How is the hematologic system affected during pregnancy?
During pregnancy, the total blood volume increases by about 1.5 liters, mainly to supply the demands of the new vascular bed and to compensate for blood loss occurring at delivery [1]. Of this, around one liter of blood is contained within the uterus and maternal blood spaces of the placenta.
What are the hematological disorders?
Hematology Disorders
- Anemia.
- Aplastic Anemia.
- Hemolytic Anemia.
- Iron Deficiency Anemia.
- Megaloblastic (Pernicious) Anemia.
- Sickle Cell Disease.
- Thalassemia. Alpha Thalassemia. Beta Thalassemia (Cooley’s Anemia)
What are the physiological changes in pregnancy?
There is a significant increase in oxygen demand during normal pregnancy. This is due to a 15% increase in the metabolic rate and a 20% increased consumption of oxygen. There is a 40–50% increase in minute ventilation, mostly due to an increase in tidal volume, rather than in the respiratory rate.
Is anemia a complication of pregnancy?
Severe anemia may have adverse effects on the mother and the fetus. Anemia with hemoglobin levels less than 6 gr/dl is associated with poor pregnancy outcome. Prematurity, spontaneous abortions, low birth weight, and fetal deaths are complications of severe maternal anemia.
What is hematologic toxicity?
Hematological toxicity is a decrease in bone marrow and blood cells, which may lead to infection, bleeding, or anemia. The National Cancer Institute (NCI) classifies five grades for blood toxicity, which refer to the severity of the adverse event (Table 1).
Which factors increase risk during pregnancy?
High blood pressure, obesity, diabetes, epilepsy, thyroid disease, heart or blood disorders, poorly controlled asthma, and infections can increase pregnancy risks. Pregnancy complications.
What should BP be in pregnancy?
The American College of Obstetricians and Gynecologists (ACOG) state that a pregnant woman’s blood pressure should also be within the healthy range of less than 120/80 mm Hg. If blood pressure readings are higher, a pregnant woman may have elevated or high blood pressure.
What is the most common hematologic complication during pregnancy?
The most frequent hematologic complication during pregnancy is anemia. A number of normal physiologic processes occur during pregnancy leading to the term “physiologic anemia of pregnancy”. The plasma volume increases (40–50%) relative to red cell mass (20–30%) and accounts for the fall in hemoglobin concentration.
What is the prevalence of haematological abnomality during pregnancy?
• The most common haematological abnomality during pregnancy : 7-15% 74% 21% 4% 1% Thrombocytopenia during pregnancy • 75% of thrombocytopenia during pregnancy are gestational thrombocytopenia, a benign phenomenon with no significant bleeding-risk for the mother or the fœtus.
What is the prevalence of thrombocytopenia in pregnancy?
Similar to the finding of anemia in pregnancy, thrombocytopenia is also common, occurring in approximately 8–10% of pregnancies, and usually secondary to physiologic changes during gestation, namely an increase in blood volume, platelet activation, and increased platelet clearance.
What is venous thromboembolism (VTE) during pregnancy?
Finally, venous thromboembolism (VTE) during pregnancy is still largely responsible for mortality during pregnancy and the diagnosis, treatment options and guidelines for prevention of VTE during pregnancy are explored. The most frequent hematologic complication during pregnancy is anemia.