
Julia Maria MateraUniversity of São Paulo | USP · Department of Surgery
Julia Maria Matera
DVM, PhD, Associate Professor, Full Professor
About
171
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Introduction
Skills and Expertise
Additional affiliations
June 1978 - present
Publications
Publications (171)
Perineal hernia (PH) resulting from a weakness and tear of the pelvic muscles of the diaphragm. Repair of the pelvic muscles by surgical repositioning is the curative treatment. To report a modified technique of semitendinosus muscle transposition for perineal hernias treatment. Eleven male dogs were prospectively enrolled to repair perineal hernia...
Aortic arch anomalies can give rise to vascular rings, such as persistent right aortic arch (PRAA), a rare vascular anomaly in cats with significant health implications. Here, we report late surgical correction in a case of PRAA, an almost 12-month-old cat with the clinical syndrome of dysphagia and postprandial regurgitation. The patient was prese...
Arterioportal communications are complex hepatic vascular abnormalities. These are rarely seen in dogs and typically manifest as neurological, gastrointestinal, and developmental changes. This report describes clinical, laboratory and imaging findings associated with hepatic arterioportal malformation in a male Shih-Tzu dog aged 12 months. The diag...
Bovine respiratory disease (BRD) remains the greatest challenge facing the beef industry. Calves affected by BRD can manifest illness ranging from subclinical infection to acute death. In pathologies similar to BRD, extracellular histones have been implicated as major contributors to lung tissue damage. Histones are basic proteins responsible for D...
Ozone therapy has been used to control pain in animals. Moreover, electroacupuncture (EA) has been effective in neurological recovery and pain control in dogs with thoracolumbar discopathy. EA was compared with Ozone applied at acupuncture points in dogs with signs of thoracolumbar disk disease. Chondrodystrophic mongrel dogs, with lesion scores be...
Hemangiosarcoma is a mesenchymal neoplasm that originates in the endothelial cells of blood vessels. According to the location of origin, they can be classified as non-visceral and visceral types. Hemangiosarcoma can be very aggressive and metastasize to distant organs.
Medical thermography is an imaging test used to monitor skin surface temperature. Although it is not a recent technique, significant advances have been made since the 2000s with the equipment modernization, leading to its popularization. In cancer diagnosis, the application of thermography is supported by the difference in thermal distribution betw...
Simple Summary
Hemangiosarcoma is a mesenchymal neoplasm that originates in the endothelial cells of blood vessels. According to the location of origin, they can be classified as non-visceral and visceral types. Hemangiosarcoma can be very aggressive and metastasize to distant organs. The aim of this critical review is to present data on the epidem...
Background
In medicine, the transversus abdominis plane (TAP) block has been shown as an effective method of analgesia in several surgical procedures. In this context, this prospective, randomized, blinded study aimed to evaluate the analgesic efficacy of TAP block, guided by ultrasound in female dogs submitted to ovariectomy.
Methods
Therefore, 3...
Canine mast cell tumor is a malignant neoplasm, and a gold standard treatment remains to be determined despite the proposed chemotherapies or other therapies in dogs. This study aimed to determine therapeutic, adverse effects and toxicity, tumor-free, and overall survival times of 10 dogs with surgically excised mast cell tumors evaluated by histop...
Background
In cases of soft tissue sarcoma (STS), neoadjuvant therapy is indicated to downstage the tumour prior to surgery to achieve enhanced local tumour control. The antineoplastic phospholipid compound 2‐aminoethyl dihydrogen phosphate (2‐AEH2F) is an alkyl phosphate ester capable of inhibiting cell proliferation and inducing cell death by mod...
Mast cell tumors (MCTs) are common neoplasms in dogs, and treatments for these diseases include surgery, polychemotherapy and targeted therapy with tyrosine kinase inhibitors. This study aimed to evaluate the response and the adverse events of treatment with imatinib mesylate (IM) compared to conventional therapy using vinblastine and prednisolone...
Mast cell tumors (MCTs) are hematopoietic neoplasms composed of mast cells. It is highly common in dogs and is extremely important in the veterinary oncology field. It represents the third most common tumor subtype, and is the most common malignant skin tumor in dogs, corresponding to 11% of skin cancer cases. The objective of this critical review...
In dogs, circumanal tumors are the third most common skin neoplasm. Circumanal gland adenomas (CAGAs) have a good prognosis. Contrastingly, circumanal gland adenocarcinomas (CAGAC) have high relapse rates and may be metastatic. This study aimed to investigate the utility of thermal imaging as an ancillary modality for the diagnosis of canine CAGA a...
