Table 1 Clinical, ultrasound, and biological characteristics of patients
All patients | Intradialytic hypotension | p | ||
|---|---|---|---|---|
No | Yes | |||
N = 248 | 169 (68.1%) | 79 (31.9%) | ||
Clinical characteristics | ||||
Gender | 0.684 | |||
- Male, n (%) | 149 (60.1%) | 103 (60.9%) | 46 (58.2%) | |
- Female, n (%) | 99 (39.9%) | 66 (39.1%) | 33 (41.8%) | |
Age (years) | 68.0 (58.2–76) | 66 (55–76) | 70 (64–76) | 0.018 |
Charlson score | 10 (8–12) | 10 (8–12) | 10 (8–12) | 0.116 |
APACHE II | 15 (12–18) | 14 (12–18) | 16 (13–18) | 0.215 |
SOFA | 8 (6–100) | 8 (6–10) | 8 (7–10) | 0.057 |
Sepsis, n (%) | 123 (49.6%) | 71 (42%) | 52 (65.8%) | < 0.001 |
Use of norepinephrine, n (%) | 37 (14.9%) | 5 (3%) | 32 (40.5%) | < 0.001 |
Mechanical ventilation, n (%) | 34 (13.7%) | 14 (8.3%) | 20 (25.3%) | < 0.001 |
Predialytic arterial pressure | ||||
Systolic blood pressure, mmHg | 132 (114.2–152) | 140 (123–160) | 114 (103–135) | < 0.001 |
Diastolic blood pressure, mmHg | 70 (60.2–80.7) | 71 (64–86) | 64 (58–73) | < 0.001 |
Mean blood pressure, mmHg | 89.5 (79.0–105.0) | 94 (84–109) | 81 (75–90) | < 0.001 |
Biological characteristics | ||||
Hemoglobin, g/dL | 9 (7.6–10.1) | 9 (7.4–10.1) | 9 (7.8–10.2) | 0.839 |
Bicarbonate, mEq/L | 20(18–23) | 20 (18–23) | 20 (16–22) | 0.321 |
Sodium, mEq/L | 138 (138–140) | 138 (135–141) | 139 (134–141) | 0.565 |
Urea, mg/dL | 143 (114.2–194) | 143 (110–195) | 142 (119–194) | 0.659 |
Lactate, mmol/L | 1.4 (1.1–1.9) | 1.3 (1.1–1.7) | 1.7 (1.2–2.2) | < 0.001 |
Fluid balance, mL | 1772 (1540–2320) | 1800 (1535–2320) | 1750 (1540–2350) | 0.762 |
Ultrasound characteristics | ||||
Pulmonary congestion, n (%) | 144 (58.1%) | 106 (62.7%) | 38 (48.1%) | 0.030 |
IVC collapsibility, n (%) | 74 (29.8%) | 14 (8.3%) | 60 (75.9%) | < 0.001 |