Urethral reconstruction combined with modified urethrostomy in a cat after prepubic urethrostomy

Background: In cats, urethral obstruction is generally caused by various reasons, including feline idiopathic cystitis, urethral crystals, urethral trauma, mucous plug, congenital or acquired anatomical deformity, and urolithiasis, especially in male cats. Depending on the severity and duration of clinical signs, immediate management including conservative or surgical therapy for restoration of urethral patency is required. Repetitive urethral obstruction due to intraluminal plugs, obstruction that cannot be resolved by medical management, and urethral strictures, trauma, or neoplasia should be managed by surgery. When the penile or pelvic urethra is ruptured or not long enough to mobilize the pelvic urethra to the perineal skin by repetitive perineal urethrostomy, prepubic urethrostomy is indicated. Potential complications of prepubic urethrostomy include urinary incontinence, peristomal dermatitis. In such cases, management of the peristomal site or placement of an artificial urethral sphincter have been reported previously. However, to date, urethral reconstruction using pre-existing penis has not been reported after prepubic urethral stricture following prepubic urethrostomy. The objective of this report is to describe surgical procedure of the urethral reconstruction combined with modified perineal urethrostomy in a cat with prepubic urethral stricture after prepubic urethrosotmy. Case: A 3-year-old castrated Scottish straight cat presented with dysuria after prepubic urethrostomy. The owner reported that the patient was diagnosed with urethral rupture, had undergone prepubic urethrostomy 2 months prior to presentation, and had persistent dysuria despite repetitive surgical revision of the prepubic urethral stoma at a local hospital. On physical examination, the preputial orifice and the penis appeared grossly normal. On ultrasonography, pericystic and periurethral fat had an edematous, striated appearance with alternating hyperechoic and anechoic regions. A small amount of free fluid was visible around the urethra. Abdominal radiography revealed a mildly distended bladder and loss of serosal detail around the area of the urinary bladder neck, consistent with inflammation and free fluid observed on ultrasonography. The retrograde urethrogram showed no leakage in either sites of the prepubic urethral orifice or the penis. Hence, complete urethral reconstruction with modified perineal urethrostomy was performed. The patient had normal urination at the 15-month follow-up. Discussion: Prepubic urethrostomy is beneficial for the patients whose penile or pelvic urethra is ruptured or not long enough to mobilize the pelvic urethra to the perineum. Complications of prepubic urethrostomy include skin necrosis around the stoma; urinary incontinence; stricture of the urethral stoma due to several reasons such as surgical-site irritation; poor mucosa-skin apposition; failure to provide tension-free stoma; and failure to expose wider pelvic urethra. In these cases, surgical management of the level of prepubic urethral stoma has been recommended by previous studies. However, no studies have been reported urethral reconstruction using pre-existing penile urethra in a patient with prepubic urethral stricture so far. To the author's knowledge, this case is the first report describing urethral reconstruction in a cat with urethral stricture after prepubic urethrostomy.

