Demographic characteristics, clinical features, and computed tomographic findings for 17 patients with chronic subdural haematoma or effusion
| Patient no. | Sex/age (y) | Preoperative clinical findings | Location of SDH/effusion | Thickness of SDH/effusion in CT (mm) | Operation after trauma (days) |
|---|---|---|---|---|---|
| D, disorientation; HA, headaches; HP, hemiparesis; IC, impairment of consciousness; MI, memory impairment; SI, speech impairment; SDH, chronic subdural haematoma; R, right; L, left. | |||||
| The aetiology of subdural haematoma or effusion was unknown in patients 13, 16, and 17, and consisted of head trauma in all the remaining patients. | |||||
| *Time lapse between the first craniotomy and reoperation. | |||||
| Chronic subdural haematoma | |||||
| 1 | M/76 | D, IC, MI, | R | 20 | 10 |
| 2 | M/89 | D, IC, HP, MI | R | 20 | 60 |
| 3 | M/82 | D, IC, HP | R | 30 | 52 |
| 4 | M/78 | IC, MI, SI | R, L | 20, 20 | 14 |
| 5 | M/54 | HP | R | 15 | 67 |
| 6 | M/46 | D, IC, HP, MI | L | 25 | 85 |
| Chronic subdural effusion | |||||
| 7 | M/72 | D, IC, SI, | R, L | 13, 10 | 19 |
| 8 | M/71 | D, IC, HP, SI | R, L | 12, 10 | 30 |
| 9 | F/47 | HA | R | 10 | 15 |
| 10 | M/39 | D, IC, HP | R, L | 10, 12 | 31 |
| 11 | F/72 | D, IC, MI | R, L | 12, 10 | 25 |
| 12 | F/79 | D, IC, MI | R, L | 15, 18 | 30 |
| 13 | M/67 | D, MI | R | 12 | Unknown |
| Postoperative subdural effusion | |||||
| 14 | F/73 | HP | R | 15 | 25* |
| 15 | M/81 | D, MI | R | 15 | 20* |
| 16 | M/81 | D, MI | L | 20 | 61* |
| 17 | F/83 | D, IC, HP, MI | L | 30 | 31* |