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1.
J Small Anim Pract ; 62(3): 178-186, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33496045

RESUMO

OBJECTIVES: To assess the accuracy of the lung ultrasound protocol Vet BLUE, using thoracic CT as the reference standard, for the detection of thoracic pathology in dogs and cats. MATERIALS AND METHODS: Animals that had thoracic ultrasound and thoracic CT were prospectively recruited between May 2017 and September 2018. The Vet BLUE protocol was performed on animals at the time of admission by veterinarians with basic training in emergency ultrasound. A board-certified radiologist, blinded to the Vet BLUE findings, reviewed the CT images. RESULTS: CT was abnormal in 64.5% (20/31) animals. The number of CT sites positive for alveolar-interstitial syndrome was 24.2% (60/248). When using CT as the reference standard, detection of ≥3 B lines with thoracic ultrasound had a sensitivity of 18.33% and specificity of 98.4% for detection of site specific alveolar-interstitial syndrome. The sensitivity of Vet BLUE to detect alveolar-interstitial syndrome increased to 56.9% when including the presence of any B line as abnormal. Overall accuracy for detection of alveolar-interstitial syndrome based on these two criteria was 79% and 73%, respectively. Vet BLUE correctly identified consolidation in 58.3% (14/24) sites, pleural effusion in 66.6% (2/3) cases, pneumothorax in 33.3% (1/3) cases and intrathoracic mass in 25% (1/4) cases. CLINICAL SIGNIFICANCE: The Vet BLUE protocol is a useful technique to detect alveolar-interstitial syndrome and other thoracic pathology but should not be used as a sole imaging method. Detection of ≥3 B lines is highly suggestive of alveolar-interstitial syndrome and warrants further diagnostics.


Assuntos
Doenças do Gato , Doenças do Cão , Pneumotórax , Médicos Veterinários , Animais , Doenças do Gato/diagnóstico por imagem , Gatos , Doenças do Cão/diagnóstico por imagem , Cães , Humanos , Pulmão/diagnóstico por imagem , Pneumotórax/diagnóstico por imagem , Pneumotórax/veterinária , Ultrassonografia/veterinária
2.
J Small Anim Pract ; 62(2): 114-122, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33403667

RESUMO

OBJECTIVES: Cytological biopsies are an integral additional test to an abdominal ultrasound when a lesion is identified, but there is little published on factors that that may impact achieving a clinically useful sample of gastrointestinal lesions obtained by ultrasound-guided fine-needle cytologic biopsy. This retrospective, descriptive study aimed to assess factors that may influence the clinical usefulness of submitted cytological samples collected from gastrointestinal lesions by ultrasound-guided percutaneous fine-needle cytologic biopsy. MATERIAL AND METHODS: Gastrointestinal cytological samples obtained from 25 dogs and 19 cats over 2.5 years were reviewed and determined as clinically useful or clinically useless as per the cytology report. Variables dependent on the ultrasound exam that were used in the analysis included lesion location, lesion thickness, loss of gastrointestinal layering, and the number of slides submitted. RESULTS: Thirty (30/44) of the submitted cytological samples were considered clinically useful. Factors associated with achieving a clinically useful sample in univariable models included the number of slides submitted and the thickness of the lesion. However, these two variables appear inter-related, as a weak correlation existed between them. Where histologic biopsies were obtained, a clinically useful sample had a partial or complete agreement with histology in three of 12 and eight of 12 cases, respectively. CLINICAL SIGNIFICANCE: Ultrasound-guided fine-needle cytological biopsies of gastrointestinal masses provided a clinically useful sample in two-third of the cases, especially if more slides were provided to the cytologist and thicker lesions were sampled.


Assuntos
Doenças do Gato , Doenças do Cão , Animais , Biópsia por Agulha Fina/veterinária , Doenças do Gato/diagnóstico por imagem , Gatos , Doenças do Cão/diagnóstico por imagem , Cães , Estudos Retrospectivos , Ultrassonografia de Intervenção/veterinária
3.
J Vet Dent ; 37(2): 66-70, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32875972

RESUMO

Buccal bone expansion (BBE) refers to bulbous enlargement of the periodontium in domestic cats. The origin of BBE is unknown, and some of its epidemiological, clinical, and radiographic features have not been fully characterized. The purpose of this study was to determine whether specific demographic characteristics are associated with BBE in cats; and whether BBE is associated with other relevant radiographic findings. Pertinent data were collected from archived dental radiographs and electronic medical records of 97 client-owned cats. Results showed that BBE is common in cats presented for evaluation and treatment of dental disease; that breed, sex, and age are not associated with BBE; that BBE is not associated with a pattern of horizontal alveolar bone loss/extrusion or tooth resorption; that a pattern of vertical alveolar bone loss is a typical feature of BBE; and that BBE represents a common cause of canine tooth loss in cats.


