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1.
N Z Vet J ; 71(2): 92-99, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36281557

RESUMO

CASE HISTORY: Medical records were reviewed for cats that underwent surgical treatment of traumatic ureteral rupture (TUR) using urinary diversion procedures between 2012 and 2019. CLINICAL FINDINGS AND TREATMENT: Five cats had presented with injuries associated with road traffic accidents. These included three cats with abdominal hernias that required surgical management. At a median of 15 days after the accident, cats represented with lethargy, the presence of an abdominal mass or with lower urinary tract symptoms and in all cats contrast diagnostic imaging showed proximal unilateral TUR with associated para-ureteral urinoma. Four cats received subcutaneous ureteral bypass (SUB) device placement and one had ureteral anastomosis over a stent. Unilateral cyst-like retroperitoneal fluid consistent with para-ureteral urinoma was observed in all cats and a diffuse retroperitoneal haematoma was noticed in four cats. No immediate major complications occurred, and all cats had post-operative serum creatinine concentration within the reference interval. The cat that had received a ureteral stent subsequently required placement of a SUB following stent encrustation 15 months after surgery. Median follow-up time was 34 (min 28, max 58) months and renal function was normal in all cats at the last follow-up. CLINICAL RELEVANCE: Urinary diversion procedures provided long-term stable renal function following proximal TUR in these five cats. Delayed, subtle non-specific clinical signs subsequent to high-energy blunt trauma causing abdominal hernia and associated diffuse retroperitoneal haematoma, should raise suspicion of TUR. ABBREVIATIONS: AFAST: Abdominal focused assessment with sonography for trauma; SUB: Subcutaneous ureteral bypass; TUR: Traumatic ureteral rupture.


Assuntos
Doenças do Gato , Ureter , Obstrução Ureteral , Derivação Urinária , Urinoma , Ferimentos não Penetrantes , Gatos , Animais , Obstrução Ureteral/cirurgia , Obstrução Ureteral/veterinária , Urinoma/etiologia , Urinoma/cirurgia , Urinoma/veterinária , Ureter/cirurgia , Ureter/lesões , Derivação Urinária/veterinária , Ferimentos não Penetrantes/complicações , Ferimentos não Penetrantes/cirurgia , Ferimentos não Penetrantes/veterinária , Ruptura/cirurgia , Ruptura/veterinária , Doenças do Gato/etiologia , Doenças do Gato/cirurgia , Estudos Retrospectivos
2.
J Vet Med Sci ; 85(2): 180-184, 2023 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-36517012

RESUMO

An intact, male mixed-breed cat approximately 3 months of age was referred to Iwate University Veterinary Teaching Hospital with dysuria that developed after a traffic accident. At the initial visit, a cystostomy tube was placed as a temporal urinary diversion. Antegrade urethrography revealed severe stenosis of the intrapelvic urethra. A prepubic urethrostomy (PPU) with formation of a convex urethral stoma was performed 22 days after the first visit. Twenty-four months after surgery, the cat could urinate smoothly in a standing position, although a small amount of intermittent leakage was observed immediately after getting up. There was no evidence of peristomal dermatitis. Therefore, the formation of a convex urethral stoma may effectively prevent peristomal dermatitis in cats who undergo PPU.


Assuntos
Doenças do Gato , Dermatite , Derivação Urinária , Gatos , Masculino , Animais , Uretra/cirurgia , Hospitais Veterinários , Hospitais de Ensino , Derivação Urinária/veterinária , Dermatite/veterinária , Doenças do Gato/cirurgia
3.
Vet Med Sci ; 7(5): 1483-1487, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34237193

RESUMO

A 9-year-old neutered male Dachshund dog was assessed for stranguria. An enlarged prostate was identified on physical examination, and a diagnosis of prostatic carcinoma confirmed by cytology. Due to a neoplastic lower urinary tract obstruction, palliative surgical urinary diversion treatment was performed with laparoscopic assisted cutaneous ureterostomy (LACU). The dog recovered well without any major complications. Adjuvant chemotherapy was maintained and continued for post-surgical medical therapy. This report describes a novel minimally invasive assisted technique in canine patients for palliative treatment of prostatic neoplasia.


