Polyglycolic acid mesh in experimental renal trauma

Area of Science:

• Nephrology
• Surgical Innovation
• Biomaterials Science

Background:

• Renal trauma management presents challenges in controlling hemorrhage and preserving kidney function.
• Existing treatments for severe kidney lacerations may compromise renal function.

Purpose of the Study:

• To evaluate the efficacy of polyglycolic acid (PGA) mesh for controlling hemorrhage and preserving renal function in dogs with extensive kidney lacerations.
• To compare PGA mesh wrapping with partial nephrectomy for treating lower pole kidney injuries.

Main Methods:

• Dogs with surgically induced kidney lacerations were treated with PGA mesh wrapping.
• Renal function was assessed by measuring creatinine clearance ratios between injured and contralateral kidneys.
• Hemostasis, healing, and complications like infection and hypertension were monitored.

Main Results:

• PGA mesh wrapping achieved prompt and sustained hemostasis, with well-healed lacerations at 21 days.
• Dogs treated with PGA mesh for extensive lacerations showed a mean creatinine clearance ratio of 0.83.
• For lower pole lacerations, PGA mesh wrapping resulted in a higher creatinine clearance ratio (0.93) compared to partial nephrectomy (0.58).
• No significant hypertension was observed post-wrapping, and infection was rare.

Conclusions:

• PGA mesh kidney wrapping is an effective method for controlling hemorrhage and preserving renal function after significant renal injury in dogs.
• The findings suggest PGA mesh wrapping may be a valuable clinical option for managing selected human renal injuries, potentially offering better functional outcomes than partial nephrectomy.