Patient Blood Management: Exploring the Options
Transcript of Patient Blood Management: Exploring the Options
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Patient Blood Management: Exploring the Options
Heather E Mingo RN SNPHeather E. Mingo RN, SNP
Perioperative Blood Management Services
November 4, 2011
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Conflict of InterestConflict of Interest
• I have no financial relationships or
i l t ith i d t t di linvolvement with industry to disclose.
• I will not discuss off label use and/orI will not discuss off label use and/or
investigational use in my presentation.
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ObjectivesObjectives
Define blood management and discuss its– Define blood management and discuss its importance
Educate about alternative strategies to– Educate about alternative strategies to blood transfusion
Di th f th J h h’ Wit– Discuss the care of the Jehovah’s Witness
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Patient Blood Management (PBM)Patient Blood Management (PBM)
The timely application of evidence-based medical and surgical concepts designed to maintainand surgical concepts designed to maintain hemoglobin concentration, optimize hemostasis and minimize blood loss in an effort to improve patient p poutcomes.
SABM, 2010
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Why Blood Management?Why Blood Management?
• Facilitate transfusion avoidance andFacilitate transfusion avoidance and optimize blood management in elective surgical patientssurgical patients • Enhance transfusion practice outside of blood bankblood bank • Interact with physicians, nurses and patients to promote blood management &patients to promote blood management & alternatives to transfusion
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Blood Conservation at HHS
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How is Blood Management Accomplished?How is Blood Management Accomplished?Identify at risk population
Krever recommendations:
• Consider transfusion alternatives for elective surgical patients (>10% risk of transfusion)
Why perioperative patients?Why perioperative patients?
• 50‐70% of blood products used in hospitals are used in the perioperative setting (Hebert et al, 2004)
• Potential exists to modify some predictors of transfusion in elective surgical patients
• Pre‐op Hgb Blood lossPre op Hgb, Blood loss
• Wide variation in transfusion practice for procedures
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Why is the Optimization of Preop H b i t t?Hgb important?
• Preop Hgb is one of the most important• Preop Hgb is one of the most important predictors of the need for blood transfusion in patients undergoing elective surgery1patients undergoing elective surgery .
•Optimization of preop Hgb reduces the need for•Optimization of preop Hgb reduces the need for transfusion.
1. Buckwalter JA. Orthopedics 1999;22 (Suppl 1):s103-s104.
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How is Blood Management Accomplished?
Pre-op Hgb optimization:
4 6 week lead time for assessment screening and appropriate4-6 week lead time for assessment, screening and appropriate interventions:
• Careful attention to patient medical history, pre op meds
ASA, Clopidrogel (Plavix), NSAIDs, herbal supplements
• Correction of nutritional anemiaIron therapy – dietary advice, supplements - Vit B12, FolateIron therapy dietary advice, supplements Vit B12, Folate
• Pre operative autologous donation (PAD)
• Erythropoietin therapy
• ? Delay surgery
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Dietary Sources of IronIron Dietary GoalsIron Dietary Goals1.Eat at least one food high in iron at each meal.2.Vitamin C helps your body absorb more iron. Try to eat Vitamin C-rich foods: orange juice, tomatoes, broccoli, potatoes, citrus fruits and juices, and dark green leafy vegetables.3. Coffee and tea decrease iron absorption. Limit consumption of coffee and tea.
BestLi
3. Coffee and tea decrease iron absorption. Limit consumption of coffee and tea.4. Use cast iron cookware.5. Eat more iron-fortified and enriched grain products.
