Maeder 2013 reported: "58% of the patients in the NT‐proBNP‐guided and 50% in the symptom‐guided group had at least one SAE (p=0.32). SAE’s related to renal failure (14% versus 2%, p=0.01) were more common in the NT‐proBNP‐guided group, whereas hypotension tended to be less common (0% versus 8%, p=0.06)." No additional information. Here, NPPB is linked to acute kidney injury.