National Amyloidosis Centre (NAC) Risk Score Calculator

Clinical calculation support · Verify results before clinical use

  • NT-proBNP (ng/L)
  • eGFR (mL/min/1.73m²)
  • National Amyloidosis Centre (NAC) Risk Score: Explanation and Clinical Context
    The NAC staging system stratifies patients with transthyretin cardiac amyloidosis (ATTR-CA) into prognostic categories based on NT-proBNP and eGFR levels. Stage 1 indicates a lower risk of mortality, while Stage 3 denotes a higher risk. This system aids clinicians in assessing disease severity and guiding treatment decisions.

    Reference:
    Nitsche C, et al. Expansion of the National Amyloidosis Centre staging system to detect early mortality risk in transthyretin cardiac amyloidosis. Eur J Heart Fail. 2024;26(7):1234-1242. doi:10.1002/ejhf.2997