). The nonmegaloblastic macrocytic anemias have different etiologies (i.e. unimpaired DNA globin synthesis,) which occur, for example, in alcoholism. In addition to the nonspecific symptoms of anemia, specific features of vitamin B₁₂ deficiency include peripheral neuropathy and subacute combined degeneration of the cord with resulting balance difficulties from posterior column spinal cord pathology.^[40] Other features may include a smooth, red tongue and glossitis. The treatment for vitamin B₁₂-deficient anemia was first devised by William Murphy, who bled dogs to make them anemic, and then fed them various substances to see what (if anything) would make them healthy again. He discovered that ingesting large amounts of liver seemed to cure the disease. George Minot and George Whipple then set about to isolate the curative substance chemically and ultimately were able to isolate the vitamin B₁₂ from the liver. All three shared the 1934 Nobel Prize in Medicine.^[41]

Normocytic

Normocytic anemia occurs when the overall hemoglobin levels are decreased, but the red blood cell size (mean corpuscular volume) remains normal. Causes include:

Acute blood loss
Anemia of chronic disease
Aplastic anemia (bone marrow failure)
Hemolytic anemia

Dimorphic

A dimorphic appearance on a peripheral blood smear occurs when there are two simultaneous populations of red blood cells, typically of different size and hemoglobin content (this last feature affecting the color of the red blood cell on a stained peripheral blood smear). For example, a person recently transfused for iron deficiency would have small, pale, iron deficient red blood cells (RBCs) and the donor RBCs of normal size and color. Similarly, a person transfused for severe folate or vitamin B12 deficiency would have two cell populations, but, in this case, the patient's RBCs would be larger and paler than the donor's RBCs. A person with sideroblastic anemia (a defect in heme synthesis, commonly caused by alcoholism, but also drugs/toxins, nutritional deficiencies, a few acquired and rare congenital diseases) can have a dimorphic smear from the sideroblastic anemia alone. Evidence for multiple causes appears with an elevated RBC distribution width (RDW), indicating a wider-than-normal range of red cell sizes, also seen in common nutritional anemia.^{[citation needed]}

Heinz body anemia

Heinz bodies form in the cytoplasm of RBCs and appear as small dark dots under the microscope. Heinz body anemia has many causes, and some forms can be drug-induced. It is triggered in cats by eating onions^[42] or acetaminophen (paracetamol). It can be triggered in dogs by ingesting onions or zinc, and in horses by ingesting dry red maple leaves.^{[citation needed]}

Hyperanemia

Hyperanemia is a severe form of anemia, in which the hematocrit is below 10%.^{[medical citation needed]}

Refractory anemia

Refractory anemia, an anemia which does not respond to treatment,^[43] is often seen secondary to myelodysplastic syndromes.^[44] Iron deficiency anemia may also be refractory as a clinical manifestation of gastrointestinal problems which disrupt iron absorption or cause occult bleeding. ^[45]

Treatments

Treatments for anemia depend on cause and severity. Vitamin supplements given orally (folic acid or vitamin B₁₂) or intramuscularly (vitamin B₁₂) will replace specific deficiencies.^{[medical citation needed]}

Oral iron

Nutritional iron deficiency is common in developing nations. An estimated two-thirds of children and of women of childbearing age in most developing nations are estimated to suffer from iron deficiency; one-third of them have the more severe form of the disorder, anemia.^[46] Iron deficiency from nutritional causes is rare in men and postmenopausal women. The diagnosis of iron deficiency mandates a search for potential sources of loss, such as gastrointestinal bleeding from ulcers or colon cancer. Mild to moderate iron-deficiency anemia is treated by oral iron supplementation with ferrous sulfate, ferrous fumarate, or ferrous gluconate. When taking iron supplements, stomach upset and/or darkening of the feces are commonly experienced. The stomach upset can be alleviated by taking the iron with food; however, this decreases the amount of iron absorbed. Vitamin C aids in the body's ability to absorb iron, so taking oral iron supplements with orange juice is of benefit.^{[citation needed]} In anemias of chronic disease, associated with chemotherapy, or associated with renal disease, some clinicians prescribe recombinant erythropoietin or epoetin alfa, to stimulate RBC production, although since there is also concurrent iron deficiency and inflammation present, parenteral iron is advised to be taken concurrently.^[47]

Injectable iron

In cases where oral iron has either proven ineffective, would be too slow (for example, pre-operatively) or where absorption is impeded (for example in cases of inflammation), parenteral iron can be used. The body can absorb up to 6 mg iron daily from the gastrointestinal tract. In many cases the patient has a deficit of over 1,000 mg of iron which would require several months to replace. This can be given concurrently with erythropoietin to ensure sufficient iron for increased rates of erythropoiesis.^{[medical citation needed]}

