Patients reviewing information about an upcoming surgery may come across the term fibrin sealant, sometimes also called fibrin glue. So what is fibrin sealant? It is a type of surgical adjunct made from components involved in the body's own final clotting steps, used by surgeons to support bleeding control and, in some cases, to help seal tissue during a procedure.
Unlike synthetic adhesives, fibrin sealants are biologically derived, meaning they are formulated from proteins that mimic the last stage of the natural coagulation cascade.
How Does Fibrin Sealant Work?
Fibrin sealants generally combine two main components — fibrinogen and thrombin — that are mixed together at the time of application, often through a dual-syringe applicator. When combined, thrombin converts fibrinogen into fibrin, forming a clot-like structure directly at the application site. This mimics the final step of the body's own clotting cascade rather than introducing an entirely foreign material.
Because this process closely resembles natural clot formation, fibrin sealants are sometimes described as having both hemostatic (bleeding control) and adhesive (tissue-sealing) properties.
When Might a Surgeon Consider Fibrin Sealant?
Fibrin sealants are generally used as an adjunct — meaning as an additional supportive tool alongside standard surgical technique, not as a replacement for it. A surgeon might consider a fibrin sealant when:
- Standard techniques such as pressure, cautery, or ligation have not fully achieved hemostasis
- The bleeding surface is diffuse or irregular, making conventional tools less practical
- Additional support is needed for a suture or staple line
- The patient has an underlying condition affecting normal clotting function
The decision to use fibrin sealant, and the specific product selected, is made by the operating surgeon based on the clinical situation encountered.
Is Fibrin Sealant the Same as Cyanoacrylate Tissue Adhesive?
No. While both are sometimes grouped under the general term "tissue sealant," they are chemically and functionally different. Fibrin sealants are biologically derived and mimic natural clotting. Cyanoacrylate adhesives, by contrast, are synthetic polymers that rapidly bond upon contact with tissue moisture. Each has distinct handling properties, and the choice between them depends on the clinical scenario and surgeon preference.
What Happens to Fibrin Sealant After Surgery?
Because fibrin sealant is derived from clotting proteins, the material is generally broken down and absorbed by the body as part of normal tissue healing, similar to how a natural blood clot resolves over time. Specific resorption timelines vary by formulation and clinical setting.
Frequently Asked Questions
Is fibrin sealant used in every surgery?
No. Fibrin sealant is used selectively, as determined by the operating surgeon, when standard hemostatic techniques require additional support. Many procedures do not require it at all.
Does fibrin sealant carry any risks?
As with any surgical adjunct, use of fibrin sealant carries general procedural risks, and patients with specific allergies or sensitivities should discuss this with their surgical team beforehand. All procedures carry risks, and suitability is determined by a physician.
How is fibrin sealant applied during surgery?
It is typically applied using a specialized dual-syringe or spray applicator that combines the two components at the point of delivery, allowing the surgeon to apply it directly and precisely to the target tissue surface.
Related INVAMED Resources
- Explore INVAMED's Hemostatic / Tissue Sealant Solutions product category
- Learn more about Tissue Sealants vs. Hemostatic Agents: Key Differences
- Review What Is Surgical Hemostasis? A Patient's Guide
Medical Disclaimer: This article is provided for general informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendation. It is not a substitute for consultation with a qualified healthcare professional. Product indications, availability, and regulatory status vary by country. Always refer to the official Instructions for Use (IFU) and consult a licensed physician for guidance specific to your situation. INVAMED devices are intended for use by trained healthcare professionals.