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1.
J Avian Med Surg ; 35(3): 313-324, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34677030

RESUMO

Birds are among the most visually proficient group of animals on the planet; however, their inability to visualize and discriminate translucent glass structures results in an extreme number of deaths worldwide from high-speed collisions. Despite reports of avian glass collisions in North America, only a few studies have been developed to understand this problem in South America, and none evaluated radiographic and postmortem findings. One hundred cadavers were examined radiographically and postmortem, and data from 186 collision reports were analyzed for seasonality (website and manual reports and cadavers). A total of 34 different species of birds within 22 families were evaluated for this study, with the rufous-bellied thrush (Turdus rufiventris; n = 12), eared dove (Zenaida auriculata; n = 12), and ruddy ground dove (Columbina talpacoti; n = 10) being the most common species. Only 6 (27.7%) migratory species were reported: Sick's swift (Chaetura meridionalis), small-billed elaenia (Elaenia parvirostris), Black Jacobin (Florisuga fusca), Great kiskadee (Pitangus sulphuratus), Double-collared seedeater (Sporophila caerulescens), and Creamy-bellied thrush (Turdus amaurochalinus). Males (51) were more frequently reported than females (5), and 50.1% of the males had active gonads. Sex was unable to be determined in 44 birds. The most common radiographic lesion, noted in 16 of 82 (19.5%) animals, was loss of coelomic definition, suggestive of hemorrhage. Prevalent postmortem findings included skull hemorrhages (58/75, 77.3%) and encephalic contusions (47/73, 64.4%), followed by coelomic hemorrhages (33/81, 40.7%). Most of the window collisions (61/186, 32.8%) occurred during spring, the most common breeding season of avian species in Brazil. Cranioencephalic trauma was identified as the primary cause of mortality associated with birds flying into glass windows. Migration does not appear to be the main predisposing factor for window collisions by birds in Brazil. Increased activity and aggression related to breeding season, especially in males, may be a more important predisposing factor for window collision accidents.


Assuntos
Passeriformes , Aves Canoras , Animais , Brasil , Fatores Epidemiológicos , Feminino , Vidro , Masculino
2.
Vet Anaesth Analg ; 47(6): 826-834, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32981837

RESUMO

OBJECTIVE: To compare between blind and smartphone-based endoscope-assisted techniques for endotracheal intubation in rabbits. STUDY DESIGN: Prospective clinical study. ANIMALS: A total of 34 rabbits. METHODS: Rabbits were assigned to four groups: intubation by a veterinary anesthesiologist (VA) or an exotic pet medicine specialist (EPS) using blind or endoscope-assisted techniques. Propofol dose, number of attempts until successful intubation, total time for intubation, duration of the successful attempt and occurrence of lingual cyanosis/laryngeal lesions were recorded. Data were analyzed by t test, Wilcoxon-Mann-Whitney U test or chi-square test. Pearson correlation for body weight was performed. RESULTS: The success rate of blind intubation was 88.9% and 77.8% for VA and EPS, respectively. Propofol dose, total and median number of attempts, total time for intubation and duration of the successful attempt were 3.1 (0-6.2) mg kg-1, 19, 2 (1-5), 79 ± 65 and 30 ± 20 seconds for VA and 1.5 (0-4.5) mg kg-1, 24, 3 (1-5), 136 ± 92 and 38 ± 16 seconds for EPS. The success rate of endoscope-assisted intubation was 87.5% for both operators. Propofol dose, total and median number of attempts, total time for intubation and duration of the successful attempt were 2.5 (1.3-7.4) mg kg-1, 22, 3 (1-5), 170 (65-368) and 46 (22-150) seconds for VA and 3.2 (0-6) mg kg-1, 11, 1 (1-4), 56 (27-432) and 55 (26-79) seconds for EPS. VA performed blind intubation more quickly, propofol dose was lower and cyanosis was less frequent than in the endoscope-assisted group. CONCLUSIONS AND CLINICAL RELEVANCE: Both techniques were reliable for rabbit endotracheal intubation. Best results were achieved when the operator was experienced in the technique. The smartphone-based endoscope is a useful aid for rabbit intubation.