Blood transfusions

Blood transfusions in those without symptoms is not recommended until the hemoglobin is below 60 to 80 g/L (6 to 8 g/dL).^[4] In those with coronary artery disease who are not actively bleeding transfusions are only recommended when the hemoglobin is below 70 to 80g/L (7 to 8 g/dL).^[7] Transfusing earlier does not improve survival.^[48] Transfusions otherwise should only be undertaken in cases of cardiovascular instability.^[49]

Erythropoiesis-stimulating agent

The motive for the administration of an erythropoiesis-stimulating agent (ESA) is to maintain hemoglobin at the lowest level that both minimizes transfusions and meets the individual person's needs.^[50] They should not be used for mild or moderate anemia.^[48] They are not recommended in people with chronic kidney disease unless hemoglobin levels are less than 10 g/dL or they have symptoms of anemia. Their use should be along with parenteral iron.^[50]^[51]

Hyperbaric oxygen

Treatment of exceptional blood loss (anemia) is recognized as an indication for hyperbaric oxygen (HBO) by the Undersea and Hyperbaric Medical Society.^[52]^[53] The use of HBO is indicated when oxygen delivery to tissue is not sufficient in patients who cannot be given blood transfusions for medical or religious reasons. HBO may be used for medical reasons when threat of blood product incompatibility or concern for transmissible disease are factors.^[52] The beliefs of some religions (ex: Jehovah's Witnesses) may require they use the HBO method.^[52] A 2005 review of the use of HBO in severe anemia found all publications reported positive results.^[54]

Epidemiology

A moderate degree of iron-deficiency anemia affected approximately 610 million people worldwide or 8.8% of the population.^[8] It is slightly more common in females (9.9%) than males (7.8%).^[8] Mild iron deficiency anemia affects another 375 million.^[8]

History

Evidence of anemia goes back more than 4000 years.^[55] The word anaemia is from Greek, meaning without blood (an=without, haem =blood).

