Sheila Rahal

São Paulo State University | Unesp

This study aimed to analyse the growth plate fusion and secondary ossification centres of the hind limbs in maned wolves ( Chrysocyon brachyurus ) using radiographs. Data from three maned wolves estimated to be 3–4 months old were utilised. The right and left hind limbs were radiographed in the mediolateral and craniocaudal views once a month until...

Although the stifle joint of wild felines shares several characteristics observed in domestic cats, others are specific to each species. This study aimed to evaluate the stifle joints of eight Puma concolor, including two young and six adults, through different imaging examinations. All stifles were assessed using radiographs and computed tomograph...

Purpose This study aimed to evaluate the effects of ozone therapy applied topically and/or by bagging on the healing of clean wounds induced in rat’s skin. Methods One hundred and twenty male rats of about 16 weeks old was divided into five groups: G1) saline solution (0.9%); G2) sunflower oil; G3) ozonated sunflower oil; G4) ozone bagging; G5) as...

Background Radiographs are useful for the initial evaluation of the hip joints. The information can be utilized for the betterment of animal health or other goals such as anatomic studies and gait analysis, among others. Therefore, this study aimed to evaluate radiographic measurements of the hip joint in capuchin monkeys, kept under human care at...

This study assessed axial and appendicular fractures in crab-eating foxes (Cerdocyon thous; Linnaeus, 1766) admitted to the Reference Center for Wildlife. Medical records and plain radiographs of C. thous were retrospectively evaluated. Seventy-four free-ranging C. thous were admitted over 10 years, of which 21 had fractures in the appendicular and...

Establishing cranial diameters by imaging studies is a valuable tool for assessing skull development, determining morphologic characteristics of the species, and can be used to assess early brain growth and for comparative and evolutionary studies. Skull development is a dynamic process, related to its growing contents and the sutures between the b...

Pelvimetry can be used to assess issues with locomotion as well as to diagnose cephalopelvic disproportion, as a predictor of the ability to give birth vaginally. Abnormal pelvic size is one of the skeletal deformities that can be associated with genetics, malnutrition, or trauma, regularly seen among non-human primates (NHP) at rescue facilities....

Objective To evaluate the in vitro mechanical properties of basilar fractures of the femoral neck stabilized with two or three titanium-cannulated screws in dogs. Study Design Ex vivo study. Sample Population Cadaveric canine femur (n = 21). Methods The bones were divided as follows: Group 1: control (no osteotomy); Group 2: osteotomy and stabiliza...

An adult yellow‐footed female tortoise ( Chelonoidis denticulata ) weighing 7.6 kg was voluntarily surrendered to the environmental police. The history‐taking could not be obtained due to a lack of information. Upon physical examination, a fluid‐filled structure prolapsed through the cloacal opening was observed. The aspirated fluid had a citrine‐y...

This study aimed to assess the fusion of growth plates and the development of secondary ossification centres in the forelimb bones of maned wolves ( Chrysocyon brachyurus ), contrasting the findings with established data from domestic dogs. Three maned wolves, comprising one male and two females, initially aged between 3 and 4 months, were subjecte...

Feeding of managed populations of giant anteater (Myrmecophaga tridactyla) is challenging in injured patients that present with anorexia. This report describes an approach for esophagostomy tube placement in this species. Cadavers of two adult giant anteaters were used for technique development. The animal was positioned in dorsal recumbency, and a...

Background Although critical to the overall condition of animals under human care, there is still limited information about oral health in neotropical primates. Methods We analyzed the main oral conditions and microbiota using mass spectrometry from 13 capuchin monkeys ( Sapajus apella ) under human care. The findings were registered on odontogram...

A senile male black capuchin monkey ( Sapajus nigritus ) kept under human care in a Zoo was found dead after 2 weeks presenting signals of weight loss and hyporexia. Histopathological revealed a necrotizing encephalitis. Although it was not observed microscopically, Sarcocystis sp infection was detected in brain tissue from molecular assays. These...