Obstructive urethrolithiasis in a mule

Background: Obstructive urolithiasis is a rare but potentially serious condition in equids. In the reviewed literature, there are several case reports of urolithiasis in horses and donkeys, but the only mention of this condition in mules occurred as incidental findings at a slaughterhouse. Therefore, this work aims to describe the first report and successful treatment of obstructive urethrolithiasis in a mule (Equus asinus x Equus caballus). Case: A 10-year-old castrated male mule weighing 380 kg was referred for hospital care. Tachycardia (64 beats per min), mild dehydration (7%), increased capillary filling time (3 s), slightly congested mucous membranes, and dysuria were observed. During its attempts to urinate, the mule was able to expose the penis, resulting in only dribbling of urine with reddish coloration. Urethral catheterization failed to reach the urinary bladder and revealed an obstruction at the ischial arch (7 x 4 cm), as confirmed by palpation and ultrasonography. Additionally, rectal ultrasound examination showed urine sedimentation and a single 2.36 mm vesical calculus. After sedation, local anesthesia, and surgical preparation, urethrotomy in the standing position was performed over the urethral obstruction at the ischial arch, reaching the urethrolith that fragmented during removal. Urethral catheterization from the urethrotomy site to flush the urinary bladder and urethra were performed, but the remaining vesical calculus was not retrieved. Considering the presence of a vesical calculus, severe urethral damage caused by the spiculated calculus and catheterization attempts, permanent perineal urethrostomy was performed. Laboratory tests revealed unremarkable hematological parameters, while serum biochemistry showed increased creatinine level. Urinalysis revealed cloudiness, amber appearance, countless red blood cells and bacteria, and calcium carbonate crystals. The urethrolith composition included ammonia, carbonate, and oxalate. Twelve months after surgery, the mule was healthy, the urethrostomy was viable, and no complications were recorded during this period. Discussion: Although uncommon, there are reports describing calculi of different sizes and weighing up to 803 g, causing mild to severe clinical signs according to the degree of obstruction in horses and donkeys. In the mule described here, the urethrolith did not completely obstruct the urethra, but the spiculated calculus caused dysuria and hematuria. In fact, most animals are usually referred for acute abdominal signs or hematuria and pollakiuria, but other unusual signs, such as rectal prolapse, may also be present. In the present report, the diagnosis of obstructive urethrolithiasis was established based on clinical signs and transcutaneous ultrasound of the subischial area, allowing visualization of the urethrolith. To the best of our knowledge, this is the first report of obstructive urethrolithiasis affecting a mule in Brazil. We reiterate that this condition must be included in the differential diagnosis of mules and hinnies with hematuria and dysuria, especially when associated with abdominal pain. Additionally, urethrostomy associated with urethrotomy performed on this mule in the standing position was a low-cost procedure with good results. Due to the lack of specificity regarding the food management of the mule on the previous farm, an assessment cannot be made regarding the effects of its food on urolith composition.(AU)

Neouretra com enxerto autógeno de segmento intestinal vascularizado em felino / Autogenous vascularized intestinal grafting for urethral reconstruction in feline

Background: Serious urethral damage or recurrent obstructions in felines require a urethrostomy to provide a return to and maintenance of urinary flow. In some cases, urethral reconstruction with complementary tissue is required. Grafting of autogenous vascularized intestinal segments is widely used in human medicine to promote the functional restoration of the urethra, but in veterinary medicine, its use is still incipient. Thus, the aim of this report was to analyze and describe the use of thein functional urethral repair in a feline diagnosed with a severe urethral rupture. Case: A castrated male cat presented with urethral obstruction. Emergency decompression cystocentesis was performed, and fluids and analgesics were administered. Catheterization and urohydropropulsion were attempted to relieve the obstruction, without success. An emergency perineal urethrostomy was indicated. After the procedure, the diagnosis (obstructive lower tract urinary disease) and the infeasibility of restoring urinary flow by conventional urethrostomy techniques were confirmed. We opted for a laparoscopic-assisted prepubic urethrostomy; the pre-prostatic urethra was transected, and its caudais end was brought through an abdominal incision cranially. However, urethral tension was noted after this maneuver was performed. Thus, we decided to use autogenous vascularized intestinal segment grafting for urethral reconstruction. A segment of the ileum was prepared for grafting, with preservation of irrigation and mesenteric innervation. A terminoterminal anastomosis was performed on the stumps of the remaining intestine, and the mesentery was sutured. The ileal graft was isolated and washed to remove...(AU)

Neouretra com enxerto autógeno de segmento intestinal vascularizado em felino / Autogenous vascularized intestinal grafting for urethral reconstruction in feline

Background: Serious urethral damage or recurrent obstructions in felines require a urethrostomy to provide a return to and maintenance of urinary flow. In some cases, urethral reconstruction with complementary tissue is required. Grafting of autogenous vascularized intestinal segments is widely used in human medicine to promote the functional restoration of the urethra, but in veterinary medicine, its use is still incipient. Thus, the aim of this report was to analyze and describe the use of thein functional urethral repair in a feline diagnosed with a severe urethral rupture. Case: A castrated male cat presented with urethral obstruction. Emergency decompression cystocentesis was performed, and fluids and analgesics were administered. Catheterization and urohydropropulsion were attempted to relieve the obstruction, without success. An emergency perineal urethrostomy was indicated. After the procedure, the diagnosis (obstructive lower tract urinary disease) and the infeasibility of restoring urinary flow by conventional urethrostomy techniques were confirmed. We opted for a laparoscopic-assisted prepubic urethrostomy; the pre-prostatic urethra was transected, and its caudais end was brought through an abdominal incision cranially. However, urethral tension was noted after this maneuver was performed. Thus, we decided to use autogenous vascularized intestinal segment grafting for urethral reconstruction. A segment of the ileum was prepared for grafting, with preservation of irrigation and mesenteric innervation. A terminoterminal anastomosis was performed on the stumps of the remaining intestine, and the mesentery was sutured. The ileal graft was isolated and washed to remove...

