Table 2.
Vascular Access Outcomes in Patients who Underwent the Assigned Surgery for AV Access Placement
| Outcome | All (N = 29) | AVG-First (n = 13) | AVF-First (n = 16) |
|---|---|---|---|
| Primary, early AV access failurea | 5 (17%) | 4 (31%) | 1 (6%) |
| Time to early AV access failure, d | 57.0 (22.0-85.0) | 47.5 (22.0-79.0) | 85.0 (-) |
| Primary, late AV access failureb | 4 (14%) | 0 (0%) | 4 (25%) |
| Time to late AV access failure, d | 128.0 (120.0-244.0) | — | 128.0 (120.0-244.0) |
| First AV access cannulationc | 21 (72%) | 10 (77%) | 11 (69%) |
| Time to first AV access cannulation, d | 51.5 (36.0, 66.0) | 39.5 (35.0, 55.0) | 63.5 (45.8, 75.0) |
| Successful AV access cannulation | 16 (55%) | 8 (62%) | 8 (50%) |
| Time to successful AV access cannulation,c d | 95.0 (66.5, 151.0) | 75.0 (53.3, 108.0) | 113.5 (89.0, 181.5) |
| Endovascular interventions on index AV accessd,e | 12 (41%); 16 | 5 (38%); 7 | 7 (44%); 9 |
| Surgical re-intervention on index AV accesse,f | 7 (24%); 8 | 3 (23%); 3 | 4 (25%); 5 |
| CVC exchange over wire due to malfunction or thrombosise | 5 (17%); 6 | 3 (23%); 4 | 2 (13%); 2 |
| Follow-up,g d | 321.0 (181.0, 365.0) | 327.0 (202.0, 365.0) | 321.0 (168.5, 365.0) |
Note: Data are reported as number of patients (percent), median (1st, 3rd quartile), or median (range).
Abbreviations: AV, arteriovenous; AVF, arteriovenous fistula; AVG, arteriovenous graft; CVC, central venous catheter.
Early primary AV access failure was defined as index AV access failure within 3 months of surgical placement and no successful cannulation.
Late primary AV access failure was defined as lack of successful AV access cannulation within 6 months of surgical placement and does not include counts of early primary failure.
Time to first or successful AV access cannulation and duration of follow-up are reported from the date of the index AV access placement.
Adjuvant percutaneous interventions included percutaneous angiography, with or without thrombectomy, angioplasty, or stent placement.
Represents total number of events.
Surgical reintervention included ligation of collateral vein(s), second-stage procedure in transposed brachiobasilic AVF, revision or arterial angioplasty for steal syndrome, and AVG removal for access infection.
Follow-up is calculated from the date of surgical placement of the index AV access.