9. Goals ofTrauma Resuscitation
Vital organ perfusion while avoiding the “bloody” vicious
cycle:
1. Continued bleeding
2. Hypothermia
3. Acidosis
4. Coagulopathy
10. Minimizing Continued Bleeding
Nothing to do with what fluid or ratios.
“Restrained resuscitation”. “Permissive hypotension”.
Generally target systolic blood pressure 80-90 mmHg if
no traumatic brain injury (TBI).
But mean arterial pressure of 80 mmHg ifTBI present.
11. Minimizing Hypothermia
Nothing to do with what fluid or ratios.
But about how you give it and temperature/environment
management.
“Active warming”, “warmed fluids”, “climate control”.
Admission hypothermia was independently associated
with increased odds of death 3.03. (95% CI 2.62-3.51)
12. Acidosis and Coagulopathy
When fluid type and ratios may matter.
What is available?
Crystalloids
Colloids
What is less available?
Blood
15. Crystalloids
0.9% Sodium Chloride
Nothing normal about “normal saline”: pH 7.0.
NS associated with lower systemic vascular resistance, worse
acidosis and coagulopathy in animal hemorrhage models.
Need to give quite a bit.
Little doubt that it is NOTideal.
17. Crystalloids
Hypertonic saline
ICP decreased by a mean of 8.3 mm Hg (P < 0.0001)
PbtO2 improved by 3.1 mm Hg (P < 0.01).
ICP of more than 31 mm Hg decreased by 14.2 mm Hg.
CPP values of less than 70 mm Hg increased by a mean of
6 mm Hg (P < 0.0001).
Sounds great!
21. Chloride
Chloride and metabolic acidosis/strong ion acidosis
Chloride and coagulopathy
Chloride and kidney injury
Chloride and reduced splanchnic perfusion
22. Crystalloids
Before (760 patients) vs After (773 patients)
Study, Australia.
~200 mmol of chloride less.
Hyperchloridemia associated with double the odds
of RIFLE-defined kidney injury (p = .004).
Before After P
Serum Cr Rise (umol/L) 22.6 14.8 0.03
AKI incidence 14% 8.4% 0.001
Use of RRT 10% 6.3% 0.005
26. Crystalloids
Severe (MAP: 25 to 30 mmHg) vs Moderate (MAP: 40 to
45 mmHg)
Resuscitated with RS or RL.
Observed for 150 min.
Moderate shock: 100% survived and improved.
Severe shock group:
25% of RS rats survived.
100% of RL rats died before the end of the study period with
worsened acid-base and metabolic parameters.
28. Crystalloids
Plasma-Lyte A: acetate and gluconate instead.
46 patients.
Better acid base and biochemistry with Plasma-lyte A, but
no difference in urine output and mortality.
Small numbers.Too early to say.
30. Colloids
Hydroxyethyl starch
Bad press: increase renal failure and mortality
115 patients. SouthAfrica. Blunt and Penetrating injury.
Found better lactate clearance and less renal failure In
penetrating trauma.
No firm conclusions drawn for blunt trauma.
31. Colloids
Did not emphasize:
Transfusion needs in HES130/0.4 blunt trauma patients.
RBC 2x more, FFP 3x more, Platelets 5x more (All P < 0.005)!
Renal injury and lactate clearance were post hoc and not pre-
specified end points!
Baseline characteristics were not equal!
HES 130/0.4 group: 5 years younger, 5kg lighter with 20% lower
baseline lactate than comparator.
35. Colloids
Albumin
SAFE Study: post hoc: higher mortality with albumin inTBI.
No benefit in burn patients given 14 days of 5% albumin.
Expensive, no distinct advantage during initial presentation.
Hidden chloride.
37. Colloid vs Crystalloid
Colloid No. of
Trials
Patients Pooled RR 95% CI
Albumin/plasm
a Protein
24 9920 1.01 0.93 to 1.10
HES 25 9147 1.10 1.02 to 1.19
Modified
Gelatin
11 506 0.91 0.49 to 1.72
Dextran 9 834 1.24 0.94 to
1.65
Dextran in
hypertonic
crystalloid
9 1985 0.91 0.71 to 1.06
38. Colloid vs Crystalloid
“There is no evidence from randomized controlled trials that
resuscitation using colloids compared with crystalloids
reduces the risk of death in patients with trauma, burns or
following surgery.The use of hydroxyethyl starch might
even increase mortality.”
39. Colloid vs Crystalloid
2857 patients in Europe. 57 centres.
Multicenter, randomized clinical trial stratified by case mix
(sepsis, trauma, or hypovolemic shock without sepsis or
trauma).
No difference in 28-day mortality.
90-day mortality was lower (RR, 0.92 [95% CI, 0.86 to 0.99];
P = 0.03).
“this finding should be considered exploratory and requires further
study before reaching conclusions about efficacy.”
42. Blood Products
Red Blood CellsTransfusion
Temperature
Acid-base
electrolyte – K, Ca,
TRALI
MassiveTransfusion Coagulopathy
Multifactorial :
•Plasma
•TRALI
•Platelets
•Cryoprecipitate
43. Blood Product Ratios
Military Data
Retrospective. 246 MT patients. US combat support hospital.
Logistic regression, plasma to RBC ratio independently
associated with survival (odds ratio 8.6, 95% confidence interval
2.1-35.2).
Plasma : RBC Overall mortality rate Hemorrhage mortality
rate
1:8 65% 92.5%
1:2.5 34% 78%
1:1.4 19% 37%
44. Blood Product Ratios
Civilian Data
Prospective cohort study. 1245 patients. 10 US Level 1
Trauma Centre.
Increased plasma : RBC and platelets : RBC ratios
independently associated with decreased early
mortality, due to hemorrhage.
Patients with ratios less than 1:2 were 3 to 4 times more
likely to die than patients with ratios of 1:1 or higher.
60. Why Not?
What Trauma?
Penetrating
Blunt
Head injury
Burns
Combinations
Who getsTrauma
Paediatrics
Adult
Elderly
Premorbids
Different Resuscitation Goals
61. Conclusion
We shall not bleed to death
if…
Correct type of fluid for the
Correct patient for the
Correct injury in the
Correct amounts or ratios for the
Correct end points.
62. Conclusion
Until then… we shall not:
Give cold fluids
Give excessive chloride
Give too little/much blood products
(ForgetTranexamic acid)
Forget the context of the patient, injury and individualized
resuscitation goals.