Assuntos
Endoscopia/veterinária , Intubação Intratraqueal/veterinária , Smartphone , Animais , Endoscopia/métodos , Feminino , Intubação Intratraqueal/métodos , Masculino , Coelhos , Método Simples-Cego
4.
Artigo em Inglês | MEDLINE | ID: mdl-24515628

RESUMO

Tonic immobility (TI) is a response to fear or threat by remaining motionless, principally when attacked by predators from which there is no possibility of escape. Thus, here we demonstrate a way of easily reproducing this phenomenon in a laboratory setting and characterize the cardiac electromechanical alterations during TI. We observed a significant decrease in heart rate (HR) and changes of rhythm in electrocardiogram during TI in rabbits. Echocardiogram showed a significant increase in the left ventricle chamber diameter during systole and a consequent decrease in fractional shortening and ejection fraction, in addition to the HR and rhythm changes. There was also a significant decrease in aortic and pulmonary artery blood flow. Diastolic functional changes included a significant decrease of the peak atrial contraction velocity (A peak) and consequent increase in the ratio of peak early diastolic velocity to A peak and increased isovolumetric relaxation time. We were able to prove that TI changes the cardiac function considerably. Although the "fight-or-flight" response is the most common response to fear, which is characterized by the action of sympathetic nervous system with tachycardia and increased physical activity, TI is an alternative anti-predator behavior causing cardiac changes opposite to the "fight-or-flight" phenomenon.


Assuntos
Reação de Congelamento Cataléptica/fisiologia , Frequência Cardíaca/fisiologia , Coração/fisiologia , Animais , Aorta/fisiologia , Diástole/fisiologia , Eletrocardiografia , Medo/fisiologia , Feminino , Ventrículos do Coração , Masculino , Artéria Pulmonar/fisiologia , Coelhos , Fluxo Sanguíneo Regional , Sístole/fisiologia , Fatores de Tempo
5.
J Med Primatol ; 42(6): 336-42, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23931624

RESUMO

BACKGROUND: The acute abdomen is any abdominal disorder resulting in pain, shock, or sepsis. Although it has a multifactorial etiology, the primary cause is gastrointestinal tract pathology. The aim of this study was to assess the contribution of abdominal ultrasound as a complementary diagnostic tool in non-human primates with an acute abdomen. METHODS: Three different non-human primates with clinical signs of acute abdomen were evaluated as follows: a chimpanzee (Pan troglodytes), a tufted capuchin (Cebus apella), and a black-tufted marmoset (Callithrix penicillata). RESULTS: Ultrasonographic examination assisted in the identification of a variety of differential diagnoses and was used in decision-making for exploratory laparotomy, which was performed in two animals. Ultrasound examination confirmed the source of the acute abdomen as the gastrointestinal tract in the three animals studied. CONCLUSIONS: Abdominal ultrasound is a useful technique for the investigation of signs of acute abdomen in non-human primates.


Assuntos
Abdome Agudo/diagnóstico por imagem , Callithrix , Cebus , Enteropatias/diagnóstico por imagem , Pan troglodytes , Abdome Agudo/cirurgia , Abdome Agudo/veterinária , Animais , Diagnóstico Diferencial , Feminino , Enteropatias/cirurgia , Enteropatias/veterinária , Laparotomia , Masculino , Ultrassonografia
7.
J Vet Dent ; 30(2): 90-4, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24006718

RESUMO

A 10-year-old DSH cat was referred for a dental evaluation and extraction procedure. Subsequently, the animal developed an acute onset of ocular discharge. Ophthalmologic examination revealed presence of unilateral ocular mucoid discharge leading to a diagnosis of epiphora secondary to nasolacrimal duct obstruction. Dacryocystorhinography was performed and confirmed the presence of a nasolacrimal duct obstruction, presumably acquired after an invasive dental procedure. Additionally, a vinyl cast in situ study of the nasolacrymal apparatus was performed to demonstrate the route of the nasolacrimal duct in the cat and its relationship to oral dental structures. This report documents an unusual case in which excessive inflammation/edema following tooth extraction caused acute epiphora secondary to extraluminal compression of the distal nasolacrimal duct.


