Studying the Efficacy of Local Hemostatic Agents In Vivo

Introduction: In modern clinical practice, there is no common and effective hemostatic agent for solid organs of the abdomen. Local agents such as hemostatic sponges, membranes, powders seem promising. The main advantages of hemostatic powders include relatively high efficacy, portability, versatility, as well as simplicity and low cost of manufacturing.

Objective: To study the hemostatic efficacy of hemostatic powders’ samples based on the sodium salt of carboxymethylcellulose (Na-CMC) in an acute in vivo experiment.

Materials and methods: The study was based at Kursk State Medical University. Fifty male Wistar rats (weighing 220-239 g) were selected as test animals. They were evenly divided into 5 groups: ARISTA AH, Cutanplast Powder, and Na-CMC hemostatic powders with 3 different dynamic viscosities: low (50-200 cP), medium (400-800 cP) and high (1500-3000 cP). Under general inhalation anesthesia, median laparotomy was performed in Wistar rats, the middle lobe of the liver was removed into the wound, and then marginal tangential resection was performed. We applied hemostatic powders of each group to the resulting wound, and then estimated the bleeding time and the volume of blood loss. We used the Mann-Whitney test (P ≤ .05) to assess the statistical significance of differences between the study groups.

Results: We recorded the minimum bleeding time and the smallest volume of blood loss for the samples based on the Na-CMC and found no statistically significant differences between the viscosities groups.

Conclusions: With Na-CMC hemostatic powder the bleeding time and the volume of blood loss were reduced by 3.6 and 2.2 times, respectively, comparing to the control group. These results were considered statistically significant (P ≤ .05).

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