TABLE 1.
Rates of subdural collections
| Grouping Method | Op | No. of Patients | Subdural Collections | % Affected |
|---|---|---|---|---|
| 6-mo postop, no revisions | ||||
| ITT | ETV/CPC | 29 | 6 | 20.7% |
| VPS | 33 | 17 | 51.5% | |
| TR | ETV/CPC | 24 | 2 | 8.3% |
| VPS | 38 | 21 | 55.3% | |
| Total | 62 | 23 | 37.1% | |
| All time points & patients | ||||
| ITT | ETV/CPC | 51 | 15 | 29.4% |
| VPS | 49 | 33 | 67.4% | |
| TR | ETV/CPC | 43 | 10 | 23.3% |
| VPS | 57 | 38 | 66.7% | |
| Total | 100 | 48 | 48.0% | |