References

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^ Stedman's medical dictionary (28th ed.). Philadelphia: Lippincott Williams & Wilkins. 2006. p. Anemia. ISBN 9780781733908.
^ ^a ^b Rodak, Bernadette F. (2007). Hematology : clinical principles and applications (3rd ed.). Philadelphia: Saunders. p. 220. ISBN 9781416030065.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Janz, TG; Johnson, RL; Rubenstein, SD (Nov 2013). "Anemia in the emergency department: evaluation and treatment.". Emergency medicine practice. 15 (11): 1–15; quiz 15–6. PMID 24716235.
^ ^a ^b Smith RE, Jr (Mar 2010). "The clinical and economic burden of anemia.". The American journal of managed care. 16 Suppl Issues: S59–66. PMID 20297873.
^ Bhutta, ZA; Das, JK; Rizvi, A; Gaffey, MF; Walker, N; Horton, S; Webb, P; Lartey, A; Black, RE; Lancet Nutrition Interventions Review, Group; Maternal and Child Nutrition Study, Group (Aug 3, 2013). "Evidence-based interventions for improvement of maternal and child nutrition: what can be done and at what cost?". Lancet. 382 (9890): 452–77. doi:10.1016/S0140-6736(13)60996-4. PMID 23746776.
^ ^a ^b ^c Qaseem, A; Humphrey, LL; Fitterman, N; Starkey, M; Shekelle, P; Clinical Guidelines Committee of the American College of, Physicians (Dec 3, 2013). "Treatment of anemia in patients with heart disease: a clinical practice guideline from the American College of Physicians.". Annals of Internal Medicine. 159 (11): 770–9. doi:10.7326/0003-4819-159-11-201312030-00009. PMID 24297193.
^ ^a ^b ^c ^d ^e Vos, T; Flaxman, AD; Naghavi, M; Lozano, R; Michaud, C; Ezzati, M; Shibuya, K; Salomon, JA; et al. (Dec 15, 2012). "Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010". Lancet. 380 (9859): 2163–96. doi:10.1016/S0140-6736(12)61729-2. PMID 23245607.
^ GBD 2013 Mortality and Causes of Death, Collaborators (17 December 2014). "Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990–2013: a systematic analysis for the Global Burden of Disease Study 2013.". Lancet. 385 (9963): 117–71. doi:10.1016/S0140-6736(14)61682-2. PMC 4340604. PMID 25530442.
^ "anaemia". Dictionary.com. Retrieved 7 July 2014.
^ eMedicineHealth > anemia article Author: Saimak T. Nabili, MD, MPH. Editor: Melissa Conrad Stöppler, MD. Last Editorial Review: 12/9/2008. Retrieved on 4 April 2009
^ Information, National Center for Biotechnology; Pike, U. S. National Library of Medicine 8600 Rockville; MD, Bethesda; Usa, 20894. "Red Blood Cells – National Library of Medicine". PubMed Health. Retrieved 2016-01-31.
^ National Heart Lung and Blood Institute > What Causes Anemia? Retrieved on June 9, 2010
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa Table 12-1 in: Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson. Robbins Basic Pathology. Philadelphia: Saunders. ISBN 1-4160-2973-7. 8th edition.
^ Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson; & Mitchell, Richard N. (2007). Robbins Basic Pathology (8th ed.). Saunders Elsevier. p. 432 ISBN 978-1-4160-2973-1
^ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease. St. Louis, Mo: Elsevier Saunders. p. 637. ISBN 0-7216-0187-1.
^ ^a ^b AUTOIMMUNE HEMOLYTIC ANEMIA (AIHA) By J.L. Jenkins. The Regional Cancer Center. 2001 Archived October 7, 2009, at the Wayback Machine.
^ Berentsen S, Beiske K, Tjønnfjord GE (October 2007). "Primary chronic cold agglutinin disease: An update on pathogenesis, clinical features and therapy". Hematology. 12 (5): 361–70. doi:10.1080/10245330701445392. PMC 2409172. PMID 17891600.
^ Brooker S; Hotez PJ; Bundy DA (2008). "Hookworm-related anaemia among pregnant women: a systematic review". PLoS Neglected Tropical Diseases. 2 (9): e291. doi:10.1371/journal.pntd.0000291. PMC 2553481. PMID 18820740.
^ Gyorkos TW; Gilbert NL; Larocque R; Casapía M (2011). "Trichuris and hookworm infections associated with anaemia during pregnancy". Tropical Medicine & International Health. 16 (4): 531–7. doi:10.1111/j.1365-3156.2011.02727.x.
^ Page 62 (Fluid imbalances) in: Portable Fluids and Electrolytes (Portable Series). Hagerstwon, MD: Lippincott Williams & Wilkins. 2007. ISBN 1-58255-678-4.
^ Verma S, Cherayil BJ (2017). "Iron and inflammation - the gut reaction.". Metallomics (Review). doi:10.1039/c6mt00282j. PMID 28067386.
^ Guagnozzi D, Lucendo AJ (2014). "Anemia in inflammatory bowel disease: a neglected issue with relevant effects.". World J Gastroenterol (Review). 20 (13): 3542–51. doi:10.3748/wjg.v20.i13.3542. PMC 3974521. PMID 24707137.
^ ^a ^b Leffler DA, Green PH, Fasano A (Oct 2015). "Extraintestinal manifestations of coeliac disease". Nat Rev Gastroenterol Hepatol (Review). 12 (10): 561–71. doi:10.1038/nrgastro.2015.131. PMID 26260366. Malabsorption of nutrients is not the only cause of anaemia in coeliac disease, the chronic inflammatory process in the intestine contributes as well.
^ ^a ^b Stein J, Connor S, Virgin G, Ong DE, Pereyra L (2016). "Anemia and iron deficiency in gastrointestinal and liver conditions.". World J Gastroenterol (Review). 22 (35): 7908–25 (Table 1). doi:10.3748/wjg.v22.i35.7908. PMC 5028806. PMID 27672287.
