Small or Companion Animal Medicine Commons^™

Feasibility Of Computed Tomography For Differentiating Calcium Oxalate And Struvite Calculi Using Mean Hounsfield Unit And Hounsfield Density, Somchin Sutthigran, Phasamon Saisawart, Vachira Hunprasit, Nan Choisunirachon, Kiatpichet Komin

The Thai Journal of Veterinary Medicine

Accurate preoperative prediction of cystic calculi composition is essential for effective treatment planning in dogs. This prospective study aims to investigate the utility of non-contrast multi-detector computed tomography (MDCT) in differentiating calcium oxalate (CaOx) and struvite calculi based on mean Hounsfield unit (HU) and HU density values. Nineteen client-owned dogs with confirmed cystic calculi underwent non-contrast MDCT imaging at 80 and 120 kilovoltage peak (kVp) settings prior to surgical removal. Calculi composition was determined via laboratory analysis. Mean HU and HU density were measured and compared between calculi types. The results showed CaOx calculi demonstrated significantly higher mean HU (1317.53 …

Diagnostic Imaging Of A Large Pancreatic Pseudocyst With Infection Over Time In A Dog, Chanyoung Ryu, Wooseok Jin, Sang-Kwon Lee, Daji Noh, Sooyoung Choi, Kija Lee

The Thai Journal of Veterinary Medicine

A 5-year-old Pompitz presented with anorexia and vomiting. Radiographs showed a half-moon-shaped mass in the left cranial abdomen. A large cyst was identified near the left pancreas on ultrasound. Computed tomography revealed a fluid-attenuating mass with rim enhancement in the pancreas. Laboratory tests identified Staphylococcus warneri in the cystic lesion, and pancreatic pseudocyst with infection was suspected. The fluid accumulation and clinical signs recurred over several months. Pre-operative magnetic resonance imaging showed a hyperintense cystic lesion with a duct-like structure and hyperintense line between the cyst and the gastric wall on T2-weighted images as well as signal change of the …

Proteomic Comparison Of Canine Gallbladder Versus Hepatic Neuroendocrine Neoplasms, Nadia Richmond

LSU Master's Theses

Hepatobiliary neuroendocrine neoplasms (HBNENs) are uncommon tumors in people and dogs, and the limited understanding of their biologic behavior often poses a diagnostic and prognostic challenge in the clinical setting. Though only a low number of cases have been described in dogs, there is evidence to indicate that primary gallbladder NENs may carry a more favorable prognosis compared to primary hepatic NENs. The emergence of liquid chromatography-mass spectrometry (LC-MS) in proteomic analysis has permitted large-scale analysis of neoplastic proteomes, allowing for better understanding of tumor pathophysiology while simultaneously enabling the rapid identification of protein biomarkers. Previous work in our laboratory …

Clinical Features And Imaging Characteristics Of Penile Hematoma Mimicking Priapism In A Dog, Yujeong Shin, Dongseok Kim, Daji Noh, Min Jang, Young-Sam Kwon, Sang-Kwon Lee, Kija Lee

The Thai Journal of Veterinary Medicine

A 2-year-old, castrated male Jindo dog presented with 6 days of penile swelling and protrusion, suggesting priapism. Blood gas was analyzed by aspirating the corpus cavernosum to differentiate the type. However, the results were ambiguous. Ultrasound and computed tomography revealed a well-encapsulated mass ventral to the urethra. Magnetic resonance imaging showed a mass (T2-hyperintense, T1-hypointense, with no contrast enhancement) located ventral to the urethra. Cytology revealed only red blood cells, confirming a hematoma. Penile hematoma mimicking priapism was diagnosed. After 11 weeks of glucocorticoid administration, the hematoma and the protruded penis resolved. This case suggests that penile hematoma can be …

Treatment Strategies Of Biliary Stones Through Multiple Liver Lobectomy And Cholecystectomy In A Dog, Jae-Hwan Jung, Seoung-Yob Ahn, Mu-Young Kim, Hun-Young Yoon

The Thai Journal of Veterinary Medicine

A 12-year-old spayed female Maltese dog weighing 3 kg was referred to our Veterinary Medical Teaching Hospital for the evaluation of gallstones. The dog had a history of splenectomy and underlying Cushing’s syndrome and had received ursodeoxycholic acid for 2 months. The dog presented with clinical symptoms, including icterus, vomiting, anorexia, lethargy, and abdominal pain. Radiography, ultrasonography, and computed tomography revealed choleliths in the gallbladder, cystic duct, common bile duct, and the hepatic ducts of the quadrate, left medial, and left lateral lobes. In addition, we identified atrophy and cirrhosis of the corresponding lobes of the liver. The choleliths were …

