What is Myelodysplastic Syndrome?
Disease description:
I've been feeling very unwell lately, with frequent dizziness, fatigue, and easy bruising or bleeding. After going to the hospital for a checkup, the doctor said it might be myelodysplastic syndrome. What exactly is this disease?
Doctor's answer (1)
Dr. Chen Jian
Myelodysplastic syndromes (MDS) are a group of heterogeneous diseases originating from hematopoietic stem cells.
The main characteristics include abnormal development of one or more blood cell lines in the bone marrow. Despite active bone marrow function, the quality of blood cells produced is poor, leading to ineffective hematopoiesis and reduced peripheral blood cell counts. For example, red blood cells cannot carry oxygen normally, white blood cells struggle to fight infections effectively, and platelets have impaired function in hemostasis. Moreover, patients with myelodysplastic syndromes face an increased risk of progressing to acute myeloid leukemia.
Patients with myelodysplastic syndromes typically present with anemia, susceptibility to infections, and a tendency to bleed, which can progress to pancytopenia in severe cases. Based on the proportion of blast cells in the bone marrow, the degree of blood cell reduction, and morphological features, myelodysplastic syndromes are classified into different subtypes, such as refractory anemia, refractory anemia with ringed sideroblasts, and refractory cytopenia with multilineage dysplasia.
Treatment strategies must be individualized, based on factors such as the patient's age, physical condition, and risk stratification. Low-risk patients may require only supportive treatments, such as blood transfusions and growth factor supplementation; high-risk patients may need more aggressive therapies, such as chemotherapy or hematopoietic stem cell transplantation.
