Pediatric Hematology is the branch of medicine concerned with the diagnosis, treatment, and follow-up of blood and blood-forming organ diseases in children from infancy to adolescence. This field encompasses many important health problems such as anemia, leukemia, lymphoma, bleeding and clotting disorders, and bone marrow diseases.
What is Pediatric Hematology?
Pediatric hematology is the branch of medicine concerned with the diagnosis, evaluation, and follow-up of blood disorders and bone marrow problems in children from the neonatal period to adolescence.
This field examines changes that occur in red blood cells, white blood cells, and platelets—the essential components of blood. Because blood plays vital roles in the body, from transporting oxygen and supporting the immune system to stopping bleeding, imbalances in these cells can directly impact a child's health.
Pediatric hematology goes beyond simply evaluating blood test results; it offers a holistic approach considering the child's age, developmental stage, and clinical findings. Because normal blood values vary with age in children, evaluation requires pediatric expertise.
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What Diseases Does Pediatric Hematology Treat?
Pediatric Hematology is a branch of medicine that deals with the diagnosis and follow-up of blood diseases, blood cell disorders, and bone marrow-related conditions seen in childhood. This department comprehensively evaluates hematological diseases that arise from various causes. The diseases treated by pediatric hematology include:
Iron deficiency anemia: A type of anemia that develops as a result of insufficient iron in the body and manifests with symptoms such as weakness and paleness.
- Vitamin deficiency anemias: This group of anemias, seen in cases of B12 and folic acid deficiency, affects the production of blood cells.
- Thalassemia (Mediterranean anemia): A chronic blood disorder caused by a genetically inherited disorder resulting from impaired hemoglobin production.
- Sickle cell anemia: A hereditary disease in which the shape of red blood cells is altered, affecting circulation.
- Aplastic anemia: A serious blood disorder that occurs when the bone marrow does not produce enough blood cells.
- Leukemia: A type of blood cancer that develops when abnormal white blood cells multiply uncontrollably in the bone marrow.
- Lymphoma: A type of cancer that affects the lymphatic system and causes enlargement of the lymph nodes.
- White blood cell disorders: These are diseases that affect the immune system as a result of numerical or functional abnormalities in white blood cells.
- Thrombocytopenia (low platelet count): A condition characterized by a decrease in blood platelets, resulting in easy bruising and a tendency to bleed.
- Bleeding and clotting disorders: This is a group of diseases associated with blood not clotting normally or clotting excessively.
- Hemophilia: A genetic disorder that causes prolonged bleeding due to a deficiency in clotting factors.
- Von Willebrand disease: A bleeding disorder caused by a deficiency in a protein that plays a role in the clotting process.
- Leukopenia: A condition in which the immune system is weakened due to a decrease in white blood cells.
- Polycythemia: A disease that causes the blood to thicken due to an increase in red blood cells.
- Bone marrow failure syndromes: A group of diseases characterized by abnormalities in the production of blood cells.
- Solid tumors: These are tumors that develop in tissues outside the blood system but may require hematological evaluation and follow-up.
Which departments does Pediatric Hematology collaborate with?
Pediatric Hematology is a specialized field that collaborates with many different medical units in the diagnosis, treatment, and follow-up of blood disorders in children. This is because the evaluation of hematological diseases is not limited to blood tests alone; a multidisciplinary approach is crucial for clarifying the diagnosis, planning the treatment process, and maintaining the child's overall health.
Pediatrics
Pediatric hematology works closely with general pediatrics to address a child's growth and development, overall health status, and initial assessment findings.
Pediatric Oncology
In cases involving blood disorders or those considered within the scope of childhood cancers, the diagnosis, treatment, and follow-up process is carried out by pediatric oncology.
Pediatric Immunology and Allergy Diseases
In cases of immune system-related blood cell disorders, conditions that predispose to infection, and certain specific diseases, pediatric hematology works in coordination with this department.
Medical Genetics
Medical genetic support is crucial in the investigation of hereditary blood disorders, the evaluation of genetically transmitted conditions, and further family-related examinations.
Pediatric Infectious Diseases
Children who experience frequent infections, have suppressed immune systems, or have problems related to white blood cells may be monitored in collaboration with the infectious diseases department.
Biochemistry Laboratory
In the evaluation of blood values, vitamin levels, enzymes, and other biochemical parameters, the biochemistry laboratory is one of the essential support units of pediatric hematology.
Microbiology Laboratory
In patients suspected of having an infection, those with compromised immune systems, or those requiring further investigation, microbiological tests contribute to the diagnostic process.
Pathology
When bone marrow, lymph node, or other tissue samples need to be examined, the pathology department plays a crucial role in reaching a definitive diagnosis.
Radiology
With radiology, internal organs, lymph nodes, and the extent of disease can be evaluated using methods such as ultrasound, X-ray, magnetic resonance imaging, and tomography.
Nuclear Medicine
Nuclear medicine techniques can be used in the evaluation of some hematological diseases and tumors, in investigating the spread of the disease, or in planning treatment.
Pediatric Surgery
In situations requiring biopsies, vascular procedures, or surgical evaluation, pediatric hematology may collaborate with pediatric surgery.
Anesthesiology and Reanimation
The anesthesia team may be involved to ensure the child is evaluated safely and comfortably during bone marrow aspiration, biopsy, or other invasive procedures.
Blood Bank and Transfusion Center
When blood and blood products are needed, coordination with this unit is ensured for proper planning, safe transfusion procedures, and close monitoring.
