Key result
Low-dose alteplase enables cardiac recovery and successful redo liver transplantation after massive PE.
Why the study?
Management of intracardiac thrombus and massive pulmonary embolus in patients with contraindications to systemic thrombolysis or embolectomy is challenging and lacks established treatment protocols.
Case Report (n=1)
Raises awareness of massive PE risk during ECMO cannulation for OLT; leaves open optimal rescue strategies in heparin-refractory, high-bleeding-risk cases.
This is a 61-year-old man with end-stage liver disease who experienced cardiac arrest secondary to a massive pulmonary embolus and intracardiac thrombus during cannulation for veno-venous extracorporeal membrane oxygenation (ECMO) in preparation for orthotopic liver transplantation (OLT). Surgery was aborted and the patient was taken back to the intensive care unit in cardiogenic shock on multiple vasopressors. The patient was unresponsive to heparin bolus and too high risk for systemic thrombolytics or embolectomy. He was ultimately treated with 12 mg total of alteplase through his pulmonary artery catheter over 3 hours. He had subsequent resolution of his cardiogenic shock and proceeded with successful liver transplantation 5 days after his initial event without any bleeding complications. Low-dose thrombolytic therapy in the setting of absolute contraindications to thrombolysis allowed for recovery of cardiac function and, ultimately redo OLT in a patient with otherwise little hope of survival.
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Kafi et al. (2017) conducted a case report in Massive pulmonary embolus and intracardiac thrombus post-cardiac arrest in end-stage liver disease (n=1). Alteplase was evaluated on Resolution of cardiogenic shock and successful redo liver transplantation. Treatment with 12 mg of alteplase allowed for recovery of cardiac function and successful redo liver transplantation in a patient with massive pulmonary embolus and contraindications to thrombolysis.
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