Pyometra in a tiger (Panthera tigris)

Background: Captive tigers can live a long life, around 26 years. Among the diseases described some of non-infectious origin are quite common, such as chronic kidney disease, spondylosis, and biliary cysts or tumors. On the other hand, pyometra has been frequently reported in lions, who have a higher risk of developing the disease than tigers and leopards. Pyometra is a disease with few descriptions in tigers and it may be related to the physiological features of the species. The animal is listed as Endangered on the International Union for the Conservation of Nature Red List of Threatened. The present report aims to describe the diagnosis and treatment of pyometra in a captive tigress. Case: A 7-year-old entire female tiger (Panthera tigris) weighing 140 kg was presented with a 3-day history of anorexia and prostration. For clinical examinations, collection of laboratory and imaging tests, the patient initially underwent dissociative anesthesia to allow catheterization of the cephalic vein and intravenous general anesthesia for orotracheal intubation followed by anesthetic maintenance in isoflurane. On general physical examination, the animal had normal colored mucosa, vital parameters within normal limits, and a body condition score of 6 on a scale of 9. There was no presence of vulvar secretion. The blood count and the biochemical exams showed values within the normal range for the species. The chest X-ray in the right and left views did not demonstrate pulmonary abnormalities. Ultrasonographic examination of the abdomen showed distension of the uterine body and horns, which have intraluminal hyperechoic fluid content without flocculation. Based on the imaging exam, the diagnosis was suggestive of pyometra. Exploratory celiotomy was performed via ventral midline, confirming the condition, which was treated by ovariohysterectomy. The surgical technique was performed as described for therapeutic ovariohysterectomy in dogs and cats. Culture of uterine content identified Escherichia coli. The histological analysis identified diffuse endometritis associated with follicular cysts. The tiger had complete recovery without any complications. The patient was releasing 13 days after the surgical procedure and in the last contact four months after the surgery, it was in perfect health conditions. Discussion: Pyometra in large exotic felids has been occasionally reported, mainly in animals more than 10 years of age. Although the tigress in the report is estimated to be seven years old. The patient in question started with anorexia and prostration and as there was already a history of cystic endometrial hyperplasia, a possible pyometra was suspected, despite being uncommon in the species. There was not vaginal discharge. The definitive diagnosis was by means of ultrasound examination and ovariohysterectomy was performed. Abdominal surgery for these large felids is complex, due to the intra-abdominal volume the flank approach or by laparoscopic is suggested, however in this case a ventral midline incision was performed without intercurrences and complications in the post-operative period. The surgical technique like that used in small animals was effective for the treatment of pyometra in the tigress with the use of ovariohysterectomy. Culture of uterine content identified Escherichia coli, which has been the most commonly isolated pathogen in pyometra of large felids. It was concluded that, as in bitches with pyometra, early diagnosis and surgical treatment is ideal for the patient's recovery.

Emergências reprodutivas de cadelas e gatas em um hospital veterinário universitário / Reproductives emergencies in female dogs and female cats treated in a teaching veterinary hospital

Emergências obstétricas são comuns na rotina clínica de cães e gatos. Dentre as emergências obstétricas uma das mais importantes é a distocia. De modo geral, a distocia ocorre quando há falha no momento do parto ou na expulsão do feto, sendo que a causa mais comum de distocia nas duas espécies é a inércia uterina primária. Outra emergência obstétrica de ocorrência frequente em cadelas e gatas é a piometra. Esta doença é uma infecção que ocorre no útero, causada por alterações hormonais na fase do diestro dos animais. As duas enfermidades (distocia e piometra) podem ter o envolvimento de anticoncepcionais, tanto nas cadelas como nas gatas. Em relação ao tratamento, na maioria das vezes, as distocias em cadelas e gatas são abordadas por meio da realização de cesarianas. Em piometra, a terapêutica mais efetiva é a realização de ovariohisterectomia. Neste estudo, 43 cadelas e 20 gatas com emergências obstétricas foram monitoradas durante 90 dias. Entre as cadelas, 29 (67,44%; 29/43) apresentaram piometra e 13 (30,23%; 13/43) distocia. Além disso, uma cadela apresentou prolapso vaginal. Entre as gatas, 13 apresentaram distocia (65%; 13/20) e sete (35%; 7/20) piometra. Algumas dessas emergências obstétricas foram relacionadas ao uso de anticoncepcional. Assim, os clínicos veterinários devem desencorajar esta prática e incentivar a castração das fêmeas.

Obstetric emergencies are common in the clinical routine of dogs and cats. One of the most important obstetric emergencies is dystocia. In general, dystocia occurs when there is a failure at the parturition time or expulsion of the fetus, and the most common cause of dystocia in both species is primary uterine inertia. Another frequently occurring obstetric emergency in bitches and cats is piometra. This disease is an infection that occurs in the uterus caused by hormonal changes in the diestrus phase of animals. In both diseases (dystocia and pyometra), contraceptives can be involved in female dogs and cats. Regarding the treatment, most of the time, dystocias in bitches and cats are addressed through cesarean sections. In pyometra, the most effective therapy is to perform ovariohysterectomy. In the present study, 43 female dogs and 20 female cats with emergency obstetric were monitored during 90 days. Among bitches, 29 (67.44%; 29/43) had pyometra, and 13 (30.23%; 13/43) showed dystocia. In addition, one female dog presented vaginal prolapse. Among the cats, 13 had dystocia (65%; 13/20) and seven (35%; 7/20) pyometra. Some of these obstetric emergencies were related to contraceptive use. Thus, veterinary clinicians must discourage this practice and encourage the neutering of females.

