Hereditary spherocytosis: Consequences of delayed diagnosis.

OBJECTIVE: To determine whether patients with undiagnosed hereditary spherocytosis hospitalized for transfusions might have avoided hospitalization via earlier diagnosis. STUDY DESIGN: Charts of all (N = 30) patients with hereditary spherocytosis seen in pediatric hematology at West Virginia University-Charleston were reviewed. Family and transfusion history and presence of neonatal jaundice were recorded. Complete blood count and reticulocyte values during infancy were available for 20 of 30 patients, while baseline steady-state values were available for all 30. RESULTS: Transfusions were given to 22 patients; 12 of 14 with an aplastic crisis were undiagnosed. In 10 of 12, the severity of anemia led to hospitalization (3 to intensive care). All 10 had prior mean corpuscular hemoglobin concentration and/or red cell distribution width elevations and a history of neonatal jaundice; 7 of 10 had a positive family history. CONCLUSIONS: Undiagnosed hereditary spherocytosis may lead to inpatient transfusions for severe anemia. Earlier detection of hereditary spherocytosis is easily achievable and may reduce hospitalizations via closer monitoring.