Assuntos
Perda do Osso Alveolar , Doenças do Gato , Reabsorção de Dente , Perda do Osso Alveolar/veterinária , Animais , Doenças do Gato/diagnóstico por imagem , Doenças do Gato/epidemiologia , Gatos , Estudos Transversais , Prevalência , Encaminhamento e Consulta , Reabsorção de Dente/diagnóstico por imagem , Reabsorção de Dente/epidemiologia , Reabsorção de Dente/veterinária
4.
Vet Radiol Ultrasound ; 61(4): 399-408, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32350994

RESUMO

Abdominal radiographs are commonly used in dogs and cats that present with gastrointestinal signs. When initial abdominal radiographs are equivocal for the presence or absence of gastrointestinal mechanical obstruction, follow-up abdominal radiographs may be recommended. Based on our review of the literature, no published study has been performed to evaluate the clinical utility of serial abdominal radiographs in such cases. The purpose of this study is to determine whether follow-up abdominal radiographs increase diagnostic accuracy for mechanical obstruction. A prospective cohort study was performed on client-owned dogs and cats with clinical concern for gastrointestinal mechanical obstruction and initial abdominal radiographs inconclusive for the presence of obstruction. Follow-up abdominal radiographs were performed between 7 and 28 h of the initial radiographs; an abdominal ultrasound performed within 3 h of the follow-up study served as the gold standard. A total of 57 patients (40 dogs and 17 cats) were recruited; 19 of 57 cases (11 dogs; 8 cats) were mechanically obstructed, all with nonradiopaque foreign bodies. Four blinded reviewers (2 radiologists, 1 radiology resident, 1 criticalist) separately assessed the initial and the combined initial/follow-up radiographic studies for diagnosis of mechanical obstruction; for each observer, there was no significant change in accuracy (P = .058-.87) for the diagnosis of mechanical obstruction. Given the lack of significant increase in diagnostic accuracy using follow-up radiographs in cases of occult gastrointestinal mechanical obstruction, other diagnostic options (eg, abdominal ultrasonography) could be considered when survey abdominal radiographs are inconclusive for the diagnosis of mechanical obstruction in dogs and cats.


Assuntos
Doenças do Gato/diagnóstico por imagem , Doenças do Cão/diagnóstico por imagem , Corpos Estranhos/veterinária , Obstrução Intestinal/veterinária , Ultrassonografia/veterinária , Animais , Gatos , Estudos de Coortes , Cães , Seguimentos , Corpos Estranhos/diagnóstico por imagem , Obstrução Intestinal/diagnóstico por imagem , Estudos Prospectivos , Radiografia , Radiografia Abdominal/veterinária
5.
Vet Radiol Ultrasound ; 61(4): 385-393, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32400045

RESUMO

The ability to differentiate thoracic masses of mediastinal and pulmonary origins is often confounded by their complex spatial relationship. The objectives of this retrospective, observational cross-sectional study were to assess radiographic differentiation of mediastinal versus pulmonary masses, and to determine if there are any correlations with specific radiographic findings. Thoracic radiographs of 75 dogs and cats with mediastinal and/or pulmonary masses identified on CT were reviewed. Radiographic studies were anonymized, randomized, and reviewed twice by three reviewers. Reviewers categorized the origin of each mass(es) as mediastinal, pulmonary, or both. On the second review, the presence or absence of 21 different radiographic findings was recorded for each mass. Agreement between the radiographic and CT categorization of mass origin, as well as inter- and intraobserver agreement, was calculated. Overall agreement between radiographs and CT was moderate for both mediastinal (68.6%) and pulmonary masses (63%). Overall, interobserver agreement was moderate (κ = 0.50-0.74), with moderate to strong intraobserver agreement (κ = 0.58-0.93). Masses within the mediastinum were significantly more likely to displace other mediastinal structures. Alternatively, masses lateral to midline and in the caudal thorax were found to be significantly positively correlated with a pulmonary origin. The results of this study highlight the limitations of radiography for differentiation of mediastinal and pulmonary masses, with mass location and displacement of other mediastinal structures potentially useful for radiographic findings that may help improve accuracy.