Emergências reprodutivas de cadelas e gatas em um Hospital Veterinário Universitário / Reproductives emergencies in female dogs and female cats treated in a Teaching Veterinary Hospital

Emergências reprodutivas, como as piometras e distocias, são frequentes na rotina clínica de cadelas e gatas. A distocia ocorre quando há falha no momento do parto ou na expulsão do feto e sua causa mais comum, nas duas espécies, é a inércia uterina primária. A piometra é uma infecção que ocorre no útero, causada por alterações hormonais na fase do diestro dos animais. As duas enfermidades (distocia e piometra) podem ter o envolvimento de anticoncepcionais, tanto nas cadelas como nas gatas. Na maioria das vezes, as distocias, em cadelas e gatas, é abordada por meio da realização de cesarianas, enquanto para a piometra, a terapêutica mais efetiva é a realização de ovariohisterectomia. Desta forma, tendo em vista a deficiência na quantificação de emergências reprodutivas obstétricas em cadelas e gatas diagnosticadas em serviços veterinários do Brasil, este trabalho teve como objetivo relatar os achados obtidos através do monitoramento, durante 90 dias, de 43 cadelas e 20 gatas com emergências reprodutivas. Dentre as cadelas, 29 (67,44%; 29/43) apresentaram piometra, 13 (30,23%; 13/43) distocia e 1 prolápso vaginal. Dentre as gatas, 13 (65%; 13/20) apresentaram distocia e sete (35%; 7/20) piometra. Algumas das emergências reprodutivas foram relacionadas ao uso de anticoncepcional. Assim, os clínicos veterinários devem desencorajar esta prática e incentivar a castração das fêmeas.

Reproductive emergencies, such as pyometras and dystocias, are frequent in the clinical routine of female dogs and cats. Dystocia occurs when there is a failure during delivery or expulsion of the fetus, and its most common cause, in both species, is primary uterine inertia. Pyometra is an infection that occurs in the uterus caused by hormonal changes in the diestrous phase of animals. In both diseases (dystocia and pyometra), contraceptives can be involved in both female dogs and cats. Most of the time, dystocias, in female dogs and cats, is addressed through cesarean sections, while in pyometra, the most effective therapy is to perform ovariohysterectomy. Thus, given the deficiency in the quantification of obstetric reproductive emergencies in female dogs and cats diagnosed in veterinary services in Brazil, this study aimed to report the findings obtained by monitoring 43 female dogs and 20 female cats with reproductive emergencies for 90 days. Among bitches, 29 (67.44%; 29/43) presented pyometra, 13 (30.23%; 13/43) showed dystocia, and 1 had vaginal prolapse. Among the cats, 13 presented dystocia (65%; 13/20), and 7 (35%; 7/20) showed pyometra. Some reproductive emergencies were related to contraceptive use. Thus, veterinary clinicians must discourage this practice and encourage the castration of females

Bilateral dysgerminoma in a senile bitch associated with nodular lymphoid hyperplasia in spleen and pyometra: a case report / Disgerminoma bilateral em cadela senil associado a hiperplasia nodular linfoide em baço e piometra: relato de caso

Ovarian neoplasms affect a low percentage of female dogs, and these tumors are classified according to their cellular origin and are considered rare. Dysgerminoma is a tumor derived from undifferentiated primordial ovarian germinal epithelium cells. In the male, this neoplasm is diagnosed as seminoma. Thus, dysgerminoma is not linked to the production of ovarian hormones such as estrogen and progesterone, which play a fundamental role in the establishment of pyometra. At Araujo Veterinary Hospital (HVA), a 15-year-old female Pinscher was admitted with mucopurulent vaginal discharge, abdominal enlargement, anorexia, polydipsia, and prostration clinical signs indicative of pyometra, radiographic and ultrasound examinations were requested, as well as a blood collection for hemogram and serum biochemistry. Ultrasound examination revealed uterine enlargement and hypoechoic content, in addition to bilateral ovarian cysts, measuring 7 cm in the right ovary and 3 cm in the left. The blood count revealed normal values in the erythrogram and the leukogram showed monocytosis and lymphopenia, in addition to macroplatelets. Biochemical examination revealed increased GGT values of 10 U/L. Ovariohysterectomy was performed and, in the trans-surgical period, nodules in the spleen were observed. So, the ovaries and a fragment of the lymphoid organ, were fixed and sent to the histopathology laboratory after surgical resection. Histopathology revealed ovarian dysgerminoma and lymphoid nodular hyperplasia. Ten days after the surgical procedure, the dog returned to the HVA for clinical evaluation and suture removal. However, three days after the return, the patient presented a convulsive condition evolving to death.

Neoplasias ovarianas acometem baixa porcentagem de cadelas, e estes tumores são classificados de acordo com a origem celular, sendo considerados raros. O disgerminoma é um tumor derivado de células do epitélio germinativo primordial ovariano, indiferenciado. No macho, essa neoplasia é diagnosticada como seminoma. Assim, o disgerminoma não está ligado a produção de hormônios ovarianos, como o estrógeno e a progesterona, que desempenham papel fundamental para o estabelecimento da piometra. No Hospital Veterinário Araújo (HVA), uma cachorra da raça Pinscher, com 15 anos, foi antendida apresentando, secreção vaginal mucopurulenta, aumento abdominal, anorexia, polidipsia e prostração sinais clínicos indicativos de piometra, solicitou-se exame de radiográfico e ultrassonografia, bem como a coleta de sangue para hemograma e bioquímico sérico. O exame ultrassonográfico revelou aumento uterino e conteúdo hipoecóico, além de cistos ovarianos bilaterais, com mensurações de 7 cm no ovário direito e 3 cm no esquerdo. O hemograma revelou valores normais no eritrograma e o leucograma apresentou monocitose e linfopenia, além de macroplaquetas. O exame bioquímico revelou valores de GGT aumentados, em 10 U/L. A ovariohisterectomia foi realizada e no trans cirúrgico observou-se nódulos no baço. Assim, os ovários e um fragmento do órgão linfoide, após a ressecção cirúrgica, foram fixados e encaminhadas para laboratório de histopatologia. A histopatologia revelou disgerminoma ovariano e hiperplasia nodular linfoide. Dez dias após o procedimento cirúrgico, a paciente retornou ao HVA para avaliação clínica e retirada da sutura. No entanto, três dias após o retorno, o animal apresentou um quadro convulsivo evoluindo ao óbito.

Piometra em fêmeas domésticas: uma revisão / Pyometra in domestic females: a review / Piometra en hembras domesticas: una revision

Piometra é uma doença que afeta o útero de fêmeas causando infecção e inflamação com acúmulo de grande quantidade de exsudato purulento ou mucopurulento. Ocorre em todas as espécies domésticas, sendo mais comum em cadelas e vacas. Sua importância em cada espécie está relacionada ao número de casos e sua severidade, dentro de suas particularidades. O objetivo com esta revisão foi reunir estudos referentes à piometra em fêmeas domésticas, incluindo a epidemiologia, sinais clínicos, diagnóstico e tratamento nas principais espécies acometidas.