Purpose To evaluate the inductive capacity of F18 bioglass putty on the induced membrane technique in a segmental bone defect of the rabbit’s radius. Methods Ten female Norfolk at 24 months of age were used. The animals were randomly separated based on postoperative time points: five rabbits at 21 and four at 42 days. A 1-cm segmental bone defect...

An approximately 3‐month‐old female free‐ranging jaguarundi ( Herpailurus yagouaroundi ) was admitted for evaluation of swelling near the right stifle and inability to use the right hindlimb. Radiographic examination revealed a closed, short oblique fracture of the right distal femoral metaphysis, and the bone cortex appeared thin. Because of the p...

Objective The aim of this study was to perform gait analysis using a pressure-sensitive walkway in dogs submitted to high (total) or low amputation (partial) of one forelimb or hindlimb. Study Design A total of 39 dogs met the inclusion criteria. The reasons for the amputations were motor vehicle accidents in 38 dogs and possible limb malformation...

Contexto: O quati é um mamífero da ordem Carnivora, da família Procyonidae, amplamente distribuído no Brasil. Quatis em cativeiro estão sujeitos a distúrbios nutricionais, com acúmulo de tecido adiposo na região abdominal e obesidade. Além disso, os procionídeos podem apresentar ectoparasitas, como pulgas, piolhos e carrapatos. Como há falta de inf...

This study aimed to evaluate the beaks of three species of birds using radiography and computed tomography (CT). The mean lengths of maxillary and mandibular rostra on radiographs were highest for toco toucan, followed by buff‐necked ibis, and least for red‐legged seriema birds. The height and width of maxillary and mandibular rostra measured on CT...

Clostridioides difficile is a strictly anaerobic, spore-forming Gram-positive bacterium associated with diarrhea, known as C. difficile infection (CDI). In domestic animals, C. difficile is considered an important pathogen mostly in pigs and horses, but there are also reports in other domestic species. In wild animals, the epidemiology of C. diffic...

A 9-year-old female crossbred dog was referred due to a tongue neoformation. Marginal resection was performed to proceed with histopathological examination that indicated a malignant round cell neoplasia, and immunohistochemical staining diagnosed the mass as plasmacytoma. The owner refused another surgical intervention to extend margins and approa...

This study aimed to evaluate radiographic and sonographic features, and histogram parameters based on grayscale ultrasound of the liver and spleen in healthy toco toucans. Fifteen adult toco toucans (Ramphastos toco), seven females and eight males, weighing approximately 650 g, were enrolled in the study. On the right lateral radiographic view, the...

Background: Klippel-Feil Syndrome (KFS) is a rare diagnosed condition in human and animals. They are usually as-ymptomatic and considered a clinical finding after image exam due to another neurological sign. This syndrome can be classified in Type I, Type II or Type III. The immobile neck may cause a biomechanical change in the spine motion and pre...

The lateral luxation of a tooth is a traumatic dentoalveolar injury, which causes partial or complete tooth displacement and periodontal damage. We report a female mixed‐breed dog referred to the dentistry service with a lateral luxation of the maxillary left canine tooth due to a trauma‐related alveolar bone fracture. This unusual lesion is often...

This study aimed to assess the sonographic features of abdominal organs in healthy captive Neotropical otters (Lontra longicaudis). The sonograph showed that the urinary bladder was located in the caudal abdomen and its content was uniformly anechoic. The bladder wall had three layers: outer hyperechoic serosa, hypoechoic muscular layer and hyperec...

Anthropogenic disturbances affecting forest areas can increase disease prevalence and susceptibility in several species of arboreal mammals, such as sloths. Thus, this study aimed to evaluate the most common conditions in body systems of free-ranging sloths admitted at the Wildlife Triage and Rehabilitation Center of Amazonas of the Institute of En...

Este estudo teve como objetivo correlacionar os resultados dos exames bioquímicos séricos usados para avaliação hepática de papagaios verdadeiros submetidos ao exame de citopatologia por agulha fina (CAF), a fim de identificar diferenças entre os achados bioquímicos de exames citológicos normais e alterados. Amostras de citopatologia por agulha fin...

