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Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
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Red blood cells  (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia,...
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Factors Affecting Erythropoiesis01:24

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Overview of Hematopoiesis01:20

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Hematopoiesis, or blood cell production, is a vital biological process that begins early in embryonic development and continues throughout life. This process generates the various types of cells found in blood, including red blood cells, white blood cells, and platelets from hematopoietic stem cells (HSCs).
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Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
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Author Spotlight: Deciphering Coagulation Disorders in Traumatic Brain Injury Patients
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Polycythemia Vera: Rapid Evidence Review.

Steven Fox1, Leslie Griffin1, Dominique Robinson Harris1

  • 1University of Tennessee College of Medicine, Chattanooga, TN, USA.

American Family Physician
|June 1, 2021
PubMed
Summary
This summary is machine-generated.

Polycythemia vera is a myeloproliferative neoplasm causing high red blood cell counts, leading to clots and fatigue. Treatment includes aspirin, phlebotomy, and cytoreductive therapy to manage symptoms and prolong survival.

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Area of Science:

  • Hematology
  • Oncology
  • Genetics

Background:

  • Polycythemia vera (PV) is a stem-cell-derived myeloproliferative neoplasm.
  • PV is characterized by erythrocytosis, leukocytosis, and thrombocytosis, significantly impacting mortality and morbidity.
  • Complications include thrombosis, fatigue, pruritus, and transformation to leukemia or myelofibrosis.

Purpose of the Study:

  • To summarize the diagnostic criteria and management of Polycythemia vera.
  • To highlight the impact of PV on patient outcomes.
  • To discuss current and potential therapeutic strategies.

Main Methods:

  • Review of diagnostic criteria from the World Health Organization.
  • Analysis of treatment strategies, including first-line and second-line therapies.
  • Identification of modifiable risk factors for thrombosis.

Main Results:

  • Diagnostic criteria include elevated hemoglobin/hematocrit, abnormal bone marrow biopsy, and JAK2 mutation (approx. 98%).
  • Subnormal erythropoietin levels help differentiate PV from secondary erythrocytosis.
  • First-line treatments (aspirin, phlebotomy) improve quality of life and survival; cytoreductive therapy may be added.

Conclusions:

  • PV management focuses on reducing thrombotic events and improving quality of life.
  • Smoking cessation and managing cardiometabolic disease are crucial for reducing thrombosis risk.
  • Currently, no cure exists for PV, nor treatments to prevent transformation to leukemia/myelofibrosis.