Pyometra is a disease that affects the uterus of females causing infection and inflammation with an accumulation of large amounts of purulent or mucopurulent exudate. It occurs in all domestic species, being more common in bitches and cows. Its importance in each species is related to the number of cases and its severity, within its particularities. The objective of this review was to gather studies referring to pyometra in domestic females, including epidemiology, clinical signs, diagnosis, and treatment in the main species affected.

La piometra es una enfermedad que afecta el útero de las hembras causando infección e inflamación com acumulación de grandes cantidades de exudado purulento o mucopurulento. Ocurre en todas las espécies domésticas, siendo más frecuente en perras y vacas. Su importancia en cada especie está relacionada con el número de casos y su severidad, dentro de sus particularidades. El objetivo de esta revisión fue reunir estudios sobre piometra en hembras domésticas, incluyendo epidemiología, signos clínicos, diagnóstico y tratamiento en las principales especies afectadas.

Streptococcus spp. in equines - infection and antimicrobial susceptibility profiles

Background: Empirical antimicrobial prescribing is commonly used in equine veterinary. Therefore, professionals can obtain information about antimicrobial susceptibility profile of the bacterial strains based on veterinary literature. Considering equine infections, Streptococcus spp. are important pathogens that can cause serious damage in horses. Therefore, the aim of this study was to describe the antimicrobial susceptibility testing (AST) and infection profiles of Streptococcus spp. strains isolated from equines with infectious diseases subjected to microbiological analysis. Materials, Methods & Results: Veterinarians sent 13 samples and culture in Blood and MacConkey Agar were performed. After the incubation period, suspected colonies, which showed significative growth, were analyzed by Gram-staining, biochemical tests, and subjected to confirmatory identification in Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry. In vitro AST analysis were performed by disc diffusion method, in accordance with the veterinarians' request. The antimicrobials tested in this study were: ceftiofur, gentamicin, ampicillin, enrofloxacin, amikacin, penicillin, trimethoprim-sulfamethoxazole, ciprofloxacin, doxycycline, vancomycin and metronidazole. The samples included uterine exudate, hock fistula, osteosynthesis exudate, exudate from the guttural pouch, and were originated from animals located in different and distant geographical regions in the cities of Porto Alegre, Pelotas, and Bagé, Rio Grande do Sul, Brazil. Streptococcus dysgalactiae, Streptococcus equi and Streptococcus thoraltensis were the Streptococcus species identified in the samples. S. dysgalactiae was the mainly species found in the uterus samples, while S. thoraltensis, an unusual Streptococcus species, was identified as etiological agent of endometritis in 2 of the analyzed animals. On the other hand, S. equi was found in both the guttural pouch, representing the etiological agent of the strangle case, and in the osteosynthesis exudate, as infectious agent of post-osteosynthesis surgery. The majority of streptococci strains were susceptible to ceftiofur drug. Amikacin and ciprofloxacin, however, were the drugs for which the strains were mainly resistant according to the results. Discussion: The present study provided the AST and infection profile of Streptococcus species related to equine infectious diseases. S. dysgalactiae is considered an unusual bacterium isolated from horses that can be related to endometritis, S. equi is the causative agent of strangles, and S. thoraltensis is unusual in equines. Generally, the observed susceptibility to ceftiofur of the strains analyzed was in agreement with previous results reported in the literature. However, ceftiofur is a third-generation cephalosporin and is considered a critically important antibiotic for human health and its use in veterinary medicine should be cautious. Considering the resistance profile found, Streptococcus spp. can be intrinsically resistant to low drug concentrations of aminoglycosides. Moreover, the emergence and spread of fluoroquinolones resistance may also be due to the acquisition of resistance via horizontal gene transfer. Therefore, the present study described both infection and antimicrobial susceptibility patterns of Streptococcus strains related to equine infectious diseases. Considering the findings, the results found in this study might contribute to the decision-making by veterinarians to further equine treatments.

Histeropexia com aplicação de "toggles" para tratamento de piometra em mini horse / Pyometra treatment by histeropexy with toggles aplication in mini horse

Background: Brazil is an important horse breeder that creates about three million jobs and movements about R$16,15 billions per year. Although, it is important to the horse breeding industry success that the animals reproductive performance be kept. The mare pregnancy loss causes abundant forfeitures to horse breeders, furthermore, the chronic pyometra is one of that causes. The chronic pyometra is an uncommon mare condition, clinical treatments are often ineffective, under those circumstances the hysterectomy, ovariohysterectomy and uteropexy are recommended. This report proposes to describe the chronic pyometra surgical treatments with the uteropexy technique in mini horses that do not respond to the clinical treatment. Case: A 14-year-old mini breed horse mare weighing 117 kg was sent to Veterinarian Hospital (HV) of the Paraná Federal University (UFPR), presenting dystocia background and intrauterine purulent secretion. The clinical treatment had been conducted, but not well succeeded. An hysteroscopy was conducted with a cervix rupture monitoring, uterine mucosa edematiated and crispy, presenting liquid and a high amount of purulent secretion in the uterus horn and body. The biopsy identified uteropexy. The post-surgical complications were minimums and 30 days after the procedure the laparoscopy was repeated with uterine healing monitoring, without adherences and the uterus were at horizontal position. The hysteroscopy was conducted where a small amount of purulent secretion was perceived. Ten days after the second laparoscopy the patient was discharged. Two years after the procedure, the animal responsible informed that there was not a relapse. Discussion: the mare pyometra occurrence is uncommon and emerges by nature protection false mechanisms. Any change or flaw in one of these protection mechanics barriers, may result in a reproductive change due to uterine infection, resulting in reduction of mare reproductive capacity. Probably this reports patients developed pyometra due to the cervix lesion it's presented made easier the uterus external microorganisms entrance, that predisposes an chronic uterine infection. As many authors report, the chronic pyometra clinical treatment is not always successful, also observed in the case reported, indicating then surgical treatment. There are many pyometra surgical treatments indications as: Wedge resection technique in case of cervix adherence, uteropexy technique, ovary-hysterectomy technique or hysterectomy. The ovary-hysterectomy and the hysterectomy was not conducted for being considered highly invasive. This case choice procedure was the uteropexy, which corresponds to fixing the broad ligament of the uterus to the abdominal wall, repositioning it horizontally, to obtain a better drainage and motility, since this is your anatomic position. In the report, the surgical technique was conducted satisfactorily, certifying the uterine elevation by laparoscopy in the postoperative and also by the responsible report, that the animal does not relapse in two years. The postoperative complications were not alarming, considering that it ceased 24h after the procedure. The conclusions present in this treatment show that the hysteropexy conducted by videosurgery with toggles application developed the necessary uterine elevation to the liquid drainage, that allows the mare to execute the uterine cleaning by the physiological form.(AU)