Assuntos
Carcinoma , Doenças do Cão , Laparoscopia , Derivação Urinária , Animais , Carcinoma/veterinária , Doenças do Cão/cirurgia , Cães , Laparoscopia/veterinária , Masculino , Ureterostomia/métodos , Ureterostomia/veterinária , Derivação Urinária/métodos , Derivação Urinária/veterinária
4.
Can Vet J ; 59(4): 385-387, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29606724

RESUMO

An 8-year-old, European male shorthair cat was presented with lower urinary tract obstruction. He was catheterized and referred. Retrograde cysto-urethrography suggested a urethral mass. Intussusception of the urethra with a partial rupture of the urethra was visualized. A perineal urethrostomy was performed. The cat was clinically normal at 15 months' follow-up.


Invagination urétrale secondaire à un cathétérisme traumatique chez un chat mâle. Un chat européen male de 8 ans présentant des signes d'obstruction du bas appareil urinaire a été cathéterisé et référé. L'urétrographie rétrograde suggérait une masse urétrale. Une intussusception de l'urètre avec une rupture partielle de l'urètre a été visualisée. Une urétrostomie périnéale a été réalisée. Le chat était cliniquement normal 15 mois après l'intervention.(Traduit par les auteurs).


Assuntos
Doenças do Gato/diagnóstico , Obstrução Uretral/veterinária , Cateterismo Urinário/veterinária , Animais , Doenças do Gato/cirurgia , Gatos , Doença Iatrogênica/veterinária , Masculino , Uretra/lesões , Obstrução Uretral/diagnóstico , Obstrução Uretral/cirurgia , Cateterismo Urinário/efeitos adversos , Derivação Urinária/veterinária
5.
Can Vet J ; 56(1): 73-80, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25565719

RESUMO

The cases of 10 dogs with transitional cell carcinoma of the urinary bladder that underwent total cystectomy were retrospectively reviewed to evaluate the feasibility and outcome of total cystectomy and ureteral transplantation to the prepuce or vagina. Dehiscence of ureterostomy (n = 2), pyelonephritis (n = 3), oliguria (n = 2), azotemia (n = 1), and ureteral obstruction (n = 1) were observed complications. The estimated median survival time was 385 days. This study demonstrates the feasibility of total cystectomy and subsequent urinary diversion to the prepuce or vagina in dogs. Compared to previous ureterocolonic anastomosis, this technique is associated with fewer gastrointestinal and neurologic complications.


Cystectomie totale et diversion urinaire subséquente au prépuce ou au vagin de chiens atteints du carcinome transitionnel de la région du trigone vésical : rapport sur 10 cas (2005­2011). Les cas de 10 chiens atteints du carcinome transitionnel de la vessie urinaire qui avaient subi une cystectomie totale ont été examinés rétrospectivement afin d'évaluer la faisabilité et les résultats d'une cystectomie totale et d'une transplantation urétérale au prépuce ou au vagin. La déhiscence de l'urétérostomie (n = 2), la pyélonéphrite (n = 3), l'oligurie (n = 2), l'azotémie (n = 1) et une obstruction urétérale (n = 1) figuraient parmi les complications observées. L'estimation de la durée médiane de survie était de 385 jours. Cette étude démontre la faisabilité d'une cystectomie totale et d'une diversion urinaire subséquente vers le prépuce ou le vagin chez les chiens. Comparativement à l'anastomose urétérocolique antérieure, cette technique est associée à moins de complications gastro-intestinales et neurologiques.(Traduit par Isabelle Vallières).


Assuntos
Carcinoma de Células de Transição/veterinária , Cistectomia/veterinária , Doenças do Cão/cirurgia , Neoplasias da Bexiga Urinária/veterinária , Derivação Urinária/veterinária , Animais , Carcinoma de Células de Transição/cirurgia , Cães , Feminino , Masculino , Estudos Retrospectivos , Neoplasias da Bexiga Urinária/cirurgia , Derivação Urinária/métodos
6.
J Small Anim Pract ; 51(6): 325-9, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20492455

RESUMO

An eight-year-old male Staffordshire bull terrier was presented with a bleeding mass in the urethral mucosa 1.5 cm distal to the ischial arch. After cytological findings suggestive of a squamous cell carcinoma and confirmation of the mass with urethroscopy, total penile amputation followed by transpelvic urethrostomy using an ischial symphyseal ostectomy was performed. The procedure successfully produced a tension-free anastomosis of the urethra to the skin in the scrotal position and no major complications were observed in the postoperative period. Histologically, the lesion was reported as a ruptured vascular structure with thrombosis and repair tissue. Seven months after surgery the dog is free of clinical signs.


