Treatment of Postpartum Hemorrhage
Immediate First-Line Management (Within Minutes)
Administer tranexamic acid 1 g IV over 10 minutes immediately alongside oxytocin 5-10 IU (IV or IM), initiate uterine massage and bimanual compression, and begin fluid resuscitation—this combination forms the cornerstone of PPH management and must be implemented within 3 hours of birth. 1, 2, 3
Critical Timing Considerations
- Tranexamic acid effectiveness decreases by approximately 10% for every 15-minute delay, and administration beyond 3 hours may be harmful rather than beneficial 2, 3
- A second dose of TXA 1 g IV can be given if bleeding continues after 30 minutes or restarts within 24 hours 3
- TXA reduces bleeding-related mortality and should be administered regardless of PPH etiology (atony, trauma, retained tissue) 1, 2
Concurrent Initial Interventions
- Perform manual uterine examination with antibiotic prophylaxis 4
- Conduct careful visual inspection of the lower genital tract for lacerations 5, 4
- Continue uterine massage 4
- Maintain oxytocin infusion not exceeding cumulative dose of 40 IU 6, 4
Second-Line Pharmacologic Management (If Bleeding Persists After 30 Minutes)
If oxytocin fails to control bleeding, administer sulprostone within 30 minutes of PPH diagnosis. 4
Alternative Uterotonic Agents
Carboprost (Hemabate) 250 mcg IM is indicated for postpartum hemorrhage due to uterine atony unresponsive to conventional methods 7
Methylergonovine 0.2 mg IM is an option but has critical contraindications 3
Mechanical Interventions (Before Surgery or Interventional Radiology)
Implement intrauterine balloon tamponade if pharmacologic measures fail—this should be attempted before proceeding to surgery or interventional radiology. 3, 4
Additional Mechanical Options
- Pelvic pressure packing for acute uncontrolled hemorrhage (can remain for 24 hours) 3
- Non-pneumatic antishock garment for temporary stabilization during transfer 3
- Uterine compression sutures (B-Lynch or similar brace sutures) 3
Resuscitation and Blood Product Management
Transfusion Thresholds and Targets
- Initiate massive transfusion protocol if blood loss exceeds 1,500 mL 3, 8
- Do not delay transfusion waiting for laboratory results in severe bleeding 3
- Transfuse packed RBCs, fresh frozen plasma, and platelets in 1:1:1 to 1:2:4 ratio 1
- Target hemoglobin >8 g/dL during active hemorrhage 3, 4
Coagulation Factor Replacement
- Maintain fibrinogen ≥2 g/L during active hemorrhaging—hypofibrinogenemia is the most predictive biomarker of severe PPH 1, 3, 4
- Fibrinogen levels <200 mg/dL are associated with severe postpartum hemorrhage 1
- Administer cryoprecipitate or fibrinogen concentrate if levels <2-3 g/L with ongoing bleeding 2
- Platelet transfusion rarely needed unless PPH exceeds 5,000 mL or platelet count <75 × 10⁹/L 2
Invasive Interventions (For Refractory Bleeding)
If PPH is not controlled by pharmacologic treatments and intrauterine balloon, proceed to arterial embolization or surgery. 4
Interventional Radiology
- Uterine artery embolization is particularly useful when no single identifiable bleeding source exists and should be considered in hemodynamically stable patients who have failed medical management 2, 3
- CT with IV contrast can localize bleeding sources in hemodynamically stable patients, particularly for intra-abdominal hemorrhage 3
- Hospital-to-hospital transfer for embolization is possible once hemoperitoneum is ruled out and if hemodynamic status allows 4
Surgical Options
- Uterine compression sutures (no specific technique favored over another) 4
- Uterine artery ligation (though efficacy decreased due to collateral circulation) 2
- Hysterectomy reserved as last resort when all other measures have failed 2
Essential Supportive Measures Throughout Management
Temperature and Oxygenation
- Maintain normothermia by warming all infusion solutions and blood products and using active skin warming—clotting factors function poorly at lower temperatures 3, 4
- Administer oxygen in severe PPH 3, 4
Monitoring and Prophylaxis
- Re-dose prophylactic antibiotics if blood loss exceeds 1,500 mL 3
- Continue hemodynamic monitoring for at least 24 hours post-delivery due to significant fluid shifts 3
- Consider thromboprophylaxis after bleeding controlled, especially with additional VTE risk factors 3
Etiology-Specific Considerations
The "Four T's" Approach
- Tone (Uterine Atony): Most common cause (70-80% of cases)—presents with soft, boggy uterus 5, 9
- Trauma (Lacerations): Most common cause when uterus is firm—requires systematic visual inspection under adequate lighting of cervix, vaginal walls, perineum, and periurethral area 5, 3
- Tissue (Retained Products): Verify complete placental delivery; consider transvaginal ultrasound with Doppler if no laceration found 5, 3
- Thrombin (Coagulopathy): Assess with PT/PTT, fibrinogen, platelet count 5, 8
Common Pitfalls to Avoid
- Do not assume anticoagulation timing matters for vaginal delivery—evidence shows no difference in PPH risk whether LMWH was given <24 hours or >24 hours before delivery 5
- Do not perform manual removal of placenta outside specialized structures except in severe, uncontrollable PPH 1
- Avoid prostaglandin F2α in women with asthma 3