Does acute renal dysfunction develop more frequently among octogenarians compared to septuagenarians after cardiac surgery?
Octogenarians do not develop acute kidney failure more frequently than their matched septuagenarian counterparts. They can be operated on at an acceptable risk for morbidity and mortality. Preoperative impaired renal function is associated with higher risk for mortality in septuagenarians.
In patients admitted for decompensated HF, high serum osmolarity predicts a worse outcome, and is associated with a higher comorbidity burden, supporting its use as a candidate prognostic target in HF.