Prognosis of Chronic Renal Failure

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Abstract
After serum creatinine levels exceeded 10 mg/100 ml, median survival was 55 days (to death or dialysis) in a group of 112 patients with chronic renal disease. Renal failure was partially reversible in 29 patients, partially accounting for prolonged survival. Those with polycystic kidneys, pyelonephritis, or obstructive nephropathy survived longer, partially because of more frequent reversibility and a slower increase in serum creatinine concentration. Diabetic nephropathy, myelomatous kidneys, and amyloidosis were associated with shorter survival, less frequent reversibility, and more rapid progression. Urinary infection and extracellular volume depletion often accounted for partially reversible renal failure and prolonged survival. Blood pressure and age were not prognostic variables, while coexistent heart failure shortened survival. Survival correlated significantly with sodium excretion.

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