Management of perioperative anemia in Major orthopedic surgery: practical approach Nadia Rosencher Anesthesiology and Intensive care department Cochin Hospital, Paris Descartes University 75014 Paris France Belgrade 2011 Disclosure 1. 2. 3. 4. 5. 6. 7. Belgrade 2011 Abbott, Air Liquide Astra-Zeneca, Bayer, Bristol Meyer Squibb, B-Braun, Boëringher-Ingelheim, 8. General Electric, 9. Glaxo-Smith-Klein, 10. Janssen 11. LFB 12. Pfizer 13. Sanofi-Aventis 14. Vifor Perioperative anemia Outline 1. Incidence and cause of preoperative anemia and related mortality 2. International Recommendations : NATA 3. Preoperative assessment: IRON and ESA 4. Postoperative anemia and mortality 5. How to managed Postoperative anemia: 6. Kinetic of bleeding and anticipation 7. Conclusion Belgrade 2011 Incidence of Preoperative Anemia in Major orthopedic Surgery Author/year Surgery n incidence Saleh 2007 Basora 2006 THR/TKR 1142 THR/TKR 218 20% 39% THR 225 THR/TKR 2646 HF HF HF 844 15% 30% 44% 550 46% 395 46% Myers 2004 Rosencher 2003 Su 2004 Halm 2004 Gruson 2002 Belgrade 2011 Prevalence of preoperative anaemia and haematinic deficiencies in patients scheduled for elective orthopaedic surgery (Elvira Bisbe et al, TATM 2008;10:166-73) Type of Anemia With nutrient deficiency Iron only Folate only B12 only Iron with folate or B12 or both n( %) 20/65 12/65 (16.9) 1/65 (1.5) 4/65 (6.1%) 3/65 (4.6) Without nutrient deficiency Renal insufficiency only 2/65 (3.1) ACI, no renal insufficiency 19/65 (29) Renal insufficiency and ACI 6/65 (9.3) UA Belgrade 2011 16/65 (24.6) 30.7% Preoperative Anemia kills me Belgrade 2011 Preoperative Hematocrit Levels and Postoperative Outcomes in Older Patients Undergoing Noncardiac Surgery Wu WC et al, JAMA 2007; 297:2481‒8 • Retrospective cohort study using the VA National Surgical Quality Improvement Program database. • 310,311 veterans aged ≥ 65 years who underwent major noncardiac surgery between 1997 and 2004. • Increased 30-day mortality in patients with preoperative Hct < 39% (Hb < 13 g/dL). Belgrade 2011 WC Wu et al. JAMA 2007;297:2481-8 Belgrade 2011 Belgrade 2011 Belgrade 2011 Preoperative anaemia and postoperative outcomes in non-cardiac surgery: a retrospective cohort study Khaled M Musallam et al, • The Lancet Volume 378, Issue 9800, 15-21 October 2011, Pages 1362-1363 We obtained data for 227 425 patients, of whom 69 229 (30.44%) had preoperative anaemia. • postoperative mortality at 30 days was higher in patients with anaemia than in those without anaemia (odds ratio [OR] 1.42,; this difference was consistent in mild anaemia 1.41, and moderate-to-severe anaemia (1.44, ) Composite postoperative • morbidity at 30 days was also higher in patients with anaemia than in those without anaemia When compared with patients without anaemia or a defined risk factor, patients with anaemia and most risk factors had a higher adjusted OR for 30-day mortality and morbidity than did patients with either anaemia or the risk factor alone. • Conclusion : Preoperative anaemia, even to a mild degree, is independently associated with an increased risk of 30-day morbidity and mortality in patients undergoing major non-cardiac surgery Belgrade 2011 Preoperative anaemia and postoperative outcomes in noncardiac surgery: a retrospective cohort study Khaled M Musallam et al, The Lancet Volume 378, Issue 9800, 15-21 October 2011, Pages 1362-1363 30-day composite morbidity, by anaemia and risk factor status Belgrade 2011 Preoperative anaemia and postoperative outcomes in non-cardiac surgery: a retrospective cohort study Khaled M Musallam et al, The Lancet Volume 378, Issue 9800, 15-21 October 2011, Pages 1362-1363 • Figure 1. 