Assuntos
Doença Iatrogênica , Obstrução dos Ductos Lacrimais/veterinária , Extração Dentária/veterinária , Animais , Gatos , Dente Canino/cirurgia , Exposição da Polpa Dentária/cirurgia , Exposição da Polpa Dentária/veterinária , Doenças do Aparelho Lacrimal/etiologia , Doenças do Aparelho Lacrimal/veterinária , Obstrução dos Ductos Lacrimais/etiologia , Masculino , Infecções Estafilocócicas/veterinária , Irrigação Terapêutica , Extração Dentária/efeitos adversos , Reabsorção de Dente/cirurgia , Reabsorção de Dente/veterinária
8.
Artigo em Inglês | MEDLINE | ID: mdl-37087612

RESUMO

OBJECTIVE: To determine the value of microbubble contrast cystosonography in the diagnosis of bladder rupture in animals. DESIGN: Prospective, method comparison study from November 2019 to October 2020. SETTING: University teaching hospital. ANIMALS: Thirty-four ethically sourced cadavers of dogs, rats, and rabbits. INTERVENTIONS: In a prospective and blinded study, the cadavers were divided into 2 randomized groups: with bladder rupture (CR), and without bladder rupture (SR). Urinary catheterization was performed in all cadavers. Through the urethral catheter, bladders in CR group were ruptured using a rigid stainless steel guide wire. Microbubble contrast was infused into the bladder through the urethral catheter, while a single, blinded observer sonographically assessed the bladder. The time to diagnosis and the number of attempts needed for diagnosis were recorded. MEASUREMENTS AND MAIN RESULTS: The study included cadavers of 16 female Wistar rats, 6 female dogs, 11 male dogs, and 1 male rabbit. Time to diagnosis in dogs (2.25 ± 0.91 min) was statistically higher when compared to rats (1.15 ± 0.75 min; P = 0.03). Of the 34 cases, incorrect diagnosis of bladder rupture was made in only 2 dogs (6%), indicating a diagnostic sensitivity of 88.88%, specificity of 100%, and an accuracy of 94%. The positive predictive value was 1 and the negative predictive value was 0.9. CONCLUSIONS: Our study showed that the described method is accurate, sensitive, and specific for the detection of bladder rupture in animal cadavers of different species, size, and sex.


Assuntos
Traumatismos Abdominais , Doenças do Cão , Traumatismos Torácicos , Doenças da Bexiga Urinária , Masculino , Feminino , Ratos , Cães , Animais , Coelhos , Bexiga Urinária/diagnóstico por imagem , Meios de Contraste , Estudos Prospectivos , Ratos Wistar , Doenças da Bexiga Urinária/diagnóstico por imagem , Doenças da Bexiga Urinária/veterinária , Traumatismos Abdominais/veterinária , Traumatismos Torácicos/veterinária
9.
PLoS One ; 17(9): e0274087, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36137162

RESUMO

The purpose of this study was to evaluate and compare positive cystography techniques at 5%, 10%, and 20%, as well as three different double-contrast protocols for detecting radiolucent uroliths with a diameter of less than 3.0 mm in dogs. Six cadavers were used, one was selected at random to represent the negative control, and the others were submitted to urolith implantation in the bladder by urethral catheter. Three radiology professionals blindly accessed ventrodorsal and -lateral projections of each test. Contrast at 20% showed greater diagnostic sensitivity, but with greater difficulty identifying the number and size of the uroliths. Consequently, double-contrast techniques are better and should be used for diagnostic and therapeutic planning. Sensitivity and specificity tests demonstrated that positive 5% cystography and different concentrations of double contrast obtained better results in terms of sensitivity and specificity. However, due to the presence of a greater amount of artifacts in the 5% cystography, it is suggested that double contrast is used for this purpose, especially with the removal of contrast excess (protocol 2).


Assuntos
Doenças do Cão , Cálculos Urinários , Animais , Doenças do Cão/diagnóstico por imagem , Cães , Radiografia , Sensibilidade e Especificidade , Bexiga Urinária/diagnóstico por imagem , Cálculos Urinários/diagnóstico por imagem
10.
Top Companion Anim Med ; 43: 100505, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33346164