Strong to moderate vascular endothelial growth factor (VEGF) expression may be a negative prognostic factor in canine mast cell tumors (MCTs). This study set out to determine the prognostic value of combined analysis of VEGF-A immunoreactivity, clinical presentation, patient staging, and tumor histologic grade in canine MCTs. In this study, intense...
O sarcoma de aplicação felino (SAF), antigamente chamado de sarcoma vacinal, é um tumor cutâneo maligno de origem mesenquimal que se desenvolve no local de aplicação de vacinas e outros medicamentos, como antibióticos de longa duração, corticoides e anti-inflamatórios não esteroidais. Acomete animais de meia idade e o tempo de evolução da doença va...
Objective
To evaluate the cyclooxygenases (COX) inhibition, adverse effects and analgesic efficacy of dipyrone or meloxicam in cats undergoing elective ovariohysterectomy.
Study design
Prospective, blinded, randomized, clinical study.
Animals
A total of 30 healthy young cats.
Methods
The cats were randomly assigned to three postoperative groups: D2...
Objectives:
This study set out to determine the average temperature of skin and soft tissue tumors in cats using infrared thermography and to investigate correlations between thermographic findings and tumor type. Correlations between thermographic findings, histologic subtype and tumor grade were also investigated in cases of feline injection sit...
Foi realizada uma revisão sobre a fisiopatogenia, sinais clínicos, diagnóstico e principais tratamentos e técnicas para o desvio portossistêmico em pequenos animais. As fontes pesquisadas foram: CAB, MEDILINE por um período retrospectivo de 20 anos e acervos da Biblioteca da Faculdade de Medicina Veterinária e Zootecnia (FMVZ) da Universidade de Sã...
Objective Our objective was to compare the peak vertical force (PVF) and vertical impulse (VI) between dogs with cranial cruciate ligament disease and a tibial plateau angle (TPA) greater or less than 25 degrees.
Methods A retrospective study was performed in 18 dogs with cranial cruciate ligament disease in which kinetic gait data were obtained wi...
Lung lobe torsion is one of the causes of dyspnea and respiratory changes in dogs. Twisting of the bronchovascular hilum on its axis, leads to loss of function and metabolic and physiological changes that result in necrosis of the affected lobe. Atelectasis, venous congestion, and pleural effusion secondary to the lobe torsion are responsible for t...
Quando um exercício é realizado ocorrem diversas contrações musculares, transformando a energia química proveniente da dieta em energia cinética. Porém, nenhum organismo consegue uma eficiência de 100% nesse processo, sendo assim, o restante da energia é convertida em energia térmica, gerando calor, que será transportado para tecidos mais superfici...
Os sarcomas de tecidos moles (STM) são um grupo de diferentes tipos de tumores de origem mesenquimal; descritos como massas pseudoencapsuladas com margens mal definidas que apresentam índices altos de recidiva local em comparação ao baixo a moderado potencial metastático. Ocorrem tanto em seres humanos quanto em animais; compreendem aproximadament...
O objetivo foi estudar e aprimorar a técnica intracapsular de reparação do ligamento cruzado cranial assistida por artroscopia em cadáveres de cães com a confecção dos túneis tibial e femoral e utilização de autoenxerto osso-tendão patelar-osso. Foram utilizados 10 membros pélvicos de cães > 20kg. Os túneis ósseos foram confeccionados de forma inde...
This report describes a 14-year-old Pit Bull dog presenting with a soft tissue swelling of 3-month progression in the right sublingual region. Histopathological analysis of the surgically resected specimen revealed large numbers of mature adipocytes and islets consisting of mucin-containing atrophic acini and dilated ducts surrounded by a thin fibr...
Objective The purpose of this study was to investigate mobility performance in dogs suffering from hip osteoarthritis secondary to hip dysplasia using kinesiology.
Materials and Methods Twenty dogs with a radiographical diagnosis of bilateral hip dysplasia and hip osteoarthritis and 20 healthy dogs were submitted to kinetic and kinematic analysis w...
At the School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil, preliminary surgical training involving live animals has been replaced by the use of embalmed canine cadavers. This study aimed to improve the embalming technique based on the modified Larssen solution by altering the original formulation. Twenty-four canine c...
The contribution of computed tomography for staging and surgical planning of malignant perineal tumors in dogs is discussed. Five dogs diagnosed with malignant perineal neoplasms underwent to computed tomography (CT) examination. The CT image enabled investigation of cleavage planes between neoplastic lesions and adjacent structures such as the rec...