30-day mortality, by anaemia and risk factor status Belgrade 2011 Perioperative anemia Outline 1. Incidence and cause of preoperative anemia and related mortality 2.International Recommendations : NATA 3. Preoperative assessment: IRON and ESA 4. Postoperative anaemia and mortality 5. How to managed Postoperative anemia: 6. Kinetic of bleeding and anticipation 7. Conclusion Belgrade 2011 Detection, Evaluation and Management of Preoperative Anemia in the Elective Orthopedic Surgical Patient—NATA Guidelines Multidisciplinary panel : 3 orthopedists , 3 hematologists, 6 anesthesiologists, 1 epidemiologist And society representation : European Federation of National Associations of Orthopaedics and Traumatology (EFORT) : G. Benoni Spine Society of Europe (SSE) : M. Szpalski European Society of Anaesthesiology (ESA) Y. Ozier TL Goodnough Br J Anaesth. 2011 Jan;106(1):13-22 Belgrade 2011 Recommendations―Detection of Anemia • Recommendation 1: We recommend that elective surgical patients have a Hb level determination as close to 28 days before the scheduled surgical procedure (Grade 1A). • Recommendation 2: We suggest that the patient’s target Hb before elective surgery be within the normal range (normal female ≥ 12 g/dL, normal male ≥ 13 g/dL), according to WHO criteria (Grade 2C). TL Goodnough Br J Anaesth. 2011 Jan;106(1):13-22 Belgrade 2011 Recommendations―Evaluation of Anemia • Recommendation 3: We recommend that laboratory testing take place to further evaluate for nutritional deficiencies, chronic renal insufficiency, and/or chronic inflammatory disease (Grade 1C). • Recommendation 4: We recommend that nutritional deficiencies be treated before surgery (Grade 1C). • Recommendation 5: We suggest that erythropoiesisstimulating agent (ESA) therapy be used for anemic patients in whom nutritional deficiencies have been ruled out and/or corrected. (Grade 2A). TL Goodnough Br J Anaesth. 2011 Jan;106(1):13-22 Belgrade 2011 Hb < 120 g/L for females Hb < 130 g/L for males Evaluation necessary Iron status? Ferritin < 30 μg/L and/or TSAT < 15–20% Ferritin 30–70 μg/L and/or TSAT > 20% Ferritin > 70 μg/L and/or TSAT > 20% Serum creatinine Glumerular filtration rate Low Rule out iron deficiency Inflammation/ chronic disease Normal Normal Vitamin B12 and/or folic acid Low Chronic kidney disease (CKD) Iron deficiency Referral to gastroenterologist to rule out malignancy Iron therapy 1) Oral iron in divided doses 2) IV iron if patient cannot tolerate oral iron, intestinal absorption problems, or short timeline Belgrade 2011 Referral to nephrologist No response Anemia of chronic disease Erythropoiesisstimulating agent therapy Folic acid and/or Vitamin B12 therapy Perioperative anemia Outline 1. Incidence and cause of preoperative anemia and related mortality 2. International Recommendations : NATA 3.Preoperative assessment: ESA and Iron 4. Postoperative anaemia and mortality 5. How to managed Postoperative anemia: 6. Kinetic of bleeding and anticipation 7. Conclusion Belgrade 2011 In practice, according to size of RBC Microcytic MCV<80fl Normocytic MCV 80-96 Macrocytic MCV >96 Belgrade 2011 1. 2. 3. Fe deficiency Hemoglobinopathy Anemia of chronic disease (ACD) 1. 2. 3. ACD Acute blood loss Anaemia of renal disease 1. 2. 3. 4. B12, FA deficiency Chronic liver disease myelodysplasia Chemotherapy IV Iron if inflammatory disease + ESA Referral to gynecologist and gastroenterologist Iron (IV) + ESA Folic acid and VitB12 therapy +ESA + Iron In preoperative assessment I need as laboratory testing • • • • Belgrade 2011 Hb level and size of RBC + Platelets Creatinine serum and creat clearance CRP (inflammatory disease ?) Iron status : Transferrin + Tsat To sum up: at preoperative assessment 1. To increase Hb in this short delay (28 days), I need ESA 2. Because of ESA therapy, I need Iron 3. The choice of IV Iron is based on CRP, if oral is not tolerated, if drug interaction (thyroxin…), if renal impairment.. 