Table 1 Clinical characteristics of study subjects, and hemodynamic parameters before, at maximum SBP change, and after hemodialysis.
From: Predialysis central arterial waveform and blood pressure changes during hemodialysis
Characteristic | Value | |
|---|---|---|
N | 152 | |
Age, years | 68 ± 11 | |
Male, % | 70.4 | |
Duration of hemodialysis, years | 8.8 ± 9.0 | |
Previous cardiovascular disease, % | 15.2 | |
Diabetes mellitus, % | 46.1 | |
Hemodialysis time, min/session | 239 ± 26 | |
Body mass index, kg/m2 | 22.5 ± 4.7 | |
Body weight after hemodialysis, kg | 58.6 ± 14.9 | |
Membrane area, m2 | 1.89 ± 0.50 | |
Blood flow rate, ml/min | 214 ± 35 | |
Single pool Kt/V | 1.43 ± 0.32 | |
Urea reduction ratio, % | 66.6 ± 8.4 | |
Serum creatinine, µmol/L | 902 ± 255 | |
Serum albumin, g/L | 36.5 ± 4.0 | |
Serum calcium, mmol/L | 2.2 ± 0.2 | |
Serum phosphorus, mmol/L | 1.8 ± 0.5 | |
Ankle-brachial index | 1.00 ± 0.20 | |
Cardio-ankle vascular index, n = 134 | 8.48 ± 1.89 | |
Echocardiography | ||
LV mass index, g/m2 | 103.2 ± 28.2 | |
LV hypertrophy, % | 33.1 | |
Fractional shortening, % | 34.2 ± 6.9 | |
Number of antihypertensive drugs, n (%) | ||
0 | 42 (27.6) | |
1 | 53 (34.9) | |
2 | 33 (21.7) | |
3 | 15 (9.9) | |
4 | 9 (5.9) | |
Calcium channel blockers, n (%) | 75 (49.3) | |
Renin-angiotensin system blockers, n (%) | 64 (42.1) | |
Beta blockers, n (%) | 35 (23.0) | |
Characteristic | Value | |
|---|---|---|
1st session | 2nd session | |
Ultrafiltration per body weight, ml/kg | 44.8 ± 16.9 | 35.9 ± 14.6† |
SBP, mmHg | ||
Pre HD | 153 ± 24 | 150 ± 25† |
Maximum SBP change | 125 ± 20 | 126 ± 21 |
Post HD | 145 ± 22 | 145 ± 21 |
DBP, mmHg | ||
Pre HD | 80 ± 15 | 79 ± 15 |
Maximum SBP change | 73 ± 13 | 73 ± 14 |
Post HD | 79 ± 14 | 78 ± 14 |
Heart rate, bpm | ||
Pre HD | 72 ± 12 | 73 ± 12 |
Maximum SBP change | 69 ± 13 | 70 ± 13 |
Post HD | 70 ± 13 | 70 ± 13 |
Central pulse pressure, mmHg | ||
Pre HD | 57 ± 15 | 55 ± 16† |
Maximum SBP change | 37 ± 13 | 39 ± 13 |
Post HD | 49 ± 16 | 49 ± 15 |
AIx@75, % | ||
Pre HD | 34.6 ± 14.3 | 33.3 ± 15.7 |
Maximum SBP change | 19.1 ± 21.5 | 19.4 ± 19.7 |
Post HD | 23.8 ± 17.8 | 24.7 ± 18.1 |
SEVR, % | ||
Pre HD | 113.0 ± 29.4 | 114.9 ± 27.0 |
Maximum SBP change | 159.1 ± 39.4 | 152.0 ± 36.9† |
Post HD | 139.5 ± 33.9 | 142.8 ± 33.1 |