RESUMO

The aim of the study was to estimate the prevalence of congenital heart diseases in dogs attending 2 veterinary hospitals in Brazil and to identify possible associations between these conditions and epidemiological characteristics. A retrospective study was carried out in the cardiology sections of 2 veterinary hospitals during a period of 70 months from January 2012 and October 2017. Of a total of 6710 dogs that attended the cardiology sections of the hospitals, 109 congenital heart diseases were identified in 95 patients, representing a prevalence of 1.6%. Findings consistent with previous literature included subaortic stenosis and pulmonic stenosis as the most commonly diagnosed conditions, in addition to a higher predisposition of females to patent ductus arteriosus (PDA). In contrast, the novel findings included a higher prevalence of atrial septal defect and a lower prevalence of patent ductus arteriosus. The majority of the animals included were over 1 year of age at the time of diagnosis (67%) especially in the subaortic stenosis group. Also, a predisposition of the Maltese to ventricular septal defect was observed. The information obtained in the present study contributes to research that describes epidemiological characteristics of dogs with congenital heart disease in a previously unreported location.


Assuntos
Doenças do Cão , Cardiopatias Congênitas , Comunicação Interventricular , Estenose da Valva Pulmonar , Animais , Cães , Feminino , Cardiopatias Congênitas/veterinária , Comunicação Interventricular/veterinária , Estenose da Valva Pulmonar/veterinária , Estudos Retrospectivos
11.
J Vet Intern Med ; 34(1): 45-52, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31875342

RESUMO

BACKGROUND: Spectral Doppler assessment of hepatic veins may provide information on heart function. HYPOTHESIS/OBJECTIVES: To assess the normal pattern of hepatic venous flow using spectral Doppler ultrasound examination; to correlate this information with structural and functional variables of the right ventricle (RV), and to analyze the impact of age, sex, body weight quartiles, heart rate, cardiac rhythm, and systolic arterial pressure on the results in healthy dogs. ANIMALS: Sixty-five healthy dogs. METHODS: Cross-sectional observational study. The direction and maximum velocity of each of the 4 possible components of venous flow were determined from pulsed-wave Doppler examination of the hepatic veins. In addition, structural and functional parameters (TAPSE, longitudinal strain, FAC%, S', Et /At, and E't / A't ) of the RV were evaluated. RESULTS: The same phase patterns for different waves were seen in all animals: A and V were retrograde waves, and S and D were anterograde waves. The velocity of the spectral waves increased with body weight (P < .05) and could be correlated with functional indices of the RV. A significant difference was found when comparing morphometric indices with body weight quartiles (P < .05). In addition, intra-and inter-observer assessments showed low variability. The mean duration of the examinations was 5.2 minutes. CONCLUSIONS AND CLINICAL IMPORTANCE: Hepatic spectral Doppler findings can be correlated with systolic and diastolic indices of the RV and vary with body weight.


Assuntos
Cães/anatomia & histologia , Ventrículos do Coração/diagnóstico por imagem , Veias Hepáticas/diagnóstico por imagem , Fígado/irrigação sanguínea , Ultrassonografia Doppler/veterinária , Função Ventricular/fisiologia , Envelhecimento , Animais , Tamanho Corporal , Estudos Transversais , Feminino , Masculino
12.
Theriogenology ; 107: 180-187, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29169145

RESUMO

To date there have been no studies that describe the ultrasonographic evaluation of kidney development in canine fetuses. The aim of this prospective and longitudinal study was to monitor fetal kidney development with ultrasound and use fetal kidney measurements as a complementary biometric index for estimation of gestational age. Ultrasonographic examinations were performed on 15 clinically healthy pregnant bitches every four days from 30th day of pregnancy, until visualization of the fetal renal pelvis was no longer possible. Four distinct periods of ultrasonographic canine fetal kidney development were defined. Kidney length and renal pelvis distention were measured on longitudinal plane images. The fetal kidney ranged from 0.40 cm to 2.30 cm in length, and diameter of the pelvis ranged from 0.06 cm to 0.17 cm, however by the end of gestation the renal pelvis was no longer dilated and so its diameter could not be measured. Statistical analysis confirmed a relationship between gestational age and fetal kidney growth. Ultrasonographic evaluation of fetal kidney development is simple to perform. There is a strong correlation between gestational age and kidney length, which allowed generation of an equation to estimate delivery date with high sensitivity between 48 and 52 days of pregnancy. Fetal organ development can be considered complete when the renal pelvis is no longer dilated, this finding can assist the ultrasonographer in staging the gestation by prompting examination for fetal intestinal motility which begins at the same gestational age. Measurement of fetal kidney length can be used in conjunction with other methods to estimate gestational age and predict delivery time.