4. In case of macrocytic RBC, I add Folic acid and Vitamin B12 Belgrade 2011 N. Rosencher Transfusion. 2003 Apr;43(4):459-69 Knee and Hip Replacements 100 % 90% 80% 70% 60% 50% 40% Abnormal bleeding or female less than 50kg 30% 20% 10% Baseline Hb g /dL Belgrade 2011 Men Women 16,0 15,0 14,0 13,0 12,0 11,0 10,0 9,0 0% 8,0 Probability of Transfusion Probability of Allogeneic-Only Transfusion Preoperative EPO : « a first class technique….. » If Hb increases before surgical procedure: • Blood loss tolerated without any transfusion increases and thus we avoid any transfusion (autologous and allogeneic) • We can solve all the problems of the controversy or close the debate about 1. 2. 3. 4. 1. Blood shortage Belgrade 2011 Residual an unknown emergent risk Immuno-modulatory effect Mistransfusion, bacterial contamination Hepatitis, VIH…. Why do we always need to associate Iron to ESA 1. Erythropoiesis stimulation increases need of Iron, 2. Iron fixed to transferrin disappears rapidly and Iron from ferritin serum should be mobilized 3. Mobilisation is done very slowly even if ferritin serum level is normal 4. Iron should be quickly delivered to respond to demand of erythropoiesis stimulated by EPO Belgrade 2011 Iron deficiency leads to bad response to ESA • If anemia cannot be corrected by ESA, it means that Iron is deficient or not well absorbed (inflammatory disease…) • Functional Iron deficiency = decrease of TSAT < 20% Belgrade 2011 In practice : How to prescribe Iron in preoperative period ? • If oral 200 à 300 mg/day • 1 h before meals • If IV between 500mg /each injection of EPO, according to Iron status • Drug interactions with oral Iron are not well known (Thyroxin, cycline, fluoroquinolone, diphosphonates…) Belgrade 2011 Combined effect of Delay and dose rHuEPOa 2400 UI / kg started 3 weeks before surgery. Hb level (g/dl) (mean) 14 13 12 11 10 9 8 Belgrade 2011 rHuEPOa 4500 UI / kg during 15 days. Goldberg M. Semin Hematol 1997;34:41-47. Optimizing EPO use 1. Iron therapy added (200 to 300 mg/day if oral medication) and 200-500mg/week if IV 2. Start first injection between 21 and 30 days before surgery 3. Number of EPO injections should be related to Hb baseline • 4 injections if Hb =10g/dl Hb level is • 3 injections if Hb =11g/dl accurate only if • 2 injections if Hb =12g/dl case of • 1 injection if Hb = 13g/dl normovolemia N Rosencher et al./transfusion clinique et biologique 15 (2008) 294-302 Belgrade 2011 Risks associated with EPO meta-analysis De Andrade JR, 1999,Orthopedics, vol 22, p:113-118 8% 8% 7,40% 7% 6% 5,20% 4,80% 5% Eprex 4% 3,20% Placebo 3% 2,30% 2% 1% 0% 0,30% total DVT other 0,40% death EPO Contraindications • • • • Recent stroke Recent MI Non controlled Hypertension All arterial thrombosis or risk of thrombosis event • Iron deficiency Belgrade 2011 Take this message home 1. • • • EPO efficacy increases with dose (600 UI /kg/week) delay between first injection and surgery Iron therapy is necessary :200mg/Day (if oral) and 500mg/week if IV 2. EPO is indicated if 10 ≤ Hb baseline ≤ 13g/dl 3. Contraindications are all recent artery diseases (MI, Stroke, severe HyperTension, arteritis…..) 4. Suggestion : The number of injections should be related to Hb baseline N Rosencher et al./transfusion clinique et biologique 15 (2008) 294-302 Belgrade 2011 How to use IV IRON 1. In postoperative period, because inflammatory disease: IV Iron : 500 and 1000 mg in 15 minutes but no more than 15mg/kg/week 2. In preoperative period, in case of inflammatory disease or renal impairment 3. If EPO: 500mg/injection – Belgrade 2011 Or according to Hb baseline (cf table) Perioperative anemia Outline 1. Incidence and cause of preoperative anemia and related mortality 2. International Recommendations : NATA 3. Preoperative assessment: IRON and ESA 4.Postoperative anaemia and mortality 5. How to managed Postoperative anaemia: 6. Kinetic of bleeding and anticipation 7. Conclusion Belgrade 2011 How Anemia kills me? Belgrade 2011 Frequency of myocardial infarction and death following primary THR or TKR US retrospective analysis; N = 10,244 Average mortality = 0.5% after 1 month MI % Death % 2.5 3 Men Men Women Women 2.0 2 1.5 1.0 1 0.5 0 0.0 < 49 50-59 60-69 Age (years) Belgrade 2011 70-79 > 80 < 49 50-59 60-69 Age (years) Mantilla CB, et al. Anesthesiology. 