2 weeks after recovering from angina a 29-year-old patient noticed face edemata, weakness, decreased work performance. There was gradual progress of dyspnea, edemata of the lower extremities, lumbar spine. Objectively: pale skin, weakening of the heart sounds, anasarca. AP-160/100 mm Hg. In urine: the relative density -1021, protein - 5 g/l, erythrocytes - 20-30 in the field of vision, hyaline cylinders -4-6 in the field of vision. What is the most likely diagnosis?