Progestin-Based Non-Surgical Contraception In Dogs And Cats: A National Survey Of Practices Among Thai Veterinarians, Shanaporn Leelakajornkit, Piyaporn Kamdee, Suppawiwat Ponglowhapan

The Thai Journal of Veterinary Medicine

This cross-sectional study aimed to assess the current use of progestins as contraceptives in dogs and cats and to evaluate veterinarians' awareness of related complications across Thailand. A total of 724 veterinarians participated, predominantly female (66.3%) and aged 31-40 years (49.6%), with most working in Bangkok and its metropolitan area (52.6%) and having 6-15 years of experience in small animal practice (46.4%). Approximately 6.8% of respondents (49/724) reported using injectable progestins, mainly in female dogs (87.8%) and cats (83.7%), but also in male dogs (18.4%) and cats (14.3%). Veterinarians using progestins were mostly male (59.2%), with an average age of …

A Conjunctival Mast Cell Tumor In Golden Retriever: A Case Report, Orapun Jaturakan

The Thai Journal of Veterinary Medicine

A high-grade mast cell tumor of the conjunctiva in the Golden Retriever is a rare condition. Wide excisional conjunctival mass biopsy is suggested, combined with chemotherapy. A 9-year-old neutered female Golden Retriever with a painless conjunctival mass at the right temporal bulbar conjunctiva was presented at the Ophthalmology Clinic of the Small Animal Teaching Hospital, Faculty of Veterinary Sciences, Chulalongkorn University. Complete physical and ophthalmic examinations were performed. The metastasis of the primary conjunctival mass was investigated by radiography of the skull, orbit, thorax, and abdomen, as well as by ultrasonography in the orbit and abdomen. No metastasis was confirmed …

Computed Tomography And Magnetic Resonance Imaging Of Maxillofacial Rhabdomyosarcoma And Suspected Multiple Metastases Including The Epidural Space And Bone Marrow In A Dog, Sang-Kwon Lee, Kija Lee

The Thai Journal of Veterinary Medicine

A 3-year-old mixed-breed dog presenting with a recurrent maxillofacial tumor was diagnosed with recurrent rhabdomyosarcoma. Computed tomography and magnetic resonance imaging revealed a left maxillofacial mass, left cervical lymph node enlargement, epidural mass dorsal to the 6th lumbar vertebra compressing the cauda equina, soft-tissue mass ventral to the 6th lumbar vertebra, multiple subcutaneous nodules and signal changes in the paravertebral muscles. The left maxilla, lumbar spine and ilium exhibited diffuse signal changes and contrast enhancement upon magnetic resonance imaging. This is, to our knowledge, the first reported case of bone marrow and epidural-space involvement of a canine rhabdomyosarcoma.

High-Speed Dental Drill May Be An Acceptable Instrument Performing Canine Laminectomy, Ziyao Zhou

The Thai Journal of Veterinary Medicine

Laminectomy is usually used in spinal cord dysfunction like intervertebral disc herniation. High-speed pneumatic surgical drill is the most common surgical instrument for canine laminectomy operation. However, since the finical problem, the professional instrument has a low installation rate in animal hospitals in developing country. In this study, we hypothesized that dental drill may replace pneumatic surgical drills in dorsal laminectomy and hemilaminectomy, observed if dorsal laminectomy and hemilaminectomy can been successfully operated by dental drill, and compared the canine dorsal laminectomy and hemilaminectomy. Operations were performed in L2-L3 of lumbar vertebra among 12 Chinese rural dogs (6 for dorsal …

The Effect Of Intranasal Medetomidine/Ketamine And Diazepam/Ketamine Combinations On Tear Production And Intraocular Pressure In Dogs, Osman Bulut, Rahime Yaygingul

The Thai Journal of Veterinary Medicine

To determine the effect of intranasal medetomidine/ketamine and diazepam/ketamine combinations on tear production and intraocular pressure in dogs. The animal material included 28 dogs of different breeds, ages, weights and genders that were brought to the surgery department of the Adnan Menderes University, Faculty of Veterinary Medicine for simple anesthesia indications but were otherwise healthy ocularly. In a crossover design, the dogs were randomly assigned to 4 groups of 7 dogs. Animals in the first group were given 50 μg/kg of medetomidine and 10 mg/kg of ketamine intramuscularly (MEK-IM). The second group of animals was given 50 μg/kg of medetomidine …