GoodLean meat and turkey
FairEgg yolk
LiverHeart KidneyCream of wheatC l
Lean meat and turkeyTuna & mackerelDried apricots, prunes, fig, RaisinsLiverwurstTofu
gg yBread (enriched)Cereals (enriched)BlackberriesStrawberries
Cereals: Farina (enriched)Cream of Wheat, Product 19, Grape nuts
TofuBeans (ex: lentils lima, chickpeas)Spinach, boiledLima beansNuts (cashews Brazil walnuts)
WatermelonBlack-eyed peasGreen peas Sunflower seedsGrape nuts,
TotalNuts (cashews, Brazil, walnuts)Blackstrap molassesShrimp, Oysters & clamsAnchovies
Peanut butterKale Collards
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Iron SupplementsOral Ferrous Gluconate 35 mggFerrous Sulfate 60 mgFerrous Fumarate 100 mg
IM Jectofer – Iron SorbitolDexIron/Infufer Iron DextranDexIron/Infufer Iron Dextran
IV DexIron/Infufer Iron DextranDexIron/Infufer Iron DextranVenofer – Iron Sucrose
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PAD ProgramPAD Program
• A decade ago, major modality for many centres
• >50% of collected units were routinely wasted50% of collected units were routinely wasted
• **Patients become anemic pre-operatively
OR l l h i d PAD bl d d i• OR slates constantly changing and PAD blood outdating
• Good for 42 days only and old blood is not good for your ipatient
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EPREX* ErythropoietinEPREX* - Erythropoietin
•Erythropoietin is a naturally occurring hormone produced primarily in the kidney and is the principal regulator of red blood cell productionprincipal regulator of red blood cell production
•EPREX* is a recombinant humanEPREX is a recombinant human erythropoietin that contains the same amino acid sequence of isolated natural erythropoietinq y p
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Epoetin alfa in Surgery Patientsp g y
Epoetin alfa is indicated for:Epoetin alfa is indicated for:
• the treatment of anemic patients (Hgb >100 to 130 g/L) scheduled to undergo elective, noncardiac, nonvascular surgery to reduce the need for allogeneic blood transfusions.
• patients at high risk for perioperative transfusions• patients at high risk for perioperative transfusions with significant, anticipated blood loss.
Epoetin alfa monograph
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Iron with ESA UseIron with ESA Use• “When erythropoietin (epoetins or darbepoetin) is used to
treat the anemias of chronic renal failure, cancer chemotherapy, inflammatory bowel diseases, HIV infection and rheumatoid arthritis, functional iron deficiency rapidly , y p yensues unless individuals are iron-overloaded from prior transfusions. Therefore, iron therapy is essential when using erythropoietin to maximize erythropoiesis byusing erythropoietin to maximize erythropoiesis by avoiding absolute and functional iron deficiency.”
Eschbach JW, 2005, Best Pract Res Clin Haematol
1515
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Intraoperative ManagementManipulation of Losses Pharmacologic• Cell salvage Antifibrinolytics
A t N l i DDAVP• Acute Normovolemic DDAVPHemodilution fVIIa
• Controlled Hypotension Octaplex• Hypervolemic Hemodilution Fibrinogen•Selective Embolization
OtherAppropriate Transfusion Trigger, Normothermia, Surgical technique, Regional anesthetic, Tourniquets, Positioning, Fibrin q , g , q , g,Sealants, etc
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Cell saver‐ collection, processing, brief storage, and IV return of shed blood
Downsides:-Cost-Availability-CancerContaminated field-Contaminated field
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Acute Normovolemic Hemodilution (ANH)Hemodilution (ANH)•Removal of 1, 2 or more units of blood before surgery begins•Phlebotomized blood is replaced•Phlebotomized blood is replaced with IV fluid•Patient’s blood is stored until the end of surgery then reinfusedend of surgery then reinfused
Downsides:-Time-?evidence-Case selection
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Platelet Glue
• Platelet rich plasma or platelet glue is the ‘latest’ innovation. Was first described in 1972 & used in cardiac surgery since 1990s. Recently in dental, oral and plastic surgeryand plastic surgery
• Has 2-4x more platelets than plasma. The platelets provide a wealth of healing & growth factorsfactors.
•Can be collected and produced by perfusionists or trained lab/nursing personnel.
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Anti-fibrinolyticsAnti fibrinolytics• Traditionally used in cardiac surgery due to blood loss
but now being incorporated into orthopedic surgery
• Inhibits fibrinolysis by blocking lysine-binding sites of l i fib iplasminogen to fibrin.
• Tranexamic Acid (TEA)
• In TEA trials, a significant 48% relative risk reduction in allogeneic transfusion.