Assuntos
Amputação Cirúrgica/veterinária , Doenças do Cão/cirurgia , Doenças do Pênis/veterinária , Pênis/cirurgia , Obstrução Uretral/veterinária , Animais , Cães , Masculino , Doenças do Pênis/cirurgia , Resultado do Tratamento , Obstrução Uretral/cirurgia , Derivação Urinária/veterinária , Micção/fisiologia
7.
J Feline Med Surg ; 9(6): 481-6, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17988915

RESUMO

Fifteen cats were evaluated with urethral obstruction. Penile trauma by catheterization was the major indication for perineal urethrostomy. Ten cats had developed a urethral stricture and five had rupture of the urethra following medical management. All cats had abnormalities in penis and/or prepuce and/or scrotal sacs including hyperemia or swelling. Perineal urethrostomy was performed in all cases and they were evaluated for 6 months after surgery. Few complications were noted. Urinary tract infection was the most frequent complication observed. The clients considered their cats to have a good quality of life following surgery.


Assuntos
Doenças do Gato/diagnóstico , Doenças do Gato/epidemiologia , Uretra/lesões , Obstrução Uretral/veterinária , Cateterismo Urinário/veterinária , Animais , Brasil/epidemiologia , Gatos , Doença Iatrogênica/veterinária , Masculino , Complicações Pós-Operatórias/veterinária , Obstrução Uretral/diagnóstico , Obstrução Uretral/epidemiologia , Cateterismo Urinário/efeitos adversos , Derivação Urinária/estatística & dados numéricos , Derivação Urinária/veterinária
8.
J Am Anim Hosp Assoc ; 42(3): 218-22, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16611934

RESUMO

Eleven cats required urethral stoma revision because of urethral stricture following perineal urethrostomy. At surgery, eight cats had evidence of inadequate dissection to the bulbourethral glands, and three cats had evidence of urine extravasation into the subcutaneous tissues. Following revision of the stoma, long-term follow-up was obtained in nine cases. For eight cats, owners reported no complications after the revision. Failure to dissect beyond the bulbourethral glands and inadequate mucosa-to-skin apposition resulted in postoperative stricture formation. Stoma revisions were performed a median of 71 days following the initial perineal urethrostomy, indicating that long-term evaluation of cases is necessary.


Assuntos
Doenças do Gato/cirurgia , Reoperação/veterinária , Uretra/cirurgia , Doenças Uretrais/veterinária , Obstrução Uretral/veterinária , Animais , Gatos , Masculino , Complicações Pós-Operatórias/cirurgia , Complicações Pós-Operatórias/veterinária , Estudos Retrospectivos , Resultado do Tratamento , Uretra/patologia , Doenças Uretrais/cirurgia , Obstrução Uretral/cirurgia , Derivação Urinária/métodos , Derivação Urinária/veterinária
9.
J Zoo Wildl Med ; 37(3): 381-6, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17319139

RESUMO

A chimpanzee (Pan troglodytes) with traumatic loss of the distal penis developed a gradually enlarging ventral urethral swelling and progressive dysuria. Endoscopy identified a urethral diverticulum, and endoscopic resection of the diverticulum wall was performed. Postoperative infection caused extensive necrosis of the penis, which necessitated a perineal urethrostomy. Complications of the urethrostomy included urethral obstruction from recurrent urethral stricture. The stricture was managed by regular dilatation using urethral bougies. Because of considerable postoperative swelling, catheterization was required to allow micturition following both the diverticular resection and polyp debulking. A shortened catheter sutured to the skin was tolerated for up to 10 days. Four yr after the urethrostomy, the animal is healthy and asymptomatic with endoscopic examinations performed at 12 mo intervals. This case demonstrates that with appropriate aftercare, perineal urethrostomy is an effective technique in the treatment of chronic distal urethral obstruction in the chimpanzee and probably other primate species.


