Medical management of PPH

Medical management of PPH

Medical management of PPH

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Uterotonics - The Tone Tighteners

  • First-Line: Oxytocin (Pitocin)

    • Stimulates upper uterine segment to contract.
    • Dose: 20-40 units in 1L crystalloid IV infusion.
  • Second-Line Agents:

    • Methylergonovine (Methergine)
      • Ergot alkaloid; causes generalized smooth muscle contraction.
      • Dose: 0.2 mg IM.
      • ⚠️ Contraindication: Hypertension, preeclampsia.
    • Carboprost Tromethamine (Hemabate)
      • Prostaglandin F2α analog.
      • Dose: 0.25 mg IM.
      • ⚠️ Contraindication: Asthma.
    • Misoprostol (Cytotec)
      • Prostaglandin E1 analog.
      • Dose: 800-1000 mcg per rectum.
  • Adjunct Therapy: Tranexamic Acid (TXA)

    • Antifibrinolytic; prevents clot breakdown.
    • Dose: 1 g IV, given within 3 hours of delivery.

⭐ Methylergonovine is contraindicated in patients with hypertension or preeclampsia due to its potent vasoconstrictive effects, which can precipitate a hypertensive crisis.

Uterotonic Medication Table for PPH

Adjunctive Meds - The Backup Brigade

  • When oxytocin isn't enough, these second-line agents are crucial. Administer sequentially if bleeding persists.
MedicationClassDose & RouteKey Contraindication
MethylergonovineErgot Alkaloid0.2 mg IMHypertension / Preeclampsia
Carboprost (Hemabate)Prostaglandin F2α0.25 mg IM/IntramyometrialAsthma ⚠️
Misoprostol (Cytotec)Prostaglandin E1800-1000 mcg PR-
Tranexamic Acid (TXA)Antifibrinolytic1 g IV over 10 minHx of thromboembolic disease
%%{init: {'flowchart': {'htmlLabels': true}}}%%
flowchart TD

A["🩺 Persistent Atony
• Uterine hemorrhage• Failure to contract"]

B["📋 Oxytocin Failed
• 1st line failed• Bleeding persists"]

C["💊 2nd Line Step
• Start uterotonics• Escalate therapy"]

D["💊 Specific Meds
• Methylergonovine• Carboprost dose"]

E["📋 Still Bleeding?
• Vital assessment• Ongoing PPH"]

F["💊 Add TXA
• Tranexamic acid• Antifibrinolytic"]

A --> B B --> C C --> D D --> E E -->|Yes| F

style A fill:#F7F5FD, stroke:#F0EDFA, stroke-width:1.5px, rx:12, ry:12, color:#6B21A8 style B fill:#FEF8EC, stroke:#FBECCA, stroke-width:1.5px, rx:12, ry:12, color:#854D0E style C fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534 style D fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534 style E fill:#FEF8EC, stroke:#FBECCA, stroke-width:1.5px, rx:12, ry:12, color:#854D0E style F fill:#FDF4F3, stroke:#FCE6E4, stroke-width:1.5px, rx:12, ry:12, color:#B91C1C


> ⭐ **Exam Favorite:** Always check for a history of asthma before administering Carboprost (Hemabate). Prostaglandin F2α is a potent bronchoconstrictor and can trigger a severe asthma attack.