Background
Surgical sterilization of cats is one of the most commonly performed procedures in veterinary practice and it can be accomplished by two different techniques: ovariohysterectomy (OVH) or ovariectomy (OVE). Although there is an apparent preference for OVH in United States and Canada, OVE seems to be the standard of care in many European c...
The Brazilian government has published a resolution that bans animal use in some practical classes within undergraduate and high school technical education from April 2019. Resolution No. 38/2018, issued by the National Council for the Control of Animal Experimentation (CONCEA), bans the killing of animals for dissection purposes and animal experim...
Objectives:
Feline injection site sarcoma (FISS) is a rapid growing locally aggressive tumor with a low metastatic rate. Its histologic features are clearly defined, but there are few studies regarding its immunohistochemical characteristics. The present study investigated the immunohistochemical characteristics of 21 cases of FISS.
Methods:
FIS...
Surgical skill is developed through repetitive exercise. Hence, several institutions are adopting simulators and other training models in undergraduate programs and medical and veterinary residence program, enabling repetition of individualized exercises. In this study, we used the modified Larssen solution, in order to evaluate the preservation of...
Background
Canine breed conformation may interfere with locomotion and may predispose to orthopedic disease. Bulldogs have a high incidence of orthopedic diseases such as hip dysplasia. Kinetic gait analysis provides an objective way to assess and analyze locomotion. The aim of this study was to study the vertical forces of English Bulldogs during...
The Brazilian Network for Humane Education (RedEH) is an independent and self-managed
group comprised of academics from ten different Brazilian states and a number of international
collaborators. In 2016, in a concerted effort to change the educational field in Brazil and propagate
humane education, RedEH sent a request to the Brazilian National Co...
Feline injection site sarcoma is a malignant neoplasm with digitiform projections into muscular planes that are ill recognized during physical examination and may compromise tumor margin demarcation. This study compared tumoral size of 32 cats measured by different methods, and evaluated the CT density of 10 tumoral tissues (Hounsfield unit) based...
Article history Adipocytokines are substances produced by adipocytes responsible for the regulation of several physiological processes. Among those substances, leptin and adiponectin have been intensively investigated because of their possible effects on metabolism, reproduction, hematopoiesis and cardiovascular system. The current study aimed to a...
Esta revisão teve como objetivo elucidar e verificar o uso de condroprotetores comumente utilizados no tratamento conservativo para afecções articulares degenerativas em cães. Os critérios de inclusão se concentraram em estudos que avaliaram os condroprotetores mais empregados, como sulfato de condroitina e glucosamina, publicados em revistas cient...
Dentre as alterações obstrutivas do aparelho gastrointestinal de pequenos animais, a intussuscepção merece especial atenção, uma vez que apresenta ocorrência elevada e necessidade de tratamento urgente. A porção íleo-cólica é a mais acometida. Não existe predisposição racial e sexual, porém animais jovens apresentam maior incidência. Fatores predis...
A ruptura do ligamento cruzado cranial é a principal causa de dor em membro pélvico de cães. Tratase de uma afecção de caráter predominantemente degenerativo de desenvolvimento progressivo, resultando, na maioria das vezes, em doença articular degenerativa. Nos animais acima de quinze quilos o tratamento é geralmente cirúrgico, sendo a técnica mais...
A articulação do cotovelo é sede das principais afecções responsáveis pela claudicação em membrostorácicos em cães. Trata-se de uma articulação complexa composta pela porção distal do úmero eporções proximais do rádio e ulna. A incongruência do cotovelo é caracterizada por uma má formaçãodos componentes ósseos dessa articulação resultando em desniv...
Somatosensory evoked potentials (SSEPs) and motor evoked potentials (MEPs) are non-invasive neurophysiological tests that reflect the functional integrity of sensory and motor pathways. Despite their extensive use and description in human medicine, reports in veterinary medicine are scarce. SSEPs are obtained via peripheral stimulation of sensory o...
RESUMO: Este estudo teve como objetivo apresentar de forma detalhada dados morfológicos e morfométricos da articulação umerorradioulnar de cães de raça definida avaliados por meio de exames físicos, radiográficos e tomográficos. A amostra dessa pesquisa constituiu-se de 44 cotovelos de cães com idades variadas. Para análise de informações obtidas,...
Cranial cruciate ligament rupture (CCLR) is one of the most important orthopedic conditions in dogs, leading to joint instability, pain, osteoarthritis and eventually to meniscal injuries. Several surgical techniques have been described to reestablish joint stability following CCLR, including extracapsular procedures. This study compared the biomec...