Assuntos
Cães/embriologia , Idade Gestacional , Rim/embriologia , Ultrassonografia Pré-Natal/veterinária , Animais , Cães/crescimento & desenvolvimento , Feminino , Desenvolvimento Fetal , Rim/crescimento & desenvolvimento , Gravidez
13.
Vet Res Commun ; 40(1): 11-9, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26689920

RESUMO

The aim of this study was to develop regression models for correlation of canine fetal heart development with body size to characterize normal development or suggest cardiac anomalies. Twenty clinically healthy pregnant bitches, either brachycephalic and non-brachycephalic, were examined ultrasonographically. Transabdominal fetal echocardiography was conducted every 4 days from the beginning of cardiac chambers differentiation until parturition. Ten cardiac parameters were measured: length, width and diameter of the heart; heart area; left and right ventricular dimensions; left and right atrial dimensions; and aortic and pulmonary artery diameter. Femoral length, biparietal diameter and abdominal cross-sectional area were also recorded. Regression equations were developed for each parameter of fetal body size, and linear and logarithmic models were compared. The model with the highest correlation coefficient was chosen to produce equations to calculate relative dimensions based on the correlations. Only the left-ventricular chamber differed between the two racial groups. Biparietal diameter was the independent parameter that produced the highest correlation coefficient for the most fetal cardiac dimensions, although good correlations were also observed using femoral length and abdominal cross-sectional area. Heart width and heart diameter were used as surrogates of cardiac development, as these measurements showed the best statistical correlation. Quantitative evaluation of fetal cardiac structures can be used to monitor normal and abnormal cardiac development.


Assuntos
Cães/anatomia & histologia , Cães/crescimento & desenvolvimento , Ecocardiografia/veterinária , Coração Fetal/diagnóstico por imagem , Animais , Tamanho Corporal/fisiologia , Cruzamento , Feminino , Coração Fetal/anatomia & histologia , Coração Fetal/crescimento & desenvolvimento , Gravidez , Análise de Regressão
14.
Theriogenology ; 86(7): 1654-61, 2016 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-27543362

RESUMO

The aim of this study was to quantitatively investigate the oscillation of the fetal heart rate (HR) in advance of normal delivery and whether this index could be used to indicate impending delivery. In addition, fetal HR oscillation and umbilical artery resistive index (RI) were correlated to determine if the combination of these parameters provided a more accurate prediction of the time of delivery. Sonographic evaluation was performed in 11 pregnant bitches to evaluate the fetal HR and umbilical artery RI at the following antepartum times: 120 to 96 hours, 72 to 48 hours, 24 to 12 hours, and 12 to 1 hours. Statistical analysis indicated a correlation between the oscillation of fetal HR and the umbilical artery RI. As delivery approached a considerable reduction in the umbilical artery RI was documented and greater oscillations between maximum and minimum HRs occurred. We conclude that the quantitative analysis of fetal HR oscillations may be used to predict the time of delivery in bitches. The combination of fetal HR and umbilical artery RI together may provide more accurate predictions of time of delivery.


Assuntos
Velocidade do Fluxo Sanguíneo , Cães/fisiologia , Feto/fisiologia , Frequência Cardíaca Fetal/fisiologia , Parto/fisiologia , Artérias Umbilicais/fisiologia , Animais , Feminino , Gravidez
15.
Arq Bras Oftalmol ; 79(1): 33-6, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26840164

RESUMO

PURPOSE: The aim of this study was to investigate the effects of prostaglandin analogs on blood flow in the ophthalmic artery of clinically healthy rabbits. METHODS: Fifty-five clinically healthy New Zealand white rabbits were divided into six groups, and the left eyes were treated for four weeks with the preservative benzalkonium chloride (BAK) only or a topical formulation of different prostaglandin analogs (bimatoprost BAK, tafluprost BAK-free, travoprost BAK, travoprost POLYQUAD, and latanoprost BAK). Color Doppler imaging was performed before and after the treatments. The mean values of the peak systolic velocity (PSV) and end diastolic velocity and the resistive index (RI) were calculated. Statistical analysis was performed to compare the differences pre- and post-treatment for each drug and post-treatment among the drugs. RESULTS: The prostaglandin analogs did not affect PSV. Bimatoprost BAK, travoprost POLYQUAD, and latanoprost BAK did not change RI. Tafluprost BAK-free and travoprost BAK therapy resulted in similar reductions in RI. No significant differences pre- and post-treatment were found when BAK was administered alone. CONCLUSION: The prostaglandin analogs tafluprost BAK-free and travoprost BAK improved blood flow in the ophthalmic artery in healthy New Zealand white rabbits, which suggests that these drugs enhance the prevention of the progression the progression of glaucoma.