Assuntos
Doenças dos Símios Antropoides/cirurgia , Pan troglodytes , Cuidados Pós-Operatórios/veterinária , Obstrução Uretral/veterinária , Procedimentos Cirúrgicos Urológicos Masculinos/veterinária , Animais , Masculino , Períneo/cirurgia , Cuidados Pós-Operatórios/normas , Resultado do Tratamento , Obstrução Uretral/cirurgia , Derivação Urinária/métodos , Derivação Urinária/veterinária , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
10.
J Small Anim Pract ; 46(5): 227-31, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15909445

RESUMO

OBJECTIVES: To evaluate indications for and outcome of perineal urethrostomy in cats. METHODS: The medical records of 59 cats that had undergone perineal urethrostomy were evaluated. Short-term follow up information (for a period of four weeks following surgery) was available for all of the cats. Long-term follow up information (for a period of at least four months) was available for 39 cats. RESULTS: Early complications occurred in 25.4 per cent of cats and late complications were observed in 28.2 per cent of cats. The most frequent late complication was recurring bacterial urinary tract Infection. CLINICAL SIGNIFICANCE: Despite frequent complications and recurring signs of lower urinary tract disease, 32.2 per cent of the cats had a disease-free long-term outcome (mean four years, median 3.9 years), and 88.6 per cent of clients interviewed thought that their cats had a good quality of life after surgery.


Assuntos
Doenças do Gato/cirurgia , Uretra/cirurgia , Doenças Uretrais/veterinária , Derivação Urinária/veterinária , Animais , Gatos , Masculino , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/veterinária , Qualidade de Vida , Recidiva , Estudos Retrospectivos , Resultado do Tratamento , Doenças Uretrais/cirurgia , Derivação Urinária/métodos , Infecções Urinárias/epidemiologia , Infecções Urinárias/etiologia , Infecções Urinárias/veterinária
11.
Vet Surg ; 33(3): 246-52, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15104631

RESUMO

OBJECTIVE: To investigate the feasibility and long-term outcome of a modified subpubic urethrostomy technique termed transpelvic urethrostomy (TPU) in cats. STUDY DESIGN: Prospective clinical study. ANIMALS: Eleven male cats with obstructive lower urinary tract disease that could not be relieved, and requiring a surgical urinary diversion, were selected for TPU. METHODS: With the cat in dorsal recumbency, the penis was exposed and the ventral pelvis was denuded by median adductor muscle elevation. An approximately 12 mm x 15 mm area of ischium was removed. The pelvic urethra, 8-20 mm cranial to the bulbourethral glands, was incised longitudinally and sutured to the skin to create a urethrostomy. RESULTS: All cats were neutered males (2-9 years); none were uremic or hyperkalemic at admission. Urine was cultured if there was leukocyturia, nitrituria, and/or bacteriua. Bacteria were isolated from 2 specimens. A patent urethrostomy was created in all cats without operative complications. Except for 1 cat without associated clinical signs, stricture was not evident between 9 and 42 months after urethrostomy. One cat had postoperative urinary incontinence (UI) that resolved within 4 weeks. Two cats each had 1 episode of idiopathic lower urinary tract disease after 6-month follow-up; both responded to medical therapy. CONCLUSIONS: TPU was used as a successful urinary diversion procedure relieving signs of urinary tract obstruction and preventing further obstruction, with few complications. The incidence of UI after TPU remains minimal. CLINICAL RELEVANCE: TPU should be considered as a salvage urinary diversion procedure in cats (as an alternative to prepubic and subpubic techniques). TPU may also be considered as a possible primary urinary diversion solution (an alternative to perineal urethrostomy) for obstructive lower urinary tract disease in cats.


Assuntos
Doenças do Gato/cirurgia , Sínfise Pubiana/cirurgia , Obstrução Uretral/veterinária , Derivação Urinária/veterinária , Animais , Doenças do Gato/patologia , Gatos , Masculino , Estudos Prospectivos , Resultado do Tratamento , Obstrução Uretral/cirurgia , Derivação Urinária/métodos
12.
Vet Surg ; 30(2): 107-13, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11230764

