Key result
VV-ECMO bridges recovery in severe post-obstructive negative pressure pulmonary edema from ACE inhibitor angioedema.
Why the study?
Life-threatening angioedema caused by ACE inhibitors and subsequent post-obstructive negative pressure pulmonary edema refractory to mechanical ventilation are rare and require advanced management strategies.
Case Report (n=1)
VV-ECMO can serve as an effective bridge to recovery in patients with severe negative pressure pulmonary edema secondary to ACE inhibitor-induced angioedema that is refractory to mechanical ventilation.
Answers are grounded in this paper and cite their sources.
May support VV-ECMO consideration in refractory cases; single-case evidence leaves open need for prospective validation.
The indications for extracorporeal membrane oxygenation (ECMO) are becoming increasingly widespread nowadays. This case report describes the unique presentation of an adult patient with a combination of two rare complications: life-threatening angioedema caused by angiotensin-converting enzyme inhibitors (ACEi) and subsequent post-obstructive negative pressure pulmonary edema (NPPE). In this case, worsening angioedema that was unresponsive to medication led to severe airway obstruction and near-fatal acute respiratory syndrome due to NPPE. The worsening clinical course required a multidisciplinary approach and immediate initiation of extracorporeal membrane oxygenation (VV-ECMO). The literature reports that most NPPE cases resolve with oxygenation. However, in our case, the NPPE was refractory to mechanical ventilatory support, and we had to initiate VV-ECMO to prevent the patient from going into cardiac arrest due to severe hypoxia. This case underscores the critical role of VV-ECMO as a bridge to recovery from severe NPPE. It also highlights the need to raise clinicians' awareness of the potential life-threatening side effects of the commonly used antihypertensive drug perindopril.
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Smirnova et al. (2025) conducted a case report in ACE inhibitor induced post-obstructive negative pressure pulmonary edema and angioedema (n=1). VV-ECMO was evaluated on Recovery from severe NPPE. VV-ECMO successfully served as a bridge to recovery for an adult patient with severe, refractory post-obstructive negative pressure pulmonary edema induced by ACE inhibitor-related angioedema.
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