^ Catassi C, Bai JC, Bonaz B, Bouma G, Calabrò A, Carroccio A, Castillejo G, Ciacci C, Cristofori F, Dolinsek J, Francavilla R, Elli L, Green P, Holtmeier W, Koehler P, Koletzko S, Meinhold C, Sanders D, Schumann M, Schuppan D, Ullrich R, Vécsei A, Volta U, Zevallos V, Sapone A, Fasano A (Sep 2013). "Non-Celiac Gluten sensitivity: the new frontier of gluten related disorders". Nutrients (Review). 5 (10): 3839–53. doi:10.3390/nu5103839. PMC 3820047. PMID 24077239.
^ "National Institutes of Health Consensus Development Conference Statement on Celiac Disease, June 28-30, 2004.". Gastroenterology (Review). 128 (4 Suppl 1): S1–9. 2005. doi:10.1053/j.gastro.2005.02.007. PMID 15825115.
^ Lomer MC (August 2011). "Dietary and nutritional considerations for inflammatory bowel disease". The Proceedings of the Nutrition Society (Review). 70 (3): 329–35. doi:10.1017/S0029665111000097. PMID 21450124.
^ Gerasimidis K, McGrogan P, Edwards CA (August 2011). "The aetiology and impact of malnutrition in paediatric inflammatory bowel disease". Journal of Human Nutrition and Dietetics (Review). 24 (4): 313–26. doi:10.1111/j.1365-277X.2011.01171.x. PMID 21564345.
^ Maakaron, Joseph (30 September 2016). "Anemia: Practice Essentials, Pathophysiology, Etiology". Emedicine. Retrieved 30 October 2016.
^ Polin, Richard A.; Abman, Steven H.; Rowitch, David; Benitz, William E. (2016). Fetal and Neonatal Physiology (5 ed.). Elsevier Health Sciences. p. 1085. ISBN 9780323352321.
^ Uthman, Ed (2009). Understanding Anemia. Univ. Press of Mississippi. p. 23. ISBN 9781604737011.
^ ^a ^b "Haemoglobin concentrations for the diagnosis of anaemia and assessment of severity" (PDF).
^ World Health Organization (2008). Worldwide prevalence of anaemia 1993–2005 (PDF). Geneva: World Health Organization. ISBN 978-92-4-159665-7. Archived (PDF) from the original on 12 March 2009. Retrieved 2009-03-25.
^ Recommendations to Prevent and Control Iron Deficiency in the United States MMWR 1998;47 (No. RR-3) p. 5
^ "Iron Deficiency --- United States, 1999–2000". MMWR. 51 (40): 897–899. October 11, 2002. Retrieved 21 April 2012.
^ Halterman JS, Kaczorowski JM, Aligne CA, Auinger P, Szilagyi PG (2001). "Iron Deficiency and Cognitive Achievement Among School-Aged Children and Adolescents in the United States". Pediatrics. 107 (6): 1381–1386. doi:10.1542/peds.107.6.1381. PMID 11389261.
^ Grantham-McGregor S, Ani C (2001). "Iron-Deficiency Anemia: Reexamining the Nature and Magnitude of the Public Health Problem". J Nutr. 131 (2): 649S–668S. PMID 11160596.
^ "Iron Deficiency Anaemia: Assessment, Prevention, and Control: A guide for programme managers" (PDF). Retrieved 2010-08-24.
^ eMedicine – Vitamin B-12 Associated Neurological Diseases : Article by Niranjan N Singh, MD, DM, DNB July 18, 2006
^ "Physiology or Medicine 1934 – Presentation Speech". Nobelprize.org. 1934-12-10. Archived from the original on 28 August 2010. Retrieved 2010-08-24.
^ "Onions are Toxic to Cats". Peteducation.com. Archived from the original on September 18, 2008. Retrieved 2010-08-24.
^ "MedTerms Definition: Refractory Anemia". Medterms.com. 2011-04-27. Retrieved 2011-10-31.
^ "Good Source for later". Atlasgeneticsoncology.org. Retrieved 2011-10-31.
^ Mody RJ, Brown PI, Wechsler DS (February 2003). "Refractory iron deficiency anemia as the primary clinical manifestation of celiac disease". J. Pediatr. Hematol. Oncol. 25 (2): 169–72. doi:10.1097/00043426-200302000-00018. PMID 12571473.
^ West CE (November 1996). "Strategies to control nutritional anemia". Am. J. Clin. Nutr. 64 (5): 789–90. PMID 8901803.
^ http://guidance.nice.org.uk/CG114/Guidance/pdf/English
^ ^a ^b Kansagara D, Dyer E, Englander H, Fu R, Freeman M, Kagen D (Dec 3, 2013). "Treatment of anemia in patients with heart disease: a systematic review". Annals of Internal Medicine. 159 (11): 746–57. doi:10.7326/0003-4819-159-11-201312030-00007. PMID 24297191.
^ Goddard AF, James MW, McIntyre AS, Scott BB (2011). British Society of Gastroenterology. "Guidelines for the management of iron deficiency anaemia". Gut. 60 (10): 1309–1316. doi:10.1136/gut.2010.228874. PMID 21561874.
^ ^a ^b Aapro MS, Link H (2008). "September 2007 update on EORTC guidelines and anemia management with erythropoiesis-stimulating agents". Oncologist. 13 Suppl 3 (Supplement 3): 33–6. doi:10.1634/theoncologist.13-S3-33. PMID 18458123.
^ American Society of Nephrology, "Five Things Physicians and Patients Should Question" (PDF), Choosing Wisely: an initiative of the ABIM Foundation, American Society of Nephrology, retrieved August 17, 2012
^ ^a ^b ^c Undersea and Hyperbaric Medical Society. "Exceptional Blood Loss — Anemia". Archived from the original on July 5, 2008. Retrieved 2008-05-19.
^ Hart GB, Lennon PA, Strauss MB (1987). "Hyperbaric oxygen in exceptional acute blood-loss anemia". J. Hyperbaric Med. 2 (4): 205–210. Retrieved 2008-05-19.
^ Van Meter KW (2005). "A systematic review of the application of hyperbaric oxygen in the treatment of severe anemia: an evidence-based approach". Undersea Hyperb Med. 32 (1): 61–83. PMID 15796315. Retrieved 2008-05-19.
^ Tayles, N (Sep 1996). "Anemia, genetic diseases, and malaria in prehistoric mainland Southeast Asia". American Journal of Physical Anthropology. 101 (1): 11–27. doi:10.1002/(SICI)1096-8644(199609)101:1<11::AID-AJPA2>3.0.CO;2-G. PMID 8876811.

