Table 3.
Patient situation | AL amyloidosis | ATTR amyloidosis | ||||
---|---|---|---|---|---|---|
Frequency (months) | Assessment | Result | Frequency (months) | Assessment | Result | |
Receiving specific drug treatment | Every 3 (or after every 2 cycles) | NT-proBNPa; troponin T or I | Treatment success: >30% decrease; treatment failure, >30% increase; compared to previous result | Every 3‑6 | NT-proBNP, troponin T or I | Treatment success: depends on drugb |
Every 6 | ECG + Holter monitoring; transthoracic echocardiography including strain measurements; if available: heart CMR including LGE and T1 mapping | – | Every 12 | ECG + Holter monitoring; transthoracic echocardiography including strain measurements; if available: heart CMR including LGE and T1 mapping | – | |
After remission or in stable condition who does not receive specific treatment | Every 6 | ECG; NT-proBNPa; troponin T or I; transthoracic echocardiography including strain measurements | – | Every 6 | ECG; NT-proBNPa; troponin T or I; transthoracic echocardiography including strain measurements | – |
Every 12 | ECG + Holter monitoring; heart CMR including LGE and T1 mapping if laboratory tests or echocardiography suggest progression | – | Every 12 | ECG + Holter monitoring; heart CMR including LGE and T1 mapping if laboratory tests or echocardiography suggest progression | – |
CMR cardiac magnetic resonance imaging, LGE late gadolinium enhancement, ECG electrocardiogram, NT-proBNP N-terminal brain natriuretic peptide
aAssessment of NT-proBNP performed when patient is in cardiac compensation, some time after cortisone administration, if applicable
bTafamidis, absence of further NT-proBNP elevations rated as treatment success; patisiran, decrease >30% compared to the last results after 9 and 18 months have been reported [123].