Perfil microbiológico e de resistência antimicrobiana in vitro de bactérias isoladas do útero de éguas subférteis / Microbiological and antimicrobial resistance profile in vitro of bacteria isolated from the uterus of subfertile mares

Objetivou-se avaliar os principais microrganismos isolados do útero de éguas subférteis e o perfil de resistência a agentes antimicrobianos in vitro das bactérias. Foram coletadas amostras de 41 éguas com histórico de subfertilidade. Para cultura bacteriana as amostras foram armazenadas em tubos contendo caldo BHI e para cultura fúngica contendo Solução de NaCl a 0,9% e encaminhadas para o LABRAPE-UFRPE. As bactérias isoladas foram submetidas ao teste de sensibilidade in vitro para Amicacina, Gentamicina, Enrofloxacina, Azitromicina, Ceftriaxona, Tetraciclina, Penicilina e Ampicilina. Do total de amostras, 75,6% apresentaram isolamento microbiológico, sendo 25,8% Staphylococcus spp.; 12,9% bacilos Gram-negativos não fermentadores de lactose; 3,22% Streptococcus β-hemolítico; 3,22% E. coli; 3,22% Klebsiella spp. e 3,22% Proteus spp.; 22,6% Bacillus spp. e 6,45% Micrococcus spp. Dentre as amostras isoladas para fungos 6,45% foram Cladosporium spp. Observou-se que 12,9% dos animais apresentaram infecção mista. 95,23% das bactérias foram sensíveis para Amicacina; 90,47% para Gentamicina, Enrofloxacina, Tetraciclina e Ceftriaxona e 80,95% para Azitromicina. Penicilina apresentou 95,24% das amostras resistentes, com 100% das bactérias Gram-negativas e 70% para Ampicilina. A endometrite bacteriana foi a mais prevalente. A presença de infecção fúngica reforça a capacidade desses microrganismos em desenvolver endometrite. Os macrolídeos mostraram-se efetivos e os β-Lactâmicos inviáveis contra bactérias Gram-negativas.(AU)

The objective of this study was to evaluate the main microorganisms isolated from the uterus of subfertile mares and the resistance profile to antimicrobial agents in vitro of the bacteria. Samples were collected from 41 mares with a history of subfertility. For bacterial culture the samples were stored in tubes containing BHI broth and for fungal culture containing 0.9% NaCl solution and sent to LABRAPE-UFRPE. The isolated bacteria were subjected to the in vitro sensitivity test for Amikacin, Gentamicin, Enrofloxacin, Azithromycin, Ceftriaxone, Tetracycline, Penicillin and Ampicillin. 75.6% of the samples presented microbiological isolation, being 25.8% Staphylococcus spp.; 12.9% nonlactose-fermenting Gram-negative bacilli; 3.22% β-hemolytic streptococcus; 3.22% E. coli; 3.22% Klebsiella spp. and 3.22% Proteus spp.; 22.6% Bacillus spp. and 6.45% Micrococcus spp. Among the isolated samples for fungi 6.45% were Cladosporium spp. It was observed that 12.9% of the animals had mixed infection. 95.23% of the bacteria were sensitive to Amikacin; 90.47% for Gentamicin, Enrofloxacin, Tetracycline and Ceftriaxone and 80.95% for Azithromycin. Penicillin showed 95.24% of resistant samples, with 100% of Gram-negative bacteria and 70% for Ampicillin. Bacterial endometritis was the most prevalent. The presence of fungal infection reinforces the ability of these microorganisms to develop endometritis. Macrolides were effective and β-Lactamics were not viable against Gram-negative bacteria.(AU)

Perfil microbiológico e de resistência antimicrobiana in vitro de bactérias isoladas do útero de éguas subférteis / Microbiological and antimicrobial resistance profile in vitro of bacteria isolated from the uterus of subfertile mares

Objetivou-se avaliar os principais microrganismos isolados do útero de éguas subférteis e o perfil de resistência a agentes antimicrobianos in vitro das bactérias. Foram coletadas amostras de 41 éguas com histórico de subfertilidade. Para cultura bacteriana as amostras foram armazenadas em tubos contendo caldo BHI e para cultura fúngica contendo Solução de NaCl a 0,9% e encaminhadas para o LABRAPE-UFRPE. As bactérias isoladas foram submetidas ao teste de sensibilidade in vitro para Amicacina, Gentamicina, Enrofloxacina, Azitromicina, Ceftriaxona, Tetraciclina, Penicilina e Ampicilina. Do total de amostras, 75,6% apresentaram isolamento microbiológico, sendo 25,8% Staphylococcus spp.; 12,9% bacilos Gram-negativos não fermentadores de lactose; 3,22% Streptococcus β-hemolítico; 3,22% E. coli; 3,22% Klebsiella spp. e 3,22% Proteus spp.; 22,6% Bacillus spp. e 6,45% Micrococcus spp. Dentre as amostras isoladas para fungos 6,45% foram Cladosporium spp. Observou-se que 12,9% dos animais apresentaram infecção mista. 95,23% das bactérias foram sensíveis para Amicacina; 90,47% para Gentamicina, Enrofloxacina, Tetraciclina e Ceftriaxona e 80,95% para Azitromicina. Penicilina apresentou 95,24% das amostras resistentes, com 100% das bactérias Gram-negativas e 70% para Ampicilina. A endometrite bacteriana foi a mais prevalente. A presença de infecção fúngica reforça a capacidade desses microrganismos em desenvolver endometrite. Os macrolídeos mostraram-se efetivos e os β-Lactâmicos inviáveis contra bactérias Gram-negativas.