Pediatric Neurology
The effects of blood disorders on the nervous system, neurological findings, or conditions that may develop during certain treatment processes can be evaluated jointly with pediatric neurology.
Pediatric Cardiology
In monitoring the effects of some hematological diseases on the heart and circulatory system, or in pre-treatment evaluations, support from pediatric cardiology may be necessary.
Pediatric Nephrology
In cases where blood disorders affect kidney function or there are other kidney-related problems, follow-up with a pediatric nephrologist may be planned.
Pediatric Gastroenterology
When nutritional deficiencies, absorption problems, or digestive system-related causes contribute to blood disorders, collaboration with pediatric gastroenterology is necessary.
Psychology and Child Psychiatry
In illnesses requiring long-term follow-up, psychological support can be important for emotionally supporting the child and family, and for strengthening compliance with the treatment process.
Nutrition and Dietetics
Dietitian support is an integral part of pediatric hematology, especially in cases of anemia, vitamin deficiencies, and when nutritional support is needed during treatment.
What tests are performed in the Pediatric Hematology Department?
Tests performed in the Pediatric Hematology department are diagnostic methods used to evaluate blood diseases, blood cell disorders, clotting problems, and bone marrow-related conditions in children. The tests performed include:
- Complete blood count (hemogram): Provides information about the overall blood count by measuring the number of red blood cells, white blood cells, and platelets.
- Peripheral smear: Allows for the examination of blood cells under a microscope, evaluating their shape, structure, and any potential abnormalities.
- Reticulocyte count: Helps indicate the bone marrow's capacity to produce new red blood cells.
- Iron tests: These tests measure values such as iron, ferritin, and iron-binding capacity to investigate iron deficiency or disorders of iron metabolism.
- Vitamin B12 and folate tests: Used to assess vitamin deficiencies that can lead to anemia.
- Coagulation tests (PT, aPTT, INR): These tests examine the blood clotting process, helping to investigate bleeding and clotting disorders.
- Fibrinogen test: Measures the level of fibrinogen, which plays a role in blood clotting, and provides information about bleeding tendencies or clotting problems.
- D-Dimer test: This may be ordered to evaluate findings related to blood clot formation and breakdown in the body.
- Platelet function tests: These tests help to understand not only the number of platelets but also how well they are performing their functions.
- Hemoglobin electrophoresis: Used in the investigation of hereditary hemoglobin disorders such as thalassemia and sickle cell anemia.
- Direct Coombs test: This test contributes to the diagnosis of immune-related blood disorders by evaluating antibodies that develop against red blood cells.
- Indirect Coombs test: This test is used to detect antibodies circulating in the blood and is helpful in some hematological conditions.
- Bone marrow aspiration: This involves taking a sample of bone marrow to examine the blood cell production process and any potential abnormalities.
- Bone marrow biopsy: This is an advanced examination method used to provide a more detailed structural evaluation of bone marrow tissue.
- Flow cytometry: Used to evaluate leukemia and similar diseases by analyzing the characteristics of cells in detail.
- Genetic tests are used to investigate hereditary blood disorders, chromosomal abnormalities, or certain specific hematological conditions.
- Molecular tests: These tests support the diagnosis and monitoring process by allowing the genetic examination of the disease.
- Blood group and cross-matching tests: These are performed to determine a compatible blood product in cases where a blood transfusion is needed.
- Sedimentation rate and CRP: These may be requested to assess the presence of inflammation or infection in the body.
- LDH test: A biochemical test that provides important information in certain hematological conditions where cell destruction is increased.
- Bilirubin tests: These are used particularly to evaluate conditions where the destruction of red blood cells is increased.
- Haptoglobin test: Can be helpful in cases where hemolysis, or the destruction of red blood cells, is suspected.
- Infection screenings: These are performed to identify infectious agents in children with suppressed immune systems or those requiring special evaluation.
- Urine and biochemistry tests: These can be used as supportive measures to assess the impact of blood disorders on other systems of the body.
What treatment methods are used in the Pediatric Hematology Department?
Treatment methods applied in the Pediatric Hematology department are medical approaches planned according to the type and severity of blood diseases seen in children, as well as the child's overall health condition. The treatment process is determined individually for each child, and the goal is to control the disease while supporting healthy growth and development.
Drug Treatment
Depending on the type of blood disorder, iron, vitamins, immune regulators, or specific medications can be used to control the disease.
Blood and Blood Product Transfusions
If necessary, red blood cells, platelets, or plasma are administered to help balance blood values.
Chemotherapy
In some hematological diseases, primarily leukemia, it is a drug treatment applied to destroy diseased cells.
Bone Marrow (Stem Cell) Transplantation
Bone marrow transplantation aims to reconstruct the blood production system by replacing damaged bone marrow with healthy stem cells.
Immunotherapy
It is a targeted therapy method that strengthens the immune system, enabling it to fight disease.
Supportive Treatments
It includes practices that support the process, such as infection control, nutritional support, fluid therapy, and management of side effects.
Hormone and Growth Support Therapies
These are supportive treatments applied to balance the effects of certain hematological diseases on growth and development.
Antibiotic and Antiviral Treatments
It is used to prevent or treat infections in children with weakened immune systems.
Pain and Symptom Management
It helps control symptoms such as pain and fatigue that develop due to illness or treatment.
Psychosocial Support
In long-term treatment processes, it aims to provide emotional support to the child and family and to improve treatment adherence.