2002;96:1140-1146. 70-79 > 80 Causes of death in the Norway register Mortality during the first 60 days after surgery, 1987-1995 (n = 45,767) Cause of death deathsa Number of Mortality/1000 THRa All deaths before 31 December 1995 360 7.87 All vascular causes of death 274 5.99 Ischemic heart disease 145 3.17 PE and infarction 42 0.92 Cerebrovascular disease 55 1.20 DVT 13 0.28 169 3.69 Bleeding 51 1.11 Sudden death (mors subita) 32 0.70 All non-vascular causes of death 67 1.46 Thromboembolic complications aCauses of death according to the death record. The sum of the cause-specific mortality rates therefore exceeds the all-cause mortality. Belgrade 2011 Stein A L, Acta Orthop Scand 2002; 73 (4): 392–399 POISE study P.J. Devereaux et al Ann Intern Med. 2011;154:523-528. 1. • • Belgrade 2011 Within 30 days of random assignment, 415 patients (5.0%) had a perioperative MI. Most MIs (74.1%) occurred within 48 hours of surgery; 65.3% of patients did not experience ischemic symptoms. The 30-day mortality rate was 11.6% (48 of 415 patients) among patients who had a perioperative MI and 2.2% (178 of 7936 patients) among those who did not (P 0.001). Among patients with a perioperative MI, mortality rates were elevated and similar between those with (9.7%; adjusted odds ratio, 4.76 [95% CI, 2.68 to 8.43]) and without (12.5%; adjusted odds ratio, 4.00 [CI, 2.65 to 6.06]) ischemic symptoms Independent Predictors of Perioperative MI. Devereaux P et al. Ann Intern Med 2011;154:523-528 ©2011 by American College of Physicians Belgrade 2011 In THR and TKR, vast majority of bleeding events occur peri-operatively bleeding events occurred on the day of surgery1 DVT/PE Bleeding Incidence THR/TKR trial comparing a ximelagatran/melagtran regime and enoxaparin 40 mg, both regimens being initiated preoperatively: overall, 77% of severe Surgery Time 1. Eriksson et al. J Thromb Haemost 2003;1:2490-6 Belgrade 2011 Major bleeding in VTE prevention trials is a strong predictor of mortality 8 Rate (%) In VTE prevention trials in surgical and medical patients, major bleeds increased the risk of death by 7-fold OR: 7.0 (95% CI: 4.6 to 10.5; p<0.001)* 8.6% 6 4 2 0 1.7% No major bleed (N=12,771) Major bleed (N=314) *Adjusted for baseline predictors and propensity for bleeding Eikelboom et al. Circulation 2009;120:2006-11. Belgrade 2011 Mechanism’s tree Among 6 Millions Anaesthesia/year : deaths totally or partially related to anaesthesia 419 respiratory centrale médicament. VAS bronche obstructif trachée voies aériennes accès impossible infection neurologic poumons obstructif rythme ciment inhalation cardiac cardiaque cardiolologic choc Choc cardiogénique métabolique PE rythme A. Lienhart…Anaesthesiology V105, n°6, dec 2006 Belgrade 2011 vascul vasculaire infarctus M.I. hypoxia relative hypovolemia real hypovolémie Hypovolemia vraie sepsis anemia anémie 39 hemmorhage hémorragie 49 allergie sympath. GA RA Perioperative anemia Outline 1. Incidence and cause of preoperative anemia and related mortality 2. International Recommendations : NATA 3. Preoperative assessment: IRON and ESA 4. Postoperative anaemia and mortality 5.How to decrease Postoperative anaemia: 6. Kinetic of bleeding and anticipation 7. Conclusion