The objective of this study was to evaluate the main microorganisms isolated from the uterus of subfertile mares and the resistance profile to antimicrobial agents in vitro of the bacteria. Samples were collected from 41 mares with a history of subfertility. For bacterial culture the samples were stored in tubes containing BHI broth and for fungal culture containing 0.9% NaCl solution and sent to LABRAPE-UFRPE. The isolated bacteria were subjected to the in vitro sensitivity test for Amikacin, Gentamicin, Enrofloxacin, Azithromycin, Ceftriaxone, Tetracycline, Penicillin and Ampicillin. 75.6% of the samples presented microbiological isolation, being 25.8% Staphylococcus spp.; 12.9% nonlactose-fermenting Gram-negative bacilli; 3.22% β-hemolytic streptococcus; 3.22% E. coli; 3.22% Klebsiella spp. and 3.22% Proteus spp.; 22.6% Bacillus spp. and 6.45% Micrococcus spp. Among the isolated samples for fungi 6.45% were Cladosporium spp. It was observed that 12.9% of the animals had mixed infection. 95.23% of the bacteria were sensitive to Amikacin; 90.47% for Gentamicin, Enrofloxacin, Tetracycline and Ceftriaxone and 80.95% for Azithromycin. Penicillin showed 95.24% of resistant samples, with 100% of Gram-negative bacteria and 70% for Ampicillin. Bacterial endometritis was the most prevalent. The presence of fungal infection reinforces the ability of these microorganisms to develop endometritis. Macrolides were effective and β-Lactamics were not viable against Gram-negative bacteria.

Assessment of hematological parameters and uterine hemodynamic indices in bitches with pyometra

Background: Pyometra is defined as chronic purulent inflammation of the uterus that causes changes in hematologicaland biochemical parameters. The disease is characterized with bacterial infection and pus accumulation in the uterus.Transabdominal B-mode ultrasonography provides easy and certain diagnosis of this disease. The hemodynamic changesin pyometra are evaluated by Doppler ultrasonography. The aim of the study is to determine the changes in hematologicalparameters and Doppler indices in bitches with pyometra, diestrus healthy bitches and evaluate the relationship betweenhematological parameters and hemodynamic indices within the both groups.Materials, Methods & Results: A total number of 27 bitches were enrolled in the study. The healthy diestrus bitches (groupH; n = 7) aged 6.2 ± 1.14 years, weighted 14.57 ± 3.75 kg. The bitches with pyometra (group PYO; n = 20) aged 9.1 ± 0.62years and weighted 17.65 ± 2.60 kg. Before all bitches had ovariohisterectomy, hematological analyses were performed.Transabdominal ultrasonography (USG) was performed with a 6.6 MHz convex transducer. The widest cross-sectionaluterine diameter (UD), wall thickness of uterine horns (UWT) and presence of luminal content were evaluated. Diameterof the uterine artery (DUA) was measured on a mapped color image using the USG software program. The examinationwas carried out with pulsed-wave Doppler USG to characterize the waveform of the uterine artery (UA). Anechogenic areasin uterine lumen, increase in UD and UWT were observed in group PYO. All cases in group PYO had luminal content inboth uterine horns ranging from 1.2 to 5.6 cm. The DUAs were measured in group H and in group PYO as 1.75 ± 0.03mm, 1.94 ± 0.08 mm; respectively (P < 0.05). The PI and RI values of group PYO were lower than group H (P < 0.001).Hematological analysis results showed that...

Assessment of hematological parameters and uterine hemodynamic indices in bitches with pyometra

Background: Pyometra is defined as chronic purulent inflammation of the uterus that causes changes in hematologicaland biochemical parameters. The disease is characterized with bacterial infection and pus accumulation in the uterus.Transabdominal B-mode ultrasonography provides easy and certain diagnosis of this disease. The hemodynamic changesin pyometra are evaluated by Doppler ultrasonography. The aim of the study is to determine the changes in hematologicalparameters and Doppler indices in bitches with pyometra, diestrus healthy bitches and evaluate the relationship betweenhematological parameters and hemodynamic indices within the both groups.Materials, Methods & Results: A total number of 27 bitches were enrolled in the study. The healthy diestrus bitches (groupH; n = 7) aged 6.2 ± 1.14 years, weighted 14.57 ± 3.75 kg. The bitches with pyometra (group PYO; n = 20) aged 9.1 ± 0.62years and weighted 17.65 ± 2.60 kg. Before all bitches had ovariohisterectomy, hematological analyses were performed.Transabdominal ultrasonography (USG) was performed with a 6.6 MHz convex transducer. The widest cross-sectionaluterine diameter (UD), wall thickness of uterine horns (UWT) and presence of luminal content were evaluated. Diameterof the uterine artery (DUA) was measured on a mapped color image using the USG software program. The examinationwas carried out with pulsed-wave Doppler USG to characterize the waveform of the uterine artery (UA). Anechogenic areasin uterine lumen, increase in UD and UWT were observed in group PYO. All cases in group PYO had luminal content inboth uterine horns ranging from 1.2 to 5.6 cm. The DUAs were measured in group H and in group PYO as 1.75 ± 0.03mm, 1.94 ± 0.08 mm; respectively (P < 0.05). The PI and RI values of group PYO were lower than group H (P < 0.001).Hematological analysis results showed that...(AU)

Ozonioterapia no tratamento auxiliar de éguas inférteis: Potencial angiogênico e antimicrobiano / Ozone therapy in the supporting treatment of infertile mares: Angiogenic and antimicrobial actions

A endometrite infecciosa é considerada uma das principais causas de infertilidade em éguas. Por sua vez, alterações degenerativas endometriais interferem diretamente na hemodinâmica uterina, podendo comprometer a fertilização e a manutenção da gestação. Por serem poderosos agentes oxidantes nãoespecíficos, o gás ozônio (O3) e os óleos vegetais ozonizados tem sido utilizados como alternativas às terapias antimicrobianas convencionais. Além de apresentar ação germicida frente a forma livre de fungos e bactérias, a ozonioterapia possui marcante potencial antibiofilme. Adicionalmente, o preenchimento da cavidade uterina de éguas com gás O3 estimula a angiogênese local sem apresentar efeitos deletérios ao endométrio. Dessa forma, os potencias antimicrobianos e angiogênicos fazem da ozonioterapia uma promissora alterativa para o tratamento adjuvante de endometrites crônicas em éguas.