Complicações de urolitíase por oxalato de cálcio em cão uretrostomisado Relato de Caso / Complications of calcium oxalate urolithiasis in a urethrosed dog - Case report

The present study aims to report a male canine patient with calcium oxalate urolithiasis,who suffered complications of perineal urethrostomy. Cases of urolithiasis frequentlypresent in dogs, however, their complications are rarely mentioned in the literature,especially when the therapeutic protocol fails.(AU)

Complicações de urolitíase por oxalato de cálcio em cão uretrostomisado – Relato de Caso / Complications of calcium oxalate urolithiasis in a urethrosed dog - Case report

The present study aims to report a male canine patient with calcium oxalate urolithiasis,who suffered complications of perineal urethrostomy. Cases of urolithiasis frequentlypresent in dogs, however, their complications are rarely mentioned in the literature,especially when the therapeutic protocol fails.

Reparação cirúrgica de hipospadia escrotal canina relato de caso / Surgical repair of canine scrotal hypospadias case report / Corrección quirúrgica de la hipospadia escrotal canina relato de un caso

O presente relato tem como objetivo descrever um caso de hipospadia escrotal em um cão da raça boxer de quatro meses de idade. Essa anomalia foi observada durante exame físico do sistema reprodutor que revelou abertura ectópica do óstio uretral em região escrotal, subdesenvolvimento e atrofia peniana, má-formação do prepúcio, além de dermatite em região peri-uretral. Após a realização de exames complementares, o paciente foi encaminhado para cirurgia, realizando-se a amputação do pênis, orquiectomia e uretrostomia. No período pós-operatório o paciente apresentou excelente recuperação. A conduta cirúrgica escolhida demonstrou sucesso diante do quadro clínico apresentado, e também minimizou complicações decorrentes da hipospadia, garantindo melhor qualidade de vida ao paciente.(AU)

The present report aims to describe a case of scrotal hypospadias in a four-month old boxer. This anomaly was observed during physical examination of the reproductive system, which evinced an ectopic opening of the urethral ostium in the scrotal region, as well as penile underdevelopment and atrophy, malformation of the foreskin and dermatitis in the periurethral region. After additional tests, the patient was referred for surgery, during which amputation of the penis, orchiectomy and ureth-rostomy were performed. The patient presented excellent post-surgical recovery. The chosen surgical conduct was successful with respect to the clinical picture, and minimized complications due to hypospadias, ensuring a better quality of life to the patient.(AU)

Este relato tiene como objetivo describir un caso de hipospadia escrotal en un perro Boxer de cuatro meses. Esta anomalía se observó durante el examen físico del sistema reproductor, donde se constató que existía una abertura ectópica del orificio uretral en la zona del escroto, con subdesarrollo y atrofia del pene, malformación prepucial, además de una dermatitis en la región peri uretral. Una vez realizados los exámenes complementares, el paciente fue derivado a cirugía, donde se le realizó la amputación del pene, la orquiectomía y una uretrostomia. Durante el postoperatorio hubo una excelente recuperación. La conducta quirúrgica elegida fue exitosa frente al cuadro presentado por el animal, minimizando las complicaciones de la hipospadia, y garantizándole una calidad de vida mejor al paciente.(AU)

Reparação cirúrgica de hipospadia escrotal canina – relato de caso / Surgical repair of canine scrotal hypospadias – case report / Corrección quirúrgica de la hipospadia escrotal canina – relato de un caso

O presente relato tem como objetivo descrever um caso de hipospadia escrotal em um cão da raça boxer de quatro meses de idade. Essa anomalia foi observada durante exame físico do sistema reprodutor que revelou abertura ectópica do óstio uretral em região escrotal, subdesenvolvimento e atrofia peniana, má-formação do prepúcio, além de dermatite em região peri-uretral. Após a realização de exames complementares, o paciente foi encaminhado para cirurgia, realizando-se a amputação do pênis, orquiectomia e uretrostomia. No período pós-operatório o paciente apresentou excelente recuperação. A conduta cirúrgica escolhida demonstrou sucesso diante do quadro clínico apresentado, e também minimizou complicações decorrentes da hipospadia, garantindo melhor qualidade de vida ao paciente.

