Faculty of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, Brazil.
Faculty of Veterinary Medicine, Ceara State University, Fortaleza, Brazil.
J Feline Med Surg. 2022 Dec;24(12):e611-e617. doi: 10.1177/1098612X221128781. Epub 2022 Dec 1.
The purpose of this study was to evaluate the correlation between clinical aspects and urethral lesions with reproductive status and age at neutering in obstructed male cats.
All cats with compatible signs of urethral obstruction (UO) treated at the Veterinary Hospital of the Federal Rural University of Pernambuco from 2019 to 2021 were divided into three groups according to their reproductive status: intact; prepubertal neutered; and post-pubertal neutered. Cats with compatible signs of UO were selected for further analysis. Age, clinical signs, age at neutering and age of the first obstructive event were documented. Cats with recurrent obstructive urinary signs or urethral trauma that made catheterization impossible were referred for perineal urethrostomy. The morphology of the excised penises was assessed by histopathological analysis.
Of 84 cats with signs of UO included in this study, 28.6% were classified as intact, 28.6% as prepubertal neutered and 42.8% as post-pubertal neutered. Intact cats had a significantly earlier onset of UO compared with prepubertal and post-pubertal neutered cats, as seen by the age at obstruction (3.6 vs 5.7 and 5.5 years, respectively). Similar clinical signs and histopathological lesions were observed in all groups. The main clinical signs observed were stranguria, hematuria and pollakiuria. All cats had some degree of injury in the penile urethra. The most common lesions were hemorrhage, fibrosis and congestion.
It appears that intact cats had an earlier onset of UO than neutered cats, regardless of age at neutering. Urethral histopathological lesions and clinical signs were similar in both groups. Pediatric neutering represents a useful tool in the control of abandoned and stray animals and the consequent dissemination of zoonoses, thus having a positive impact on public health.
本研究旨在评估临床特征与尿道病变与雄性猫阻塞性尿失禁（UO）的生殖状态和去势年龄的相关性。
2019 年至 2021 年，所有在联邦农村大学佩洛塔斯兽医医院接受治疗且具有 UO 临床表现的雄性猫均根据其生殖状态分为三组：未去势、去势前（青春期前）和去势后（青春期后）。对具有 UO 临床表现的猫进行进一步分析。记录了年龄、临床症状、去势年龄和首次梗阻事件的年龄。对于反复出现阻塞性尿症状或尿道创伤导致导尿困难的猫，转诊进行会阴尿道造口术。通过组织病理学分析评估切除阴茎的形态。
在本研究中，84 只具有 UO 临床表现的猫中，28.6%被归类为未去势，28.6%为去势前（青春期前），42.8%为去势后（青春期后）。未去势的猫与去势前和去势后的猫相比，UO 的发病年龄更早，梗阻年龄分别为 3.6 岁、5.7 岁和 5.5 岁。所有组均观察到相似的临床症状和组织病理学病变。主要的临床症状是排尿困难、血尿和多尿。所有猫的阴茎尿道均有不同程度的损伤。最常见的病变是出血、纤维化和充血。
未去势的猫与去势的猫相比，UO 的发病年龄更早，而与去势年龄无关。两组的尿道组织病理学病变和临床症状相似。儿科去势术是控制被遗弃和流浪动物以及随之传播的人畜共患病的有用工具，因此对公共健康具有积极影响。
