Mickaël P Robert, Camille Buyck, Cyril Tricaud, Matthieu Cousty, Raymond Pujol
{"title":"Radical surgical excision of extensive perianal melanomas on standing horses: Twenty cases.","authors":"Mickaël P Robert, Camille Buyck, Cyril Tricaud, Matthieu Cousty, Raymond Pujol","doi":"10.1111/vsu.14192","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To report a radical surgical technique for perianal melanomas involving the anal margin in standing horses.</p><p><strong>Study design: </strong>Observational retrospective study.</p><p><strong>Sample population: </strong>Twenty client-owned horses presented for surgical excision of extensive (≥4 cm) perianal melanomas.</p><p><strong>Methods: </strong>Demographic data, surgical technique, intraoperative, immediate- and late-postoperative complications were reviewed.</p><p><strong>Results: </strong>All horses (median age 15, Q1-Q3 12 to 17.3 years) were operated under standing sedation and epidural anesthesia. Median hospitalization period was 6.5 days (Q1-Q3 5 to 8.3 days). The anal margin was fully resected in 14 cases. A deep perirectal dissection was performed in 16 cases. Eight cases required additional local anesthetics. One case bled profusely during and after the procedure. One case became recumbent during the procedure, showed intense postoperative pain, and was eventually euthanized 6 weeks later because of ataxia. During hospitalization, one horse displayed colic signs and 10 others required manual evacuation of the rectum because of decreased fecal output. Complications after hospital discharge included mild colic signs (n = 4), partial wound dehiscence (n = 1) and hypergranulation of the wound (n = 2). All other cases healed without complications in 6 to 12 weeks. Median follow-up period was 11.8 months (Q1-Q3 6.3 to 27.2 months). Six horses developed new melanomas with only one in the perianal region.</p><p><strong>Conclusion: </strong>This technique of surgical excision of extensive perianal melanomas was efficiently performed on standing horses with minimal local recurrence. This procedure led to high client satisfaction. Early postoperative pain was commonly encountered. Owners should be warned of the potentially large surgical wound that will be created.</p><p><strong>Clinical significance: </strong>This technique allowed for removal of large perianal melanomas with limited recurrence during the long term follow up and may improve the quality of life of affected horses.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary Surgery","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1111/vsu.14192","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: To report a radical surgical technique for perianal melanomas involving the anal margin in standing horses.
Study design: Observational retrospective study.
Sample population: Twenty client-owned horses presented for surgical excision of extensive (≥4 cm) perianal melanomas.
Methods: Demographic data, surgical technique, intraoperative, immediate- and late-postoperative complications were reviewed.
Results: All horses (median age 15, Q1-Q3 12 to 17.3 years) were operated under standing sedation and epidural anesthesia. Median hospitalization period was 6.5 days (Q1-Q3 5 to 8.3 days). The anal margin was fully resected in 14 cases. A deep perirectal dissection was performed in 16 cases. Eight cases required additional local anesthetics. One case bled profusely during and after the procedure. One case became recumbent during the procedure, showed intense postoperative pain, and was eventually euthanized 6 weeks later because of ataxia. During hospitalization, one horse displayed colic signs and 10 others required manual evacuation of the rectum because of decreased fecal output. Complications after hospital discharge included mild colic signs (n = 4), partial wound dehiscence (n = 1) and hypergranulation of the wound (n = 2). All other cases healed without complications in 6 to 12 weeks. Median follow-up period was 11.8 months (Q1-Q3 6.3 to 27.2 months). Six horses developed new melanomas with only one in the perianal region.
Conclusion: This technique of surgical excision of extensive perianal melanomas was efficiently performed on standing horses with minimal local recurrence. This procedure led to high client satisfaction. Early postoperative pain was commonly encountered. Owners should be warned of the potentially large surgical wound that will be created.
Clinical significance: This technique allowed for removal of large perianal melanomas with limited recurrence during the long term follow up and may improve the quality of life of affected horses.
期刊介绍：
Veterinary Surgery, the official publication of the American College of Veterinary Surgeons and European College of Veterinary Surgeons, is a source of up-to-date coverage of surgical and anesthetic management of animals, addressing significant problems in veterinary surgery with relevant case histories and observations.
It contains original, peer-reviewed articles that cover developments in veterinary surgery, and presents the most current review of the field, with timely articles on surgical techniques, diagnostic aims, care of infections, and advances in knowledge of metabolism as it affects the surgical patient. The journal places new developments in perspective, encompassing new concepts and peer commentary to help better understand and evaluate the surgical patient.
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