Assuntos
Compostos de Benzalcônio/farmacologia , Artéria Oftálmica/efeitos dos fármacos , Conservantes Farmacêuticos/farmacologia , Prostaglandinas F Sintéticas/farmacologia , Resistência Vascular/efeitos dos fármacos , Animais , Anti-Hipertensivos/farmacologia , Bimatoprost/farmacologia , Velocidade do Fluxo Sanguíneo/efeitos dos fármacos , Feminino , Glaucoma/prevenção & controle , Latanoprosta , Masculino , Artéria Oftálmica/diagnóstico por imagem , Prostaglandinas F/farmacologia , Coelhos , Distribuição Aleatória , Valores de Referência , Reprodutibilidade dos Testes , Travoprost/farmacologia , Ultrassonografia Doppler em Cores
16.
Theriogenology ; 84(5): 681-6, 2015 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-26025243

RESUMO

Modern high-resolution ultrasound images enable earlier assessment of measures of fetal development, including identification of the bowel. The aim of this study was to describe the ultrasonographic development of fetal bowel and correlate this with gestational age; define whether ultrasonographic visualization of fetal intestinal peristalsis in utero is associated with fetal maturation and determine whether there is a difference in fetal intestinal peristalsis detection time between fetuses delivered by normal delivery and cesarean. A cohort study was conducted in pregnant bitches presented to a veterinary hospital, to assess fetal bowel development. Statistical analysis was used to establish the correlation of the stage of fetal bowel development, as recorded by ultrasound, with outcomes of normal delivery and cesarean section. The study was broken down into three stages: the first stage was a descriptive analysis of fetal bowel development by ultrasound; the second stage compared time (in days) of bowel development between groups (normal delivery vs. cesarean); and the third stage was correlated survival probability for fetuses born on any day after detection of intestinal peristalsis with fetal maturity. All statistical analyses were significant. It is possible to monitor pregnancy progression using ultrasonographic evaluation of bowel development and this can reliably identify the end of fetal organogenesis. However, ultrasonographic detection of bowel segments with visualization of wall layers and associated peristalsis should not be used as the sole indicator for cesarean section planning because it is not possible to determine ultrasonographically whether the bowel is functional (mature).


Assuntos
Cães/embriologia , Desenvolvimento Fetal , Intestinos/embriologia , Animais , Feminino , Idade Gestacional , Gravidez , Ultrassonografia Pré-Natal/veterinária
17.
Anim Reprod Sci ; 154: 105-12, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25596637

RESUMO

The aim of this study was to describe changes in umbilical artery blood flow in the later stages of canine pregnancy. Seventeen pregnant bitches were examined sonographically to evaluate umbilical artery blood flow at the following antepartum times: 120-96, 96-72, 72-48, 48-24, 24-12, 12-6 and 6-1h. The peak systolic velocity and end diastolic velocity were measured to calculate the resistive index (RI). Bitches were classified into two groups according to delivery method: normal delivery (Group 1, n=11) and Cesarean section, due to fetal distress, (Group 2, n=6). During the study, the RI of the umbilical artery in bitches in Group 1 significantly declined in the time periods 72-48, 24-12, 12-6 and 6-1h before delivery when compared to the reference RI (120-96h antepartum period), with values ​​below 0.7 in the 12-6 and 6-1h periods. In Group 2, the RI decreased significantly in the antepartum periods 96-72, 72-48, 48-24h with respect to the period 120-96h, and increased in the periods from 24-12, 12-6 and 6-1h (being significantly higher in this last period) until the time of Cesarean section. Therefore monitoring of changes in umbilical artery RI in the pre-partum period may provide information about time of delivery in bitches and also assist in the diagnosis of possible dystocia and fetal distress.


