Review Article
Surveillance and Monitoring of Dialysis Access
Table 2
Randomized trials with abnormal surveillance results and comparing intervention versus observation.
| Name | Total no. of patients | Intervention | Conservative | Surveillance methods used | Primary outcome | Result |
| Lumsden et al., 1997 [37] | 64 | 32 | 32 | Color flow duplex scan | Cumulative patency | Negative | Martin et al., 1999 [64] | 21 | 8 | 13 | Color flow duplex scan | Virgin graft patency | Positive | Dember et al., 2004 [63] | 64 | 32 | 32 | Static venous pressure/systolic blood pressure ratio | Access survival | Negative | Tessitore et al., 2004 [65] | 79 | 43 | 36 | Access flow | Access survival, thrombosis | Positive | Scaffaro et al., 2009 [66] | 108 | 53 | 58 | Duplex scan | Thrombosis | Negative |
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