Assuntos
Doenças do Gato/diagnóstico por imagem , Doenças do Cão/diagnóstico por imagem , Pneumopatias/veterinária , Doenças do Mediastino/veterinária , Neoplasias/veterinária , Animais , Gatos , Estudos Transversais , Cães , Feminino , Humanos , Pneumopatias/diagnóstico por imagem , Doenças do Mediastino/diagnóstico por imagem , Mediastino , Neoplasias/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/veterinária
6.
Am J Vet Res ; 81(4): 309-316, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32228264

RESUMO

OBJECTIVE: To evaluate agreement in results obtained with an MRI-based grading scheme and a macroscopic observation-based grading scheme when used to assess intervertebral disk (IVD) degeneration in cats. SAMPLE: 241 MRI and 143 macroscopic images of singular IVDs in 44 client-owned cats (40 cadaveric and 4 live). PROCEDURES: Singular images of IVDs were obtained of live cats admitted for treatment of suspected neurologic disease (MRI images of IVDs) and of cadavers of cats euthanized for reasons unrelated to spinal disease (MRI and macroscopic images of IVDs) at the Small Animal Hospital, Vetsuisse Faculty, Zurich, Switzerland, between January 12, 2015, and October 19, 2015. The IVD images were randomized and evaluated twice by 4 observers for each grading scheme. Inter- and intraobserver reliability for the grading schemes was assessed with Cohen weighted κ analysis. Agreement and correlation between results obtained with the 2 grading schemes were determined with Cohen weighted κ and Spearman correlation coefficient (ρ) analyses, respectively. RESULTS: Inter- and intraobserver agreement between results was substantial to almost perfect (mean weighted κ, 0.66 to 0.83 and 0.71 to 0.86, respectively) for the MRI-based grading scheme and moderate to substantial (mean weighted κ, 0.42 to 0.80 and 0.65 to 0.79, respectively) for the macroscopic observation-based grading scheme. Between the 2 grading schemes, agreement in results was moderate (mean ± SE weighted κ, 0.56 ± 0.05), and the correlation was strong (ρ = 0.73). CONCLUSIONS AND CLINICAL RELEVANCE: Results indicated that the MRI-based and macroscopic observation-based grading schemes used in the present study could be used reliably for classifying IVD degeneration in cats.


Assuntos
Doenças do Gato , Degeneração do Disco Intervertebral/veterinária , Disco Intervertebral , Animais , Cadáver , Doenças do Gato/diagnóstico por imagem , Gatos , Hospitais Veterinários , Degeneração do Disco Intervertebral/diagnóstico por imagem , Imagem por Ressonância Magnética , Variações Dependentes do Observador , Reprodutibilidade dos Testes
7.
J Vet Cardiol ; 28: 48-54, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32339993

RESUMO

A seven-year-old, spayed female, domestic longhair cat was referred for management of a sudden aortic thromboembolism (ATE). Echocardiography showed hypertrophic cardiomyopathy with severe left atrial enlargement. Ultrasonography of the abdominal aorta confirmed a large thrombus at the level of the aortic trifurcation, involving both iliac arteries. Considering the recent onset and bilateral involvement of the iliac arteries, the cat underwent emergent surgical embolectomy (SE) of the aortoiliac embolus. A standard caudal celiotomy was performed and the abdominal aorta was identified. Vessel loops with tourniquets were placed around the abdominal aorta proximal to the thrombus and on both iliac arteries distal to the thrombus. A full-thickness incision was made in the ventral surface of the aorta. The aortic thromboembolus was removed. The trifurcation was subsequently flushed with sterile saline. The SE resulted in a good outcome, with both clinical and ultrasound signs of complete reperfusion of the rear limbs within a few hours. Long-term treatment included antiplatelet drugs, furosemide and benazepril. Eighteen months after surgery, the cat was free of clinical signs, without recurrence of ATE or congestive heart failure. Based on the present case, SE could be considered as a feasible alternative to traditional conservative treatment in cats with a very recent onset of bilateral ATE.


