Table 2.
Epidemiological data and indications for surgery
| Epidemiological data | |
| Sex | 27 males;11 females |
| Mean age | 70.2 ± 6.9 years (range 57–82 years) |
| Mean duration of operation | 10.4 h |
| Median perioperative blood loss | 400 mL (range 50–4650 mL) |
| Mean perioperative fluid loss through surgical drains | 430 ± 355 mL |
| Mean time from epidural catheterization to withdrawal | 6.2 ± 3.2 days (range 2–15) |
| Included and preoperative tests taken, but postoperative tests not taken due to transfer to other hospital or researcher being absent. | 5 patients |
| Indication for surgery | Number of patients |
| Gastric cancer | 17 |
| Oesophageal cancer | 4 |
| Gastrooesophageal cancer | 2 |
| Gallbladder cancer or cholangiocarcinoma | 3 |
| Pancreatic cancer | 9 |
| Tumour in ampulla of Vater | 1 |
| Cancer simultaneously involving upper gastrointestinal tract and colon | 2 |