Related Experiment Video
Updated: Jul 28, 2026

05:52
Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
Local recombinant tissue plasminogen activator (rt-PA) thrombolytic therapy in microvascular surgery
B S Atiyeh1, H A Hashim, A M Hamdan
1Division of Plastic & Reconstructive Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
Microsurgery
|September 1, 1999
Summary
Local recombinant tissue plasminogen activator (rt-PA) effectively treats vascular thrombosis in microsurgery. This approach minimizes systemic side effects, improving outcomes in limb replantation and tissue transfer procedures.
Area of Science:
- Vascular Surgery
- Regenerative Medicine
- Thrombosis Management
Background:
- Vascular thrombosis is a major complication in microsurgery, leading to graft failure despite advancements.
- Current anticoagulation and antiplatelet protocols have limitations, and systemic thrombolytics pose bleeding risks.
Observation:
- This study explores the use of local recombinant tissue plasminogen activator (rt-PA) via intra-arterial, intravenous, and soft-tissue injection in replantation surgery.
- Specific administration routes were employed for arterial thrombi (intra-arterial infusion), venous thrombi (intravenous infusion), and digital replants (soft-tissue injection).
Findings:
- Local rt-PA administration demonstrated success in managing arterial and venous thrombi in replantation cases.
- Soft-tissue injection of rt-PA proved effective for salvaging replanted digits where direct vascular infusion was not feasible.
Implications:
- Local rt-PA offers a targeted approach to thrombolysis in microsurgery, reducing systemic complications.
- This method holds promise for preventing and salvaging free flap failures in composite tissue transfer procedures.
Related Concept Videos
Clot Retraction and Fibrinolysis
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...
Venous Thrombosis III: Interprofessional Care
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...

