Patients with multiple myeloma may present with or develop renal failure during the course of their disease. A patient who responds to therapy and shows reversal of the renal failure has a better prognosis than one who does not. The authors are from the University of Barcelona in Spain.
Parameters associated with reversibility of renal failure:
(1) degree of renal failure
(2) hypercalcemia
(3) level of proteinuria
Factors associated with reversible renal failure:
(1) lower serum creatinine (< 354 µmol/L), indicating mild renal failure
(2) presence of hypercalcemia (>= 2.88 mmol/L)
(3) low urine protein (< 1 gram per 24 hours)
Parameter |
Relative Risk for Reversible Renal Failure |
95% Confidence Interval |
p value |
serum creatinine < 354 µmol/L |
7.5 |
2 to 28 |
0.001 |
serum calcium >= 2.88 mmol/L |
3.27 |
1.1 to 9.3 |
0.02 |
urine protein < 1 gram per 24 hours |
2.78 |
1.09 to 7.08 |
0.02 |
from Table 2, page 1892
Parameters associated with survival after the onset of renal failure:
(1) response to chemotherapy
(2) degree of renal failure
Factors associated with poor survival:
(1) irreversible renal failure (mean survival 28.3 months if reversible; only 3.8 months
(2) treatment failure
Renal Failure |
Mean Survival |
5 Year Survival Rate |
reversible |
28.3 months |
23% |
irreversible |
3.8 months |
8% |
from Figure 2, page 1892
Specialty: Nephrology, Clinical Laboratory