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Related Concept Videos

Disorders of Leukocytes01:27

Disorders of Leukocytes

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Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
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Disorders of Erythrocytes01:27

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Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
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Differentiation of Common Myeloid Progenitor Cells01:15

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Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
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Disorders of Hemostasis01:24

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Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
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Production of Formed Elements01:34

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Hemangioblasts are multipotent stem cells originating from the mesoderm. They give rise to hematopoietic stem cells (HSCs), which undergo hematopoiesis to produce all the formed elements of blood. This process is regulated by a complex network of hematopoietic growth factors, including transcription factors, growth factors, and cytokines. These factors stimulate the HSCs to divide and differentiate, though some HSCs remain undifferentiated to maintain a self-renewing pool.
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Lineage Commitment01:21

Lineage Commitment

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Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome
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Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome

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Myeloproliferative disorders.

Brian Meier1, John H Burton2

  • 1Department of Emergency Medicine, Carilion Clinic, 525 Janette Avenue Southwest, Roanoke, VA 24016, USA.

Emergency Medicine Clinics of North America
|July 26, 2014
PubMed
Summary
This summary is machine-generated.

Emergency providers often diagnose myeloproliferative disorders (MPNs) through lab abnormalities or patient complications. Prompt recognition and aggressive treatment of hyperviscosity and thrombotic events are crucial for saving lives.

Keywords:
Chronic myelogenous leukemiaEssential thrombocythemiaMyeloproliferative disordersPolycythemia veraPrimary myelofibrosis

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Area of Science:

  • Hematology
  • Emergency Medicine
  • Internal Medicine

Background:

  • Myeloproliferative neoplasms (MPNs) present diagnostic challenges in emergency settings.
  • MPNs can manifest as unexpected laboratory findings or acute complications in diagnosed patients.

Purpose of the Study:

  • To outline emergent conditions associated with myeloproliferative neoplasms.
  • To emphasize the importance of early recognition and management of MPN-related emergencies.

Main Methods:

  • Review of clinical presentations of MPNs in emergency departments.
  • Discussion of emergent complications including hyperviscosity and thrombosis.

Main Results:

  • Hyperviscosity syndromes require immediate hydration, transfusion, and cytoreduction.
  • Thrombotic complications are a significant source of morbidity and mortality in MPN patients.

Conclusions:

  • Aggressive management of hyperviscosity is critical for patient survival.
  • A high index of suspicion for thrombotic events is essential for patients with known MPNs.