Relationship Of Hyperlipidemia And Gallbladder Sludge Scores In Dogs With Hyperadrenocorticism, Jayeop Jo, Dohee Lee, Taesik Yun, Yoonhoi Koo, Yeon Chae, Dongwoo Chang, Byeong-Teck Kang, Mhan-Pyo Yang, Kyung-Duk Min, Hakhyun Kim

The Thai Journal of Veterinary Medicine

Hyperadrenocorticism (HAC) and hyperlipidemia have been identified as the causes of cholestatic disease in dogs. However, the possibility of direct association of HAC with a cholestatic disease or secondary hyperlipidemia-induced cholestatic disease in dogs with HAC has not been elucidated. This study aimed to evaluate the differences in serum triglyceride (TG), total cholesterol (TC) and basal cortisol (BC) concentrations based on the gallbladder (GB) sludge score in dogs with HAC. This study was a retrospective cohort study. In total, 36 dogs with pituitary-dependent hyperadrenocorticism (PDH) were divided into six groups (GB scores 0–5) based on the ultrasonographic evaluation of the …

Symmetric Dimethylarginine In Dogs With Pulmonary Arterial Hypertension, Siwayu Rattanakanokchai, Numfa Fungbun, Ketmanee Senaphan, Supranee Jitpean, Trasida Ployngam

The Thai Journal of Veterinary Medicine

Pulmonary arterial hypertension (PAH) causes impaired kidney function in humans. However, this occurrence has not been well investigated in PAH dogs. Serum symmetrical dimethylarginine (SDMA) is one of the early biomarkers of kidney impairment. The present study aims to evaluate SDMA levels of first diagnosed PAH (n=14) compared with healthy dogs (n=12) and to analyze the correlation between SDMA levels and significant echocardiographic parameters of PAH dogs. The mean SDMA of PAH dogs was statistically higher than that of healthy dogs (P = 0.003), while the mean serum creatine level had no difference among groups (P = 0.456). Precapillary PAH …

The Effects Of Additive Manufacturing On Canine Hind Limb Repairment Surgery, Annabel Keers

Honors Theses

The intention of this project is to explore some of the ways that additive manufacturing is affecting veterinary medicine. I will specifically be delving into canine hind limb repairment surgeries, such as cranial cruciate ligament reconstruction. 3D printed prototypes have been utilized in the human medical field for quite a while, and it has inspired such technology to expand into the world of veterinary medicine. Such emerging research is expected to take-off as the pet market grows in size and level of care for the health of our animals.

I took special interest in this field as I will be …

Physiological And Behavioral Stress-Induced Responses Of Dogs During Veterinary Examinations, Jessica Ellen Vester

Honors Projects

This study investigated whether stress responsiveness in dogs is more significant when the owner is present or absent during a veterinary examination. The study consisted of two experimental groups: "owner absent" and "owner present." Both groups consisted of 25 dogs each, totaling 50 dogs observed. A veterinarian and veterinary assistant recorded the dog's behavioral and physiological stress responses. Each group's behavioral and physiological stress-induced responses were compared using a Fischer Exact test and an Analysis of Covariance. The findings showed that dogs whose owners are present during the veterinary examination display fewer stress responses than dogs whose owners are absent …

Comparison Of Abdominal Computed Tomography To Ultrasound In The Diagnosis Of Canine Biliary Disease Manifesting As Acute Abdominal Signs, Shanna Christine Marroquin

Theses and Dissertations

Biliary diseases are uncommon, potentially fatal causes of acute abdomen in dogs. Little information is present comparing the performance of computed tomography (CT) to ultrasound in identifying canine biliary pathology. Thirty-five client-owned dogs presenting for acute abdomen signs received an abdominal ultrasound and contrast-enhanced abdominal CT. Two authors reviewed the randomized, anonymized CT and ultrasound studies. Twenty-eight dogs had biliary pathology and seven dogs serving as controls had no evidence of biliary disease. The final diagnoses of patients with biliary pathology included cholelithiasis, gallbladder mucoceles, cholangiohepatitis/cholangitis, extrahepatic biliary obstruction, gallbladder wall edema, gallbladder wall mass, and cystic mucosal hyperplasia. Computed …

Accuracy Of A Sacral Drilling With A Custom 3d Printed Drilling Guide Or Free-Hand Technique In Canine Experimental Sacroiliac Luxation, Daniel Mccarthy

