The use of interfascial blocks for complex analgesia in the surgical resicrion of soft tissue tumors in the chest area in kompanion animals

Achieving satisfactory results of surgical treatment of cancer patients is impossible without pain control both intraoperatively and in the early postoperative period. The inclusion of regional anesthesia in multimodal pain control protocols can significantly improve the quality of analgesia and accelerate patient recovery after surgery. Nevertheless, each method of interfascial plane block has its own indications, contraindications, and complications. The purpose of our study was to show the validity and effectiveness of the use of regional anesthesia in the form of interfascial plane blocks during surgical resection of soft tissue tumors in the chest area in companion animals. The study were included 49 animals (30 dogs and 19 cats) who underwent surgery resection of soft tissue tumors in the chest area. The criterion for the inclusion of animals in the study was the use of regional anesthesia in the form of interfascial plane blocks in the anesthesia protocol. As a result of the study, it was revealed that the combination of several interfascial blocks provides a significantly better level of analgesia in resection of volumetric formations in the early postoperative period, however, when performing a unilateral mastectomy, the combination of a transversus abdominis plane block with a erector spinae plane block does not reduce the postoperative pain level. In mastectomies involving the cranial mammary glands, the best result for postoperative anesthesia is shown by the use of serratus anterior plane block. The inclusion of interfascial plane blocks in the anesthesia protocol for oncological patients makes it possible to significantly reduce or eliminate the use of narcotic analgesics in the perioperative period and, accordingly, avoid side effects and complications associated with the use of narcotic drugs, which is especially important for debilitated and geriatric patients.