Table 2.
Primary and assisted primary patency rate between two group.
| Primary patency rate | Assisted primary patency rate | |||
|---|---|---|---|---|
| CVC group | Non-CVC group | CVC group | Non-CVC group | |
| General | ||||
| 6 months | 76.9% (20/26) | 80.6% (25/31) | 92.3% (24/26) | 93.5% (29/31) |
| 12 months | 54.2% (13/24) | 70.0% (21/30) | 91.7% (22/24) | 90.0% (27/30) |
| 18 months | 45.5% (10/22) | 67.9% (19/28) | 86.4% (19/22) | 82.1% (23/28) |
| 24 months | 25.0% (4/16) | 44.4% (8/18) | 68.8% (11/16) | 61.1% (11/18) |
| Subgroup: left side | ||||
| 6 months | 60.0% (6/10) | 76.0% (19/25) | 100% (10/10) | 92.0% (23/25) |
| 12 months | 50.0% (5/10) | 66.7% (16/24) | 100% (10/10) | 87.5% (21/24) |
| 18 months | 40.0% (4/10) | 65.2% (15/23) | 90.0% (9/10) | 82.6% (19/23) |
| 24 months | 25.0% (2/8) | 46.7% (7/15) | 62.5% (5/8) | 66.7% (10/15) |
| Subgroup: right side | ||||
| 6 months | 87.5% (14/16) | 100% (6/6) | 87.5% (14/16) | 100% (6/6) |
| 12 months | 57.1% (8/14) | 83.3% (5/6) | 85.7% (12/14) | 100% (6/6) |
| 18 months | 50.0% (6/12) | 80.0% (4/5) | 83.3% (10/12) | 80.0% (4/5) |
| 24 months | 25.0% (2/8) | 33.3% (1/3) | 75.0% (6/8) | 33.3% (1/3) |
CVC group: patients with previous hemodialysis catheter placement in ipsilateral upper extremity; Non-CVC group: patients without previous hemodialysis catheter placement in ipsilateral upper extremity.