Ti i f d i i i i i f d• Timing of administration is a question of current study
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Colloids• Synthetic starch colloids widely used for
ColloidsSy e c s a c co o ds de y used oplasma volume expansion and are highly effectiveeffective.
• Primarily excreted by the kidney
• Currently available:– Voluven (Fresenius Kabi)( )
– Pentaspan (Bristol Meyers Squibb)
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A word about Albumin…
• Albumin is NOT superior to crystalloid for treatment• Albumin is NOT superior to crystalloid for treatment of hypovolemia.
• Albumin is a blood product and it is not ‘matched’ and• Albumin is a blood product and it is not matched and the risk of prion disease transmission exists.
• COSTS: 5% albumin $ 117COSTS: 5% albumin $ 117
Voluven/ Pentaspan $ 56
Saline $ 2Saline $ 2
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Postoperative ManagementPostoperative Management
Assessment and tolerance of anemia–transfusion triggers
• Optimal fluid and volume management- Some symptoms attributed to anemia, may be
volume-related (not oxygen carrying capacity)• Iron supplementation• Iron supplementation• Antifibrinolytics• Maintenance of normothermia Maintenance of normothermia• Scrutinized use of phlebotomies
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Iatrogenic AnemiaIatrogenic Anemia
•Anemia caused by hospitalization procedures not by
patient illness
•Diagnostic phlebotomy major cause
•Studies record daily blood losses of 50-90ml!y
•Accounts for 30-50% of transfusions in ICU
Corwin et al. Chest 1995
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Preventing Iatrogenic AnemiaPreventing Iatrogenic Anemia
– Reduce blood sample size– Reduce blood sample size
(point of care)
Return dead space blood loss– Return dead space blood loss
– Reduce the # of indwelling
th t
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catheters
– Eliminate “standing orders”
f bl dfor blood tests
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Care of the Jehovah’s WitnessCare of the Jehovah s Witness
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Patient BackgroundPatient Background
J h h’ Wit Ch i ti R li i
gg
Jehovah’s Witnesses - a Christian Religion
6 million active followers world wide
All follow a strict religious conviction against the acceptance of blood or blood productsp p
Based on a strict Bible interpretation that blood is sacred and represents life of the organismis sacred and represents life of the organism
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ONCE REMOVEDONCE REMOVED FROM THE BODYFROM THE BODY, BLOOD CANNOT BEBLOOD CANNOT BE REPLACED!!!REPLACED!!!
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• Allogeneic transfusion and Autologous Donation- non negotiablenon negotiable
• Will accept:• Non human volume expanders• Intraoperative cell salvage*• Acute normovolemic hemodilution*cute o o o e c e od ut o• Bypass and extra corporeal circulation*• All new surgical methods for hemostasis• Albumin**• Albumin**• Immune globulin**• “Hemophiliac preparations”*** Certain criteria must be met for acceptance** Area of “personal decision”
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SUMMARYSUMMARYMedical ethics systems apply to all patients
Treatment of the J.W. patient should be the same as all other patients seeking medical care with one exception
‘Access to ‘bloodless’ care should be available as should chemotherapy or any other specialized care that is available to all patientsavailable to all patients
Legally protected and ethically sound; the patient’s rights to bodily self determination!to bodily self determination!
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ConclusionsE l i i l f i•Early assessment is crucial to management of preop anemia
• Anemia is prevalent in hospitalized patients and it drives RBC transfusion.• IDA and ACD are the most common in surgical populations• Iron, either oral or intravenous (IV iron) can correct anemia in
t ti tmost patients.•IV iron can increase Hgb levels by 1.5 - 2 gm/dL in 1 week
•Oral iron just takes time and patience.Oral iron just takes time and patience.
– START optimization EARLY!
•Both epo and IV iron can decrease RBC transfusion in surgical p gpatients.
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Thank youThank you
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Contact Information
QEII Health Sciences Centre
Rm. 5607 5th Floor
Halifax Infirmary site
• Phone (902) 473 3117• Phone (902) 473-3117
• Cell (902) 233-1344
• Email [email protected]