AIM FOR STABLE PATIENT NOT STABLE HEMOGLOBIN
DR AKSHAYA TOMAR
DEPT OF IMMUNOHEMATOLOGY AND
BLOOD TRANSFUSION
AFMC PUNE
 81% of all the trauma-related deaths occur within
the initial 24-hour period.
 Most of them are hemorrhage related
 Most (99%) of the patients receiving <10 RBC
units within the first 24 h survived, whereas only
60% of patients who received >10 RBC units
within the first 24 h survived (J OF TRAUMA 2011)
IN ADULTS PEDIATRICS
•Dec Fibrinogen synthesis
and inc degradation
•Dec propagation phase
of coagulation : thrombin
•Decreases FVII/TF
interaction
•Dec platelets count and
function
• In the past, trauma patients were given colloid or
crystalloid fluid initially.
• Blood products were administered after 2 litre of fluid
resuscitation, usually guided by laboratory results to
keep haemoglobin >10 g/dl, platelet count >50000,
and INR ≤1.5.
• Using these guidelines, blood loss continued because
of delay in laboratory turn around time and dilutional
coagulopathy.
 Recent studies with consideration of resuscitation,
and better understanding the pathophysiology of
ETIC has led to early use of RBCs, plasma, and
platelets and reduced crystalloid use.
 Administration of RBC:plasma:platelets at 1:1:1 ratio was
first proposed by the US military and subsequently
supported by military and then civilian studies.
 The rationale for the 1:1:1 ratio is that it more closely
resembles whole blood
 Retrospective review of patients receiving MT at a US
combat hospital demonstrated reduced mortality from
66% to 19% when the RBC:Plasma ratio decreased from
8:1 to 2:1.38
 randomized trial to evaluate ratios, MT patients
receive either a 1:1:1 (higher ratio) or a 2:1:1
(lower ratio) RBC: Plasma: Platelet
 Outcome studied : survival & LOHS
 More patients in 1:1:1 group achieved hemostasis
and fewer experienced death (no significant differences
in mortality at 24hrs or at 30 days)
 Improved patient outcomes when compared with
physician/lab driven protocols
 Addresses coagulopathy(Fundamental in triad of ‘DEATH’ )
 Improves communication among departments, improves
availability of blood products, reduces delay in obtaining
blood products
 MTP is a way to assure good patient care by having a
standard protocol on specific actions to take for each service
involved.
 Identifying patients at risk early is a key
difference between damage control resuscitation
and MTP driven resuscitation.
 Patients can arrive in relatively stable condition
 Non lab markers determining need for MTP
 SBP<90mm Hg
 Positive Focused abdominal sonography in trauma
 HR>120 bpm
 Liver laceration with hemorrhage
 Emergent abdominal aortic aneurysm
 Pelvic fracture with overwhelming blood loss
 Massive gastrointestinal hemorrhage
 Coronary artery bypass grafting
 Uterine rupture
 WB transfusion compared with COMPONENTS use
reduced pulmonary and tissue oedema, which
decreased the ventilation time and also allowed
closure of the abdomen with minimal delay.
 Patients who received both fresh whole blood and
component therapy had better clinical outcomes
 However, concern for transfusion transmitted
infections and TA GvHD remains
 LIMITED data
 In the majority of institutions, a single MTP is
used for both adult and pediatric patients
 Published literature showed no improvement in
overall mortality with institutional MTP when
compared to transfusion as recommended by
treating clinician
• Group O RBCs and AB plasma products should be given until the
patient’s blood type can be determined.
• Use of D-positive products in D-negative or D-unknown patients
• Thawed plasma units
• Prothrombin complex concentrate (PCC)
• Fibrinogen concentrate/CRYO
• Tranexamic acid given early in the resuscitation process (<3 h from
injury to treatment, preferably within 1 h from injury).
• When to consider rFVIIa?