O uso tópico do mel oferece considerável benefício nos cuidados de feridas como o estímulo de crescimento tecidual, aumento na epitelização e formação mínima de cicatriz. Estes efeitos decorrem da sua acidez, presença de peróxido de hidrogênio, efeito osmótico e conteúdo anti-oxidante. Uma cadela da raça labrador, de quatro anos, apresentou uma fer...
Perineal hernia occurs more frequently in non-castrated male dogs aged over five years. Surgical techniques for pelvic diaphragm repair are varied, and can be employed alone or associated with others and include the standard suture technique, transposition of the internal obturator muscle, transposition of the superficial gluteal muscle, transposit...
This study was aimed at evaluating vertical forces generated during locomotion in dogs affected with hiposteoarthritis (OA) submitted to chondroprotective treatment with chondroitin sulphate and lucosamine(CS-GLU). Eighteen dysplastic dogs suffering from secondary bilateral hip OA and treated with CS-GLU(200mg and 300mg/10kg/SID respectively) for 6...
Objective:
The study aims were to evaluate the effects of radial shock wave therapy (RSWT) in dogs with hip osteoarthritis (OA) using clinical assessment and kinetic analysis.
Methods:
Thirty dogs diagnosed with bilateral hip OA and 30 healthy dogs were used. In OA dogs, one limb was randomly selected for treatment with RSWT while the contralate...
Neoplastic disease is common in pet birds, particularly in psittacines, and treatment should be primarily aimed at tumor eradication. Nineteen cases of pet birds submitted to diagnostic and/or therapeutic surgical procedures due to neoplastic disease characterized by the presence of visible masses were retrospectively analyzed; affected species, ty...
Tracheal foreign bodies are rare emergency events. Several noninvasive methods are described for removal, such as bronchoscopy combined with appropriate grasping equipment or Foley catheter and forceps guided by fluoroscopy. However, complications can occur like pneumothorax, pneumomediastinum and irresponsive dyspnea as well as failure. Thus, pre-...
Avanços na medicina veterinária resultaram em benefícios significativos na vida de animais de estimação nos últimos 20 anos, e o aumento da expectativa de vida para animais levou a uma maior prevalência de neoplasias em cães. A Epidemiologia do Câncer e as ferramentas de análise espacial, embora bem desenvolvidas na pesquisa oncológica humana, estã...
Objectives:
This study describes the sonographic and computed tomographic (CT) characteristics of primary and recurrent feline injection site sarcomas (FISSs).
Methods:
Between 2005 and 2013, 32 cats were selected for prospective and retrospective studies. Tumor shape and margins, presence of thickening of the adipose tissue, muscular and bone i...
Canine nasal and paranasal diseases have variable causes. Presumptive diagnosis is based on clinical manifestations; however, high similarity of clinical signs often calls for diagnostic imaging modalities and rhinoscopy before a definitive diagnosis can be reached. This study sets out to determine the value of rhinoscopy, radiography, and computed...
A patologia cirúrgica veterinária apresenta moléstias de diversas naturezas que acometem cada vez mais frequentemente os cães e os gatos. Mesmo assim, poucos levantamentos são encontrados a respeito da casuística das ditas afecções cirúrgicas em pequenos animais, principalmente com dados obtidos na realidade do Brasil. O presente trabalho descreve...
In veterinary medicine, surgical education and training require the development of abilities that can be acquired in practical classes using currently available models such as cadaver training. Limited availability of cadavers, undesirable changes in tissue texture and the absence of bleeding are the main disadvantages of cadaver-based training com...
Objective:
To investigate the correlation between radiographic hip grade and kinetic parameters in German shepherd dogs.
Methods:
Dogs were distributed into five groups of eight dogs each according to hip grade (A, B, C, D or E). Dogs were submitted to clinical evaluation and kinetic analysis. Five valid passages were analysed using data collect...
O fator de crescimento do endotélio vascular (VEGF) é um fator angiogênico com papel importante em processos patológicos e fisiológicos. O VEGF pode ser quantificado em diversos fluidos orgânicos, incluindo amostras de soro e plasma. O presente trabalho investigou a concentração do VEGF no soro e no plasma de cães saudáveis a fim de recomendar o ma...
BackgroundA variety of analgesic agents are available, and which one can be used in dogs and cats is a highly controversial issue, existing however a fear in the use of opiates due to possible adverse effects that these drugs can cause. The aim of this study was to compare the analgesic effect provided by the administration of tramadol or pethidine...
