Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Aspectos clínicos, cirúrgicos, histológicos e urinários de seis cães submetidos à penectomia total

2015; UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; Volume: 43; Issue: 2 Linguagem: Inglês

1679-9216

Thalita Priscila Peres Seabra da Cruz, Amar Afif Jarrah, Érica Pereira da Silva, Lianna Ghisi Gomes, David Ronald Parra Travagin, Samara Rosolem Lima, Alexandre Pinto Ribeiro,

Veterinary Oncology Research

Background: In dogs, penectomy followed by uretrostomy has been little reported in the veterinary literature. These surgical procedures are indicated in cases of penile trauma and/or neoplasms as well in scrotal and preputial neoplasms. After uretrostomias is commonly observed bleeding site by approximately 4.2 days. However, studies reporting the incidence of UTI in the postoperative period of dogs submitted to penectomy, followed by scrotal urethrostomy have never been evaluated. Thus, the aim was report the evolution of dogs operated by this technique, theirs complications and the histological results, urinalysis and uroculture in patients with 60 days post-operative. Case: In the study period of 17 months (March 2013 to July 2014), nine dogs showed various neoplastic diseases involving the penis, prepuce, scrotum and testicles. In nine selected dogs to the study, only six were considered due to patient death before the minimum period used for postoperative evaluation. After surgery, the genital tract along the resected neoformation were conditioned to 10% formalin and sent to the Veterinary Pathology Laboratory for tissue analysis in light microscopy. All patients remained in hospital in the postoperative period about a week, receiving medications intravenously, execution of dressing every 12 h and evaluation of possible postoperative complications such as dehiscence suture and post-micturition urethral bleeding. The dehiscence occurred only in the skin adjacent the region, keeping the firm urethrocutaneous junction points. Patients were discharged only after the complete absence of bleeding which took four to seven days. The use of the Elizabethan collar was recommended until the removal of skin and urethral points, held approximately 15 days after surgery. The patients’ owners who had more than 60 days after surgery, were contacted by telephone and asked for a return to postoperative assessment and collection of blood and urine, in order to investigate the occurrence of possible physiological changes caused by the surgical procedure of penectomy associated with scrotal urethrostomy. All owners reported a slight change in the appearance of urine, lack of difficulty / urinary incontinence and degree of dermatitis near uretrostomy ranging from absent to mild. Few changes related to the urinary tract were observed in the urinalysis and urinary infection rate was low. However, two of the six dogs were euthanized, due to the aggressive development of visceral metastases, which occurred within two to five months in these cases. All patients had complete healing in the urestrostomia region without the occurrence of obstruction or stenosis. The owners reported satisfactory adaptation of the patients the procedure and absence of local complications to the endpoint. Although this retrospective study presents some limitations such as the small number of cases, it can be concluded that the immediate complications that follow penectomy are associated with scrotal urethrostomy, being absent after skin and urethral cicatrization. These procedures do not cause significant urinary changes in canine patients, which showed little change in the urinalysis and low urinary infection rate after 60 days. The prognosis depends on the primary disease, being unfavorable in cancer patients at risk for metastasis. So, it is important the regular monitoring of patients for possible revaluation of distant metastasis and operated site.