 Time is important
 Group O PRBC/AB plasma can be used
(without pretransfusion testing)
 Test patient sample ASAP (for further demands)
 Helps to preserve inventory/ reduces typing
discrepancies which can occur after multi unit
transfusions
 ‘MINUS IS PLUS HERE’
 We can use of D-positive products for men and women
past childbearing age (usually >50 yr old), and after a
set number of D-negative RBC units
 Frequency of anti-D formation after transfusion of D
positive blood products to a D-negative patient is
 20% for RBCs and ,
 4% for platelets (likely lower for apheresis
platelets)
 20 min to thaw
 Many institution keep around 20 AB thawed
plasma for emergent use, shelf life 5 days
 Only 4% of the population is of AB group, hence
this approach is challenging
 Invented for congenital coagulation disorder/warfarin
reversal/active bleeding
 PCC can be three-factor, such as Profilnine SD (lacking
factor VII), or four-factor, such as Kcentra.
 No prospective RCT to prove efficacy in MTP
 Depends on institutional protocol & resource available
 Shown to reduce overall mortality related to
bleeding in Trauma/Peri- operative settings
 Generally used in conjunction with PCC
 Not yet recommended by US FDA
 There are a few studies addressing the need for
cryoprecipitate and some suggest that transfusing
with adequate amounts of FFP will obviate the
need for cryoprecipitate.
 Most studies suggest checking fibrinogen levels in
patients who continue to demonstrate
coagulopathic hemorrhage with maintenance of a
level greater than 100 mg/dL
1 unit of cryo 2500mg/150ml
1 unit of FFP 400mg/250ml
1 unit of PRBC <100mg
6 units of WB derived PC 480mg
1 unit of Apheresis derived PC 300mg
1 unit of whole blood 1000mg
 Reduce mortality in trauma patients in both civilian and
military settings, especially if given early in the
resuscitation process (<3 h from injury to treatment,
preferably within 1 h from injury)
 In the military setting, the MATTERs study, mortality in
the TXA group was lower than in the group not receiving
TXA (Military Application of Tranexamic Acid in Trauma Emergency Resuscitation)
 TA should be considered for use in bleeding trauma
patients
 No effect on total transfusion rates however
 Oxygen carrying capacity & Delivery
 Hemostasis
 Metabolic status
 Electrolytes
 No test can judge the hemostasis accurately in bleeding
patient
 Disadvantages of conventional assays:
 PT, aPTT, and fibrinogen levels, are likely not available in real-
time fashion
 Do not detect some haemostatic abnormalities, such as
platelet dysfunction, hyperfibrinolysis, and FXIII deficiency
 Do not quantify the relative contribution of pro-coagulant and
anti-coagulant factors
 Do not predict the future needs in MTP
 Short turn around time (15-20min) ; aids in decision
making at an early stage
 Detects hyperfibrinolysis (clot strength)
 It assesses all phases of coagulation even platelet
role in primary hemostasis
 It gives result in real time settings/POC such that
existing temperature and metabolic status effects
can be taken into account
 Frequent pathophysiological consequence of
severe injury as well as resuscitation
 66% of trauma patients presents in ER with
hypothermia
 Classified into
 Mild : 36°C to 34°C
 Moderate : 33.9°C to 32°C
 Severe : below 28°C
 Body temperatures less than 33°C produces
coagulopathy (functionally equivalent to factor conc. <
50%)
 Thrombin generation on platelets is reduced by 25% at
33°C and platelet adhesion was reduced by 33%
 Other clinical effects
 Cardiac dysrythmias
 Increased systemic vascular resistance
 Left shift in oxygen Hb dissociation curve
 Clinical effects not seen until pH < 7.2
 Effects :
 Decreases cardiac contractility and cardiac output
 Reduces activity of coagulation cascade
 Causes platelet dysfunction
SCORING SYSTEMS
 Clinician discretion can sometimes lead to delay
or failure of resuscitation
 Scoring helps in accurately identifying patients in
need of large volume replacement
 It also aids in restricting unnecessary transfusion
and its adverse effects also save this precious
resource for the more needy one (PBM)
 Surgical control of bleeding
 Hemodynamically stable
 Correction of acidosis and coagulopathy
 Signs of sufficient end organ perfusion
 Improvement in mental status
 Improvement in urine output
POOLED/10 UNITS
 Speed of transfusion is important during MTP
especially when exsanguination occurs at a rate
greater than transfusion
 Pressurized tubing or specialized pressurized rapid
transfusers can augment flow
 Blood and fluid warming is important as to not to
exacerbate hypothermia.
