The importance of early veno-arterial extracorporeal membrane oxygenation in the management of amniotic fluid embolism complicated by cardiac arrest: a case report and literature review

Q: What is the clinical evidence from this study?

Study design: Case Report. Population: Amniotic fluid embolism complicated by cardiac arrest and severe postpartum hemorrhage (n=1). Intervention: Early veno-arterial extracorporeal membrane oxygenation (VA-ECMO) with an anticoagulation-free strategy. Primary outcome: Maternal survival and cardiopulmonary and neurological recovery.

Hongfei Chen; Junru Tong; Y L Chen; Lingling Huang; Xiaoting Huang; Shi Liao; Yan Huang; Li Deng

doi:10.1186/s12884-025-08601-0

December 23, 2025BMC Pregnancy and ChildbirthOpen Access

The importance of early veno-arterial extracorporeal membrane oxygenation in the management of amniotic fluid embolism complicated by cardiac arrest: a case report and literature review

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Key result

Early anticoagulation-free VA-ECMO supports full maternal recovery without thromboembolic complications after amniotic fluid embolism.

n=1

Why the study?

Amniotic fluid embolism with cardiac arrest carries an exceedingly high maternal mortality. While early veno-arterial extracorporeal membrane oxygenation (VA-ECMO) may provide essential cardiopulmonary support, its clinical value warrants further investigation.

Does early initiation of anticoagulation-free veno-arterial extracorporeal membrane oxygenation (VA-ECMO) facilitate cardiopulmonary recovery and survival in a parturient with cardiac arrest and severe coagulopathy induced by amniotic fluid embolism?

Key Points

To evaluate the feasibility and clinical utility of early veno-arterial extracorporeal membrane oxygenation as a resuscitative bridge therapy for cardiac arrest triggered by amniotic fluid embolism.
A 36-year-old parturient with advanced maternal age experienced sudden cardiac arrest during the second stage of labor caused by amniotic fluid embolism.
Immediate cardiopulmonary resuscitation achieved return of spontaneous circulation within four minutes, followed by initiation of veno-arterial extracorporeal membrane oxygenation (VA-ECMO) using an anticoagulation-free strategy.
The multidisciplinary team managed refractory postpartum hemorrhage via emergent total hysterectomy alongside intensive hemodynamic and laboratory monitoring.
The interval from the clinical decision to cannulation and initiation of VA-ECMO flow was 53 minutes, hindered by femoral artery cannulation difficulties caused by circulatory collapse.
VA-ECMO reversed severe tissue hypoperfusion, with blood lactate decreasing from 13.10 mmol/L pre-initiation to 2.00 mmol/L prior to discharge.
The patient achieved full cardiopulmonary recovery and was discharged without thromboembolic complications or permanent neurological deficits despite a minor subdural hematoma linked to coagulopathy.

Study Design

Type

Case Report (n=1)

Multicenter

No

Structured PICO

Does early initiation of anticoagulation-free veno-arterial extracorporeal membrane oxygenation (VA-ECMO) facilitate cardiopulmonary recovery and survival in a parturient with cardiac arrest and severe coagulopathy induced by amniotic fluid embolism?

P

Population

1 pregnant woman (age 36, 38+5 weeks gestation) with amniotic fluid embolism complicated by intrapartum cardiac arrest, DIC, and severe postpartum hemorrhage, followed for 6 months.

I

Intervention

Early veno-arterial extracorporeal membrane oxygenation (VA-ECMO) support (percutaneous cannulation via right femoral artery [17 Fr] and right femoral vein [21 Fr] with a 7 Fr distal perfusion catheter; settings: pump speed 3900 rpm, oxygen flow 2.0 L/min, blood flow 3.90 L/min, FiO2 100%) initiated post-ROSC using an anticoagulation-free strategy for 3 days, alongside cardiopulmonary resuscitation, adrenaline (1 mg IV every 3-5 min), milrinone, dobutamine, papaverine, hydrocortisone, massive transfusion protocol, and total hysterectomy.

O

Outcome

Maternal cardiopulmonary recovery and survival to hospital discharge without severe neurological deficits or thromboembolic complications, with follow-up at 6 months.hard clinical

Early initiation of anticoagulation-free VA-ECMO is a feasible and effective bridging therapy for refractory cardiopulmonary failure following amniotic fluid embolism-induced cardiac arrest, even in the setting of severe disseminated intravascular coagulation and postpartum hemorrhage.

Limitations

Single-patient case report lacking a control group or statistical power
53-minute interval from decision-making to ECMO flow initiation due to difficult femoral artery cannulation from poor vascular filling and logistics of mobilizing the ECMO team to the delivery room
Broader clinical application is limited by resource constraints, high technical demands, and the absence of robust clinical trial evidence
Single case report design
Absence of robust clinical evidence from large-sample rigorous studies
Resource constraints and technical demands of mobilizing ECMO teams to non-ICU settings
53-minute interval from decision-making to ECMO flow initiation due to logistical and cannulation challenges

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Implication

May support anticoagulation-free VA-ECMO post-ROSC in AFE arrest; hypothesis-generating and leaves open prospective validation before adoption.

Abstract

BACKGROUND: Amniotic fluid embolism (AFE) with cardiac arrest is an obstetric emergency with an exceedingly high maternal mortality. Early application of veno-arterial extracorporeal membrane oxygenation (VA-ECMO) may provide essential cardiopulmonary support, but its clinical value warrants further investigation. CASE REPORT: This report describes the successful management of a 36-year-old parturient with advanced maternal age who sustained sudden cardiac arrest due to AFE during the second stage of labor. Immediately following arrest, the patient received high-quality CPR and achieved return of spontaneous circulation (ROSC) within four minutes. A multidisciplinary team initiated early VA-ECMO support with an anticoagulation-free strategy post-ROSC, acting as a critical bridging therapy to cardiopulmonary recovery. Although total hysterectomy was subsequently performed for refractory severe postpartum hemorrhage, the patient ultimately achieved complete recovery and was discharged without sequelae, including thromboembolic complications or severe neurological deficits. CONCLUSIONS: This case demonstrates the feasibility and potential utility of early VA-ECMO as a resuscitative therapy for AFE-induced cardiac arrest. Its successful application in this setting justifies further evaluation of ECPR in peripartum emergencies.

Discussion

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Cite This Study

Chen et al. (2025) conducted a case report in Amniotic fluid embolism complicated by cardiac arrest and severe postpartum hemorrhage (n=1). Early veno-arterial extracorporeal membrane oxygenation (VA-ECMO) with an anticoagulation-free strategy was evaluated on Maternal survival and cardiopulmonary and neurological recovery. Early anticoagulation-free VA-ECMO initiated post-ROSC enabled complete maternal recovery and discharge on day 18 without thromboembolic or severe neurological sequelae after AFE cardiac arrest.

synapsesocial.com/papers/6af85be4ec3ef2fa7116672d https://doi.org/10.1186/s12884-025-08601-0

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The importance of early veno-arterial extracorporeal membrane oxygenation in the management of amniotic fluid embolism complicated by cardiac arrest: a case report and literature review

Key Points

Study Design

Structured PICO

Limitations

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

The importance of early veno-arterial extracorporeal membrane oxygenation in the management of amniotic fluid embolism complicated by cardiac arrest: a case report and literature review

Key Points

Study Design

Structured PICO

Limitations

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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