nephrotic syndrome

Nephrotic syndrome is a glomerular disease characterized by the classic triad of heavy proteinuria exceeding 3.5 grams per day, hypoalbuminemia, and generalized edema, resulting from damage to the podocytes of the glomerular filtration barrier. The condition carries significant clinical importance because it predisposes patients to serious complications including thromboembolism due to urinary loss of anticoagulant proteins, hyperlipidemia from increased hepatic lipoprotein synthesis, infections from immunoglobulin loss, and potential progression to chronic kidney disease. Medical students must understand the distinct histological patterns of primary causes such as minimal change disease, focal segmental glomerulosclerosis, and membranous nephropathy, as each has different epidemiological associations, responses to glucocorticoid therapy, and long-term prognoses that guide clinical management decisions.