What is the recommended management for postpartum hemorrhage?

Management of Postpartum Hemorrhage

Administer tranexamic acid 1 g IV over 10 minutes as soon as postpartum hemorrhage is diagnosed (blood loss >500 mL vaginal or >1000 mL cesarean), within 3 hours of birth, alongside standard resuscitation and uterotonic therapy. 1

Immediate Actions

When PPH is identified, initiate the following simultaneously:

Tranexamic Acid Administration

• Give 1 g IV over 10 minutes (1 mL/min) immediately upon diagnosis
• Repeat with second 1 g dose if bleeding continues after 30 minutes or restarts within 24 hours
• Critical timing: Must be given within 3 hours of birth—benefit decreases 10% for every 15-minute delay, with no benefit and potential harm after 3 hours 1
• This applies to ALL causes of PPH (uterine atony, trauma, retained tissue)—not just when uterotonics fail 1
• The WOMAN trial demonstrated reduced bleeding-related mortality (1.5% vs 1.9%, NNT=276) when given early 2

Uterotonic Therapy

• Administer 5-10 IU oxytocin slow IV or IM at time of shoulder delivery for prevention 2
• For treatment: uterine massage and bimanual compression while administering additional uterotonics
• Oxytocin is more effective than misoprostol with fewer adverse effects 3

Resuscitation Protocol

• Fluid replacement with crystalloids
• Monitor vital signs continuously
• Estimate blood loss accurately
• Prepare for blood transfusion if blood loss exceeds 1500 mL (activate massive transfusion protocol)

Identify the Cause (4 T's Mnemonic)

Systematically evaluate:

1. Tone (70.6% of cases): Uterine atony—most common cause 4
2. Trauma (16.9%): Lacerations, hematomas, uterine rupture/inversion 4
3. Tissue (16.4%): Retained placenta or abnormal placentation 4
4. Thrombin (2.7%): Coagulopathy 4

Note that 7.8% of women have multiple concurrent causes, supporting use of treatment bundles 4

Sequential Interventions (Least to Most Invasive)

Non-Surgical Interventions

• Bimanual uterine compression
• Intrauterine balloon tamponade (highly effective alternative to surgery)
• Non-pneumatic antishock garment
• External aortic compression

Surgical Interventions (if above measures fail)

• Uterine compression (brace) sutures
• Arterial ligation
• Hysterectomy as last resort

Special Considerations

Manual Placenta Removal

• Do NOT perform routinely outside specialized facilities unless severe uncontrolled hemorrhage occurs 2
• Risk of complications in non-expert hands without adequate analgesia/asepsis outweighs benefits

Contraindications to Tranexamic Acid

• Known thromboembolic event during pregnancy
• Otherwise, give to all women with PPH regardless of suspected cause 1

Common Pitfalls

• Delaying tranexamic acid administration: Every 15-minute delay reduces effectiveness by 10% 1
• Withholding tranexamic acid for "minor" trauma-related bleeding: Give for ALL PPH causes 1
• Giving tranexamic acid after 3 hours: Potentially harmful with no benefit 1
• Underestimating blood loss: Use objective measurement when possible
• Attempting manual placenta removal in suboptimal conditions: Increases risk without clear benefit 2

The evidence strongly supports early, aggressive use of tranexamic acid as part of a standardized treatment bundle, with the 2018 WHO guideline representing a significant shift from previous recommendations that reserved it for refractory cases 1. This approach, combined with systematic uterotonic therapy and sequential mechanical/surgical interventions, addresses the leading cause of maternal mortality worldwide.