Cardiac surgery carries a distinct bleeding challenge: systemic anticoagulation for cardiopulmonary bypass, hemodilution, platelet dysfunction, and long suture lines all contribute to perioperative blood loss. Effective hemostasis draws on surgical technique, topical agents, and a coordinated coagulation strategy.
Surgical and mechanical techniques
Meticulous suture technique, reinforcement of anastomoses, and careful inspection of suture lines under controlled pressure remain the foundation. Buttressing materials and pledgets support fragile tissue, while precise electrosurgical control addresses diffuse oozing.
Topical hemostatic agents
- Mechanical agents such as oxidized cellulose and gelatin provide a matrix for clot formation.
- Active agents containing thrombin drive fibrin formation directly.
- Flowable and combination products conform to irregular surfaces and combine matrix and active components.
- Sealants reinforce suture lines and seal needle holes.
Coagulation management
Restoration of normal coagulation after bypass involves protamine reversal of heparin, point-of-care testing to identify specific deficits, and targeted replacement of platelets, fibrinogen, and clotting factors. Goal-directed, test-guided transfusion reduces unnecessary blood-product exposure.
Persistent challenges
Redo operations, aortic procedures, and patients on antithrombotic therapy present the greatest difficulty. A structured, escalating approach — from surgical control to topical agents to factor-based correction — helps teams manage refractory bleeding while limiting transfusion-related risk.
INVAMED technologies in this space
INVAMED manufactures hemostatic and tissue-sealant solutions and cardiac surgery instruments; explore the hemostatic solutions category and the cardiac surgery instruments category.
Device availability and approved indications vary by country. This content is prepared for healthcare professionals and does not replace clinical judgment or the instructions for use.