Assuntos
Doenças da Aorta/veterinária , Doenças do Gato/cirurgia , Embolectomia/veterinária , Tromboembolia/veterinária , Animais , Doenças da Aorta/diagnóstico por imagem , Doenças da Aorta/cirurgia , Cardiomiopatia Hipertrófica/diagnóstico por imagem , Cardiomiopatia Hipertrófica/veterinária , Doenças do Gato/diagnóstico por imagem , Gatos , Ecocardiografia/veterinária , Feminino , Tromboembolia/diagnóstico por imagem , Tromboembolia/cirurgia , Resultado do Tratamento , Ultrassonografia/veterinária
8.
J Vet Cardiol ; 28: 55-61, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32339994

RESUMO

A left ventricular accessory chamber is a complex and uncommon phenotype consisting in a subdivision of the left ventricle by a thick-walled muscle bundle or septum into two cavities. Multiple aetiologies such as congenital double-chambered left ventricle and acquired endomyocardial form of restrictive cardiomyopathy have been reported. The endomyocardial form of restrictive cardiomyopathy, owing to its structural heterogeneity, can present a similar phenotype to the congenital abnormality with intraventricular lesions bridging the ventricular septum and left ventricular free wall. Conventional echocardiography is the first-line, accepted, non-invasive imaging modality to investigate underlying cardiac disease but presents limitations for the overall assessment of myocardial tissue. This report describes the use of cardiac magnetic resonance imaging as an additional imaging modality to provide multiplanar morphological, structural, and functional information of the myocardium. In the presented images, hyperintensities on cardiac magnetic resonance imaging within the myocardium along with hyperechoic and heterogeneous myocardial tissue on echocardiography and elevated troponin I were suggestive of a presumptive acquired pathological process such as feline endomyocarditis-left ventricular endomyocardial fibrosis complex, rather than a sole congenital anomaly. Although the diagnosis was not confirmed, this case exemplifies the advantages of using complementary multimodality imaging in a cat presented with a left ventricular accessory chamber.


Assuntos
Cardiomiopatias/veterinária , Doenças do Gato/diagnóstico por imagem , Fibrose Endomiocárdica/veterinária , Ventrículos do Coração/patologia , Animais , Cardiomiopatias/diagnóstico por imagem , Gatos , Ecocardiografia/veterinária , Fibrose Endomiocárdica/diagnóstico por imagem , Ventrículos do Coração/diagnóstico por imagem , Imagem por Ressonância Magnética/veterinária , Masculino , Miocárdio/patologia
9.
Top Companion Anim Med ; 38: 100369, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32115079

RESUMO

The objective of this study was to collect preliminary data about tooth resorption (TR) from cats treated at the Odontology Service (September 2016-June 2018), part of a University Veterinary Hospital in Spain, with specific emphasis on TR distribution per tooth. Diagnosis was based on visual/tactile inspection and intraoral dental radiographs. This cross-sectional study was carried out on 59 adult cats (27 females, 32 males). TR occurred in 39/59 cats (66.1%; 95% CI: 54.0%-78.2%). The median number of lesioned teeth per TR-affected animal was 3. A highly significant but weak correlation was found for age and number of TR-affected teeth per individual (Spearman´s correlation ρ = 0.381, P = .003, power = 0.853; N = 59). No TR cases were detected in incisors (0/708, 0%) but TR occurred in canines (21/236, 8.9%; 95% CI: 5.4%-12.4%), premolars (78/590, 13.2%; 95% CI: 10.5%-15.9%), and molars (33/236, 14%; 95% CI: 9.7%-18.3%). A significant age influence on TR was found. The greatest TR occurrence corresponded to 307 (21/59; 35.6%; 95% CI: 23.4%-47.8%) followed by 409 (17/59; 28.8%; 95% CI: 17.2%-40.3%), 407 (16/59; 27.1%; 95% CI: 15.7%-38.4%), and 309 (16/59; 27.1%; 95% CI: 15.7%-38.4%). These teeth would be considered as TR-sentinels in the studied population. These findings are relevant for veterinarians working in dental clinics, where the TR prevalence may be high especially in older cats.


