Tilde Rodrigues Froes

Federal University of Paraná | UFPR · Department of Veterinary Medicine

Background: An essential component in the treatment of critically ill patients is volume replacement, but excessive intravascular fluid administration is associated with increased morbidity and mortality. Therefore, this intervention is only beneficial in patients who are fluid responsive, that is, when the individual has an increase in at least 15...

Background: Cystocentesis is a percutaneous aspiration of urine directly from the urinary bladder. It is a routine procedure in veterinary medicine for laboratory urine evaluation and bladder decompression in dogs and cats. Although considered simple and causing minimal discomfort, it remains invasive with potential risks of complications. These co...

Background: There is a high lamb mortality rate during the first 3 days of life, resulting in sheep flock economic losses and neonate welfare concerns. A significant number of neonatal deaths could be avoided by preventive management, early diagnosis, and consequently well-timed intervention. The aim of the study was to evaluate the use of umbilica...

Background: There is a high lamb mortality rate during the first three days of life, resulting in sheep flock economic losses and neonate welfare concerns. A significant number of neonatal deaths could be avoided by preventive management, early diagnosis, and consequently well-timed intervention. The aim of the study was to evaluate the use of um...

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 a...

Pulmonary hypertension (PH) triggers hemodynamic changes within the right heart, which may affect hepatic venous flow. The aims of this study were three-fold: to investigate, prospectively, the reliability of the hepatic vein Doppler waveform to diagnose and characterize the magnitude of PH in dogs; to evaluate whether a correlation exists between...

As falhas nos processos embriológicos são uma das principais causas de anomalias vasculares em cães. Dentre elas destaca-se a aplasia segmentar da veia cava caudal com shunt cavo-ázigos. Usualmente, os cães com essa anormalidade não apresentam sinais clínicos diferentemente do paciente relatado neste estudo. Um cão macho de oito meses de idade, Bor...

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 subm...

Objective To evaluate the sedative effects of a combination of sufentanil and midazolam administered intramuscularly (IM) or intranasally (IN) prior to induction of anesthesia with propofol in New Zealand White rabbits. Study design Prospective, randomized, crossover, experimental study. Animals A total of 11 adult New Zealand White rabbits. Met...

Background: Volume replacement is considered an essential component in the treatment of critically ill patients, but excess fluid administration can be as harmful as the lack of fluid therapy. Therefore, the volume replacement is only beneficial in patients deemed to be fluid responsive, that is, when the individual has an increase in their stroke...

Background Gastrointestinal (GI) diseases are common in rabbits. Although diagnostic imaging studies can assist clinicians in selecting therapeutic approaches, there are few reports of advanced imaging findings in normal rabbits. Computed tomography (CT) is recognized as a useful tool in dogs and cats, but there are few reports of normal findings o...

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...

Background There are few studies describing characteristics of the urinary tract in rabbits using multidetector computed tomography (CT). The aim of this study was to describe the CT appearance and main features of the urinary tract in healthy pet rabbits. Methods Twenty-three healthy rabbits underwent plain and contrast-enhanced CT scan under gen...

O ibuprofeno é amplamente utilizado na medicina devido suas características antipiréticas, anti-inflamatórias e analgésicas, e é relativamente seguro para humanos, mas quando administrados, de forma indevida, para animais de companhia, possuem efeitos colaterais indesejáveis. Os relatos da ingestão acidental de ibuprofeno por cães mostram que sinai...

Introdução: Pneumoperitôneo é definido como gás livre dentro da cavidade peritoneal e pode ser resultado trauma penetrante ou cirurgia abdominal. Em cães e gatos, a infecção abdominal por organismos produtores de gás, extravasamento de gás por ruptura de vísceras ocas e migração de gás decorrente da distensão de parede das vísceras são outras condi...

The aim of the study was to estimate the prevalence of congenital heart diseases in dogs attending two 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 two veterinary hospitals during a period of 70 m...

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) usi...

Introdução : O cálcio é essencial para o desenvolvimento saudável dos animais, principalmente no que diz respeito à formação óssea. Diversos fatores influenciam o metabolismo do cálcio, e a falha em qualquer um desses pontos pode resultar em doenças ósseas metabólicas. O raquitismo é uma doença incomum do crescimento ósseo que ocorre exclusivamente...

The objectives of this study were to evaluate the accuracy of thoracic radiology as a screening test for congenital heart diseases in dogs, to identify the main contributions and limitations of this modality, and to verify the reproducibility of the evaluations by three observers with different levels of training. An interobserver, observational, r...

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...

