Management of Hemorrhage
Immediate control of bleeding through direct pressure, tourniquets, or surgical/radiological intervention is the first priority, followed by aggressive resuscitation with warmed blood products, active warming of the patient, and early administration of tranexamic acid within 3 hours of bleeding onset. 1
Immediate Actions
Control bleeding and secure access:
- Apply direct pressure, tourniquets, or haemostatic dressings to obvious bleeding points 1
- Establish large-bore IV access (ideally 8-Fr central access in adults) or consider intra-osseous access if peripheral access fails 1
- Administer high-flow oxygen 1
Initial assessment and monitoring:
- If the patient is conscious, talking, and has a palpable peripheral pulse, blood pressure is adequate—avoid aggressive normalization initially 1
- Obtain baseline labs: FBC, PT, aPTT, Clauss fibrinogen (not derived fibrinogen, which is misleading), and cross-match 1
- Use near-patient testing (TEG or ROTEM) if available 1
Resuscitation Strategy
Blood product administration:
- Resuscitate with warmed blood and blood components, not crystalloids alone 1
- Use blood group O initially (fastest), then group-specific, then cross-matched blood 1
- In major trauma, give fresh frozen plasma early in a 1:1 ratio with red blood cells until coagulation results are available 2
- Actively warm the patient and all transfused fluids to 37°C—this is mandatory 3
Coagulopathy management:
- Maintain fibrinogen levels >2 g/L in postpartum hemorrhage and >1.5 g/L in other hemorrhage 2
- Keep platelet count >75 × 10⁹/L (levels <50 × 10⁹/L are strongly associated with microvascular bleeding) 3
- Anticipate and prevent dilutional coagulopathy through early plasma infusion 1, 3
Tranexamic Acid Administration
Dosing and timing (critical for mortality benefit):
- Administer 1 g IV over 10 minutes, followed by 1 g over 8 hours 1, 4
- Must be given within 3 hours of bleeding onset—the effect is greatest when given early (RR 0.69 for mortality when given within 3 hours) 5
- No benefit when given >3 hours after bleeding onset 5
- Indicated in major trauma and postpartum hemorrhage, but NOT in gastrointestinal bleeding 2
Important caveats:
- Contraindicated in subarachnoid hemorrhage due to risk of cerebral edema and infarction 1, 6
- Use repeat doses cautiously in renal impairment (drug is renally excreted) 1
- Single bolus administration is likely preferable to bolus plus infusion regimen based on recent comparative data 7
Definitive Control
Surgical or radiological intervention:
- Consider surgery early; may need "damage control" approach—interrupt surgery to correct physiology before completing definitive repair 1
- Radiologically-guided arterial embolization is highly effective and may eliminate need for surgery, particularly in obstetric hemorrhage 1
- Alert theatre team about cell salvage autotransfusion needs 1
Ongoing Management
Physiological optimization:
- Once bleeding is controlled, aggressively normalize blood pressure, acid-base status, and temperature—but avoid vasopressors during active bleeding 1
- Restore organ perfusion without targeting normal blood pressure during active hemorrhage 1
Post-resuscitation care:
- Admit to critical care for monitoring of coagulation, hemoglobin, blood gases, and wound drains 1, 3
- Start venous thromboprophylaxis as soon as bleeding is controlled—patients rapidly develop a prothrombotic state 1, 3
- Consider temporary inferior vena cava filtration if needed 1
Common Pitfalls
- Delaying tranexamic acid administration: The mortality benefit disappears after 3 hours 5
- Using derived fibrinogen levels: These are misleading; only use Clauss fibrinogen 1
- Inadequate warming: Hypothermia exacerbates coagulopathy—warm the patient AND all fluids 3
- Over-resuscitation with crystalloids: This worsens dilutional coagulopathy; use blood products 3
- Giving tranexamic acid in subarachnoid hemorrhage: This is contraindicated 1, 6