NPPB and amyloidosis: When the patients were separated into two groups based on the presence or absence of cardiac amyloidosis, the results showed that the patients with cardiac amyloidosis had significantly higher NT-proBNP (p = 0.002) and higher hs-cTnT (p < 0.001) than the patients without amyloidosis, indicating increased incidence of heart failure in cardiac amyloidosis.