 Adjunctive techniques of warming including forced air
devices, blankets,and high operating room
temperatures
 Significant role
 Coagulation
 Platelet adhesion
 Cardiac and smooth muscle contractility
 In the setting of hemorrhagic shock
 Rapid infusion of blood products + decreased hepatic
clearance of citrate (hypoperfusion/hypothermia)
 Causes hypocalcemia
 A threshold ionized calcium [iCa] <0.9 mmol/L proposed as a
trigger for intravenous calcium
THEY DO OCCUR AND CAN BE FATAL
 Problems secondary to volume resuscitation
 Inadequate : Hypoperfusionlactic
acidosisSIRSMODSDIC
 Overzealous resuscitation : TACO / Interstitial edema
 Dilutional problems
 Dilutional coagulopathy
 Low colloidal osmotic pressure : Interstitial edema
 Problems related to stored blood
 Citrate toxicity (hypoperfused liver)
 Hyperkalemia/magnesemia(existing acidosis worsen this)
 Hypothermia
 Acidosis
 Respiratory complications : TRALI
 SIRS
 Sepsis
 Thrombotic complications
 TRIM
 Placement of refrigerators in urgent care centers and emergency
rooms
 Stocking up O blood group RBCs and AB plasma
 Maintaining target response time of <30 min once request
initiated(un crossmatched/IS X match)
 prescribe blood and blood products early to allow for delivery time
lag and thawing time (30 min for FFP)
 Collect blood sample for cross match early as colloids may
interfere with cross matching
IT INVOLVES ALLOF US
WORK AS A TEAM

Massive transfusion protocol

  • 1.
    AIM FOR STABLEPATIENT NOT STABLE HEMOGLOBIN DR AKSHAYA TOMAR DEPT OF IMMUNOHEMATOLOGY AND BLOOD TRANSFUSION AFMC PUNE
  • 2.
     81% ofall the trauma-related deaths occur within the initial 24-hour period.  Most of them are hemorrhage related  Most (99%) of the patients receiving <10 RBC units within the first 24 h survived, whereas only 60% of patients who received >10 RBC units within the first 24 h survived (J OF TRAUMA 2011)
  • 4.
  • 6.
    •Dec Fibrinogen synthesis andinc degradation •Dec propagation phase of coagulation : thrombin •Decreases FVII/TF interaction •Dec platelets count and function
  • 7.
    • In thepast, trauma patients were given colloid or crystalloid fluid initially. • Blood products were administered after 2 litre of fluid resuscitation, usually guided by laboratory results to keep haemoglobin >10 g/dl, platelet count >50000, and INR ≤1.5. • Using these guidelines, blood loss continued because of delay in laboratory turn around time and dilutional coagulopathy.
  • 8.
     Recent studieswith consideration of resuscitation, and better understanding the pathophysiology of ETIC has led to early use of RBCs, plasma, and platelets and reduced crystalloid use.
  • 9.
     Administration ofRBC:plasma:platelets at 1:1:1 ratio was first proposed by the US military and subsequently supported by military and then civilian studies.  The rationale for the 1:1:1 ratio is that it more closely resembles whole blood  Retrospective review of patients receiving MT at a US combat hospital demonstrated reduced mortality from 66% to 19% when the RBC:Plasma ratio decreased from 8:1 to 2:1.38
  • 10.
     randomized trialto evaluate ratios, MT patients receive either a 1:1:1 (higher ratio) or a 2:1:1 (lower ratio) RBC: Plasma: Platelet  Outcome studied : survival & LOHS  More patients in 1:1:1 group achieved hemostasis and fewer experienced death (no significant differences in mortality at 24hrs or at 30 days)
  • 11.
