Abstract
Hemoglobin SE (HbSE) disease are rare globally and there is paucity of literature regarding this condition. Cases reported in the Indian scenario so far have been limited to the tribal populations. This case series aims to highlight the rarity of this double heterozygous state and to raise awareness of its community prevalence beyond the tribal population. This is a case series over a 5-year observation period with six cases of double heterozygosity for HbS and HbE in our tertiary care centre. Four cases were in the 8-15 years' age group and 2 cases of 24-25 years' age group reported for initial evaluation due to easy fatigability and weakness: Two cases were siblings with history of consanguineous marriages in the family. Mild Pallor, variable icterus, spleen was just palpable in three of the cases and low MCV recorded in all cases. Sickling tests were positive and high performance liquid chromatography (HPLC) revealed both HbS > 50% and HbE fractions ≥ 25%. It's important to detect this rare condition, prevalent in consanguineous marriages as dreaded complications like sickling crisis may manifest during pregnancy and air travel. Detection and genetic counselling is important for prognosis, planning follow up and therapy for this uncommon double heterozygous state.