Assuntos
Doenças do Gato/patologia , Reabsorção de Dente/veterinária , Fatores Etários , Animais , Doenças do Gato/diagnóstico por imagem , Gatos , Estudos Transversais , Feminino , Masculino , Radiografia Dentária/veterinária , Espanha , Reabsorção de Dente/diagnóstico por imagem , Reabsorção de Dente/patologia
11.
Open Vet J ; 9(4): 331-334, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-32042655

RESUMO

Background: Although bone tumors are common pathologies in companion animals, limited reports describe nasal osteosarcoma (OSA) in cats. Case description: A case of nasal OSA in a local Libyan cat was admitted to the Veterinary Teaching Hospital at the Faculty of Veterinary Medicine, University of Tripoli-Libya, with nasal swelling and discharges and facial deformity. The radiological findings revealed nasal osteolysis with the absence of evidence of lung metastasis. In addition, fungal growth was not identified in microbiological culture. Furthermore, the pathological examination has grossly revealed a destructed nasal bone due to the presence of a tumor mass, with a mucohemorrhagic nasal discharge and absence of metastasis. OSA was confirmed histopathologically. Conclusion: This report presents the clinical, radiological, and pathological findings of a primary nasal OSA in a Libyan cat with no tumor metastasis to other body organs.


Assuntos
Neoplasias Ósseas/veterinária , Doenças do Gato/patologia , Neoplasias Nasais/veterinária , Osteossarcoma/veterinária , Animais , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/patologia , Doenças do Gato/diagnóstico por imagem , Gatos , Feminino , Neoplasias Nasais/diagnóstico por imagem , Neoplasias Nasais/patologia , Osteossarcoma/diagnóstico por imagem , Osteossarcoma/patologia
12.
J Vet Cardiol ; 27: 23-33, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31931390

RESUMO

INTRODUCTION/OBJECTIVES: Recognition of congestive heart failure (CHF) in dyspnoeic cats is crucial for correct intervention. The pulmonary vein (PV) to pulmonary artery (PA) ratio (PV/PA) has been proposed as an index that might help discriminate dogs suffering from CHF but has never been studied in cats. We sought to determine reference intervals for various PV and PA variables in healthy cats. We then examined these variables in cats with subclinical and clinical cardiomyopathies to determine their diagnostic utility in identifying CHF. ANIMALS, MATERIALS AND METHODS: We took a sample of 114 cats: 51 healthy cats, 32 subclinical cardiomyopathy affected cats and 31 cardiomyopathic cats with CHF. PV and PA were measured at the minimal and maximal diameters using M-mode images obtained from a modified right parasternal long axis view. The aorta (Ao) and left atrium were measured using two-dimensional imaging employing the right parasternal short axis view. RESULTS: median PVmin/PAmin value in healthy cats was approximately 0.51 and the PVmax/PAmax value was 0.67. The median distensibility value of the vessels was 23% for ΔPA and 41% for ΔPV. Cats with CHF had higher PVmin/PAmin, PVmax/PAmax, PVmin/Ao, PVmax/Ao values and a smaller ΔPV value compared to subclinical and healthy cats (p < 0.0001). When evaluating the diagnostic performance of these variables (in cardiomyopathic cats), PVmin/PAmin and PVmin/Ao values had higher accuracy compared to the LA:Ao value when identifying cats with CHF. CONCLUSIONS: Our study provides reference values for PV and PA variables in cats. Moreover, PV/PA variables were better factors than LA:Ao for discriminating cardiomyopathic cats with and without CHF.


Assuntos
Cardiomiopatias/veterinária , Doenças do Gato/diagnóstico por imagem , Artéria Pulmonar/diagnóstico por imagem , Veias Pulmonares/diagnóstico por imagem , Animais , Cardiomiopatias/diagnóstico por imagem , Doenças do Gato/patologia , Gatos , Dispneia/veterinária , Ecocardiografia/veterinária , Feminino , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/veterinária , Masculino
13.
Vet Radiol Ultrasound ; 61(3): 255-260, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31895973