Assuntos
Velocidade do Fluxo Sanguíneo , Cães/embriologia , Ultrassonografia Doppler em Cores , Artérias Umbilicais/diagnóstico por imagem , Artérias Umbilicais/fisiologia , Animais , Cães/fisiologia , Feminino , Gravidez
18.
Rev. bras. ciênc. vet ; 27(1): 19-21, jan./mar. 2020. il.
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1379234

RESUMO

As one of the most frequent reasons for presentation at the orthopedic services in veterinary practice, long bone fractures need bone continuity for consolidation to take place. This case report has demonstrates the use of a morcellized fragment of bone as a bone graft in a femoral fracture with major bone loss. A mixed-breed adult cat with a segmental femoral fracture with a large longitudinal fissure in the central bone fragment was submitted to an interlocking nail osteosynthesis. During the procedure a fracture occurred along the fissure resulting in two bone fragments with significant bone loss. Fragments were morcellized and applied over the defect to act as a bone graft. By the 15th day after the surgery, the cat had a normal gait and showed no pain response, and bone consolidation occurred after 7 months. Once harvesting of humeral, femoral and tibial bone grafts can be frustrating in cats, resulting in just small amounts of bone, the morcellation of the central fragments was vital to provide sufficient graft to cover the big defect in the femoral shaft. The authors suggest that autologous fresh morcellized cortical bone fragments can be an adjunct to the treatment of comminuted fractures in cats, as an alternative to more traditional repairs of comminuted fracture.


Fraturas de ossos longos necessitam de continuidade óssea para que a consolidação ocorra. Este relato de caso tem como objetivo demonstrar o uso de um fragmento ósseo morcelizado com a função de enxerto ósseo em uma fratura de fêmur com presença de uma grande falha óssea entre os fragmentos. Um gato adulto, sem raça definida, com uma fratura múltipla em fêmur com presença de uma fissura longitudinal no fragmento central foi submetido à osteossíntese com uso de haste bloqueada. Durante o processo, ocorreu uma fragmentação a partir da fissura, o que resultou na presença de dois fragmentos ósseos com uma grande porção de perda óssea entre os dois. Os fragmentos ósseos restantes do fragmento central foram morcelizados e aplicados no defeito para atuar com enxerto ósseo. Quinze dias após a cirurgia o paciente apresentou apoio normal e ausência de dor, e consolidação óssea ocorreu em 7 meses pós operatórios. Uma vez que a coleta de enxerto nos gatos resulta em pouca quantidade de osso, a morcelização do fragmento central foi vital para promover enxerto suficiente para cobrir o defeito ósseo. Os autores sugerem que o uso de enxerto cortical autólogo fresco morcelizado pode ser um adjuvante no tratamento de fraturas cominutivas em gatos, como um tratamento alternativo à terapia convencional.


Assuntos
Animais , Gatos , Regeneração Óssea , Gatos/cirurgia , Transplante Ósseo/veterinária , Fraturas do Fêmur/veterinária , Fêmur/cirurgia , Fixação Interna de Fraturas/veterinária
19.
Rev. bras. ciênc. vet ; 27(1): 19-21, jan./mar. 2020. ilus
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1491660

RESUMO

As one of the most frequent reasons for presentation at the orthopedic services in veterinary practice, long bone fractures need bone continuity for consolidation to take place. This case report has demonstrates the use of a morcellized fragment of bone as a bone graft in a femoral fracture with major bone loss. A mixed-breed adult cat with a segmental femoral fracture with a large longitudinal fissure in the central bone fragment was submitted to an interlocking nail osteosynthesis. During the procedure a fracture occurred along the fissure resulting in two bone fragments with significant bone loss. Fragments were morcellized and applied over the defect to act as a bone graft. By the 15th day after the surgery, the cat had a normal gait and showed no pain response, and bone consolidation occurred after 7 months. Once harvesting of humeral, femoral and tibial bone grafts can be frustrating in cats, resulting in just small amounts of bone, the morcellation of the central fragments was vital to provide sufficient graft to cover the big defect in the femoral shaft. The authors suggest that autologous fresh morcellized cortical bone fragments can be an adjunct to the treatment of comminuted fractures in cats, as an alternative to more traditional repairs of comminuted fracture.


