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National Amyloidosis Centre (NAC) Risk Score Calculator
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.