External links

National Anemia Action Council (USA)
Anemia – Lab Tests Online

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 貧血を有する成人患者に対するアプローチ approach to the adult patient with anemia
2. 貧血を有する小児に対するアプローチ approach to the child with anemia
3. Autoimmune hemolytic anemia in children: Treatment and outcome
4. 高齢の成人における貧血 anemia in the older adult
5. 成人における溶血性貧血の診断へのアプローチ approach to the diagnosis of hemolytic anemia in the adult

English Journal

Transfusion policy after severe postpartum haemorrhage: a randomised non-inferiority trial.

Prick B1, Jansen A, Steegers E, Hop W, Essink-Bot M, Uyl-de Groot C, Akerboom B, van Alphen M, Bloemenkamp K, Boers K, Bremer H, Kwee A, van Loon A, Metz G, Papatsonis D, van der Post J, Porath M, Rijnders R, Roumen F, Scheepers H, Schippers D, Schuitemaker N, Stigter R, Woiski M, Mol B, van Rhenen Dj, Duvekot J.
BJOG : an international journal of obstetrics and gynaecology.BJOG.2014 Jul;121(8):1005-14. doi: 10.1111/1471-0528.12531. Epub 2014 Jan 10.
OBJECTIVE: To assess the effect of red blood cell (RBC) transfusion on quality of life in acutely anaemic women after postpartum haemorrhage.DESIGN: Randomised non-inferiority trial.SETTING: Thirty-seven Dutch university and general hospitals.POPULATION: Women with acute anaemia (haemoglobin 4.8-7.9
PMID 24405687

Cardiopulmonary exercise testing before and after blood transfusion: a prospective clinical study.

Wright SE1, Pearce B2, Snowden CP2, Anderson H2, Wallis JP3.
British journal of anaesthesia.Br J Anaesth.2014 Jul;113(1):91-6. doi: 10.1093/bja/aeu050. Epub 2014 Mar 28.
BACKGROUND: Cardiopulmonary exercise testing (CPET) is used to risk-stratify patients undergoing major elective surgery, with a poor exercise capacity being associated with an increased risk of complications and death. Patients with anaemia have a decreased exercise capacity and an increased risk of
PMID 24681715

Is it time to change the neurofibromatosis 1 diagnostic criteria?

Tadini G1, Milani D2, Menni F2, Pezzani L2, Sabatini C2, Esposito S3.
European journal of internal medicine.Eur J Intern Med.2014 Jul;25(6):506-510. doi: 10.1016/j.ejim.2014.04.004. Epub 2014 Apr 29.
Neurofibromatosis 1 is a complex inherited neurocutaneous disease that is often difficult to diagnose early because of its age-dependent presentation. The diagnosis is also extremely difficult to communicate to patients and their parents because of the disease's clinical variability, unpredictable e
PMID 24784952

Japanese Journal

Phase II study of three dose levels of continuous erythropoietin receptor activator (C. E. R. A.) in anaemic patients with aggressive non-Hodgkin's lymphoma receiving combination chemotherapy

OSTERBORG A
Br J Hematol. 136, 736-744, 2007
NAID 30025513965

EORTC guidelines for the use of erythropoietic proteins in anaemic patients with cancer : 2006 update

BOKEMEYER C
Eur J Cancer 43, 258-270, 2007
NAID 30003898735

Prevention of Gamma Radiation Induced Anaemia in Mice by Diltiazem

Nunia Vandana,Goyal P. K.
Journal of radiation research 45(1), 11-17, 2004-03
… These results confirm that DTZ has the potency to alter anaemic condition favorably through the protection of bone marrow stem cells, and subsequently it maintains the higher number of pro- and normoblasts in bone marrow, RBC counts, hemoglobin (Hb), hematocrit (Hct) percentage, and erythropoietin level in blood and the lower myeloid/erythroid ratio in bone marrow. …
NAID 110004040986

Related Pictures

★リンクテーブル★

リンク元	「anemic」「anaemia」「貧血性」

「anemic」

Anemia
Synonyms	anaemia
	Human blood from a case of iron-deficiency anemia
Pronunciation	/əˈniːmiə/;
Classification and external resources
Specialty	Hematology
ICD-10	D50-D64
ICD-9-CM	280-285
DiseasesDB	663
MedlinePlus	000560
eMedicine	med/132 emerg/808 emerg/734
MeSH	D000740
	[edit on Wikidata]

　　[★]

adj.

