HP and anemia: TMA patients presented with profound anemia (hemoglobin 7.8 (IQR: 7.2–8) g/dL), thrombocytopenia (40 (IQR: 28–45) G/L), reduced haptoglobin (0.07 G/L), elevated LDH levels (1777 (IQR: 859–2631) U/L) and elevated schistocyte count (9 (IQR: 6–20) ‰) after surgery.