Infectious endometritis is considered one of the main causes of infertility in mares. Similarly, endometrial degenerative changes directly affect the uterine hemodynamics, compromising the fertilization and the maintenance of pregnancy. Based on their powerful non-specific oxidizing action, ozone (O3) and ozonized vegetable oils have been used as alternatives to conventional antimicrobial therapies. In addition to the germicidal effect against the free-living cells of fungi and bacteria, O3 therapy has showed unspecific anti-biofilm potential. Additionally, the insufflation of the uterine cavity of mares with O3 stimulates local angiogenesis without inducing deleterious effects on the endometrium. Therefore, the antimicrobial and angiogenic potentials make O3 therapy a promising alternative for the adjuvant treatment of persistent endometritis in mares.

Canine pyometra: interferences of age and type in blood count and serum biochemistry / Piometra canina: interferências da idade e tipo sobre o hemograma e a bioquímica sérica

Hematological and serum biochemical characteristics and prevalence of microorganisms in the uterine content of bitches with pyometra were described, according to type and age. This study was carried out at the Veterinary Medicine Hospital Renato Rodenburg de Medeiros Netto of the UFBA with 132 patients diagnosed with pyometra through imaging and laboratory tests, divided into two groups: Group 1 - less than eight years (n=72) and Group 2 - more than eight years (n=60). Both groups were submitted to Ovariohysterectomy (OH), in which blood and uterine lumen secretion samples were collected. The highest incidence of pyometra was found in bitches under 8 years (54.5%), Poodle breed (31.8%) and mixed-breed (27.3%). Open pyometra represented 80.3% of all cases. The death rate (6.0%) did not show significant difference between the types. Anemia (73.0%), thrombocytopenia (41.2%) and leukocytosis (77.0%) were observed. Urea and ALP were above the reference values in 41.8% and 52.2% of each group, respectively, while ALT (94.0%) and creatine (82%) remained normal in most animals. Serum biochemistry did not show significant differences (P<0.05). Escherichia coli and Klebsiella sp. grew in 33.3% and 16.7% of the samples, respectively. Therefore, no significant hematological and serum biochemical differences were observed in bitches with pyometra in both age categories.(AU)

Descreveu-se características hematológicas, bioquímicas séricas e prevalência de microrganismos no conteúdo uterino de cadelas com piometra, de acordo com o tipo e idade. Realizou-se este estudo no Hospital de Medicina Veterinária Renato Rodenburg de Medeiros Netto da UFBA com 132 pacientes diagnosticadas com piometra, por exames de imagem e laboratoriais, divididas em dois grupos: Grupo 1 menos de oito anos (n=72) e Grupo 2 mais de oito anos (n=60), submetidas a Ovariectomia (OH), quando se coletou amostras de sangue e secreção do lúmen uterino. A incidência maior deu-se em cadelas abaixo de 8 anos (54,5%), da raça Poodle (31,8%) e sem raça definida (SRD) (27,3%), sendo 80,3% de piometra aberta. A taxa de óbito (6,0%) não apresentou diferença significativa entre os tipos. Observou-se a ocorrência de anemia (73,0%), trombocitopenia (41,2%) e leucocitose (77,0%). Os valores de ureia e FA estiveram acima dos valores de referência em 41,8% e 52,2% das cadelas respectivamente, enquanto a ALT (94,0%) e a creatina (82%) mantiveram-se dentro dos valores de referência na maioria dos animais. A bioquímica sérica não apresentou diferenças significativas (P<0,05). Observou-se crescimento de Escherichia coli e Klebsiella sp. em 33,3% e 16,7% das amostras, respectivamente. Sendo assim, não se observou diferenças significativas hematológicas e na bioquímica sérica de cadelas com piometra nas categorias de idade.(AU)

Canine pyometra: interferences of age and type in blood count and serum biochemistry / Piometra canina: interferências da idade e tipo sobre o hemograma e a bioquímica sérica

Hematological and serum biochemical characteristics and prevalence of microorganisms in the uterine content of bitches with pyometra were described, according to type and age. This study was carried out at the Veterinary Medicine Hospital Renato Rodenburg de Medeiros Netto of the UFBA with 132 patients diagnosed with pyometra through imaging and laboratory tests, divided into two groups: Group 1 - less than eight years (n=72) and Group 2 - more than eight years (n=60). Both groups were submitted to Ovariohysterectomy (OH), in which blood and uterine lumen secretion samples were collected. The highest incidence of pyometra was found in bitches under 8 years (54.5%), Poodle breed (31.8%) and mixed-breed (27.3%). Open pyometra represented 80.3% of all cases. The death rate (6.0%) did not show significant difference between the types. Anemia (73.0%), thrombocytopenia (41.2%) and leukocytosis (77.0%) were observed. Urea and ALP were above the reference values in 41.8% and 52.2% of each group, respectively, while ALT (94.0%) and creatine (82%) remained normal in most animals. Serum biochemistry did not show significant differences (P<0.05). Escherichia coli and Klebsiella sp. grew in 33.3% and 16.7% of the samples, respectively. Therefore, no significant hematological and serum biochemical differences were observed in bitches with pyometra in both age categories.

Descreveu-se características hematológicas, bioquímicas séricas e prevalência de microrganismos no conteúdo uterino de cadelas com piometra, de acordo com o tipo e idade. Realizou-se este estudo no Hospital de Medicina Veterinária Renato Rodenburg de Medeiros Netto da UFBA com 132 pacientes diagnosticadas com piometra, por exames de imagem e laboratoriais, divididas em dois grupos: Grupo 1 – menos de oito anos (n=72) e Grupo 2 – mais de oito anos (n=60), submetidas a Ovariectomia (OH), quando se coletou amostras de sangue e secreção do lúmen uterino. A incidência maior deu-se em cadelas abaixo de 8 anos (54,5%), da raça Poodle (31,8%) e sem raça definida (SRD) (27,3%), sendo 80,3% de piometra aberta. A taxa de óbito (6,0%) não apresentou diferença significativa entre os tipos. Observou-se a ocorrência de anemia (73,0%), trombocitopenia (41,2%) e leucocitose (77,0%). Os valores de ureia e FA estiveram acima dos valores de referência em 41,8% e 52,2% das cadelas respectivamente, enquanto a ALT (94,0%) e a creatina (82%) mantiveram-se dentro dos valores de referência na maioria dos animais. A bioquímica sérica não apresentou diferenças significativas (P<0,05). Observou-se crescimento de Escherichia coli e Klebsiella sp. em 33,3% e 16,7% das amostras, respectivamente. Sendo assim, não se observou diferenças significativas hematológicas e na bioquímica sérica de cadelas com piometra nas categorias de idade.

