The Case Report of a 97-Year-Old Patient With Chronic Anemia and Hemoglobin Value of 1.7 g/dl and Review of the Literature.

Although hemoglobin levels beneath 6.5 g/dl are considered to be life-threatening and the patients theoretically suffer from a cluster of symptoms, few cases of patients who seek medical assistance when their hemoglobin levels had fallen beneath 3 g/dl have been reported in the literature. Here, we describe the case of a 97-year-old patient who was transferred to the emergency department with dyspnea and the initial screening tests showed a hemoglobin level of 1.7 g/dl, due to iron deficiency. The patient was hemodynamically stable, and no ischemic lesions were seen on the electrocardiogram. His dyspnea was due to a lower respiratory tract infection and bilateral pleural effusion. He was bedridden for two years. His absence of physical activity in combination with the slow onset of anemia and the absence of severe underlying pulmonary and cardiovascular diseases could hide the symptoms until additional stressful events, such as the respiratory tract infection and the deterioration of heart function, occurred. So, we must keep in mind that in elderly patients with reduced physical activity and without severe pulmonary and cardiovascular comorbidities, the symptoms of severe anemia may go unnoticed until hemoglobin reaches life-threatening levels.