RESUMO

Feline pancreatitis is a challenge to diagnose and no previously published study has described the CT characteristics of the pancreatic duct (PD) in cats. The current prospective analytical study was performed to identify and describe the CT characteristics of the PD in normal cats and to compare that to those cats with an elevated feline pancreatic lipase immunoreactivity (fPLI). Contrast-enhanced CT was performed in 16 normal cats and 13 cats with an elevated fPLI. Two ACVR-certified radiologists blinded to the fPLI status assessed whether or not the PD could be identified, contrast phase during which the PD was most conspicuous, and PD shape in the body, right and left lobes. A second-year radiology resident blinded to the fPLI status measured maximum PD diameter and PD:parenchyma. The PD was identified in 84 of 87 pancreatic segments, which was most conspicuous in the portal phase in 28 of 29 cats. The PD shape was tubular (48/84), tapered (34/84), or beaded (2/84) with no significant difference (P = 1.0 to .1615) between groups. Mean maximal PD diameters of normal cats were 1.5-1.7 mm, which was significantly larger in the body of the pancreas in cats with an elevated fPLI (2.4 mm, P = .0313). Mean PD:parenchyma was not significantly different between groups (P = .2001 to .949). In conclusion, the feline PD can be consistently identified on CT, for which the portal phase is preferred. Cats with an elevated fPLI are more likely to exhibit dilation of the PD in the body of the pancreas on CT.


Assuntos
Doenças do Gato/diagnóstico por imagem , Lipase/metabolismo , Ductos Pancreáticos/diagnóstico por imagem , Pancreatite/veterinária , Animais , Estudos de Casos e Controles , Doenças do Gato/patologia , Gatos , Masculino , Ductos Pancreáticos/metabolismo , Pancreatite/diagnóstico por imagem , Pancreatite/patologia , Tomografia por Raios X/veterinária , Tomografia Computadorizada por Raios X/veterinária
14.
J Vet Intern Med ; 34(1): 29-34, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31816124

RESUMO

BACKGROUND: Steroids administered PO and intramuscularly are associated with development of congestive heart failure in cats without prior signs of heart disease, but criteria to identify cats at increased risk for steroid-induced heart failure are not established. HYPOTHESIS: Cats administered steroids PO for 5 to 7 days will develop increased N terminal pro-B-type natriuretic peptide (NT-proBNP) concentration and heart size. ANIMALS: Ten client-owned cats. METHODS: Observational cohort study. Cats intended to initiate at least a 5-day course of steroids administered PO were consecutively recruited. RESULTS: Steroids administered PO to cats are not associated with differences in absolute concentration of NT-proBNP (baseline: 49 pmol/L [range, 24-1013]; after steroids: 85 pmol/L [range, 46-1367]; P = .23), blood pressure (baseline: 145 mm Hg [range, 116-163]; after steroids: 145 mm Hg [range, 115-230]; P = .94), nor blood glucose concentration (baseline: 125 mg/dL [range, 92-254]; after steroids: 144 mg/dL [range, 114-307]; P = .43), but are associated with increased median left atrial dimension (baseline: 1.26 cm [range, 0.96-2.03; after steroids: 1.38 [range, 1.03-2.20]; P = .02) and mean left ventricular internal diameter (baseline: 1.55 cm [standard deviation-SD, 0.28; after steroids: 1.72 cm [SD, 0.28]; P = .03). Six of 10 (60%) cats had a percentile change in NT-proBNP >60% after steroids, and 3 of 8 (38%) cats with baseline BNP <100 pmol/L had an NT-proBNP >100 pmol/L after steroids. CONCLUSIONS AND CLINICAL IMPORTANCE: Increased heart size and percentage change in individual NT-proBNP concentration suggests plasma volume expansion secondary to steroids administered PO in cats. A serial assessment of an individual cat's change in NT-proBNP might be clinically useful for judging risk for volume expansion.


Assuntos
Budesonida/efeitos adversos , Doenças do Gato/induzido quimicamente , Ecocardiografia/veterinária , Insuficiência Cardíaca/veterinária , Prednisolona/efeitos adversos , Administração Oral , Animais , Budesonida/administração & dosagem , Budesonida/uso terapêutico , Doenças do Gato/diagnóstico por imagem , Gatos , Esquema de Medicação , Insuficiência Cardíaca/induzido quimicamente , Insuficiência Cardíaca/diagnóstico por imagem , Prednisolona/administração & dosagem , Prednisolona/uso terapêutico
15.
Vet Rec ; 186(16): 533, 2020 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-31748423