Belgrade 2011 Antifibrinolytics : Mechanism of action Activator FIBRINOLYSIS Belgrade 2011 Plasminogene Fibrin Antifibrinolytics : Mechanism of action Activator FIBRINOLYSIS Belgrade 2011 Plasminogene Fibrin Interruption of sites binding with LYSINE when? Which dose? How long? Risks? Belgrade 2011 Tranexamic Acid reduces hemorrhage by inhibition of fibrinolysis activities of plasmine:pharmacokinetic No sign of overdose reported because of very wide therapeutic window • Half life = 3 hours • Renal excretion: delay between 2 injections has to be increased if moderate Renal Impairment (30 ml/min<creatinin clearance <60ml/min) • Maximum concentration is reached immediately after perfusion (at least 30min to avoid nausea) Belgrade 2011 Allogeneic Transfusion RBC THR+TKR Tranexamic Ac 20 studies N=1096 Year Hiippala S Benoni G Hiippala S Jansen A.J Benoni G Ellis M Benoni G Tanaka N Engel J.M Veien M Husted H Good L Zohar E Lemay E Johansson T 15 studies NTT = 3 Belgrade 2011 1995 1996 1997 1999 2000 2001 2001 2001 2001 2002 2003 2003 2004 2004 2005 N -0.50 0.00 +0.50 Différence of Risk 28 86 77 42 39 20 40 99 24 30 40 51 60 39 110 -26% [-54% à +2%] -37% [-56% à -18%] -46% [-64% à -28%] -52% [-77% à -28%] -33% [-63% à -4%] -60% [-94% à -26%] -20% [-48% à +8%] -34% [-46% à -22%] -23% [-49% à +3%] -13% [-32% à +7%] -25% [-50% à 0%] -47% [-70% à -24%] -48% [-71% à -24%] -40% [-63% à -17%] -26% [-44% à -9%] 776 Tranexamic Acid -35% [-40% à -29%] control P <0.01 modèle fixe test d’hétérogénéité p=0.27 P. Zufferey Anesthesiology. 2006;105:1034-46 Allogeneic Transfusion RBC Tranexamic Acid co variable analysis -0,50 0,00 +0,50 Risk Difference design open double blind surgery THR TKR Total dose < 30 mg/kg 30 mg/kg bolus one bolus > Many bolus Tranexamic Acid Belgrade 2011 Heterogeneicity test Between subgroups -30% [-43% to –18%] -36% [-42% to –29%] p=0.45 -29% [-39% to -19%] -37% [-43% to -30%] p=0.21 -30% [-37% to -24%] -49% [-61% to -38%] p<0.01 -24% [-35% to -13%] -38% [-44% to -31%] p=0.04 control P. Zufferey Anesthesiology. 2006;105:1034-46 Tranexamic Ac and arteriel risk Antifibrinolytic in orthopedic surgery Aprotinine n=723 1 acute leg ischaemia 1 Acute Coronary Syndrome Aminocaproic Ac n=76 3 Acute Coronary Syndromes Tranexamic Ac n=575 1 MI Placebo n=1057 1 MI + 1 stroke Zufferey P Anesthesiology 2006: 105; 1034-46 Belgrade 2011 adverse events Cardiologic surgery n=1374 n=883 n=882 n=1295 No adverse vascular effects for TXA Mangano DT N Engl J Med 2006: 354; 353-65 Belgrade 2011 Contrindications of Tranexamic Acid • • • • • Severe Hypertension Arteritis, or severe arterial disease MI, Stroke carotid Stenosis Severe Renal Insufficiency (creatinine clearance <30ml/min) • Pulmonary Embolism • Epilepsy Belgrade 2011 Duration of postoperative fibrinolysis in THR 6,000 THR MedPTH 5,000 MedPTH- MedPTH-AT 4,000 3,000 2,000 1,000 0 DDE préop Belgrade 2011 DDE-H0 DDE-H6 DDE-H18 DDE-H24 Blanié A. SFAR 2011 Duration of postoperative fibrinolysis in TKR 14,000 12,000 TKA Med PTG 10,000 TKA-TXA 8,000 6,000 4,000 2,000 0 DDE préop Belgrade 2011 DDE-H0 DDE-H6 DDE-H18 DDE-H24 Blanié A. SFAR 2011 Now our protocol of TA Dilution of 1g/100ml physiologic serum / 30 minutes, because of risk of nausea TKR or Revision TKR 1. 1g (15mg/kg) 15 min before 1. deflating tourniquet 2. 2. + 1g (15mg/kg) H + 3 3. 