Variant Hemoglobin: Implications for Health and Mediterranean Anemia - Family Medicine

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Variant hemoglobin


Hello, I recently underwent a self-paid health check-up with results showing MCH 28.4, MCV 85.4, and MCHC 33.2, all of which are normal.
My previous health check-ups have also been fine, but this time I added an electrophoresis test with results showing HBH 0, HBA1 59.8, HBF 0, HBS 0, HBA2 3.3, HBBART"S 0, and variant hemoglobin Kaohsiung 36.9.
Could you please explain what HB-Kaohsiung is and its relationship with Mediterranean anemia? (Doctors usually assess MCV and MCH to determine the presence of Mediterranean anemia, and if I hadn't done this test, I would remain unaware of my variant hemoglobin issue.) Does this have any impact on my health? Thank you!

Chen, 30~39 year old female. Ask Date: 2016/11/16

Dr. Liao Yaopan reply Family Medicine


Hello, regarding the above situation, it is recommended that you first consult your health check-up physician for assistance in interpreting the results.
If necessary, please seek an evaluation from a hematologist at Changhua Hospital.
Take care.

Reply Date: 2016/11/16

More Info


Understanding variant hemoglobin and its implications for health, particularly in relation to Mediterranean anemia (also known as thalassemia), is crucial for individuals who may have abnormal hemoglobin results. Based on the information provided, it appears that you have undergone a hemoglobin electrophoresis test, which is a valuable diagnostic tool for identifying different types of hemoglobin in the blood.

Firstly, let's clarify what variant hemoglobin is. Hemoglobin is the protein in red blood cells responsible for transporting oxygen throughout the body. Variants of hemoglobin can arise due to genetic mutations, leading to conditions such as sickle cell disease, thalassemia, and other hemoglobinopathies. The results you provided indicate that you have a specific variant, referred to as "HB-Kaohsiung," which is a type of variant hemoglobin.

The relationship between variant hemoglobin and Mediterranean anemia is significant. Mediterranean anemia, or thalassemia, is a genetic blood disorder characterized by reduced production of hemoglobin. Individuals with thalassemia may have normal or elevated levels of certain types of hemoglobin, but they often experience anemia due to ineffective erythropoiesis (the production of red blood cells) and increased destruction of red blood cells. The presence of variant hemoglobin can complicate the diagnosis and management of thalassemia, as it may mask the underlying condition or lead to misinterpretation of laboratory results.

In your case, the normal values for MCH (Mean Corpuscular Hemoglobin), MCV (Mean Corpuscular Volume), and MCHC (Mean Corpuscular Hemoglobin Concentration) suggest that your red blood cells are of normal size and have a normal concentration of hemoglobin. However, the presence of variant hemoglobin (HB-Kaohsiung) indicates that there may be an underlying genetic factor that could affect your health.

The health implications of having a variant hemoglobin depend on several factors, including the specific type of variant, its prevalence in the population, and whether it is associated with any clinical symptoms. Some individuals with variant hemoglobin may remain asymptomatic and lead normal lives, while others may experience complications such as anemia, fatigue, or other related health issues. It is essential to consult with a hematologist or a healthcare provider who specializes in blood disorders to interpret your results accurately and assess any potential health risks.

If you have concerns about how this variant hemoglobin may affect your health, it is advisable to undergo further genetic testing and counseling. This can help determine whether you carry any genes associated with hemoglobin disorders and provide guidance on managing any potential health issues.

In summary, while your current blood test results indicate normal red blood cell indices, the presence of variant hemoglobin (HB-Kaohsiung) warrants further investigation. Understanding the implications of this variant in relation to Mediterranean anemia is essential for your health management. Consulting with a healthcare professional specializing in hematology will provide you with the necessary insights and recommendations tailored to your specific situation.

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