Table 4.
Metabolic and volume control of the studied groups in the first three sessions of PHD.
| G1 = 6 h (n = sessions) | G2 = 10 h (n = sessions) | ||||||
|---|---|---|---|---|---|---|---|
|
S1 (n = 104) |
S2 (n = 70) |
S3 (n = 38) |
S1 (n = 90) |
S2 (n = 63) |
S3 (n = 44) |
p valu e ∗ | |
| Predialysis Ur (mg/dl) | 158 ± 59 | 123 ± 48 | 119 ± 44 | 137 ± 6a | 102 ± 140b | 89 ± 43c | NS |
| URR | 0.6 ± 0.1 | 0.6 ± 0.1 | 0.56 ± 0.1 | 0.68 ± 0.1d | 0.58 ± 0.1b | 0.62 ± 0.1f | <.0001 |
| Kt/V | 1.05 ± 0.05 | 1.06 ± 0.05 | 1.03 ± 0.05 | 1.23 ± 0.06d | 1.04 ± 0.05 | 1.18 ± 0.06f | 0,01 |
| Cr (mg/dl) | 3.7 ± 1.4 | 2.8 ± 1.2 | 2.9 ± 1.1 | 3.6 ± 1.7a | 2.5 ± 1b | 2.4 ± 1.2c | NS |
| K (mEq/L) | 4.7 ± 1 | 4.4 ± 0.9 | 4.3 ± 0.8 | 4.8 ± 1a | 4.3 ± 0.8b | 3.9 ± 0.6f | 0.04 |
| P (mEq/L) | 6.5 ± 2.6 | 5.5 ± 2.1 | 5.8 ± 2.2 | 6 ± 2.5a | 5.5 ± 3.2b | 4.1 ± 1.6f | 0.009 |
| Bic (mEq/L) | 18.3 ± 4.3 | 20.3 ± 4 | 20.3 ± 4 | 19.2 ± 4.3a | 20.9 ± 5.5b | 22.1 ± 3.5c | NS |
| pH | 7.2 ± 0.1 | 8.4 ± 8.8 | 7.2 ± 0.09 | 7.2 ± 0.1a | 7.2 ± 0.1b | 7.2 ± 0.1f | 0.03 |
| Presc. UF (ml) | 2064 ± 927 | 2262 ± 852 | 2217 ± 755 | 2580 ± 1000d | 2626 ± 1123e | 2656 ± 1004f | 0.0002 |
| Real UF (ml) | 1791 ± 963 | 2032 ± 930 | 1940 ± 931 | 2345 ± 1017d | 2097 ± 1494b | 2240 ± 1295c | 0.0006 |
| Real UF (ml/h) | 298 ± 160 | 338 ± 156 | 331 ± 149 | 234 ± 98 | 209 ± 147 | 224 ± 129 | 0.003 |
| FB (1) | 3.27 ± 1.9 | - | 1.33 ± 2.6 | 3.47 ± 1.7 | - | 0.47 ± 2.4 | NS |
Values are presented in mean and standard deviation.
PHD: prolonged hemodialysis, Ur: urea, URR: urea reduction ratio, Cr: creatinine, K: potassium, P: phosphorus, Bic: bicarbonate, UF: ultrafiltration, and Presc.: prescribed.
a: similar to S1 of G1, b: similar to S2 of G1, and c: similar to S3 of G1.
d: different from S1 of G1, e: different from S2 of G1, and f: different from S3 of G1.
NS: not significant (p >;0.05).