This study aimed to investigate patients’ clinical, hematologic, and biochemical profiles with pancytopenia. This prospective observational study was conducted at a tertiary care hospital from January 2019 to June 2020 on 80 patients, 39 (48.7%) were males and 41 (51.2%) were females, over the age of 18 presenting with pancytopenia. All the patients were subjected to thorough clinical and physical examinations. A complete blood count (CBC), peripheral smear examination, bone marrow aspiration, and reticulocyte count were performed. The data was analyzed using the IBM SPSS 20.0 software. Most of the cases had moderate (Hb<7-9.9g/dl) anemia (63.7%, 51/80 cases), while severe anemia (<7g/dl) was seen in 31.2% (25/80) cases, and 5% (04/80) cases showed mild anemia (Hb<10-11.9g/dl). Most patients with severe anemia had vitamin B12 deficiency anemia (12/80), that is, 15%. Macrocytic anemia was noted in preponderance (50% cases, 40/80), whereas microcytic hypochromic and normocytic hypochromic anemia constituted 21.3% (17/80), and dimorphic anemia was seen in 7.5% (06/80) cases. Based on WBC counts, 56.3% of cases (45/80) showed counts between 2000 and 4000 cells/cu.mm, while counts between 1000 and 2000 cells/cu.mm were seen in 31.3% of cases (25/80), and 12.5% of cases (10/80) had counts of <1000 cells/cu.mm. The study highlighted that 28.8% (23/80) had a platelet count between 50,000 and 1 lakh/cu.mm (mild thrombocytopenia), 36.3% (29/80) cases had a platelet count between 20,000 and 50,000/cu.mm (moderate thrombocytopenia), and 35% (28/80) cases had a platelet count less than 20,000/cu.mm (severe thrombocytopenia). The most common diagnosis of bone marrow aspiration was megaloblastic anemia, seen in 50.0% (6/12) cases. Megaloblasts were seen in 50.0% (6/12) cases of megaloblast anemia. The bone marrow aspirate of a patient with dengue fever and malaria showed macrophages containing engulfed red blood cells, lymphocytes, and platelets. Myeloblasts (>20%) were seen in 1 (8.3%) case of AML, and decreased myelopoiesis was seen in 25% of cases (two cases of aplastic anemia and one case of MDS). This study concludes that vitamin B12 deficiency is the most common cause, which is more common in people who are strict vegetarians, with a predominance in the younger age group. The study also emphasized the vitality of the physical findings, detailed primary hematologic and biochemical investigations, and peripheral blood pictures, all of which provide precious information in the work-up of pancytopenia patients.
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