RESUMO

OBJECTIVES: The medullary rim sign (MRS) is an ultrasonographic (US) feature identified in normal and diseased feline kidneys. The prevalence and potential clinical significance of the MRS in a referral hospital cat population was investigated. METHODS: Retrospective case-control study. US images from 661 cats were reviewed. Cats with an MRS were identified and compared with equal number of time-matched control cats. Medical data and MRS features, including thickness, intensity and symmetry, were collected. Associations between independent variables and the MRS were examined with conditional and unconditional logistic regression, with initial univariable, and subsequent multivariable analysis. RESULTS: Of the 661 reviewed cats, 243 (36.8 per cent) showed a variation of the MRS. A thin MRS (133 cats) was not associated with azotaemic renal disease (P=0.87). A thick MRS (110 cats) was associated with azotaemic renal disease (P=0.001). There was an association between the presence of MRS and a final diagnosis of feline infectious peritonitis (FIP) (P=0.028). CONCLUSIONS: The MRS is a common finding in cats. In this cat population, a thick MRS was associated with azotaemic renal disease, while a thin MRS was not. In cases with a clinical suspicion of FIP, the MRS may be related to the underlying disease process and not be an incidental finding.


Assuntos
Doenças do Gato/diagnóstico por imagem , Nefropatias/veterinária , Medula Renal/diagnóstico por imagem , Animais , Estudos de Casos e Controles , Doenças do Gato/epidemiologia , Gatos , Peritonite Infecciosa Felina/diagnóstico , Feminino , Nefropatias/diagnóstico por imagem , Nefropatias/epidemiologia , Masculino , Prevalência , Estudos Retrospectivos , Ultrassonografia/veterinária
16.
Vet Radiol Ultrasound ; 61(2): 147-156, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31825152

RESUMO

Hypoattenuating ocular lenses on CT have been described with cataract formation in humans, however published studies are currently lacking regarding this finding in veterinary patients. The purpose of this retrospective and prospective study was to describe the varying CT appearances of the ocular lens in vivo, and investigate the causes for CT density variations in a population of cats and dogs. A total of 102 canine and feline patients with CT of the head acquired at the authors' hospital between May 2011 and March 2019 were included. A bilateral hypoattenuating halo surrounding an isoattenuating to mildly hypoattenuating core was described in the ocular lens center of every cat in which a Philips brand proprietary image construction filter was used. A similar but more varied hypoattenuating region was noted in the lenses of 45.8% of dogs where the same filter was applied, as well as 43.8% of dogs with a second, similar filter. Ophthalmic examination of three live cats and one dog with hypoattenuating lenses demonstrated normal lens translucency, excluding the presence of cataract. The effect of different proprietary filters on lens appearance was also described in three fresh cadavers with normal lenses identified on ophthalmic, macroscopic, and microscopic examination. Etiology of the hypoattenuating areas within the ocular lens was not conclusively determined. Recognition that such a variant may be seen in the absence of cataract is important, in order to prevent misdiagnosis.


Assuntos
Doenças do Gato/diagnóstico por imagem , Catarata/veterinária , Doenças do Cão/diagnóstico por imagem , Cristalino/anatomia & histologia , Tomografia Computadorizada por Raios X/veterinária , Animais , Cadáver , Catarata/diagnóstico por imagem , Gatos , Cães , Humanos , Estudos Prospectivos , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos
17.
Vet Rec ; 186(10): 320, 2020 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-31582574

RESUMO

BACKGROUND: Contrast-enhanced ultrasonography (CEUS) features of primary hepatobiliary neoplasms have been reported in dogs but no information is available in cats. METHODS: Qualitative and quantitative features of bile duct adenomas (BDAs, n=20), bile duct carcinomas (BDCs, n=16), and hepatocellular carcinomas (HCCs, n=8) are described in 44 cats. RESULTS: There was an overlap in CEUS qualitative features between different histotypes, both in wash-in and wash-out phases. Distinction between different neoplasms based only on the CEUS qualitative features was not possible. At peak of enhancement, the BDAs, BDCs and HCCs showed a large range of echogenicities, from hypoenhancement to hyperenhancement, in comparison to the liver parenchyma. Eight of 20 BDAs showed inhomogeneous hyperenhancement during wash-in, which is a feature reported as typical of malignant lesions in dogs. BDC had a significantly faster wash-in compared with both BDA and HCC but the diagnostic accuracy of all the included quantitative variables was only moderate. No significant differences in the wash-out quantitative features of BDA and BDC were evident. CONCLUSION: There is poor evidence that CEUS may be used to distinguish between different primary hepatobiliary neoplasms in cats.