RESUMO

OBJECTIVE: To investigate the indications for and long-term outcome of prepubic urethrostomy (PPU) in the cat. STUDY DESIGN: Retrospective survey. ANIMALS: Sixteen cats that had undergone PPU. METHODS: Data were recovered from the medical records of the cats. Follow-up information was obtained from the owners and referring veterinarians. RESULTS: Indications for PPU were: failed perineal urethrostomy for the management of idiopathic lower urinary tract disease (ILUTD) (8 cats) or urethral trauma (1 cat); unresolved pelvic urethral obstruction after recurrent ILUTD (5 cats); and stenosis of the pelvic urethra as a result of trauma (2 cats). A patent urethral stoma was created in all cases. Signs of lower urinary tract disease were present in 8 cats postoperatively. With appropriate dietary management, these signs resolved in 2 cats and improved in another 4 cats. Eleven cats experienced postoperative complications that consisted of peristomal skin irritation or necrosis (7 cats) and urinary incontinence (6 cats). Complications developed in the immediate postoperative period in 6 cats, and resolved in 2 of these. Six cats developed late complications, at 6 to 84 months postoperatively. Six cats were euthanatized between 1 and 26 months' postoperatively. The mean survival time in these cats was 13 months. Reasons for euthanasia included urinary incontinence (3 cats), skin necrosis (2 cats), and unresolvable ILUTD (1 cat). CONCLUSIONS: PPU is a salvage procedure that is successful in relieving the signs of urinary tract obstruction and preventing further obstruction. However, potential complications should limit its use to cases in which standard techniques for perineal urethrostomy cannot be performed. CLINICAL RELEVANCE: PPU is a comparatively simple procedure that should be considered as a salvage technique for obstructive disease of the pelvic urethra.


Assuntos
Doenças do Gato/cirurgia , Doenças Uretrais/veterinária , Derivação Urinária/veterinária , Animais , Gatos , Masculino , Necrose , Complicações Pós-Operatórias/veterinária , Registros/veterinária , Estudos Retrospectivos , Dermatopatias/etiologia , Dermatopatias/patologia , Dermatopatias/veterinária , Resultado do Tratamento , Uretra/cirurgia , Doenças Uretrais/cirurgia , Derivação Urinária/efeitos adversos , Derivação Urinária/métodos , Incontinência Urinária/etiologia , Incontinência Urinária/veterinária
13.
Clin Tech Small Anim Pract ; 15(1): 25-34, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10911682

RESUMO

An incision, or urethrotomy, is made into the urethral lumen to remove or relieve an obstruction temporarily. When permanent diversion of urine flow proximal to an obstructed, severely damaged, or diseased urethra is required, a urethrostomy is performed. Urethrostomy is also performed to diminish the risk of urethral obstruction due to recurrent urinary calculi that are not likely to be resolved with medical therapy. Whenever possible, to reduce the risk of urethral stricture or recurrent urinary tract infection, urethral surgery is avoided when an obstruction can be relieved by retrohydropropulsion or catheterization. Urethrotomy can be performed in the prescrotal or perineal regions depending on the level of the urethral obstruction. Although urethrostomy can be made in the perineal and antepubic positions, scrotal urethrostomy is the procedure of choice provided the lesion is distal to this area. Specific urethrotomy and urethrostomy procedures are described, including discussion about selection of the appropriate procedure for the urethral problem, patient stabilization considerations, general postoperative management, and risk of complications.


Assuntos
Doenças do Cão/cirurgia , Obstrução Uretral/veterinária , Derivação Urinária/veterinária , Procedimentos Cirúrgicos Urológicos Masculinos/veterinária , Animais , Árvores de Decisões , Doenças do Cão/patologia , Cães , Masculino , Obstrução Uretral/patologia , Obstrução Uretral/cirurgia
15.
Vet Surg ; 21(1): 33-9, 1992.
Artigo em Inglês | MEDLINE | ID: mdl-1580055

RESUMO

Gastric conduit urinary diversion was performed in 10 dogs after complete cystectomy. Four dogs were euthanatized on day 30 because of hypochloremic metabolic alkalosis and renal failure. Hematologic and biochemical changes in six dogs evaluated for 120 days were compatible with hypochloremic metabolic alkalosis. The continuous loss of hydrochloric acid from the gastric conduit resulted in significant increases in arterial blood pH, PaCO2, anion gap, TCO2, and the concentration of HCO3-. There were significant decreases in PaO2 and the serum concentrations of chloride and potassium. Deterioration of renal function resulted in all dogs. It was concluded that hypochloremic metabolic alkalosis makes gastric conduit urinary diversion unsatisfactory for clinical use in dogs.


