| Risk for heart failure incidence and progression | Class | References |
|---|---|---|
| Periodic monitoring of PVC burden (every 6 months) and LVEF and dimensions are useful in patients with frequent, asymptomatic PVCs and a normal LVEF and dimensions. |
|
458 |
| PVC burden exceeding 20% is associated with a higher risk of PVC-related cardiomyopathy. |
|
459–461 |
| PVC burden lower than 10% is associated with a lower risk of PVC-related cardiomyopathy. |
|
462 , 463 |
| In patients with PVC-related cardiomyopathy, absence of LGE on cardiac MRI may be used to identify patients with a favourable prognosis of left ventricular systolic function recovery. |
|
464–466 |
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