This study aimed to describe sonographic features of the liver, gallbladder and hepatic histogram from grey‐scale ultrasound in three species of healthy non‐venomous snakes. Twenty‐eight adult snakes were enrolled in the study, including 10 common boas ( Boa constrictor ), eight black‐tailed pythons ( Python molurus ) and 10 rainbow boas ( Epicrate...

A free‐ranging adult, 1.59‐kg, female orange‐spined hairy dwarf porcupine ( Sphiggurus villosus ) was presented due to inability to locomotion. Ventrodorsal and lateral radiographs of the pelvis showed craniodorsal luxation of the right hip joint, and ischial fracture on the left side. Femoral head and neck ostectomy was performed, but the lesser t...

A 19-year-old male ostrich (Struthio camelus) was referred to a veterinary teaching hospital (São Paulo State University, Botucatu, Brazil) due to a 6-month history of recurrent prolapse of the phallus. On physical examination, 2 ulcerative wounds were present on the phallus, as well as caseous plaques and myiasis. Conservative treatment resulted i...

This study aimed to evaluate the infrared thermography, arterial Doppler ultrasound, and Doppler echocardiography in healthy adult dogs exposed to a single Whole-body vibration (WBV) at different frequencies. Sixteen (16) healthy crossbreed dogs males of ages from 1 to 5 years, and weighing 16.3 to 24.5 kg were enrolled in the study. The dogs were...

This retrospective study aimed to identify the common extra-pelvic injuries at the first admission at the hospital of cats with pelvic fractures. The medical records and radiographs were assessed. Seventy-three cats with pelvic fractures were identified, of which 41 were associated with extra-pelvic injuries. Of the 41 animals with extra-pelvic inj...

Background: Radiographic measurements are a useful tool to assess skeletal health and development in primates. This study aimed to perform radiographic measurements of hind limbs in capuchin monkeys. Methods: Twelve Sapajus spp. were used; ten adults and two sub-adults, nine females and three males. Results and conclusions: The pelvimetry showed th...

Background Ligamentum teres (LT) has traditionally been considered a vestigial or redundant structure in humans; however, based on new studies and the evolution of hip arthroscopy, the LT injury has been viewed as a source of hip pain. Therefore, LT reconstruction can be beneficial in some cases. Rabbits have been frequently used as a model for cra...

The utilization of antibiotic-loaded cement spacer in the induced membrane development has been a debate topic in human medicine. To the best of the author's knowledge, these combinations have not yet been evaluated in birds. Therefore, this study assessed induced membrane formation using radiography and histology, in a segmental defect of a chicke...

This study aimed to perform histological, immunohistochemical, biomechanical, and wettability assessments of leukocyte- and platelet-rich fibrin (L-PRF) membranes obtained from the blood of healthy dogs. Ten client-owned Labrador Retriever dogs were enrolled. Blood samples were obtained from the external jugular vein using a vacuum tube without ant...

Data on dogs and cats that underwent surgery for a traumatic diaphragmatic hernia were retrospectively collected and analyzed, with an objective to identify factors that influenced the survival rate. Forty-nine dogs and 48 cats were included. The predominant respiratory clinical sign was dyspnea, and the interval from trauma to development of clini...

This study aimed to compare renal function between obese and normal‑weight healthy cats, using intrarenal resistive index (RI), serum symmetric dimethylarginine (SDMA), and serum creatinine, and to identify the variables that might influence intrarenal RI. Thirty crossbred client‑owned cats met the inclusion criteria and were allocated into two gro...

The study aimed to assess plasma Myeloperoxidase enzyme (MPO) and Ferric-reducing antioxidant power (FRAP) in obese dogs and compare them with ideal body weight dogs. Thirty-two dogs were distributed into two groups according to a 9-point body condition score (BCS), as follows: Control group (n = 16), dogs with a BCS of 4 or 5; Obese group (n = 16)...

An approximately 5‐month‐old, male puma (Puma concolor) was rescued after being hit by a vehicle on a highway. Radiographic examination revealed caudal endplate fracture of L6 and fissure of the vertebral arch with articular facet involvement. Conservative treatment was considered the most appropriate option due to the clinical signs, location and...