Leishmania infantum in the reproductive organs of dogs / Leishmania infantum em órgãos reprodutivos de cães

Leishmania infantum causes canine leishmaniasis. Using parasitological and molecular analyses, we identified L. infantum in the reproductive organs of male and female dogs. Using histochemistry, immunohistochemistry, and PCR, we examined tissue samples from the reproductive organs of 8 male dogs and 16 female dogs diagnosed with leishmaniasis. Despite the absence of macroscopic or microscopic lesions in these organs, we observed L. infantum amastigotes in tissue samples from the testis and the uterus. PCR and sequencing of these tissues revealed sequences that matched 100% with L. infantum DNA available at GenBank. The presence of L. infantum amastigotes and DNA in testicular and uterine tissue samples suggested that these organs can harbor the parasite without associated macroscopic or microscopic lesions, and this can be especially important in the vertical and venereal transmission of leishmaniasis in dogs.

Leishmania infantum é agente etiológico da leishmaniose canina. Por meio de análises parasitológicas e moleculares, a presença do parasita foi investigada em órgãos reprodutivos de cães machos e fêmeas. Amostras de tecidos dos órgãos reprodutivos de 8 cães machos e 16 fêmeas diagnosticados com leishmaniose foram avaliadas por histoquímica, imunohistoquímica e PCR. Apesar de não terem sido observadas lesões macroscópicas ou microscópicas nos órgãos reprodutivos desses cães, formas amastigotas de L. infantum foram observadas em amostras teciduais do testículo e útero. A PCR e o sequenciamento do DNA extraído desses tecidos revelaram sequências 100% idênticas a L. infantum depositadas no GenBank. Nossos resultados sugerem que os testículos e o útero podem abrigar o parasita, sem associação com lesões macroscópicas ou microscópicas, o que pode ter uma grande importância na transmissão venérea e vertical da leishmaniose entre cães.

Leishmania infantum in the reproductive organs of dogs / Leishmania infantum em órgãos reprodutivos de cães

Leishmania infantum causes canine leishmaniasis. Using parasitological and molecular analyses, we identified L. infantum in the reproductive organs of male and female dogs. Using histochemistry, immunohistochemistry, and PCR, we examined tissue samples from the reproductive organs of 8 male dogs and 16 female dogs diagnosed with leishmaniasis. Despite the absence of macroscopic or microscopic lesions in these organs, we observed L. infantum amastigotes in tissue samples from the testis and the uterus. PCR and sequencing of these tissues revealed sequences that matched 100% with L. infantum DNA available at GenBank. The presence of L. infantum amastigotes and DNA in testicular and uterine tissue samples suggested that these organs can harbor the parasite without associated macroscopic or microscopic lesions, and this can be especially important in the vertical and venereal transmission of leishmaniasis in dogs.(AU)

Leishmania infantum é agente etiológico da leishmaniose canina. Por meio de análises parasitológicas e moleculares, a presença do parasita foi investigada em órgãos reprodutivos de cães machos e fêmeas. Amostras de tecidos dos órgãos reprodutivos de 8 cães machos e 16 fêmeas diagnosticados com leishmaniose foram avaliadas por histoquímica, imunohistoquímica e PCR. Apesar de não terem sido observadas lesões macroscópicas ou microscópicas nos órgãos reprodutivos desses cães, formas amastigotas de L. infantum foram observadas em amostras teciduais do testículo e útero. A PCR e o sequenciamento do DNA extraído desses tecidos revelaram sequências 100% idênticas a L. infantum depositadas no GenBank. Nossos resultados sugerem que os testículos e o útero podem abrigar o parasita, sem associação com lesões macroscópicas ou microscópicas, o que pode ter uma grande importância na transmissão venérea e vertical da leishmaniose entre cães.(AU)

Caracterização fúngica e formação de biofilme em éguas com endometrite / Fungal characterization and biofilm formation in mares with endometritis

A endometrite é a principal causa de infertilidade em éguas, além de gerar grandes transtornos econômicos e produtivos. Objetivou-se caracterizar a citologia, cultura bacteriana e fúngica, além da identificação da formação de biofilme em éguas com endometrite. Amostras de 70 éguas foram coletadas para citologia uterina e exame microbiológico. A determinação da formação de biofilme foi realizada através da técnica de cristal violeta. Das 70 éguas diagnosticadas com endometrite 43 (61,4%) apresentaram infecção bacteriana e/ou fúngica. Das 43 éguas, 30,2% (13/43) apresentaram infecção fúngica, os mais evidenciados foram Aspergillus spp. e Candida albicans, Curvalaria spp., Cladosporium spp. e Zygomices spp. Dos fungos identificados, 9/13 (69,2%) formaram biofilme. Esses resultados revelam números de infecção fúngica acima da média em comparação com a literatura. Várias causas são reportadas ao aumento dos casos de endometrite fúngica, dentre elas o aumento no uso das biotecnologias reprodutivas provocando um excesso de manipulação uterina. É de suma importância a identificação do agente, o conhecimento da suscetibilidade farmacológica e a comprovação da produção de biofilme em casos de endometrite. Estas ferramentas podem fornecer subsídios ainda mais importantes para melhorar a eficiência reprodutiva e sanitária dos rebanhos equinos.(AU)

Endometritis is the main cause of infertility in mares, besides generating major economic and productive disorders. The objective was to characterize the cytology, microbiological and fungal culture, as well as the identification of biofilm formation in mares with endometritis. Samples of seventy mares were collected for uterine cytology and microbiological examination. The determination of biofilm formation was performed using violet crystal technique. Of the seventy mares diagnosed with endometritis 43 (61.4%) presented bacterial and/or fungal infection. From the 43 mares, 30.2% (13/43) presented fungal infection, the most evidenced were Aspergillus spp. and Candida albicans, Curvalaria spp., Cladosporium spp. and Zygomices spp. Of the identified fungi, 9/13 (69.2%) formed biofilm. These results reveal above average numbers of fungal infection compared to the literature. Several causes are related to the increase in cases of fungal endometritis, among them the increase in the use of reproductive biotechnologies, causing an excessive uterine manipulation. Identification of the agent, knowledge of pharmacological susceptibility and evidence of biofilm production in endometritis cases are extremely important. These tools can provide even more important subsidies to improve the reproductive and sanitary efficiency of equine herds.(AU)