     Improved patientoutcomes when compared with physician/lab driven protocols  Addresses coagulopathy(Fundamental in triad of ‘DEATH’ )  Improves communication among departments, improves availability of blood products, reduces delay in obtaining blood products  MTP is a way to assure good patient care by having a standard protocol on specific actions to take for each service involved.
  • 14.
     Identifying patientsat risk early is a key difference between damage control resuscitation and MTP driven resuscitation.  Patients can arrive in relatively stable condition  Non lab markers determining need for MTP  SBP<90mm Hg  Positive Focused abdominal sonography in trauma  HR>120 bpm
  • 15.
     Liver lacerationwith hemorrhage  Emergent abdominal aortic aneurysm  Pelvic fracture with overwhelming blood loss  Massive gastrointestinal hemorrhage  Coronary artery bypass grafting  Uterine rupture
  • 16.
     WB transfusioncompared with COMPONENTS use reduced pulmonary and tissue oedema, which decreased the ventilation time and also allowed closure of the abdomen with minimal delay.  Patients who received both fresh whole blood and component therapy had better clinical outcomes  However, concern for transfusion transmitted infections and TA GvHD remains
  • 17.
     LIMITED data In the majority of institutions, a single MTP is used for both adult and pediatric patients  Published literature showed no improvement in overall mortality with institutional MTP when compared to transfusion as recommended by treating clinician
  • 18.
    • Group ORBCs and AB plasma products should be given until the patient’s blood type can be determined. • Use of D-positive products in D-negative or D-unknown patients • Thawed plasma units • Prothrombin complex concentrate (PCC) • Fibrinogen concentrate/CRYO • Tranexamic acid given early in the resuscitation process (<3 h from injury to treatment, preferably within 1 h from injury). • When to consider rFVIIa?
  • 19.
     Time isimportant  Group O PRBC/AB plasma can be used (without pretransfusion testing)  Test patient sample ASAP (for further demands)  Helps to preserve inventory/ reduces typing discrepancies which can occur after multi unit transfusions
  • 20.
     ‘MINUS ISPLUS HERE’  We can use of D-positive products for men and women past childbearing age (usually >50 yr old), and after a set number of D-negative RBC units  Frequency of anti-D formation after transfusion of D positive blood products to a D-negative patient is  20% for RBCs and ,  4% for platelets (likely lower for apheresis platelets)
  • 21.
     20 minto thaw  Many institution keep around 20 AB thawed plasma for emergent use, shelf life 5 days  Only 4% of the population is of AB group, hence this approach is challenging
  • 22.
     Invented forcongenital coagulation disorder/warfarin reversal/active bleeding  PCC can be three-factor, such as Profilnine SD (lacking factor VII), or four-factor, such as Kcentra.  No prospective RCT to prove efficacy in MTP  Depends on institutional protocol & resource available
  • 23.
     Shown toreduce overall mortality related to bleeding in Trauma/Peri- operative settings  Generally used in conjunction with PCC  Not yet recommended by US FDA
  • 24.
     There area few studies addressing the need for cryoprecipitate and some suggest that transfusing with adequate amounts of FFP will obviate the need for cryoprecipitate.  Most studies suggest checking fibrinogen levels in patients who continue to demonstrate coagulopathic hemorrhage with maintenance of a level greater than 100 mg/dL
  • 25.
    1 unit ofcryo 2500mg/150ml 1 unit of FFP 400mg/250ml 1 unit of PRBC <100mg 6 units of WB derived PC 480mg 1 unit of Apheresis derived PC 300mg 1 unit of whole blood 1000mg
  • 26.
     Reduce mortalityin trauma patients in both civilian and military settings, especially if given early in the resuscitation process (<3 h from injury to treatment, preferably within 1 h from injury)  In the military setting, the MATTERs study, mortality in the TXA group was lower than in the group not receiving TXA (Military Application of Tranexamic Acid in Trauma Emergency Resuscitation)  TA should be considered for use in bleeding trauma patients  No effect on total transfusion rates however
  • 29.
