Use of a hyaluronate membrane for jejunal anastomosis in horses.

The research explores the effectiveness of a hyaluronate membrane in small intestinal surgery on horses. The study finds the combined hyaluronate-membrane single-layer anastomosis (SLA+HA-membrane) method to be faster and more productive, in terms of fewer adhesions and a larger stomal diameter, than other established methods.

Research Methodology

• The scientists conducted the study on 18 adult horses
• Three methodologies for intestines surgery were used: Double-layer inverting anastomosis(DIA), Single-layer anastomosis (SLA), and Single-layer anastomosis combined with a hyaluronate membrane (SLA+HA-membrane)
• The horses were grouped into three sets of six, each undergoing a different surgical anastomosis technique
• Midline celiotomy and end-to-end anastomoses were performed on all animals
• After 21 days post-surgery, the horses were euthanized and evaluated for various parameters like adhesion formation, stomal diameters, anastomotic healing and surgery times

Results and Analysis

• The SLA group had the most adhesions, significantly more than the DIA and SLA+HA-membrane groups
• The DIA group had the greatest reduction in stomal diameters, significantly more than the SLA and SLA+HA-membrane groups
• The DIA technique took the longest surgery time, much longer than the SLA and SLA+HA-membrane methods
• Fibrosis, inflammation, and mucosal healing were comparable in all groups according to histologic findings
• The DIA technique resulted in substantial tissue inversion compared to the other two methods
• Tissue alignment was not significantly different among the groups

Conclusions

• The research concluded that the use of the SLA+HA-membrane technique was most effective for small intestinal anastomosis in horses
• Compared to the DIA method, this combined approach was quicker, resulted in a larger stomal diameter, and fewer perianastomotic adhesions
• It also led to significantly fewer adhesions than the SLA method.