Assuntos
Adenoma/veterinária , Neoplasias dos Ductos Biliares/veterinária , Carcinoma Hepatocelular/veterinária , Carcinoma/veterinária , Doenças do Gato/diagnóstico por imagem , Neoplasias Hepáticas/veterinária , Ultrassonografia/veterinária , Adenoma/diagnóstico por imagem , Animais , Neoplasias dos Ductos Biliares/diagnóstico por imagem , Carcinoma/diagnóstico por imagem , Carcinoma Hepatocelular/diagnóstico por imagem , Gatos , Meios de Contraste , Diagnóstico Diferencial , Neoplasias Hepáticas/diagnóstico por imagem , Pesquisa Qualitativa , Ultrassonografia/métodos
18.
J Small Anim Pract ; 61(11): 704-709, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30488436

RESUMO

Patellar luxation and associated pelvic limb lameness were treated with polyethylene sulcal ridge augmentation prostheses in four cats. In all cases, the lameness resolved within weeks of a single surgery. No important complications were encountered. On radiographs obtained at least 2 years postoperatively, three cases showed radiographic progression of degenerative joint disease, and one showed evidence of screw loosening, but these were not reflected in apparent lameness and no case required revision.


Assuntos
Doenças do Gato , Luxação Patelar , Animais , Parafusos Ósseos/veterinária , Doenças do Gato/diagnóstico por imagem , Doenças do Gato/cirurgia , Gatos , Luxação Patelar/veterinária , Polietileno , Radiografia , Joelho de Quadrúpedes
19.
Vet Radiol Ultrasound ; 61(3): E26-E30, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-29797615

RESUMO

An adult cat was presented for acute history of vomiting and collapse. Radiographs showed the presence of air within small intestinal walls and arborizing gas patterns within the liver, compatible with pneumatosis intestinalis and presumed portal venous gas, respectively. An abdominal ultrasound the following day was suggestive of gas within the intestinal wall, however, gas within the hepatic vasculature, parenchyma, or biliary tree was not evident. Due to progressive clinical deterioration of the patient, the owners elected humane euthanasia. Necropsy revealed severe necrotizing hemorrhagic enterotyphlocolitis secondary to Clostridium difficile toxin.


Assuntos
Doenças do Gato/diagnóstico por imagem , Intestino Delgado/diagnóstico por imagem , Pneumatose Cistoide Intestinal/veterinária , Animais , Doenças do Gato/microbiologia , Doenças do Gato/patologia , Gatos , Enterocolite/diagnóstico por imagem , Enterocolite/patologia , Enterocolite/veterinária , Feminino , Pneumatose Cistoide Intestinal/diagnóstico por imagem , Pneumatose Cistoide Intestinal/patologia , Veia Porta/diagnóstico por imagem , Radiografia/veterinária , Ultrassonografia/veterinária
20.
Vet Radiol Ultrasound ; 61(4): 417-426, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31880347

RESUMO

The diagnosis and treatment of nasal foreign bodies usually includes a combination of rhinoscopy and imaging techniques, such as CT. The purpose of this retrospective, multicenter study was to describe the CT characteristics of nasal foreign bodies in dogs and cats and to determine if different nasal CT features exist between acute and chronic cases. Twenty dogs and six cats met the inclusion criteria. Eleven nasal foreign bodies (42%) were detected confidently with CT. The foreign body had a linear shape in 81% of cases and displayed a "tubular-like appearance" in 54% of cases. In five cases (19%), a foreign body was suspected but not clearly visible. Additional CT changes were present in the nasal passages in 96% of the cases. The presence of turbinate destruction (P = .021) and mucosal thickening (P = .014) on CT were associated with the presence of a chronic nasal foreign body. In this sample, the nature of the foreign body did not influence its visibility and was not associated with specific CT characteristics. Computed tomography may be useful in the investigation of nasal foreign bodies, however, a negative CT examination does not exclude their presence.


Assuntos
Doenças do Gato/diagnóstico por imagem , Doenças do Cão/diagnóstico por imagem , Corpos Estranhos/veterinária , Doenças Nasais/veterinária , Animais , Gatos , Cães , Feminino , Corpos Estranhos/diagnóstico por imagem , Masculino , Cavidade Nasal/diagnóstico por imagem , Cavidade Nasal/patologia , Nariz/diagnóstico por imagem , Nariz/patologia , Doenças Nasais/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/veterinária
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