Table 1.
Types of surgery and grading of surgical difficulty.
| Surgical procedures | Surgical risk category | Number of case |
|---|---|---|
| Anterior decompression of cervical spinal canal | Level-3 | 1 |
| Artificial femoral head replacement | Level-3 | 2 |
| Clipping of cerebral aneurysm | Level-4 | 1 |
| Cesarean section | Level-2 | 5 |
| Debridement of lower extremity | Level-2 | 1 |
| Debridement of eyeball | Level-2 | 1 |
| Excision of breast mass | Level-1 | 1 |
| Excision of intracranial lesions | Level-3 | 1 |
| Excision of lower extremity muscle lesions | Level-2 | 1 |
| Laparoscopic appendectomy | Level-2 | 2 |
| Laparoscopic partial colectomy | Level-3 | 4 |
| Laparoscopic radical gastrectomy | Level-4 | 1 |
| Pancreatoduodenectomy | Level-3 | 1 |
| Radical operation of ovarian cancer | Level-3 | 1 |
| Radical operation of laryngeal cancer | Level-3 | 1 |
| Radical resection of rectal cancer | Level-3 | 1 |
| Radical resection of esophageal cancer | Level-3 | 2 |
| Radical unilateral mastectomy | Level-3 | 1 |
| Removal of tibial internal fixation plate | Level-2 | 1 |
| Renal transplant | Level-3 | 1 |
| Thoracoscopic lobectomy | Level-3 | 3 |
| Total hip replacement | Level-3 | 1 |