The present report aims to describe a case of scrotal hypospadias in a four-month old boxer. This anomaly was observed during physical examination of the reproductive system, which evinced an ectopic opening of the urethral ostium in the scrotal region, as well as penile underdevelopment and atrophy, malformation of the foreskin and dermatitis in the periurethral region. After additional tests, the patient was referred for surgery, during which amputation of the penis, orchiectomy and ureth-rostomy were performed. The patient presented excellent post-surgical recovery. The chosen surgical conduct was successful with respect to the clinical picture, and minimized complications due to hypospadias, ensuring a better quality of life to the patient.

Este relato tiene como objetivo describir un caso de hipospadia escrotal en un perro Boxer de cuatro meses. Esta anomalía se observó durante el examen físico del sistema reproductor, donde se constató que existía una abertura ectópica del orificio uretral en la zona del escroto, con subdesarrollo y atrofia del pene, malformación prepucial, además de una dermatitis en la región peri uretral. Una vez realizados los exámenes complementares, el paciente fue derivado a cirugía, donde se le realizó la amputación del pene, la orquiectomía y una uretrostomia. Durante el postoperatorio hubo una excelente recuperación. La conducta quirúrgica elegida fue exitosa frente al cuadro presentado por el animal, minimizando las complicaciones de la hipospadia, y garantizándole una calidad de vida mejor al paciente.

Hipospadia em um cão - relato de caso / Hypospadia in a dog a case report

Apesar de rara, a hipospadia é a afecção congênita mais frequente da genitália externa do macho. Trata-se de uma anomalia que resulta da não união completa da porção ventral da uretra perineal, escrotalou peniana. Pode ser acompanhada de má formação peniana, prepucial e criptorquidismo. Os malefícios para o cão estão relacionados a injúrias físicas devido à possível exposição do pênis a traumas, e dermatite surêmicas regionais causadas pela urina que escorre pela pele ou fístulas. O tratamento temporário deve ser sintomático com limpeza regional e utilização de ungüentos até que o animal atinja idade ideal para tratamento cirúrgico definitivo. Existem técnicas de reconstrução uretral, porém não são todos os casos em que a técnica é cabível devido à possível deformação uretral cranial e caudal ao defeito e falta de mucosa para reconstrução uretral. Há citações de enxertos autólogos bucais. Uma opção para casos mais complicados é a amputação peniana associada à uretrostomia e orquiectomia. O prognóstico é favorável,porém estes animais devem ser retirados da reprodução.AU

Though rarely, the hypospadia its a more frequent congenital condition of external genitalia of male. It is one anomaly that results of non full union of ventral portion of perineal, scrotal or penile urethra. It can be accompanied with penile malformation, preputial malformation and cryptorchidism. The harm to dogs is associated with fisical injuries due of penile exposition to traumas and regional uremic dermatitis caused by urine that flows by skin or fistulas. The temporary treatment should be symptomatic with regional cleaning and use of ointment until the animal reaches ideal ages to definitive surgical treatment. There is techniques to urethral reconstruction, but, not all cases the technique are appropriate due possible deformation urethral cranial and caudal to defect and mucosa lack to urethral reconstruction. There are quote of autografts mouth. Penile amputation together with urethrostomy and orchiectomy are an option to more complicated cases. The prognosis is favorable, but these animals should be playback removed.AU

Hipospadia em um cão - relato de caso / Hypospadia in a dog – a case report

Apesar de rara, a hipospadia é a afecção congênita mais frequente da genitália externa do macho. Trata-se de uma anomalia que resulta da não união completa da porção ventral da uretra perineal, escrotalou peniana. Pode ser acompanhada de má formação peniana, prepucial e criptorquidismo. Os malefícios para o cão estão relacionados a injúrias físicas devido à possível exposição do pênis a traumas, e dermatite surêmicas regionais causadas pela urina que escorre pela pele ou fístulas. O tratamento temporário deve ser sintomático com limpeza regional e utilização de ungüentos até que o animal atinja idade ideal para tratamento cirúrgico definitivo. Existem técnicas de reconstrução uretral, porém não são todos os casos em que a técnica é cabível devido à possível deformação uretral cranial e caudal ao defeito e falta de mucosa para reconstrução uretral. Há citações de enxertos autólogos bucais. Uma opção para casos mais complicados é a amputação peniana associada à uretrostomia e orquiectomia. O prognóstico é favorável,porém estes animais devem ser retirados da reprodução.