貧血性の、貧血の

関: anaemia、anaemic、anemia

「anaemia」

　　[★]

n.

貧血

関: anaemic、anemia、anemic

「貧血性」

　　[★]

英: anemic、anaemic
関: 貧血

[1] "What Is Anemia? – NHLBI, NIH". www.nhlbi.nih.gov. Retrieved 2016-01-31.

[2] Stedman's medical dictionary (28th ed.). Philadelphia: Lippincott Williams & Wilkins. 2006. p. Anemia. ISBN 9780781733908.

[Ber2007-3] Rodak, Bernadette F. (2007). Hematology : clinical principles and applications (3rd ed.). Philadelphia: Saunders. p. 220. ISBN 9781416030065.

[EBM2013-4] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Janz, TG; Johnson, RL; Rubenstein, SD (Nov 2013). "Anemia in the emergency department: evaluation and treatment.". Emergency medicine practice. 15 (11): 1–15; quiz 15–6. PMID 24716235.

[Smith2010-5] Smith RE, Jr (Mar 2010). "The clinical and economic burden of anemia.". The American journal of managed care. 16 Suppl Issues: S59–66. PMID 20297873.

[6] Bhutta, ZA; Das, JK; Rizvi, A; Gaffey, MF; Walker, N; Horton, S; Webb, P; Lartey, A; Black, RE; Lancet Nutrition Interventions Review, Group; Maternal and Child Nutrition Study, Group (Aug 3, 2013). "Evidence-based interventions for improvement of maternal and child nutrition: what can be done and at what cost?". Lancet. 382 (9890): 452–77. doi:10.1016/S0140-6736(13)60996-4. PMID 23746776.

[Amir2013-7] Qaseem, A; Humphrey, LL; Fitterman, N; Starkey, M; Shekelle, P; Clinical Guidelines Committee of the American College of, Physicians (Dec 3, 2013). "Treatment of anemia in patients with heart disease: a clinical practice guideline from the American College of Physicians.". Annals of Internal Medicine. 159 (11): 770–9. doi:10.7326/0003-4819-159-11-201312030-00009. PMID 24297193.

[LancetEpi2012-8] Vos, T; Flaxman, AD; Naghavi, M; Lozano, R; Michaud, C; Ezzati, M; Shibuya, K; Salomon, JA; et al. (Dec 15, 2012). "Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010". Lancet. 380 (9859): 2163–96. doi:10.1016/S0140-6736(12)61729-2. PMID 23245607.

[9] GBD 2013 Mortality and Causes of Death, Collaborators (17 December 2014). "Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990–2013: a systematic analysis for the Global Burden of Disease Study 2013.". Lancet. 385 (9963): 117–71. doi:10.1016/S0140-6736(14)61682-2. PMC 4340604. PMID 25530442.

[10] "anaemia". Dictionary.com. Retrieved 7 July 2014.

[11] MedicineHealth > anemia article Author: Saimak T. Nabili, MD, MPH. Editor: Melissa Conrad Stöppler, MD. Last Editorial Review: 12/9/2008. Retrieved on 4 April 2009

[12] Information, National Center for Biotechnology; Pike, U. S. National Library of Medicine 8600 Rockville; MD, Bethesda; Usa, 20894. "Red Blood Cells – National Library of Medicine". PubMed Health. Retrieved 2016-01-31.

[13] National Heart Lung and Blood Institute > What Causes Anemia? Retrieved on June 9, 2010

[Robbins12-1-14] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa Table 12-1 in: Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson. Robbins Basic Pathology. Philadelphia: Saunders. ISBN 1-4160-2973-7. 8th edition.

[Robbins432-15] Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson; & Mitchell, Richard N. (2007). Robbins Basic Pathology (8th ed.). Saunders Elsevier. p. 432 ISBN 978-1-4160-2973-1

[isbn0-7216-0187-1-16] Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease. St. Louis, Mo: Elsevier Saunders. p. 637. ISBN 0-7216-0187-1.

[Jenkins-17] AUTOIMMUNE HEMOLYTIC ANEMIA (AIHA) By J.L. Jenkins. The Regional Cancer Center. 2001 Archived October 7, 2009, at the Wayback Machine.