     Oxygen carryingcapacity & Delivery  Hemostasis  Metabolic status  Electrolytes
  • 30.
     No testcan judge the hemostasis accurately in bleeding patient  Disadvantages of conventional assays:  PT, aPTT, and fibrinogen levels, are likely not available in real- time fashion  Do not detect some haemostatic abnormalities, such as platelet dysfunction, hyperfibrinolysis, and FXIII deficiency  Do not quantify the relative contribution of pro-coagulant and anti-coagulant factors  Do not predict the future needs in MTP
  • 31.
     Short turnaround time (15-20min) ; aids in decision making at an early stage  Detects hyperfibrinolysis (clot strength)  It assesses all phases of coagulation even platelet role in primary hemostasis  It gives result in real time settings/POC such that existing temperature and metabolic status effects can be taken into account
  • 32.
     Frequent pathophysiologicalconsequence of severe injury as well as resuscitation  66% of trauma patients presents in ER with hypothermia  Classified into  Mild : 36°C to 34°C  Moderate : 33.9°C to 32°C  Severe : below 28°C
  • 33.
     Body temperaturesless than 33°C produces coagulopathy (functionally equivalent to factor conc. < 50%)  Thrombin generation on platelets is reduced by 25% at 33°C and platelet adhesion was reduced by 33%  Other clinical effects  Cardiac dysrythmias  Increased systemic vascular resistance  Left shift in oxygen Hb dissociation curve
  • 34.
     Clinical effectsnot seen until pH < 7.2  Effects :  Decreases cardiac contractility and cardiac output  Reduces activity of coagulation cascade  Causes platelet dysfunction
  • 35.
  • 36.
     Clinician discretioncan sometimes lead to delay or failure of resuscitation  Scoring helps in accurately identifying patients in need of large volume replacement  It also aids in restricting unnecessary transfusion and its adverse effects also save this precious resource for the more needy one (PBM)
  • 38.
     Surgical controlof bleeding  Hemodynamically stable  Correction of acidosis and coagulopathy  Signs of sufficient end organ perfusion  Improvement in mental status  Improvement in urine output
  • 40.
  • 41.
     Speed oftransfusion is important during MTP especially when exsanguination occurs at a rate greater than transfusion  Pressurized tubing or specialized pressurized rapid transfusers can augment flow  Blood and fluid warming is important as to not to exacerbate hypothermia.  Adjunctive techniques of warming including forced air devices, blankets,and high operating room temperatures
  • 45.
     Significant role Coagulation  Platelet adhesion  Cardiac and smooth muscle contractility  In the setting of hemorrhagic shock  Rapid infusion of blood products + decreased hepatic clearance of citrate (hypoperfusion/hypothermia)  Causes hypocalcemia  A threshold ionized calcium [iCa] <0.9 mmol/L proposed as a trigger for intravenous calcium
  • 48.
    THEY DO OCCURAND CAN BE FATAL
  • 49.
     Problems secondaryto volume resuscitation  Inadequate : Hypoperfusionlactic acidosisSIRSMODSDIC  Overzealous resuscitation : TACO / Interstitial edema  Dilutional problems  Dilutional coagulopathy  Low colloidal osmotic pressure : Interstitial edema  Problems related to stored blood  Citrate toxicity (hypoperfused liver)  Hyperkalemia/magnesemia(existing acidosis worsen this)  Hypothermia  Acidosis
  • 50.
     Respiratory complications: TRALI  SIRS  Sepsis  Thrombotic complications  TRIM
  • 51.
     Placement ofrefrigerators in urgent care centers and emergency rooms  Stocking up O blood group RBCs and AB plasma  Maintaining target response time of <30 min once request initiated(un crossmatched/IS X match)  prescribe blood and blood products early to allow for delivery time lag and thawing time (30 min for FFP)  Collect blood sample for cross match early as colloids may interfere with cross matching
  • 52.
    IT INVOLVES ALLOFUS WORK AS A TEAM