Fraturas de ossos longos necessitam de continuidade óssea para que a consolidação ocorra. Este relato de caso tem como objetivo demonstrar o uso de um fragmento ósseo morcelizado com a função de enxerto ósseo em uma fratura de fêmur com presença de uma grande falha óssea entre os fragmentos. Um gato adulto, sem raça definida, com uma fratura múltipla em fêmur com presença de uma fissura longitudinal no fragmento central foi submetido à osteossíntese com uso de haste bloqueada. Durante o processo, ocorreu uma fragmentação a partir da fissura, o que resultou na presença de dois fragmentos ósseos com uma grande porção de perda óssea entre os dois. Os fragmentos ósseos restantes do fragmento central foram morcelizados e aplicados no defeito para atuar com enxerto ósseo. Quinze dias após a cirurgia o paciente apresentou apoio normal e ausência de dor, e consolidação óssea ocorreu em 7 meses pós operatórios. Uma vez que a coleta de enxerto nos gatos resulta em pouca quantidade de osso, a morcelização do fragmento central foi vital para promover enxerto suficiente para cobrir o defeito ósseo. Os autores sugerem que o uso de enxerto cortical autólogo fresco morcelizado pode ser um adjuvante no tratamento de fraturas cominutivas em gatos, como um tratamento alternativo à terapia convencional.


Assuntos
Animais , Adulto , Gatos , Fraturas do Fêmur/reabilitação , Fraturas do Fêmur/veterinária , Transplante Ósseo/veterinária
20.
Pesqui. vet. bras ; Pesqui. vet. bras;38(4): 696-702, abr. 2018. tab, graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-955374

RESUMO

Fungal pneumonia has been a differential diagnosis in dogs and cats with pulmonary clinical signs, posting also a public health risk to respective owners. Since a common-source environmental exposure may result in infection, dogs and cats may also act as sentinels for both animal and human disease. Accordingly, the present study has aimed to evaluate the occurrence of fungal pneumonia in dogs and cats with pulmonary clinical signs from May 2013 to February 2015 in southern Brazil. Thoracic radiographs, blood work and non-bronchoscopic Bronchoalveolar Lavage (BAL), followed by cytology and microbiologic analysis were performed in all animals. One dog was positive in the BAL fluid culture for a pathogenic fungus (Cryptococcus neoformans) and another dog to an opportunistic fungus (Candida parapsilosis). Both dogs have presented cough as the prior clinical sign and showed thoracic radiographic changes. In conclusion, the occurrence of fungal pneumonia in southern Brazil in dogs and cats through of this study was relatively low. The BAL fluid culture may allow diagnosis of fungal pneumonia caused by opportunistic or pathogenic fungi and this diagnosis should be a concern in dogs and cats with pulmonary clinical signs.(AU)


Pneumonia fúngica tem sido um diagnóstico diferencial em cães e gatos com sinais clínicos pulmonares, sendo também um risco de saúde pública para seus respectivos proprietários. Uma vez que uma fonte comum de exposição ambiental pode resultar em infecção, cães e gatos podem agir como sentinelas da doença para ambos, pessoas e animais. Assim, o presente estudo teve como objetivo avaliar a ocorrência de pneumonia fúngica em cães e gatos com sinais clínicos pulmonares, de maio de 2013 a fevereiro 2015 no sul do Brasil. Radiografias torácicas, exame de sangue e lavado broncoalveolar (LBA) não broncoscópico seguido de análise citológica e microbiológica foram realizados em todos os animais. Um cão foi positivo na cultura do fluido do LBA para um fungo patogênico (Cryptococcus neoformans) e outro cão para um fungo oportunista (Candida parapsilosis). Ambos os cães apresentaram tosse como sinal clínico principal e alterações radiológicas torácicas. Em conclusão, a ocorrência de pneumonia fúngica no sul do Brasil em cães e gatos por meio deste estudo foi relativamente baixa. A cultura do LBA pode possibilitar o diagnóstico de pneumonia fúngica causada por fungos oportunistas ou patogênicos e este diagnóstico diferencial deve ser uma preocupação em cães e gatos com sinais clínicos pulmonares.(AU)


Assuntos
Animais , Gatos , Cães , Gatos/microbiologia , Lavagem Broncoalveolar , Cães/microbiologia , Criptococose
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