Caracterização fúngica e formação de biofilme em éguas com endometrite / Fungal characterization and biofilm formation in mares with endometritis

A endometrite é a principal causa de infertilidade em éguas, além de gerar grandes transtornos econômicos e produtivos. Objetivou-se caracterizar a citologia, cultura bacteriana e fúngica, além da identificação da formação de biofilme em éguas com endometrite. Amostras de 70 éguas foram coletadas para citologia uterina e exame microbiológico. A determinação da formação de biofilme foi realizada através da técnica de cristal violeta. Das 70 éguas diagnosticadas com endometrite 43 (61,4%) apresentaram infecção bacteriana e/ou fúngica. Das 43 éguas, 30,2% (13/43) apresentaram infecção fúngica, os mais evidenciados foram Aspergillus spp. e Candida albicans, Curvalaria spp., Cladosporium spp. e Zygomices spp. Dos fungos identificados, 9/13 (69,2%) formaram biofilme. Esses resultados revelam números de infecção fúngica acima da média em comparação com a literatura. Várias causas são reportadas ao aumento dos casos de endometrite fúngica, dentre elas o aumento no uso das biotecnologias reprodutivas provocando um excesso de manipulação uterina. É de suma importância a identificação do agente, o conhecimento da suscetibilidade farmacológica e a comprovação da produção de biofilme em casos de endometrite. Estas ferramentas podem fornecer subsídios ainda mais importantes para melhorar a eficiência reprodutiva e sanitária dos rebanhos equinos.

Endometritis is the main cause of infertility in mares, besides generating major economic and productive disorders. The objective was to characterize the cytology, microbiological and fungal culture, as well as the identification of biofilm formation in mares with endometritis. Samples of seventy mares were collected for uterine cytology and microbiological examination. The determination of biofilm formation was performed using violet crystal technique. Of the seventy mares diagnosed with endometritis 43 (61.4%) presented bacterial and/or fungal infection. From the 43 mares, 30.2% (13/43) presented fungal infection, the most evidenced were Aspergillus spp. and Candida albicans, Curvalaria spp., Cladosporium spp. and Zygomices spp. Of the identified fungi, 9/13 (69.2%) formed biofilm. These results reveal above average numbers of fungal infection compared to the literature. Several causes are related to the increase in cases of fungal endometritis, among them the increase in the use of reproductive biotechnologies, causing an excessive uterine manipulation. Identification of the agent, knowledge of pharmacological susceptibility and evidence of biofilm production in endometritis cases are extremely important. These tools can provide even more important subsidies to improve the reproductive and sanitary efficiency of equine herds.

Canine pyometra: interferences of age and type in blood count and serum biochemistry / Piometra canina: interferências da idade e tipo sobre o hemograma e a bioquímica sérica

Hematological and serum biochemical characteristics and prevalence of microorganisms in the uterine content of bitches with pyometra were described, according to type and age. This study was carried out at the Veterinary Medicine Hospital Renato Rodenburg de Medeiros Netto of the UFBA with 132 patients diagnosed with pyometra through imaging and laboratory tests, divided into two groups: Group 1 - less than eight years (n=72) and Group 2 - more than eight years (n=60). Both groups were submitted to Ovariohysterectomy (OH), in which blood and uterine lumen secretion samples were collected. The highest incidence of pyometra was found in bitches under 8 years (54.5%), Poodle breed (31.8%) and mixed-breed (27.3%). Open pyometra represented 80.3% of all cases. The death rate (6.0%) did not show significant difference between the types. Anemia (73.0%), thrombocytopenia (41.2%) and leukocytosis (77.0%) were observed. Urea and ALP were above the reference values in 41.8% and 52.2% of each group, respectively, while ALT (94.0%) and creatine (82%) remained normal in most animals. Serum biochemistry did not show significant differences (P<0.05). Escherichia coli and Klebsiella sp. grew in 33.3% and 16.7% of the samples, respectively. Therefore, no significant hematological and serum biochemical differences were observed in bitches with pyometra in both age categories.

Descreveu-se características hematológicas, bioquímicas séricas e prevalência de microrganismos no conteúdo uterino de cadelas com piometra, de acordo com o tipo e idade. Realizou-se este estudo no Hospital de Medicina Veterinária Renato Rodenburg de Medeiros Netto da UFBA com 132 pacientes diagnosticadas com piometra, por exames de imagem e laboratoriais, divididas em dois grupos: Grupo 1 ­ menos de oito anos (n=72) e Grupo 2 ­ mais de oito anos (n=60), submetidas a Ovariectomia (OH), quando se coletou amostras de sangue e secreção do lúmen uterino. A incidência maior deu-se em cadelas abaixo de 8 anos (54,5%), da raça Poodle (31,8%) e sem raça definida (SRD) (27,3%), sendo 80,3% de piometra aberta. A taxa de óbito (6,0%) não apresentou diferença significativa entre os tipos. Observou-se a ocorrência de anemia (73,0%), trombocitopenia (41,2%) e leucocitose (77,0%). Os valores de ureia e FA estiveram acima dos valores de referência em 41,8% e 52,2% das cadelas respectivamente, enquanto a ALT (94,0%) e a creatina (82%) mantiveram-se dentro dos valores de referência na maioria dos animais. A bioquímica sérica não apresentou diferenças significativas (P<0,05). Observou-se crescimento de Escherichia coli e Klebsiella sp. em 33,3% e 16,7% das amostras, respectivamente. Sendo assim, não se observou diferenças significativas hematológicas e na bioquímica sérica de cadelas com piometra nas categorias de idade.

Canine pyometra – an update and revision of diagnostic terminology

Pyometra is frequently diagnosed in female dogs, and it is characterized by endometrial inflammation, accumulation of purulent exudate within the lumen, and bacterial infection. In the dog, pyometra affects more often aged nulliparous bitches during the luteal phase. Pathogenesis of pyometra is multifactorial and progesterone seems to be a key factor. Cystic endometrial hyperplasia has been described as a predisposing condition for canine pyometra. However, a recent study demonstrated that cystic endometrial hyperplasia is not significantly associated with naturally occurring pyometra, whereas there is a significant association of this condition with pseudoplacentational endometrial hyperplasia. The aim of this review is to provide an update on canine pyometra, with focus on its association with uterine hyperplasic lesions, which supports a proposal for adoption of more adequate diagnostic terminology.