Though rarely, the hypospadia it’s a more frequent congenital condition of external genitalia of male. It is one anomaly that results of non full union of ventral portion of perineal, scrotal or penile urethra. It can be accompanied with penile malformation, preputial malformation and cryptorchidism. The harm to dogs is associated with fisical injuries due of penile exposition to traumas and regional uremic dermatitis caused by urine that flows by skin or fistulas. The temporary treatment should be symptomatic with regional cleaning and use of ointment until the animal reaches ideal ages to definitive surgical treatment. There is techniques to urethral reconstruction, but, not all cases the technique are appropriate due possible deformation urethral cranial and caudal to defect and mucosa lack to urethral reconstruction. There are quote of autografts mouth. Penile amputation together with urethrostomy and orchiectomy are an option to more complicated cases. The prognosis is favorable, but these animals should be playback removed.

Uretrostomia pré-púbica para correção de estenose uretral emum gato relato de caso / Prepbic urethrostomy for repair of urethral stricture in a cat case report

A obstrução uretral em felinos constitui um quadro emergencial que sem adequada intervenção poderáevoluir para uremia e óbito do paciente. A distensão prolongada da bexiga resultará em perda da funçãocontráctil e, consequentemente, atonia vesical, podendo tornar-se permanente. Este relato descreve oprocedimento cirúrgico de uretrostomia pré-púbica em um gato para correção de estenose uretral apósuretrostomia perineal. Conclui-se que a uretrostomia pré-púbica é eficiente para a correção de estenoseuretral em felino mesmo após prévia uretrostomia perineal, mas apresentou cistite como complicação.(AU)

Urethral obstruction in cats is an emergency that without adequate intervention may progress to uremiaand death of the patient. Prolonged distension of the bladder will result in loss of contractile function andconsequently, bladderatonia and this can become permanent. It is concluded that the pre-pubic urethrostomyin feline is effective for correction of urethral stenosis even afte previous perineal urethrostomy,with cystitis as a complication.(AU)

Uretrostomia pré-púbica para correção de estenose uretral emum gato – relato de caso / Prepbic urethrostomy for repair of urethral stricture in a cat – case report

A obstrução uretral em felinos constitui um quadro emergencial que sem adequada intervenção poderáevoluir para uremia e óbito do paciente. A distensão prolongada da bexiga resultará em perda da funçãocontráctil e, consequentemente, atonia vesical, podendo tornar-se permanente. Este relato descreve oprocedimento cirúrgico de uretrostomia pré-púbica em um gato para correção de estenose uretral apósuretrostomia perineal. Conclui-se que a uretrostomia pré-púbica é eficiente para a correção de estenoseuretral em felino mesmo após prévia uretrostomia perineal, mas apresentou cistite como complicação.

Urethral obstruction in cats is an emergency that without adequate intervention may progress to uremiaand death of the patient. Prolonged distension of the bladder will result in loss of contractile function andconsequently, bladderatonia and this can become permanent. It is concluded that the pre-pubic urethrostomyin feline is effective for correction of urethral stenosis even afte previous perineal urethrostomy,with cystitis as a complication.

Uretrostomia para colheita seriada de urina em bezerros / Urethrostomy for serial sampling of urine in calves

Urethrostomy for serial sampling of urine was used due to the necessity of one technique that allowed the total urinary collection in definite time periods. Twenty-seven male Holstein calves from 8 to 16-days-age having a mean weight 39.50±4.80kg were used. Urethrostomy was carried out with the use of urethral sounding lead that was made for this purpose. In agreement with the clinical examinations, including seric biochemical, urinalysis and blood test and postmortem examination, the technique achieved 81.5 percent of satisfactory results.(AU)

Clinicaland laboratoryevaluation in cats with lower urinary tract disease submitted to urethorstomy / Avaliação clínica e laboratorial em gatos domésticos com doença do trato urinário inferior submetidos a uretrostomia

The Lower Urinary Tract Disease (LUTD) in domestic cats presents clinical signs of dysuria, polacyuria, haematuria and urinary obstruction. The urethrostomy is a suitable surgical procedure in cases of urethral obstruction when the medical and diet treatments do not impede recurrences. With the objective of analyzing both laboratorial and clinically the animals after the urethrostomy associated to penectomia, three domestic, male, castrated cats were used, with ages from 2 to 4 years, without defined race, evaluated before and after the surgery through clinical exams, urine summaries and haemograms, monthly, for 3 months. Thirty days after the surgery, the animals presented the symptoms of LUTD again, as well as they maintained the alterations of the urinalysis (alkaline pH, proteinuria and crystalluria). The urethrostomy can be useful for removing the urethral obstruction in domestic cats, but do not avoid the appearance of other clinical manifestations of LUTD and the factors that may induce the deccurring of this disease, being, therefore, a procedure more palliative than curative.