Cranial cruciate ligament rupture (CCLR) is one of the most important stifle injuries and a common cause of lameness in dogs. Our objective was to measure the vertical forces in the pads of Pitbulls with cranial cruciate ligament rupture (CCLR) using a pressure sensitive walkway. A pressure sensitive walkway was used to collect vertical force data...
Hair follicle tumours generally present as benign, solitary masses and have a good prognosis following surgical resection.
This report describes a case of multiple trichoblastomas in a dog.
A 2-year-old crossbred dog presented with multiple soft cutaneous periocular, perilabial, submandibular and nasal nodules, between 2 and 9 cm in diameter, locat...
Vascular endothelial growth factor (VEGF) is an angiogenic factor with a key role in physiological and pathological process. It can be measured in several organic fluids, including serum and plasma samples. Te aim of this work was to investigate the concentration of serum and plasma VEGF of healthy dogs in order to recommend optimal handling of bio...
Nineteen dogs with mast cell tumors treated with chemotherapy were evaluated by computed tomography (CT). Were evaluated aspects related to contours, attenuation, post-contrast enhancement and presence of cleavage with adjacent structures. The RECIST criteria and volumetric measurement of lesions were performed to assess the response to treatment....
The study assessed retrospectively avian surgeries at the Service of Small Animal Surgery, Veterinary Hospital of the Faculty of Veterinary Medicine and Animal Science, University of São Paulo, performed during eight years. A total of 90 procedures was done for diagnosis or treatment of surgical disorders. From these, 27 were orthopedic and 63 soft...
This study investigated the correlation between KIT gene expression determined by immunohistochemistry and real-time polymerase chain reaction (RT-PCR) and the rate of tumour recurrence and tumour-related deaths in dogs affected with mast cell tumour (MCT). Kaplan-Meier curves were constructed to compare tumour recurrence and tumour-related death b...
The aim of the study was to investigate S100β levels in the cerebrospinal fluid of nonambulatory dogs with intervertebral disk disease treated with electroacupuncture:
10 dogs with thoracolumbar disk extrusion graded 3 to 5 (EA group) and 7 dogs without neurologic dysfunction (control group). All dogs regained ambulation. S100β was detected by West...
Objective:
To evaluate vertical forces in the pads of German Shepherd dogs by relative percentage among total limb vertical forces using a pressure sensitive walkway.
Procedure:
A pressure sensitive walkway was used to collect vertical force data for each pad of the limbs of 16 healthy client-owned German Shepherd dogs used for kinetic gait anal...
The objective of the study was to compare epidural and systemic tramadol for postoperative analgesia in bitches undergoing ovariohysterectomy. Twenty animals, randomly divided into two groups, received either epidural (EPI) or intramuscular (IM) tramadol (2 mg/kg) 30 min before anesthetic induction. Analgesia, sedation, cardiorespiratory parameters...
Mast cell tumors (MCTs) are the most frequent round cell tumors in dogs and comprise approximately 21% of all canine cutaneous tumors. MCTs are highly invasive and metastatic corresponding to the histological grade. E-cadherin is an adhesion molecule expressed in epithelial cells and although it is an epithelial cellular marker, studies have shown...
This work aimed to evaluate serum vascular endothelial growth factor (VEGF) in 25 dogs with soft tissue sarcoma, and in 30 healthy dogs. Blood was collected once time from the control animals and three times, in the same way, from animals with sarcoma. Blood count was performed in the blood collected, and serum VEGF was measured by enzyme-linked im...
Formation of new blood vessels is paramount for tumour growth and metastatic dissemination and vascular endothelial growth factor (VEGF) is one of the key regulators of this process. The purpose of this study was to evaluate the immunohistochemical expression of VEGF in 23 splenic hemangiosarcomas and 7 splenic hemangiomas in dogs. Blood tests perf...
O objetivo do presente estudo foi rever a prevalência das afecções esplênicas por meio da análise retrospectivado diagnóstico histopatológico de cães submetidos à esplenectomia. Os resultados foram confrontados com os exames laboratoriais, as manifestações clínicas, a presença de arritmias cardíacas e de hemoperitôneo,na tentativa de estabelecer o...
The occipital dysplasia has been characterized by a dorsal enlargement of the foramen magnum which can vary in size and shape. Clinical signs may be present or not in animals with occipital dysplasia. The purpose of this study was to radiographically analyze the morphology and morphometry of the foramen magnum of thirty healthy dogs. This study cho...