LSU Master's Theses

ABSTRACT

The objective of this study was to improve the accuracy of drilling during the repair of sacroiliac luxation with a 3D-printed patient-specific drill guide (3D-GDT) compared to free-hand drilling technique (FHDT). A blinded, randomized, prospective study was performed including sixteen canine cadavers (20-25 kg) euthanized for reasons not related to the study. Dorsal, bilateral, sacroiliac luxations (SILs) were created experimentally. A pelvic CT was performed pre- and post-drilling. The FHDT was drilled followed by 3D-GDT for each sacrum. CT and 3D measurements of craniocaudal and dorsoventral angles were compared between FHDT and 3D-GDT, as well as deviations of entry …

The Role Of Serum Histones In Canine Heat Stroke, Jenna Acutt

Scripps Senior Theses

Rising temperatures all over the world has correlated with more frequent heat stroke related injuries and death. This statistic not only applies to humans, but to canines as well, who have similar body temperature thresholds. Recent studies have demonstrated that serum histones, released after cell death from heat stroke, play a role in heat stroke related injuries and death. This proposal aims to determine the severity of the effects caused by serum histone release after heat stroke by exposing selected canine cell lines to cell lysate and purified histones H2A, H2B, H3, and H4, which have been found to be …

Evaluation Of A Nutraceutical Flex Choice For Anti-Arthritic Efficacy And Safety In Moderately Osteoarthritic Dogs, Rachael E. Webber

Murray State Theses and Dissertations

Arthritis is a very common chronic debilitating disease in people and dogs alike. It does not discriminate based on species, and one in five dogs suffer from osteoarthritis. The purpose of this study was to evaluate the safety and anti-arthritic efficacy of a nutraceutical, Flex Choice, in moderately arthritic canines. Five moderately arthritic canines that weighed between 40-65 pounds were selected for this study. Moderate arthritis was considered a ranking of 4-6 on a scale of 1-10 with 1 being no/minimal pain and 10 being severe and constant pain. All five canines were orally administered one Flex Choice soft chew …

The Effects Of Reward-Based Training On The Behavioral Assessment Of The Domestic Dog, Shelby Vandergraff, Shelby K. Vandergraff

Murray State Theses and Dissertations

Contrary to popular belief, pet overpopulation is caused more by owners failing to keep their dog than with accidental or intentional breeding (Moulton et al., 1991). Factors related to relinquishment have been researched, and concluded that behavioral problems are the most reoccurring reasons observed (Bailey, 1992; Miller at al., 1996; Patronek et al., 1996; Serpell, 1966; Salman et al., 1998, 2000; Scarlett et al, 1999; New et al., 2000; Shore et al., 2003, 2005; Mondelli 2004, Blackwell et al., 2008). When animals are relinquished to the shelter, the likelihood of the animal being euthanized increases. The purpose of this research …

Clinical Study Of Canine Tear Lacritin As A Treatment For Dry Eye, Katherine E. Kelly

Senior Honors Projects, 2010-2019

Keratoconjunctivitis sicca (KCS), the deficiency of tears also known as dry eye, is a prevalent disease that affects both humans and canines. The current treatment for dye eye, cyclosporine (Restatis®), only provides temporary relief, is often associated with discomfort and is inconsistently effective. Lacritin is a naturally occurring tear glycoprotein secreted from the human and canine lacrimal glands. It has been shown that lacritin stimulates basal tearing in rabbits when applied topically. This study characterized the amount and form of lacritin found in the tears of dogs with healthy and dry eyes—information which may be applied to the development of …

Molecular Mechanisms Of Suberoylanilide Hydroxamic Acid In The Inhibition Of Tgf-Β1-Mediated Canine Corneal Fibrosis, Kristina M. Gronkiewicz, Elizabeth A. Giuliano, Ajay Sharma, Rajiv R. Mohan

Pharmacy Faculty Articles and Research

Objective—To investigate molecular mechanisms mediating anti-fibrotic effect of SAHA in the canine cornea using an in vitro model. We hypothesized that SAHA attenuates corneal fibrosis by modulating Smad-dependent and, to a lesser extent, Smad-independent signaling pathways activated by TGF-β1, as well as matrix metalloproteinase (MMP) activity.

Methods—Cultured canine corneal fibroblasts (CCF) were incubated in the presence/absence of TGF-β1 (5ng/ml) and SAHA (2.5μM) for 24hrs. Western blot analysis was used to quantify non-phosphorylated and phosphorylated isoforms of Smad2/3, p38 MAP kinase (MAPK), ERK1/2 and JNK1. Real-time PCR and zymography were utilized to quantify MMP1, MMP2, MMP8 and MMP9 mRNA expression and …