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Prophylaxis for postoperative PTE
| 1995–1997 | 1998 | 1999–2003 | |
| No prevention | 9 | 0 | 0 |
| Elastic bandages | 4 | 1 | 0 |
| Elastic stockings | 10 | 4 | 0 |
| IPC | 0 | 0 | 14 |
Before vs. after introduction of IPC: 1.19% (23/1,928) vs. 0.40% (14/3,525) (p < 0.01)
IPC: intermittent pneumatic compression
PTE: pulmonary thromboembolism
