|  |  |  |  |  |  |  | Study group | Control group | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Study | Year | Country | Type of surgery | Sample size | Age | Men% | transfusion threshold (Hb) | Patients number (n) | Autotransfusion system | Patients number (n) | Treatment |
Heddle [12] | 1992 | Canada | TKA | 79 | 70.16 | 35.4 | <9Â g/dl | 39 | Solcotrans | 40 | Regular drain |
Adalberth [13] | 1998 | Sweden | TKA | 73 | 72 | 45.6 | <9Â g/dl | 24 | Solcotrans | 25 24 | Regular drain No drain |
Thomas [14] | 2001 | UK | TKA | 231 | 69.63 | 42.9 | <9Â g/dl | 115 | Cell Saver 5 Haemonetics | 116 | Regular drain |
Cheng [15] | 2005 | Hong Kong | TKA | 60 | 70.53 | 30 | <9Â g/dl | 26 | DONOR | 34 | Regular drain |
Dramis [29] | 2006 | UK | TKA | 49 | 70.04 | 30.61 | <9Â g/dl | 32 | CellTrans | 17 | Regular drain |
Abuzakuk [30] | 2007 | UK | TKA | 104 | 68.5 | 41.34 | <9Â g/dl | 52 | Bellovac | 52 | Regular drain |
Moonen [17] | 2007 | UK | TKA THA | 77 83 | 69.25 | 14.38 | ASA classification | 45 35 | Bellovac, AstraTech AB Bellovac, AstraTech AB | 32 48 | Regular drain Regular drain |
Smith [16] | 2007 | UK | THA | 158 | 74.54 | 48.1 | <8Â g/dl | 76 | ABTrans | 82 | Regular drain |
Amin [31] | 2008 | UK | TKA | 178 | 70.35 | 46.07 | <8Â g/dl | 92 | Bellovac | 86 | Regular drain |
Atay [2] | 2010 | Turkey | THA TKA | 36 41 | 59.33 66.76 | 33.33 21.95 | <8Â g/dl | 17 20 | Transolog Transolog | 19 21 | Regular drain Regular drain |
Cheung [18] | 2010 | UK | THA | 153 | 68.12 | 45.1 | Made by the ward doctors | 53 | Bellovac | 52 48 | Regular drain No drain |
Horstmann [32] | 2012 | Netherland | THA | 100 | 68.8 | 27 | ASA classification | 50 | Bellovac | 50 | No drain |
Kleinert [33] | 2012 | Switzerland | THA | 120 | 65.33 | 49.17 | <8Â g/dl | 40 | Bellovac | 40 40 | Regular drain No drain |
Sarkanovic [7] | 2013 | Serbia | TKA | 112 | 66.5 | 23.21 | <8.5Â g/dl | 55 | Cell Saver | 57 | Regular drain |
Horstmann [24] | 2014 | Netherland | TKA | 115 | 68.48 | 29.57 | ASA classification | 59 | Bellovac | 56 | No drain |
Thomassen [23] | 2014 | Netherland | TKA THA | 165 219 | 68.9 | 25.58 | <8Â g/dl | 78 116 | Bellovac Bellovac | 87 103 | No drain No drain |
Teetzmann [22] | 2014 | Norway | THA | 161 | 73 | 37.94 | clinical judgement | 74 | Sangvia | 87 | No drain |