1g (15mg/kg) every 4 or 5 3. hours during the first night THR or Revision THR 1g (15mg/kg) : 15 min before incision H + 1: 1g (15mg/kg) /1h during 60 min until end of surgery (RTHR) 1g (15mg/kg) every 4 or 5 hours during the first night This procedure is done, but not validated by a important study N Rosencher et al./transfusion clinique et biologique 15 (2008) 294-302 Belgrade 2011 PTG : acide tranexamique vs placebo PTG : Récupération périop inutile si acide tranexamique Belgrade 2011 Belgrade 2011 Effects of tranexamic acid on death, vascular occlusive events, and blood transfusion in trauma patients with significant haemorrhage a randomised, placebo-controlled trial CRASH-2 trial collaborators, Lancet 2010; 376: 23–32 • Méthode : 274 centres (44 pays) = 20201 patients à risque hémorragique dans les premieres heures • Randomisation : Ac Tranex 1g/30min puis 1 g 8h après vs placebo Belgrade 2011 TXA. n=10 060 placebo n=10 067 mortality 14.5% 16% 0.91 (0.85-0.97) p<0.01 Any vasc Thrombosis 1.7% 2.0% 0.84 (0.68-1.02) p=0.08 MI 0.3% 0.5% 0.64 (0.42-0.97) p=0.04 Stroke PE 0.6% 0.7% 0.7% 0.7% 0.86 (0.61-1.23) p=0.42 1.01 (0.73-1.41) p=0.93 DVT 0.4% 0.4% 0.98 RR (IC95%) (0.63-1.51) p=0.91 No adverse vascular events with TXA Belgrade 2011 CRASH-2 trial collaborators, Lancet 2010; 376: 23– 32 Take this message Home 1. TA reduces bleeding and transfusion after THR, TKR and spinal surgery 2. Important doses (≥30mg.kg-1 …) and many bolus are more efficient 3. Good safety, but no important study (>1000 patients) Nausea are possible if perfusion is too fast (less than 30 min) 4. Cost /effective (1€/1g) Belgrade 2011 How to explain the difference between registers and randomized studies? Belgrade 2011 Belgrade 2011 Focus study Belgrade 2011 Hb= 9g/dl throughout the study in restrictive group Belgrade 2011 Complications nécessitant transfusion 10% tachycardies+I. Cardiaques Belgrade 2011 Threshold Haemoglobin Levels and the Prognosis of Stable Coronary Disease: Two New Cohorts and a Systematic Review and Meta-Analysis 20,131 people with a new diagnosis of stable angina and no previous acute coronary syndrome, and 14,171 people with first MI who survived for at least 7 days were followed up for a mean of 3.2 years Conclusions: There is an association between low haemoglobin concentration and increased mortality. A large proportion of patients with coronary disease have haemoglobin concentrations below the thresholds of risk defined here. A D. Shah PLoS Medicine | www.plosmedicine.org 2011 | Vol 8 | Issue 5 Belgrade 2011 How can we explain that ? [Hb] (g/dl) Delay in Blood supplying Prescription Belgrade 2011 Transfusion Trigger Time (min) Perioperative anemia Outline 1. Incidence and cause of preoperative anemia and related mortality 2. International Recommendations : NATA 3. Preoperative assessment: IRON and ESA 4. Postoperative anaemia and mortality 5.How to decrease Postoperative anaemia: 6. Kinetic of bleeding and anticipation 7. Conclusion Belgrade 2011 Postoperative drop of Hemoglobin level after Knee and Hip Replacement : between recovery room discharge and on morning of the day one TRANSFUSION DE GLOBULES ROUGES HOMOLOGUES : PRODUITS, INDICATIONS, ALTERNATIVES RECOMMANDATIONS Août 2002 « transfusion has to be adapted to kinetic of bleeding to maintain [Hb] level threshold” Hb level has to be monitored every 2H during first night or anticipation if kinetic of bleeding is known Variation of d’Hb (g.dL-1) level 3 2 1 TKR THR 0 -1 -2 -3 -4 -5 Recovery room and D+1 Before using Tranexamic Acid drop is 2.1 ± 1.5 g/dl And with Tranexamic acid drop of Hb is only 1.2 ±1.1g/dl G. de Saint Maurice SFAR 2003 Belgrade 2011 Anemia + bleeding postoperative preoperative Cardiovascular and ischemic events death Belgrade 2011 Rehabilitation is difficult Transfusion ± delay Conclusions • Anemia should be viewed as a serious and treatable medical condition rather than as an abnormal laboratory value. • Preoperative anemia management in elective orthopedic surgery patients improves outcomes. • New paradigm : no anemia, no transfusion and mortality should decrease • Moreover, if you see patient 1 month before elective surgery, you don’t need to postpone surgery (stopping VKA, clopidogrel…..) Belgrade 2011