## Management Algorithm - PPH Playbook

*   **Initial Steps:** Fundal massage, IV access, call for help.
*   Administer Tranexamic Acid (TXA) **1g** IV within **3 hours** of birth.

```mermaid
%%{init: {'flowchart': {'htmlLabels': true}}}%%
flowchart TD

    START["<b>⚠️ PPH Confirmed</b><br><span style='display:block; text-align:left; color:#555'>• Maternal bleeding</span><span style='display:block; text-align:left; color:#555'>• Postpartum hemorrhage</span>"]
    
    OXY["<b>💊 1st Line: Oxytocin</b><br><span style='display:block; text-align:left; color:#555'>• Uterotonic agent</span><span style='display:block; text-align:left; color:#555'>• Promote contraction</span>"]
    
    PERSIST{"<b>📋 Bleeding?</b><br><span style='display:block; text-align:left; color:#555'>• Evaluate response</span><span style='display:block; text-align:left; color:#555'>• Assess stability</span>"}
    
    MONITOR["<b>👁️ Monitor</b><br><span style='display:block; text-align:left; color:#555'>• Vital signs check</span><span style='display:block; text-align:left; color:#555'>• Ongoing assess</span>"]
    
    SECOND["<b>💊 2nd Line Drugs</b><br><span style='display:block; text-align:left; color:#555'>• Uterotonic options</span><span style='display:block; text-align:left; color:#555'>• Check CI's first</span>"]
    
    METHYL["<b>💊 Methylergonovine</b><br><span style='display:block; text-align:left; color:#555'>• CI: Hypertension</span><span style='display:block; text-align:left; color:#555'>• Ergot alkaloid</span>"]
    
    CARBO["<b>💊 Carboprost</b><br><span style='display:block; text-align:left; color:#555'>• CI: Asthma</span><span style='display:block; text-align:left; color:#555'>• Prostaglandin F2a</span>"]
    
    MISO["<b>💊 Misoprostol</b><br><span style='display:block; text-align:left; color:#555'>• PGE1 analogue</span><span style='display:block; text-align:left; color:#555'>• Rectal or subling</span>"]

    START --> OXY
    OXY --> PERSIST
    PERSIST -->|No| MONITOR
    PERSIST -->|Yes| SECOND
    
    SECOND --> METHYL
    SECOND --> CARBO
    SECOND --> MISO

    style START fill:#FDF4F3, stroke:#FCE6E4, stroke-width:1.5px, rx:12, ry:12, color:#B91C1C
    style OXY fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534
    style PERSIST fill:#FEF8EC, stroke:#FBECCA, stroke-width:1.5px, rx:12, ry:12, color:#854D0E
    style MONITOR fill:#EEFAFF, stroke:#DAF3FF, stroke-width:1.5px, rx:12, ry:12, color:#0369A1
    style SECOND fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534
    style METHYL fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534
    style CARBO fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534
    style MISO fill:#F1FCF5, stroke:#BEF4D8, stroke-width:1.5px, rx:12, ry:12, color:#166534

📌 Mnemonic (Uterotonics): Oh My Heavy Menses (Oxytocin, Methylergonovine, Hemabate, Misoprostol)

⭐ In cases of uterine atony, if oxytocin fails, the next step is typically a second-line uterotonic like methylergonovine or carboprost, keeping their contraindications (hypertension and asthma, respectively) in mind.

High‑Yield Points - ⚡ Biggest Takeaways

  • Uterine atony is the #1 cause of PPH; always start with uterine massage and oxytocin.
  • Refractory atony requires second-line agents like methylergonovine, carboprost, or misoprostol.
  • Methylergonovine is contraindicated in hypertension and preeclampsia due to its vasoconstrictive effects.
  • Carboprost tromethamine (a prostaglandin) is contraindicated in asthma due to the risk of bronchoconstriction.
  • Tranexamic acid (TXA), an antifibrinolytic, is crucial if initial uterotonics fail to control the bleeding.

Practice Questions: Medical management of PPH

Test your understanding with these related questions

A 27-year-old woman, gravida 3, para 2, at 41 weeks' gestation is admitted to the hospital in active labor. Her pregnancy has been uncomplicated. Both of her prior children were delivered by vaginal birth. She has a history of asthma. Current medications include iron and vitamin supplements. After a prolonged labor, she undergoes vaginal delivery. Shortly afterwards, she begins to have heavy vaginal bleeding with clots. Her temperature is 37.2°C (98.9°F), pulse is 90/min, respirations are 17/min, and blood pressure is 130/72 mm Hg. Examination shows a soft, enlarged, and boggy uterus on palpation. Laboratory studies show: Hemoglobin 10.8 g/dL Hematocrit 32.3% Leukocyte Count 9,000/mm3 Platelet Count 140,000/mm3 Prothrombin time 14 seconds Partial thromboplastin time 38 seconds Her bleeding continues despite bimanual uterine massage and administration of oxytocin. Which of the following is the most appropriate next step in management?

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Flashcards: Medical management of PPH

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Pregnancy-related infarction of the pituitary gland (Sheehan syndrome) often occurs following _____

TAP TO REVEAL ANSWER

Pregnancy-related infarction of the pituitary gland (Sheehan syndrome) often occurs following _____

postpartum bleeding

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