A Doença do Trato Urinário Inferior em gatos domésticos apresenta sinais clínicos de disúria, polaciúria, hematúria e obstrução urinária. A uretrostomia é um procedimento cirúrgico indicado em casos de obstrução uretral quando os tratamentos médico e dietético não impedirem as recidivas. Com o objetivo de analisar clínica e laboratorialmente os animais após a uretrostomia perineal associada a penectomia, foram utilizados três gatos domésticos, machos, castrados, com idade de 2 a 4 anos, sem raça definida, avaliados antes e depois da cirurgia através de exames clínicos, sumários de urina e hemogramas, mensalmente, durante 3 meses. Trinta dias após a cirurgia, os animais tornaram a apresentar os sintomas da DTUI, assim como permaneceram com as alterações das urinálises (pH alcalino, proteinúria e cristalúria). A uretrostomia pode ser útil na desobstrução uretral em gatos domésticos, mas não impede o aparecimento de outras manifestações clínicas da DTUI e dos fatores desencadeantes dessa enfermidade, sendo, portanto, um procedimento mais paliativo do que curativo.

Clinicaland laboratoryevaluation in cats with lower urinary tract disease submitted to urethorstomy / Avaliação clínica e laboratorial em gatos domésticos com doença do trato urinário inferior submetidos a uretrostomia

The Lower Urinary Tract Disease (LUTD) in domestic cats presents clinical signs of dysuria, polacyuria, haematuria and urinary obstruction. The urethrostomy is a suitable surgical procedure in cases of urethral obstruction when the medical and diet treatments do not impede recurrences. With the objective of analyzing both laboratorial and clinically the animals after the urethrostomy associated to penectomia, three domestic, male, castrated cats were used, with ages from 2 to 4 years, without defined race, evaluated before and after the surgery through clinical exams, urine summaries and haemograms, monthly, for 3 months. Thirty days after the surgery, the animals presented the symptoms of LUTD again, as well as they maintained the alterations of the urinalysis (alkaline pH, proteinuria and crystalluria). The urethrostomy can be useful for removing the urethral obstruction in domestic cats, but do not avoid the appearance of other clinical manifestations of LUTD and the factors that may induce the deccurring of this disease, being, therefore, a procedure more palliative than curative.

A Doença do Trato Urinário Inferior em gatos domésticos apresenta sinais clínicos de disúria, polaciúria, hematúria e obstrução urinária. A uretrostomia é um procedimento cirúrgico indicado em casos de obstrução uretral quando os tratamentos médico e dietético não impedirem as recidivas. Com o objetivo de analisar clínica e laboratorialmente os animais após a uretrostomia perineal associada a penectomia, foram utilizados três gatos domésticos, machos, castrados, com idade de 2 a 4 anos, sem raça definida, avaliados antes e depois da cirurgia através de exames clínicos, sumários de urina e hemogramas, mensalmente, durante 3 meses. Trinta dias após a cirurgia, os animais tornaram a apresentar os sintomas da DTUI, assim como permaneceram com as alterações das urinálises (pH alcalino, proteinúria e cristalúria). A uretrostomia pode ser útil na desobstrução uretral em gatos domésticos, mas não impede o aparecimento de outras manifestações clínicas da DTUI e dos fatores desencadeantes dessa enfermidade, sendo, portanto, um procedimento mais paliativo do que curativo.

Uretrostomia peniana e perineal em felinos domésticos

The content of lhe present paper is lhe result of different technics for urethrostomy in domestic cats. Twenty four mongrel males cats were used. They were distributed in four groups of six animais each and the following protocol were used: cranial penile urethrostomy (group 1), caudal penile urethrostomy (group II), association of the previous techniques (group III) and association of cranial penectomy and perineal urethrostomy (group IV). Previously orchiectomy was performed in all animals. The results were evaluated through a daily clinical examination considering the macroscopic aspect of the wound, the contraction and the aesthetic view. Urianalysis and culture of urine were performed at the animais of groups III and IV, which are the groups with the best surgical results. In the first group it was observed the complete closure of the penile uretra around the 15th pos-operative day. All animals from group II, presented penile exposition due to tissue retraction after surgery. The best results were obtained with animals of the group IV, wich presented acceptable aesthetical results and maintence of urethral patency. This tecnique is indicated for relief urethral obstruction in cats.