Assuntos
Alcalose/veterinária , Cloretos/sangue , Cães/cirurgia , Complicações Pós-Operatórias/veterinária , Derivação Urinária/veterinária , Equilíbrio Ácido-Base , Alcalose/etiologia , Alcalose/terapia , Animais , Bicarbonatos/sangue , Gasometria/veterinária , Nitrogênio da Ureia Sanguínea , Dióxido de Carbono/sangue , Creatinina/sangue , Feminino , Hidratação , Concentração de Íons de Hidrogênio , Masculino , Oxigênio/sangue , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/terapia , Potássio/sangue , Potássio/uso terapêutico , Estômago/cirurgia , Derivação Urinária/métodos
16.
Vet Surg ; 21(1): 25-32, 1992.
Artigo em Inglês | MEDLINE | ID: mdl-1580054

RESUMO

The urinary bladder of 10 clinically normal dogs was excised and the ureters were implanted into an isolated, vagotomized gastric segment derived from the fundic region of the stomach. The gastric segment was closed to form a conduit. Continence was maintained with a modified Kock "nipple valve" created from an isolated segment of ileum. Four dogs were euthanatized by day 30 because of complications related to the early onset of renal failure and electrolyte alterations. Six dogs were euthanatized on day 150. Ureteral dilatation, hydronephrosis, and decreased endogenous creatinine clearance rates were measured in all dogs at the end of the survival period. Pyelonephritis was diagnosed histologically in seven dogs. Positive renal cultures were obtained from seven dogs at necropsy. It was concluded that gastric conduit urinary diversion is unsatisfactory for long-term or short-term clinical use in dogs.


Assuntos
Cães/cirurgia , Derivação Urinária/veterinária , Animais , Dilatação Patológica/etiologia , Dilatação Patológica/veterinária , Doenças do Cão/etiologia , Feminino , Hidronefrose/etiologia , Hidronefrose/veterinária , Rim/patologia , Falência Renal Crônica/etiologia , Falência Renal Crônica/veterinária , Masculino , Necrose , Complicações Pós-Operatórias/veterinária , Pielonefrite/etiologia , Pielonefrite/patologia , Pielonefrite/veterinária , Estômago/cirurgia , Uremia/etiologia , Uremia/veterinária , Doenças Ureterais/etiologia , Doenças Ureterais/veterinária , Cateterismo Urinário/veterinária , Derivação Urinária/métodos , Incontinência Urinária/etiologia , Incontinência Urinária/veterinária
17.
Vet Surg ; 20(2): 104-12, 1991.
Artigo em Inglês | MEDLINE | ID: mdl-2042278

RESUMO

Urinary diversion by implantation of the ureters into an isolated segment of jejunum was evaluated in eight clinically normal male dogs. Total cystectomy and subtotal intracapsular prostatectomy were performed, and the intestinal loop was sutured to the prostatic remnant. General health, renal function, acid-base balance, urinary tract infection, and urinary continence were monitored during observation periods of 4 to 30 weeks. All dogs survived the observation period and seven were in excellent general health at the time of euthanasia. Six of the 16 ureterointestinal anastomoses were complicated by complete ureteral obstruction. Absorption of urea from the intestinal loop was speculated as the reason for significant increases in serum urea nitrogen concentrations in all of the dogs. Serum creatinine concentrations generally remained within the normal range, but were significantly increased from preoperative baseline values by week 30. There was dilation of 12 renal pelves and ureters in seven dogs. Urine bacterial cultures were positive in six dogs, but histologic evidence of pyelonephritis was present in only five kidneys. Ejaculation was not affected by the procedure, but epididymitis was present in five dogs. The dogs could urinate consciously and did not dribble urine continuously; however, they urinated hourly. While the procedure was well tolerated by the dogs, the frequency of urination makes this technique unacceptable for most household pets.


Assuntos
Cistectomia/veterinária , Cães/cirurgia , Prostatectomia/veterinária , Derivação Urinária/veterinária , Anastomose Cirúrgica/veterinária , Animais , Bacteriúria/etiologia , Bacteriúria/veterinária , Nitrogênio da Ureia Sanguínea , Creatinina/sangue , Epididimite/etiologia , Epididimite/veterinária , Jejuno/cirurgia , Rim/patologia , Masculino , Fósforo/sangue , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/veterinária , Obstrução Ureteral/etiologia , Obstrução Ureteral/veterinária , Incontinência Urinária/etiologia , Incontinência Urinária/veterinária , Infecções Urinárias/etiologia , Infecções Urinárias/veterinária
18.
J Am Vet Med Assoc ; 194(8): 1057-60, 1989 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-2708107

