New Biocompatible Cyanoacrylate and Polylactic Acid Hemostatic Patch: An In Vivo Proof of Concept Study.

BACKGROUND: Traumatic injuries cause millions of deaths annually, with intra-abdominal hemorrhage as a leading cause. Achieving hemostasis remains challenging. This study evaluates the hemostatic properties of a novel biocompatible cyanoacrylate-polylactic acid patch. METHODS: Thirty-six male Wistar rats were randomized into three groups (control, study, and TachoSil(®)) and underwent a standardized liver resection. The hemostasis times were recorded, and blood samples were drawn to assess hemoglobin, hematocrit, and cytokine levels (IL-6 and TNF-α) using validated assays. RESULTS: In the study group, a median time to hemostasis of 94 s was recorded, compared with 256 s for electrocautery (p < 0.001) and 120 s for TachoSil(®) (p = 0.010). Hemoglobin levels significantly decreased postoperatively in all groups, with the TachoSil(®) group showing the lowest median value (from 15.4 g/dL to 11.9 g/dL, p = 0.006). Furthermore, only the TachoSil(®) group exhibited a marked inflammatory response with a significant rise in IL-6 (from 15.6 to 26.8 pg/mL, p = 0.04) and TNF-α (from 9.8 to 28.6 pg/mL, p = 0.01). CONCLUSIONS: The results demonstrated that the novel cyanoacrylate-polylactic acid patch achieved rapid hemostasis and was associated with reduced inflammatory responses compared with both electrocautery and TachoSil(®). These findings suggest that this hybrid material may offer a safer and more effective hemostatic alternative.