[pmid17891600-18] Berentsen S, Beiske K, Tjønnfjord GE (October 2007). "Primary chronic cold agglutinin disease: An update on pathogenesis, clinical features and therapy". Hematology. 12 (5): 361–70. doi:10.1080/10245330701445392. PMC 2409172. PMID 17891600.

[19] Brooker S; Hotez PJ; Bundy DA (2008). "Hookworm-related anaemia among pregnant women: a systematic review". PLoS Neglected Tropical Diseases. 2 (9): e291. doi:10.1371/journal.pntd.0000291. PMC 2553481. PMID 18820740.

[20] Gyorkos TW; Gilbert NL; Larocque R; Casapía M (2011). "Trichuris and hookworm infections associated with anaemia during pregnancy". Tropical Medicine & International Health. 16 (4): 531–7. doi:10.1111/j.1365-3156.2011.02727.x.

[Hagerstwon-21] Page 62 (Fluid imbalances) in: Portable Fluids and Electrolytes (Portable Series). Hagerstwon, MD: Lippincott Williams & Wilkins. 2007. ISBN 1-58255-678-4.

[VermaCherayil2017-22] Verma S, Cherayil BJ (2017). "Iron and inflammation - the gut reaction.". Metallomics (Review). doi:10.1039/c6mt00282j. PMID 28067386.

[GuagnozziLucendo2014-23] Guagnozzi D, Lucendo AJ (2014). "Anemia in inflammatory bowel disease: a neglected issue with relevant effects.". World J Gastroenterol (Review). 20 (13): 3542–51. doi:10.3748/wjg.v20.i13.3542. PMC 3974521. PMID 24707137.

[LefflerGreen2015-24] Leffler DA, Green PH, Fasano A (Oct 2015). "Extraintestinal manifestations of coeliac disease". Nat Rev Gastroenterol Hepatol (Review). 12 (10): 561–71. doi:10.1038/nrgastro.2015.131. PMID 26260366. Malabsorption of nutrients is not the only cause of anaemia in coeliac disease, the chronic inflammatory process in the intestine contributes as well.

[SteinConnor2016-25] Stein J, Connor S, Virgin G, Ong DE, Pereyra L (2016). "Anemia and iron deficiency in gastrointestinal and liver conditions.". World J Gastroenterol (Review). 22 (35): 7908–25 (Table 1). doi:10.3748/wjg.v22.i35.7908. PMC 5028806. PMID 27672287.

[CatassiBai2013-26] Catassi C, Bai JC, Bonaz B, Bouma G, Calabrò A, Carroccio A, Castillejo G, Ciacci C, Cristofori F, Dolinsek J, Francavilla R, Elli L, Green P, Holtmeier W, Koehler P, Koletzko S, Meinhold C, Sanders D, Schumann M, Schuppan D, Ullrich R, Vécsei A, Volta U, Zevallos V, Sapone A, Fasano A (Sep 2013). "Non-Celiac Gluten sensitivity: the new frontier of gluten related disorders". Nutrients (Review). 5 (10): 3839–53. doi:10.3390/nu5103839. PMC 3820047. PMID 24077239.

[NIHConsensus2004-27] "National Institutes of Health Consensus Development Conference Statement on Celiac Disease, June 28-30, 2004.". Gastroenterology (Review). 128 (4 Suppl 1): S1–9. 2005. doi:10.1053/j.gastro.2005.02.007. PMID 15825115.

[Lomer2011-28] Lomer MC (August 2011). "Dietary and nutritional considerations for inflammatory bowel disease". The Proceedings of the Nutrition Society (Review). 70 (3): 329–35. doi:10.1017/S0029665111000097. PMID 21450124.

[Gerasimidis2011-29] Gerasimidis K, McGrogan P, Edwards CA (August 2011). "The aetiology and impact of malnutrition in paediatric inflammatory bowel disease". Journal of Human Nutrition and Dietetics (Review). 24 (4): 313–26. doi:10.1111/j.1365-277X.2011.01171.x. PMID 21564345.

[30] Maakaron, Joseph (30 September 2016). "Anemia: Practice Essentials, Pathophysiology, Etiology". Emedicine. Retrieved 30 October 2016.

[31] Polin, Richard A.; Abman, Steven H.; Rowitch, David; Benitz, William E. (2016). Fetal and Neonatal Physiology (5 ed.). Elsevier Health Sciences. p. 1085. ISBN 9780323352321.

[32] Uthman, Ed (2009). Understanding Anemia. Univ. Press of Mississippi. p. 23. ISBN 9781604737011.

[WHODefSeverity-33] "Haemoglobin concentrations for the diagnosis of anaemia and assessment of severity" (PDF).

