Patient characteristics_ The results are shown as the mean ± standard deviation or absolute value (percentage)
| Variable | All (N = 37) | Successful maturation | p-value | |
|---|---|---|---|---|
| Yes (N = 32) | No (N = 5) | |||
| Age (years) | 49 ± 14 | 48 ± 14 | 56 ± 7 | 0.080 |
| Sex | ||||
| Male | 27 (73%) | 27 (78%) | 2 (40%) | 0.110 |
| Female | 10 (27%) | 7 (22%) | 3 (60%) | |
| BMI (kg/m2) | 23.6 ± 3.5 | 23.4 ± 3.4 | 24.9 ± 4.0 | 0.460 |
| Educational level | ||||
| Until elementary school | 29 (78%) | 25 (78%) | 4 (80%) | 1.000 |
| Above high school | 8 (22%) | 7 (22%) | 1 (20%) | |
| Marital status | ||||
| Married | 14(38%) | 12(38%) | 2(40%) | 1.000 |
| Other | 23(62%) | 20(63%) | 3(60%) | |
| Smoking | 24 (65%) | 22 (69%) | 2 (40%) | 0.320 |
| Diabetes mellitus | 24 (65%) | 21 (66%) | 3 (60%) | 1.000 |
| Etiology | ||||
| Diabetes | 23 (62%) | 20(63%) | 3(60%) | 1.000 |
| Others | 14 (38%) | 12(38%) | 2(40%) | |
| Hypertension | 35 (95%) | 30 (94%) | 5 (100%) | 1.000 |
| Number of antihypertensives | 2 (1–2) | 2 (1–2) | 2 (2–3) | 0.323 |
| Beta-blockers | 2 (5%) | 2 (6%) | 0 (0%) | 0.750 |
| ACEIs | 1 (3%) | 1(3%) | 0 (0%) | 1.000 |
| Angiotensin receptor antagonist | 13(35%) | 12(38%) | 1(20%) | 0.640 |
| Time in HD (months) | 10 (7–18) | 10 (8–17) | 11 (7–36) | 0.721 |
| HD sessions | 2 (2–2) | 2 (2–2) | 2 (2–2) | 0.757 |
| Residual uresis (ml) | 459 ± 451 | 454 ± 437 | 490 ± 592 | 0.900 |
| Hemoglobin (mg/dL) | 9.4 ± 1.3 | 9.3 ± 1.3 | 10.1 ± 1 | 0.160 |
| Creatinine (mg/dL) | 9.9 ± 3.4 | 10 ± 3.3 | 9.7 ± 4.6 | 0.880 |
| Urea (mg/dL) | 129 ± 50 | 126 ± 49 | 149 ± 60 | 0.450 |
| Glucose (mg/dL) | 100 ± 33 | 100 ± 34 | 102 ± 27 | 0.870 |
| Number of venous catheters | 2 (1–2) | 2 (1–2) | 1 (1–3) | 0.924 |
Presurgical characteristics of the vessels and the surgery used to create arteriovenous fistulas_ The results are shown as the mean ± standard deviation, median (25th percentile – 75th percentile) or absolute value and percentage
| Variable | All (N = 37) | Successful maturation | p-value | |
|---|---|---|---|---|
| Yes (N = 32) | No (N = 5) | |||
| AVF arm | ||||
| Left | 32 (86%) | 27 (84%) | 5 (100%) | 1.000 |
| Right | 5 (14%) | 5 (16%) | 0 (0%) | |
| AVF vein diameter (mm) | 4.2 ± 10.4 | 4.3 ± 1 | 3.2 ± 0.9 | 0.04 |
| Artery diameter (mm) | 4.6 ± 0.6 | 4.5 ± 0.6 | 4.5 (0.41) | 0.88 |
| Artery area (mm2) | 23.5 ± 9.6 | 24.4 ± 9.9 | 17.7 ± 4.3 | 0.15 |
| Resistance index | 0.9 ± 0.1 | 0.91 ± 0.12 | 0.97 ± 0.04 | 0.27 |
| Flow-mediated dilation (%) | 13.7 ± 6.2 | 13.8 ± 6.4 | 13.7 ± 5.9 | 0.97 |
| Surgical time (minutes) | 89 ± 23 | 88 ± 23 | 98 ± 23 | 0.67 |
| Bleeding (ml) | 10 (8–20) | 10 (8–19) | 10 (8–20) | 0.75 |
| Atherotomy (mm) | 6 (5–7) | 6 (6–7) | 8 (5–8) | 0.38 |
| Artery wall (mm) | 0.7 (0.69–0.8) | 0.7 (0.69–0.85) | 0.7 (0.7–0.76) | 0.75 |
| Artery dilation (mm) | 0.6 ± 0.2 | 0.6 ± 0.25 | 0.62 ± 0.25 | 0.90 |
Postsurgical characteristics of the vessels used to establish arteriovenous fistulas_ The results are shown as the mean ± standard deviation, median (25th percentile – 75th percentile) or absolute value and percentage
| Variable | All (N = 37) | Successful maturation | p-value | |
|---|---|---|---|---|
| Yes (N = 32) | No (N = 5) | |||
| Thrill | 35 (95%) | 32 (100%) | 3 (60%) | 0.01 |
| Vein diameter (6 week) (mm) | 6.3 ± 1.06 | 6.6 ± 0.82 | 4.7 ± 1.17 | 0.02 |
| Blood flow (ml/min) | 1178.8 ± 764 | 1321 ± 722 | 271 ± 170 | 0.00 |
| Depth (mm) | 1.9 ± 0.8 | 2 ± 0.8 | 1.6 ± 0.6 | 0.00 |
| Anastomosis (mm) | 4.3 (4–4.8) | 4.4 (4–4.8) | 4.4 (4–4.8) | 0.18 |