Abdominal ultrasound is frequently performed as part of initial staging of canine mammary tumors. The aims of this study were to describe abdominal ultrasonographic findings present at diagnosis of mammary tumors in dogs and to assess their value for associations with histopathological results and treatment outcome. The medical records of 201 femal...

Background: The ectopic ureter (EU) is considered a congenital anomaly in which the ureteral aperture opens in a position other than the bladder neck. The diagnosis involves the use of different methods or combination of image exams, including excretory urography, pneumocystography, ultrasonography, cystoscopy and computed tomography. The technics...

Objective: To evaluate the anatomy of the serratus plane in dogs to establish the optimal landmarks for a superficial serratus plane (SSP) block and evaluate ropivacaine-methylene blue solution dispersion with three volumes of injection. Study design: Prospective experimental cadaveric study. Animals: A formaldehyde solution-preserved dog cada...

RESUMO O stent endovascular autoexpansível pode ser utilizado como forma de tratamento para estenose uretral em cães. O stent de nitinol é composto por uma liga de níquel e titânio que permite mudanças em suas estruturas sob a influência da temperatura corporal e tem excelente biocompatibilidade na uretra canina. Este estudo relata o caso de um cão...

Background: Tendon injuries are common in horses and are commonly associated with lameness and athletic career disruption. Adhesions formed between the tendons and the surrounding tissues compromise the sliding and movement of the structures, compromising their functionality. Therefore, the control of adhesion formation is critical to restore the s...

The aim of this study was to estimate echocardiographic elevated mean left atrium pressure (MLAP) based on measurements from thoracic radiographs and to determine a cut-off value for each radiographic measurement that suggests a high MLAP. A retrospective cross-sectional study was performed to include cases admitted from January 2015 to December 20...

A perinephric abscess is a rare and difficult to treat disease in veterinary medicine. The aim of this paper is to report a case of successful treatment using capsulotomy and omentopexy for bilateral perinephric abscess in a dog.

Tendo em vista que afecções do sistema respiratório são grandes responsáveis por perdas de rendimento atlético de equinos, faz-se necessário o diagnóstico e tratamento precoce da doença para que o animal possa retornar à sua rotina sem perder de forma drástica sua performance. O presente artigo tem como objetivo abordar a técnica de toracoscopia co...

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 evalua...

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...

Although echocardiography is considered the gold standard for the diagnosis of congenital heart disease in dogs, radiographic examination of the thorax is still routinely and can potentially provide useful information in the evaluation of the patient. The aim of this review is to correlate the pathophysiological findings of the main congenital hear...

O abdome agudo na espécie equina é considerado uma emergência, sendo de grandeimportância a determinação precoce da necessidade ou não da intervenção cirúrgica comomedida terapêutica. Os objetivos dessa descrição de casos foram: identificar quais os achadosultrassonográficos (US) que auxiliam na determinação do paciente clínico ou cirúrgico, qual a...

There is a high incidence of bronchitis and asthma cases in veterinary medicine. Thoracic radiographs and bronchoalveolar lavage (BAL) are commonly performed for definitive diagnosis in dogs and cats with suspected bronchitis and asthma. It is believed that a combination of diagnostic tools is the best choice to achieve a diagnosis. The aim of this...

This study described characteristics and measurements of the liver, gallbladder, kidney, urinary bladder and jejunum of young and adults New Zealand White (NZW) rabbits. The young rabbits’s group was composed of 39 rabbits of both sexes (20 males and 19 females), weaned at 30-31 days of age, and the evaluations carried out at 35, 56 and 77 days of...

Objective: To evaluate the use of bronchoalveolar lavage as an auxiliary tool for the diagnosis of neoplastic lung metastasis from mammary tumours in dogs. Methods: A single-institution prospective observational study including 20 healthy dogs and 30 with mammary tumours. Thoracic radiography and single-aliquot, non-bronchoscopic bronchoalveolar...

Intraoperative ultrasonography (IOUS) is used in medicine for diagnosis and guidance during oncologic surgery. The aims of this study were to assess the performance, feasibility, advantages and difficulties of the IOUS technique in dogs with suspected intra-abdominal tumors. The study included nine client-owed dogs that had suspected intra-abdomina...

Imaging exams are frequently requested during assessment of oncological patients. Although advanced imaging techniques are already available in veterinary medicine, radiographic and ultrasonographic exams remain the basic diagnostic tools in veterinary oncology. This review describes some considerations to improve clinical approach to animals with...

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 provid...

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 w...

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)...