O conteúdo do presente trabalho é o resultado de diferentes técnicas de uretrostomia em felinos domésticos. Foram utilizados vinte quatro gatos sem raça definida, machos, distribuídos em quatro grupos de seis animais cada e submetidos a orquiectomia e aos seguintes procedimentos cirúrgicos: uretrostomia peniana cranial (grupo I), uretrostomia peniana caudal (grupoII), uretrostomia peniana craniocaudal (grupo III) e uretrostomia perineal associada à penectomia cranial (grupo IV). Os resultados foram avaliados através de exame clínico geral, realizado do primeiro dia ao nonagésimo dia após intervenção cirúrgica. O aspecto macroscópico da ferida cirúrgica, grau de contração e aspecto estético foram inspecionados diariamente até a retirada dos pontos externos. Foram realizados exame de urina tipo l e urocultura, apenas nos animais que apresentaram melhores resultados: aqueles submetidos à uretrostomia peniana craniocaudal e à uretrostomia perineal associada à penectomia cranial. Esses exames foram realizados 24h antes do procedimento cirúrgico (T0), 15 (Tl) e 30 (T2) do período pós-operatório. Os animais do primeiro grupo apresentaram fechamento completo da uretra peniana, os do segundo grupo apresentaram intensa retração cicatricial pós-operatória que promoveu exposição peniana permanente. Os animais do grupo III, também desenvolveram exposição peniana permanente, porém em menor grau. Os resultados apresentados por todos os indivíduos do grupo IV foramos melhores, sendo a técnica recomendada para desobstrução uretral em gatos.

Uretrostomia peniana e perineal em felinos domésticos

The content of lhe present paper is lhe result of different technics for urethrostomy in domestic cats. Twenty four mongrel males cats were used. They were distributed in four groups of six animais each and the following protocol were used: cranial penile urethrostomy (group 1), caudal penile urethrostomy (group II), association of the previous techniques (group III) and association of cranial penectomy and perineal urethrostomy (group IV). Previously orchiectomy was performed in all animals. The results were evaluated through a daily clinical examination considering the macroscopic aspect of the wound, the contraction and the aesthetic view. Urianalysis and culture of urine were performed at the animais of groups III and IV, which are the groups with the best surgical results. In the first group it was observed the complete closure of the penile uretra around the 15th pos-operative day. All animals from group II, presented penile exposition due to tissue retraction after surgery. The best results were obtained with animals of the group IV, wich presented acceptable aesthetical results and maintence of urethral patency. This tecnique is indicated for relief urethral obstruction in cats.

O conteúdo do presente trabalho é o resultado de diferentes técnicas de uretrostomia em felinos domésticos. Foram utilizados vinte quatro gatos sem raça definida, machos, distribuídos em quatro grupos de seis animais cada e submetidos a orquiectomia e aos seguintes procedimentos cirúrgicos: uretrostomia peniana cranial (grupo I), uretrostomia peniana caudal (grupoII), uretrostomia peniana craniocaudal (grupo III) e uretrostomia perineal associada à penectomia cranial (grupo IV). Os resultados foram avaliados através de exame clínico geral, realizado do primeiro dia ao nonagésimo dia após intervenção cirúrgica. O aspecto macroscópico da ferida cirúrgica, grau de contração e aspecto estético foram inspecionados diariamente até a retirada dos pontos externos. Foram realizados exame de urina tipo l e urocultura, apenas nos animais que apresentaram melhores resultados: aqueles submetidos à uretrostomia peniana craniocaudal e à uretrostomia perineal associada à penectomia cranial. Esses exames foram realizados 24h antes do procedimento cirúrgico (T0), 15 (Tl) e 30 (T2) do período pós-operatório. Os animais do primeiro grupo apresentaram fechamento completo da uretra peniana, os do segundo grupo apresentaram intensa retração cicatricial pós-operatória que promoveu exposição peniana permanente. Os animais do grupo III, também desenvolveram exposição peniana permanente, porém em menor grau. Os resultados apresentados por todos os indivíduos do grupo IV foramos melhores, sendo a técnica recomendada para desobstrução uretral em gatos.