RESUMO

It has been reported that perineal urethrostomy resulted in impairment of striated-muscle urethral sphincter function in male cats, as measured by urethral pressure profilometry and electromyography (EMG). Our study was undertaken to describe and evaluate a surgical technique for perineal urethrostomy that reduces trauma to the urethral branches of the pudendal nerve. Perineal urethrostomy was performed on 10 healthy neutered cats after demonstrating that they had normal urethral sphincter function by urethral pressure profilometry (maximal urethral closure pressure [MUCP] = 151 +/- 52 cm of water) and EMG activity at the level of the striated-muscle sphincter before surgery. All cats had normal urethral sphincter function 1 week (MUCP = 194 +/- 19 cm of water, EMG activity present) and 3 weeks (MUCP greater than 200 cm of water, EMG activity present) after surgery. These results indicated that preservation of the urethral branches of the pudendal nerve during urethrostomy preserved striated-muscle urethral sphincter function.


Assuntos
Gatos/cirurgia , Uretra/cirurgia , Derivação Urinária/veterinária , Animais , Eletromiografia/veterinária , Masculino , Pressão , Uretra/inervação , Uretra/fisiologia , Bexiga Urinária/inervação , Bexiga Urinária/fisiologia
19.
Probl Vet Med ; 1(1): 111-9, 1989.
Artigo em Inglês | MEDLINE | ID: mdl-2520095

RESUMO

Urethral obstruction is a common problem in male cats. The most prevalent location for the obstruction is the penile urethra. Most male cats with urethral obstruction can be effectively treated without surgery. However, some cats with this condition require a perineal urethrostomy. This surgical procedure involves removing the penile urethra and creating a permanent stoma between the skin and pelvic urethra. A variety of medical and management problems can develop early in the course of urethral obstruction. In addition, there are several potential intraoperative and postoperative complications related to the technique of perineal urethrostomy. Most medical problems and surgical complications respond to appropriate treatment.


Assuntos
Doenças do Gato/cirurgia , Complicações Pós-Operatórias/veterinária , Uretra/cirurgia , Obstrução Uretral/veterinária , Derivação Urinária/veterinária , Animais , Gatos , Masculino , Períneo/cirurgia , Cuidados Pós-Operatórios/veterinária , Obstrução Uretral/cirurgia
20.
Am J Vet Res ; 49(7): 1147-53, 1988 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-3421537

RESUMO

Ureterocolonic anastomosis was evaluated in 13 clinically normal dogs. Urinary continence was maintained after surgery, and the procedure was completed without technique errors in all but 2 dogs. Three dogs died within 5 weeks (2 of undetermined causes and 1 of aspiration pneumonia and neurologic disease), and 1 dog was euthanatized 4 months after surgery because of neurologic signs. Two healthy dogs were euthanatized 3 months after surgery for light microscopic evaluation of their kidneys. Five dogs were euthanatized 6 months after surgery for light microscopic evaluation of their kidneys. Gastrointestinal and neurologic disturbances developed in 4 dogs at various postoperative intervals. Plasma ammonia concentration measured in 2 dogs with neurologic signs was increased. Plasma ammonia concentration measured in 5 dogs without neurologic signs was within normal limits. All 5 dogs, in which metabolic acidosis was diagnosed, had high normal or above normal serum chloride concentration. Serum urea nitrogen values were increased after surgery because of colonic absorption of urea. Serum creatinine concentration was increased in 1 dog 6 months after surgery. Individual kidney glomerular filtration rate was reduced in 38% (3/8) of the kidneys from 4 other dogs at 6 months after surgery. Of 5 dogs euthanatized at 3 to 4 months after surgery, 4 had bilateral pyelitis, and 1 had unilateral pyelonephritis. Six months after surgery, pyelonephritis was diagnosed in 40% (4/10) of the kidneys from 5 dogs. The ureterocolonic anastomosis procedure is a salvage procedure that should allow complete cystectomy. However, variable degrees of metabolic acidosis, hyperammonemia, and neurologic disease may result.


Assuntos
Anastomose Cirúrgica/veterinária , Colo/cirurgia , Cães/cirurgia , Ureter/cirurgia , Derivação Urinária/veterinária , Animais , Doenças do Cão/etiologia , Fezes , Feminino , Masculino , Complicações Pós-Operatórias/veterinária
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