A radiografia de abdome é considerada a técnica mais precisa para a contagem do número de fetos. No entanto, há discordância na literatura sobre o momento ideal para realizar o exame para obter a contagem fetal mais precisa. Os objetivos deste estudo foram comparar, em dois períodos de gestação, a precisão da contagem fetal em cadelas a partir de r...

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 ut...

A ten-year-old male Burmese python (Python molurus bivitattus) was evaluated for coelomic distension in the second third of the body in the area around the heart. On radiographic examination an increase in soft tissue opacity was seen superimposed over the cardiac silhouette. Ultrasonographic examination revealed a cystic mass in the heart. The sna...

Magnetic resonance imaging has been significantly used in USA, Canada and Europe for evaluation of diseases affecting the nervous system in small animals. As far as the spine is concerned, the technique can be employed to assess the integrity of intervertebral discs and of structures adjacent to the vertebral body and to the spinal cord. To interpr...

The technological advances in veterinary imaging diagnosis are evidente nationally and internationally; new modalities shoud be considered wherever possible. The establishment of new technologies such as computed and/or digital radiography urges consideration for investigating abdominal masses in dogs and cats, despite the current influence of ultr...

Interpretation of pulmonary radiographs is one of the most difficult aspects of radiology and interobserver variability is high. The aim of this study was to assess variations in interpretation of pulmonary pathology amongst Brazilian veterinarians with different levels of training and experience, using the interpretation by American board-certifie...

OBJECTIVE To describe the effect of fasting on the technical success of abdominal ultrasonography specifically in respect of examination of the gall bladder, duodenum, pancreas, adrenal glands and portal vein in dogs.METHODS Randomised, prospective study of 150 dogs with a variety of physical characteristics. Animals were divided into two groups of...

As glândulas adrenais possuem funções endócrinas relacionadas a múltiplas funções vitais, estando intimamente relacionadas à capacidade do animal em se adaptar ao estresse. O exame ultrassonográfico é o método diagnóstico de escolha para avaliação das glândulas em diferentes espécies. Considerando a escassa literatura, questiona-se se as doenças ad...

Transabdominal ultrasonography is reported to be an important diagnostic tool used in horses with abdominal pain. Detailed knowledge of the topography of the major areas that provide diagnostic values for each sonographic window with regard to the changes in the gastrointestinal tract should be well established. The aim of this study was to describ...

Dogs with glaucomatous eyes referred to the Diagnostic Image Service at the Veterinary Hospital in the Federal University of Parana were studied using B-mode ultrasonography. Patients were submitted to a high resolution B-mode ultrasonography examination in order to perform ocular echobiometry. The following measurements were performed: central cor...

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 signific...

The investigation aimed to describe the most relevant morphological characteristics of the eyes of the striped owl (Asio clamator) and determine normal values for selected ophthalmic diagnostic tests. A total of 32 eyes of 16 young and adult free-ranging healthy striped owls of both sexes were investigated. Data of different morphological observati...

Objetivou-se relatar características morfológicas do bulbo ocular e determinar valores de referência para testes oftálmicos selecionados em corujas-orelhudas (Asio clamator). Foram estudados 32 olhos de 16 corujas (Asio clamator), adultas e jovens, machos e fêmeas, de vida livre. Sendo compilados dados referentes a observações morfológicas do crâni...

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 perfo...

Radiologists face numerous challenges in daily practice at attempting to better define the future workup of a patient. The confirmation and exclusion of gastrointestinal diseases that require surgery can be a dilemma to be faced, especially for young radiologists. The objective of this review is to describe some considerations for better management...

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. Three differen...

A 12-year-old male English Pointer was examined due to a soft-tissue swelling at the medial canthus of the right orbital region, which was causing facial deformity. The dog had epiphora, purulent nasal discharge, epistaxis, dyspnea, and progressive weight loss. An intraoral mass was observed near the right maxillary premolars. Neoplastic disease wa...

Background: Ultrasound is commonly used in queens for diagnosis and monitoring of pregnancy and may also be used to estimate the date of birth in cats with unknown date of mating, representing a valuable aid in clinical practice and in reproductive programs. The determination of gestational age can be made based on sonographic fetal measurements. I...

Different issues arise during the course of gestational ultrasound in female dogs. Such questions are correlated: the diagnostic confirmation of pregnancy, the calculation of gestational age, the evaluation of the number of fetuses and the diagnosis of fetal suffering. However, not all of these questions have simple answers, because some difficulti...

To compare ultrasonographic diagnoses with the findings of surgical exploration to identify and classify potential diagnostic errors. A cross-sectional prospective study of surgically confirmed ultrasound findings was conducted over a period of 29 months in two veterinary hospitals. Any errors in diagnosis made by the sonographer were classified as...