Reconstruction of single large abdominal wall defects in 2 dogs using expanded polytetrafluoroethylene-based mesh.

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Repairing large abdominal wall defects in veterinary medicine is challenging. Polypropylene mesh is the synthetic mesh most used for reconstructions. However, adhesion formation has been reported with its use. We report the reconstruction of large abdominal wall defects using expanded polytetrafluoroethylene (ePTFE)-based meshes in 2 dogs. A 5-year-old intact male Bernese mountain dog weighing 35.5 kg and a 10-year-old castrated male miniature dachshund weighing 7.16 kg were referred to our hospital. The former was treated for a large abdominal wall tumor; and the latter, for the recurrence of a left inguinal hernia. Dogs 1 and 2 underwent repair of the abdominal wall defects caused by the tumor resection and recurrent inguinal hernia repair using an ePTFE-polypropylene composite and ePTFE meshes, respectively. No complications of abdominal wall hernia recurrence or ePTFE infection occurred; however, Dog 1 had local progression of the tumor on Day 50 after surgery and died on Day 218 after surgery. Dog 2 had no recurrence or complications, according to a telephone interview with the owner on Day 665 after surgery. Therefore, the ePTFE-based mesh may be suitable for use in similar cases with favorable outcomes. Key clinical message: The ePTFE-based meshes may be applied to treat abdominal wall defects in dogs. However, it is essential to understand the advantages and disadvantages of these materials.

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