A 2‐year‐old, 22.5 kg, entire, male Amazonian brown brocket buck (Mazama nemorivaga) was presented with difficulty in prehending food, ptyalism, inability to close the mouth and lateral deviation of the tongue. Physical examination revealed poor rostral mandibular occlusion, mobility of the left hemimandible incisors, instability and crepitus of th...

Objectives This study aimed to evaluate renal measurements by B-mode ultrasound in kittens during their first 3 months and compare them with those of young adult cats. Methods Forty-eight healthy mixed-breed cats (24 males and 24 females) were enrolled in this study. The cats were divided into six age groups: groups 1–5 (kittens) and group 6 (youn...

This study aimed to determine the echocardiographic parameters of blue-fronted Amazon parrots (Amazona aestiva, Linnaeus, 1758) with varying body condition scores. Thirty-five birds only grown in captivity were included in the study and allocated into three different groups according to their respective body condition scores: Lean, Ideal, and Obese...

Background: Cholelithiasis is a digestive system disorder of multifactorial origin that occurs due to stones formed in the gallbladder. This study aimed at investigating by abdominal ultrasound examination the prevalence of cholelithiasis in lion tamarins kept under human care. Methods: Thirty lion tamarins from five Brazilian zoos, including 17...

Purpose: To evaluate in-vivo degradation of two bioabsorbable interference screws. Methods: Twenty-two crossbred Santa Inês ewes were used. A poly-DL-lactide (PDLLA) screw (70%/30%) was inserted in the right pelvic limb, and a PDLLA screw (70%) + β-tri-calcium phosphate (β-TCP) (30%) in the left pelvic limb. Animals were euthanized at one, four,...

Epidemiological characteristics and severity of the wounds can vary depending on the environmental factor and the owner's socioeconomic status. This study retrospectively assessed dogs with bite wounds inflicted by another dog presented at a Veterinary Teaching Hospital. A total of 467 patients were identified, 55.2% males and 44.7% females, aged f...

Estudos relativos ao reconhecimento e importância da doença articular degenerativa em gatos requerem maior divulgação, em virtude das particularidades associadas à espécie. Sendo assim, a presente revisão teve por objetivo discorrer sobre os métodos diagnósticos da doença articular degenerativa/osteoartrite do esqueleto apendicular e enfatizar os a...

Objective: The aim of this study was to evaluate the influence of near-cortical over-drilling holes on the mechanical behaviour of locking plate constructs applied in maned wolf's femur by using mechanical testing and finite element method (FEM). Study design: Seven pairs of adult maned wolves (Chrysocyon brachyurus) femur bones were randomly di...

This retrospective study aimed to identify and classify fractures in the appendicular and axial skeletons of birds from the Cariamidae and Falconidae families presented to a referral centre. Twelve of thirteen adult red-legged seriemas (Cariama cristata) had appendicular skeleton fractures and one an axial skeleton fracture. All appendicular skelet...

Accelerometers may be used as a tool for objective analysis of kinetic and/or temporospatial gait parameters; however, only a few studies have been done in small animals. Therefore, this study analysed surface electromyography (sEMG) signals related to inertial sensors (accelerometry), aiming to create a reproducible standard in dogs. The hypothesi...

A 2-year-old, 4.2 kg, spayed female, Maine coon cat was referred to the veterinary hospital for evaluation of hyporexia, slow growth, and chronic, intermittent, mucoid, bloody, voluminous, and fetid diarrhea. The diarrhea had been observed since the cat was acquired from a cattery at 4 months of age; with acute worsening in the 5 d before presentat...

This study aimed to evaluate the effects of reticulated hyaluronic acid (HA) alone or associated with whole-body vibration (WBV) in dogs with osteoarthritis due to hip dysplasia. Fourteen dogs were randomized assigned into two groups of seven animals: Group 1 (G1) — single intra-articular injection of hyaluronic acid; Group 2 (G2) — single intra-ar...