[34] World Health Organization (2008). Worldwide prevalence of anaemia 1993–2005 (PDF). Geneva: World Health Organization. ISBN 978-92-4-159665-7. Archived (PDF) from the original on 12 March 2009. Retrieved 2009-03-25.

[irond-35] Recommendations to Prevent and Control Iron Deficiency in the United States MMWR 1998;47 (No. RR-3) p. 5

[36] "Iron Deficiency --- United States, 1999–2000". MMWR. 51 (40): 897–899. October 11, 2002. Retrieved 21 April 2012.

[halterman1-37] Halterman JS, Kaczorowski JM, Aligne CA, Auinger P, Szilagyi PG (2001). "Iron Deficiency and Cognitive Achievement Among School-Aged Children and Adolescents in the United States". Pediatrics. 107 (6): 1381–1386. doi:10.1542/peds.107.6.1381. PMID 11389261.

[mcgregor1-38] Grantham-McGregor S, Ani C (2001). "Iron-Deficiency Anemia: Reexamining the Nature and Magnitude of the Public Health Problem". J Nutr. 131 (2): 649S–668S. PMID 11160596.

[39] "Iron Deficiency Anaemia: Assessment, Prevention, and Control: A guide for programme managers" (PDF). Retrieved 2010-08-24.

[40] Medicine – Vitamin B-12 Associated Neurological Diseases : Article by Niranjan N Singh, MD, DM, DNB July 18, 2006

[41] "Physiology or Medicine 1934 – Presentation Speech". Nobelprize.org. 1934-12-10. Archived from the original on 28 August 2010. Retrieved 2010-08-24.

[42] "Onions are Toxic to Cats". Peteducation.com. Archived from the original on September 18, 2008. Retrieved 2010-08-24.

[43] "MedTerms Definition: Refractory Anemia". Medterms.com. 2011-04-27. Retrieved 2011-10-31.

[44] "Good Source for later". Atlasgeneticsoncology.org. Retrieved 2011-10-31.

[pmid12571473-45] Mody RJ, Brown PI, Wechsler DS (February 2003). "Refractory iron deficiency anemia as the primary clinical manifestation of celiac disease". J. Pediatr. Hematol. Oncol. 25 (2): 169–72. doi:10.1097/00043426-200302000-00018. PMID 12571473.

[pmid8901803-46] West CE (November 1996). "Strategies to control nutritional anemia". Am. J. Clin. Nutr. 64 (5): 789–90. PMID 8901803.

[47] ttp://guidance.nice.org.uk/CG114/Guidance/pdf/English

[Kan2013-48] Kansagara D, Dyer E, Englander H, Fu R, Freeman M, Kagen D (Dec 3, 2013). "Treatment of anemia in patients with heart disease: a systematic review". Annals of Internal Medicine. 159 (11): 746–57. doi:10.7326/0003-4819-159-11-201312030-00007. PMID 24297191.

[49] Goddard AF, James MW, McIntyre AS, Scott BB (2011). British Society of Gastroenterology. "Guidelines for the management of iron deficiency anaemia". Gut. 60 (10): 1309–1316. doi:10.1136/gut.2010.228874. PMID 21561874.

[2007anemiaESA-50] Aapro MS, Link H (2008). "September 2007 update on EORTC guidelines and anemia management with erythropoiesis-stimulating agents". Oncologist. 13 Suppl 3 (Supplement 3): 33–6. doi:10.1634/theoncologist.13-S3-33. PMID 18458123.

[ASNfive-51] American Society of Nephrology, "Five Things Physicians and Patients Should Question" (PDF), Choosing Wisely: an initiative of the ABIM Foundation, American Society of Nephrology, retrieved August 17, 2012

[uhms-52] Undersea and Hyperbaric Medical Society. "Exceptional Blood Loss — Anemia". Archived from the original on July 5, 2008. Retrieved 2008-05-19.

[53] Hart GB, Lennon PA, Strauss MB (1987). "Hyperbaric oxygen in exceptional acute blood-loss anemia". J. Hyperbaric Med. 2 (4): 205–210. Retrieved 2008-05-19.

[54] Van Meter KW (2005). "A systematic review of the application of hyperbaric oxygen in the treatment of severe anemia: an evidence-based approach". Undersea Hyperb Med. 32 (1): 61–83. PMID 15796315. Retrieved 2008-05-19.

[55] Tayles, N (Sep 1996). "Anemia, genetic diseases, and malaria in prehistoric mainland Southeast Asia". American Journal of Physical Anthropology. 101 (1): 11–27. doi:10.1002/(SICI)1096-8644(199609)101:1<11::AID-AJPA2>3.0.CO;2-G. PMID 8876811.

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anaemic