Kasetsart University Veterinary Teaching Hospital Hua Hin, Faculty of Veterinary Medicine, Kasetsart University, Prachuap Khiri Khan, Thailand.
Veterinary Research and Academic Service, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand.
J Am Vet Med Assoc. 2021 Nov 12;260(1):56-63. doi: 10.2460/javma.20.09.0540.
To evaluate the feasibility of buccal mucosal graft urethroplasty for repairing complete urethral rupture in cats.
15 male domestic shorthair cats with traumatic complete urethral rupture.
In each cat, a section of buccal mucosa was harvested, sutured, and formed into a tubule by use of an 8F indwelling catheter as support. This tubular graft was connected to both ruptured ends of the urethra to renew the urinary passage. The catheter was left in place until the absence of leakage was confirmed by positive contrast retrograde urethrography. After spontaneous urination was confirmed, cats were discharged from the hospital. Six months later, urethrography was repeated and owners were asked to score their cats' urinary function and quality of life.
13 cats recovered well following surgery, with no complications in the oral cavity or surgical site and no signs of difficulty or discomfort when urinating. Urethrography 2 weeks and 6 months after surgery revealed no stricture or leakage in the abdominal cavity. The 2 remaining cats developed a urethral stricture and underwent second surgery with a successful outcome. At the 6-month follow-up, 14 cats had only mild urinary signs, and 1 cat had incontinency. Owners indicated they were delighted (n = 14) or pleased (1) with their cats' quality of life.
Buccal mucosa was found to be a good source of graft tissue for performance of urethroplasty in male cats, yielding satisfactory outcomes with few postoperative complications. The described technique may be suitable for severe and complicated cases of urethral rupture in male cats.
评估颊黏膜移植尿道成形术修复猫完全性尿道断裂的可行性。
15 只雄性家短毛猫，外伤性完全性尿道断裂。
每只猫均采集一段颊黏膜，用 8F 留置导尿管作为支撑，缝合并形成管状。该管状移植物连接尿道的两个断裂端，以重建尿流通路。留置导尿管，直至阳性对比逆行尿道造影证实无渗漏。确认自主排尿后，猫出院。6 个月后，重复行尿道造影，询问主人猫的排尿功能和生活质量评分。
13 只猫术后恢复良好，口腔或手术部位无并发症，排尿时无困难或不适迹象。术后 2 周和 6 个月行尿道造影显示，腹部无狭窄或渗漏。其余 2 只猫发生尿道狭窄，再次手术成功。6 个月随访时，14 只猫仅有轻度排尿症状，1 只猫出现尿失禁。主人表示对猫的生活质量非常满意（14 只）或满意（1 只）。
颊黏膜是雄性猫行尿道成形术的良好移植物组织来源，术后并发症少，结果满意。该技术可能适用于雄性猫严重且复杂的尿道断裂病例。