This study investigated the effects of WBV in clinical, cardiac, and ambulatory electrocardiographic (Holter) parameters of healthy young and aged male non-athletic dogs. Fourteen dogs were divided into two groups of seven animals: Group I (GI) - young dogs (12.0 and 84.0 months old); Group II (GII) - aged dogs (above 84.0 months old). Dogs were su...

Radiotherapy is a medical modality that has been constantly revolutionizing with the offer of three-dimensional computational for treatment planning systems (TPS), providing greater security in the release of the radiation dose in the target volume, improving the therapeutic response and minimizing the radiobiological effects unwanted. The incorpor...

Purpose: To evaluate the effects of the intra-articular application of hyaluronic acid associated with triamcinolone acetonide, and ozone gas in the treatment of induced osteoarthritis in rabbit's stifles. Methods: Twenty-one Norfolk rabbits were submitted to cranial cruciate ligament transection of the left stifle. After six weeks of the surger...

This study aimed to perform quantitative and qualitative evaluations of the lateral and third ventricles, and brain parenchyma, in healthy dogs of different skull conformations on CT scans. Forty-five adult client-owned dogs were divided into three groups according to skull conformation: G1 (dolichocephalic)—15 German Shepherds; G2 (mesaticephalic)...

O trabalho aqui apresentado tem como objetivo demonstrar o sucesso de um paciente submetido a cirurgia de estabilização ventral através de parafusos e cimento ósseo. Clinicamente a cadela se apresentava tetraparética e com quadro progressivo de piora, com dor, comprometimento respiratório e cegueira, o que fez a decisão cirúrgica ser de extrema imp...

Purpose: To evaluate the low-level laser therapy (LLLT) on the membrane induced by the Masquelet technique in rabbits. Methods: Twelve Norfolk rabbits at approximately 3 months of age were used. A 1-cm segmental defect was induced in both radii, which were filled with polymethylmethacrylate cylinder. LLLT was used postoperatively in the bone def...

The evolution of cutaneous open wounds was evaluated in five client-owned dogs treated with photodynamic therapy (PDT), mediated by methylene blue and phototherapy with light-emitting diodes (LED) as the light source. On the first day of treatment, the wound was irrigated with sterile 0.9% sodium chloride solution, the surface was dried, and 3% sol...

This study aimed to evaluate the joint involvement in dogs with visceral leishmaniasis by means of orthopedic physical examination, radiographic and computed tomographic (CT) findings. Of the 46 evaluated dogs, an overall of 91.3% presented joint (carpal, tarsal, elbows, and stifle) abnormalities, observed on physical examination, radiography and/o...

Baseline data for wall thickness in healthy toucans can be used to diagnose disease in sick individuals. This study aimed to evaluate the use of ultrasonography for the examination of the gastrointestinal tract of healthy toco toucans (Ramphastos toco). Ten non‐anaesthetized healthy adult toco toucans were evaluated. Food was withheld for 3 h prior...

Polymethylmethacrylate bone cement is a standard material used as antibiotic carrier in the orthopedic surgery. The ultrasonic energy method is capable of triggering biological effects based on both thermal and non-thermal mechanisms. The aim of the current study is to analyze methylene blue dispersion in polymethylmethacrylate beads, in associatio...

Betatherapy is a radiotherapy modality that uses beta radiation applicators used in the treatment of superficial injuries. With the advancement of therapeutic techniques, new clinical protocols of veterinary medicine will be established and betatherapy emerges as an important option for performing radiotherapy procedures, and further studies for th...

Betatherapy is a modality within brachytherapy that uses beta radiation applicators, which are used in the treatment of superficial injuries. With the advancement of therapeutic techniques, new clinical protocols in veterinary medicine will be established. In this sense, betatherapy appears as an important option for performing radiotherapy procedu...

This study evaluated the formation of a Masquelet-induced membrane created through the formation of segmental bone defects in the radii of 15 healthy domestic chickens. When the chickens were in a surgical plane of anesthesia, a 1.5-cm segmental bone defect was produced in the left radius, which was subsequently filled with a bone cement spacer dur...

