Acute pulmonary embolism without haemodynamic instability: what to do when anticoagulation fails to maintain stability

This protocol applies to patients with acute pulmonary embolism who presented without haemodynamic instability and were started on anticoagulation, but subsequently develop haemodynamic decompensation or circulatory collapse — indicating that first-line treatment has not achieved its goal.

In the absence of haemodynamic instability at presentation, further risk stratification of PE is recommended, as it has implications for early discharge versus hospitalisation or monitoring of the patient.

Previous treatment & failure condition

First-line management was anticoagulation, targeting maintained clinical and haemodynamic stability with no haemodynamic decompensation or circulatory collapse over the first hours to days. This escalation protocol is triggered when that goal is not achieved — that is, when haemodynamic deterioration or circulatory collapse occurs despite ongoing anticoagulation.

Next-step approach (partial — full protocol below)

When haemodynamic deterioration develops on anticoagulation, a systemic rescue intervention is recommended; procedural alternatives may be considered in selected patients. The full decision pathway, selection criteria, and sequencing are available in the complete protocol.

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References

DOI: 10.1093/eurheartj/ehz405

In the absence of haemodynamic instability at presentation, further risk stratification of PE is recommended, as it has implications for early discharge vs. hospitalization or monitoring of the patient.

Rescue thrombolytic therapy is recommended for patients with haemodynamic deterioration on anticoagulation treatment.

As an alternative to rescue thrombolytic therapy, surgical embolectomy or percutaneous catheter-directed treatment should be considered for patients with haemodynamic deterioration on anticoagulation treatment.

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