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Updated: May 11, 2026

Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
Recombinant tissue plasminogen activator for massive pulmonary thromboembolism
Kouki Samejima1, Yasushi Takai, Hideyoshi Matsumura
1Division of Maternal and Fetal Medicine, Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
This case study shows that thrombolytic agents like monteplase can be safely used in pregnant patients with massive pulmonary thromboembolism (PTE), even when delivery is imminent, improving maternal outcomes.
Area of Science:
- Obstetrics and Gynecology
- Cardiology
- Critical Care Medicine
Background:
- Massive pulmonary thromboembolism (PTE) during pregnancy poses severe risks to both mother and fetus.
- Monteplase, a recombinant tissue plasminogen activator, is an effective treatment for PTE, but its use before delivery is less documented.
Observation:
- A 28-week pregnant patient experienced massive PTE, leading to cardiac arrest and intrauterine fetal demise.
- The patient received percutaneous cardiopulmonary support and monteplase, achieving thrombolysis within 30 minutes.
- Following treatment, the patient spontaneously delivered a stillborn and subsequently achieved hemostasis after several hours.
Findings:
- Successful thrombolysis with monteplase was achieved in a critically ill pregnant patient with massive PTE.
- The administration of monteplase did not preclude vaginal delivery or complicate postpartum hemostasis.
- This case demonstrates the feasibility of using thrombolytic therapy in late-stage pregnancy for massive PTE.
Implications:
- Thrombolytic therapy with monteplase can be a viable option for managing life-threatening PTE in pregnant patients, even in the third trimester.
- Careful monitoring and management can allow for successful thrombolysis and subsequent delivery.
- This approach may improve maternal survival rates in critical PTE cases during pregnancy.
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