| Methods for eliminating RLC | Years | |||||||
| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
| Abdominalization | 2 | 1 | - | 2 | 4 | 1 | 6 | 1 |
| Omentoplasty | 1 | - | 4 | 2 | 3 | 4 | 5 | 2 |
| Drainage of RLC | 2 | 1 | 4 | 2 | 2 | - | 2 | 2 |
| Omentoplasty with drainage of RLC | - | - | - | - | 3 | - | - | 1 |
| Total | 5 | 2 | 8 | 6 | 12 | 5 | 13 | 6 |