Table II.
Some recent studies on peri-operative cell salvage in total hip replacement.
| Author, year (Reference) | Study type | Patients (n) | Salvaged blood (re-infused volume) | Transfusion protocol | ABT (%) | |
|---|---|---|---|---|---|---|
| Cell salvage | Control | |||||
| Moonen, 2007 (20) | RCT | 83 | Unwashed PSB (203 mL) | Hb 8.1, 8.9 or 9.7 g/dL according to ASA | 4/35 (11.4%) | 10/48 (20.8%) |
| Smith, 2007 (32) | RCT | 158 | Unwashed PSB (252 mL) | Hb < 8 g/dL ± symptoms | 6/76 (7.9%) | 21/82 (25.6%) |
| Mirza, 2007 (33) | Observational | 218 | Unwashed PSB (200–400 mL) | Hb < 8 g/dL ± symptoms | 10/109 (9.2%) | 33/109 (30.3%) |
| Sturdee, 2007 (34) | Observational | 86 | Unwashed PSB (441 mL) | Hb < 8 g/dL | 2/43 (4.7%) | 10/43 (23.3%) |
| Trujillo, 2008 (35) | Observational | 108 | Washed Intra-op & post-op (336 mL RBC, Htc 63%) | Hb < 8 g/dL ± symptoms | 9/60 (15.0%) | 13/48 (27.1%) |
| Bridgens, 2007 (36) | Observational | 94 | Washed Intra-op (590 mL RBC) | Hb < 9 g/dL ± symptoms | 36/47 (76.6%) | 46/47 (97.9%) |
| Philips, 2006 (39) | Observational | 80 | Washed IntraOP + Tranexamic acid | Hb <7g/dL or Hb <8g/dL if cardiac disease | 20/40 (50%) | 37/40 (92.5%) |
ABT, allogeneic blood transfusion; RCT, randomised controlled trial; PSB, post-operatively salvaged blood; Intra-op, intra-operative; post-op, postoperative; ASA, American Society of Anesthesiology physical score; Hb, haemoglobin.