This prospective, comparative, randomized, horizontal, and double-blind clinical study investigated the clinical efficacy of leucocyte-poor platelet-rich plasma (PRP, n=8) or allogeneic adipose-derived stem cells (ADSC, n=8) in dogs with bilateral degenerative hip joint disease (DHJD). Sixteen dogs were treated with two intra-articular injections o...

Like canids, crab-eating foxes may probably be predisposed to similar orthopedic diseases of domestic dogs, such as hip dysplasia. However, for the adequate hip dysplasia diagnosis in wild animals, the normality characteristics of each species must be determined. This study aimed to estimate radiographic and computed tomographic (CT) values of hip...

Background: Osteoarthritis is a degenerative joint disease that affects specially cartilage, meniscus, and tendons. Ligaments , muscles, subchondral bone and synovium. This pathology is a common condition limiting the quality of life of patients. Imaging modalities have also been used for evaluation the progression of the osteoarthritis, or degener...

Autologous platelet concentrates have been used in regenerative medicine in humans due to the abundance of growth factors, but there are only a few reports in small animals. This study aimed to prepare and characterize a leukocyte and platelet-rich fibrin membrane (L-PRF) produced with blood obtained from cats. Thirteen client-owned healthy adult M...

The term spinal dysraphism defines an incomplete fusion or a bone defect that affects the neural structures of the spinal cord due to a neural tube malformation. A 6-month-old, male, mixed-breed dog, was evaluated for paraparesis, pelvic limb proprioceptive ataxia, faecal and urinary incontinence. A neurological examination indicated an L4-S3 spina...

This study evaluated the serum cortisol response to a single session of whole-body vibration (WBV) in healthy adult dogs. Ten healthy adult medium dogs, females and males, aged between 24 and 48 months and with body weight between 10.1 and 17.9 kg were used. A single WBV session at a frequency of 30 Hz for 5 min (3.10 mm peak displacement, 11.16 m/...

A betaterapia é uma forma de braquiterapia onde a fonte emissora de raios beta é posicionada diretamente na área em que se deseja tratar. As principais aplicações são em dermatologia e em oftalmologia no tratamento de lesões superficiais, pois as partículas betas têm grande poder de ionização e pequeno alcance no tecido. A radioterapia em medicina...

Background: Ureteroceles are cystic dilatations of the terminal ureter and is a rare diagnosed condition in dogs. They can be classified as orthotopic when it is entirely within the bladder and the ureteral orifice emerges normally or ectopic if the ureteral orifice is not in the normal position in the trigone. Orthotopic are usually clinically sil...

O presente estudo teve como objetivo avaliar o efeito anti-inflamatório do dimetilsulfóxido (DMSO) em cadelas diagnosticadas com neoplasia mamária e submetidas à mastectomia unilateral associada com a ovariohisterectomia pelo acesso abdominal lateral (flanco). Foram utilizadas 20 cadelas de raça e massa corpórea variadas, e diagnosticadas com neopl...

Background: Whole-Body Vibration (WBV) is an oscillatory mechanical stimulus spreading throughout the body and considered a type of physical exercise because of the activation of the cardiovascular, musculoskeletal, and neuroendocrine systems. It is a physical exercise modality since it promotes cardiovascular resistance, increase in muscular stren...

Background: Osteoarthritis is a complex degenerative disease with several factors contributing to joint damage. Objective: To compare the potential effect of hyaluronic acid (HA) and triamcinolone acetonide (TA), alone or combined, on the in vitro chondrogenic differentiation process of mesenchymal stem cells (MSCs). Methods: MSCs were divided in...

Os principais sinais clínicos da osteoartrose incluem a claudicação e a diminuição da amplitude de movimento articular. A diminuição do espaço articular é uma característica importante e comum em osteoartrose femorotibial, podendo induzir ao aumento da pressão intra-articular dentro do espaço fascial ou osseofascial e desencadear a Síndrome Compart...

This study aimed to evaluate reticulated hyaluronic acid alone or associated with ozone gas in the treatment of osteoarthritis due to hip dysplasia in dogs. Fourteen client-owned dogs were randomly assigned into two groups: Group 1—single intra-articular injection of hyaluronic acid; Group 2—single intra-articular infiltration injection of hyaluron...