Causes of Ventriculoperitoneal Shunt revision (n=45).
| Cause of revision | Total cases at first revision (n=45) | Total cases at second revision (n=21) | Total cases at third revision (n=11) | Total cases at fourth revision (n=5) | P-value |
|---|---|---|---|---|---|
| n (%) | |||||
| Valve mechanical failure | 15 (33) | 4 (19) | 4 (36) | 1 (20) | 0.595 |
| Shunt infection | 11(24) | 8 (38) | 3 (27) | 2 (40) | 0.660 |
| Proximal catheter malfunction | 8 (18) | 2 (9.5) | 1 (9) | 0 (0) | 0.580 |
| Distal catheter obstruction | 5 (11) | 2 (9.5) | 0 (0) | 1 (20) | 0.598 |
| Others | 3 (7) | 5 (24) | 3 (27) | 1 (20) | 0.156 |
| *Not documented | 3 (7) | 0 (0) | 0 (0) | 0 (0) | 0.464 |