Resident Selection Criteria in Veterinary Medicine.

With the continued rise of interest and need for veterinary specialists, information regarding optimal selection criteria for successful residency candidates has been lacking in veterinary medicine. A 28-question online survey was developed to determine prioritized resident selection criteria, the importance of formal interviews, and residency supervisor satisfaction with the current selection process. This survey was sent to all programs listed by the Veterinary Internship and Residency Matching Program (VIRMP) for the 2019-2020 program year. Overall, the most important aspects of the residency application process were (1) letters of recommendation, (2) performance during the interview, (3) personal contact/recommendation from a colleague, (4) personal statement, and (5) demonstrated interest in the residency specialty. While measures of academic performance including GPA and veterinary class rank may play a role in sorting of candidates in more competitive specialties, this does not necessarily exclude them from the ranking process. This information should be helpful to candidates and program directors alike in understanding the success of the current residency candidate selection process.

Examination of Motivational Influences on Clinical-Year Veterinary Students' Career Decisions.

The purpose of this study was to identify motivations for fourth-year veterinary students to choose future career paths based on post-graduation employment or post-graduation education. Approximately 500 students from four institutions were invited to participate in an online survey. Surveys were based on the cognitive evaluation theory, a minitheory within the self-determination macrotheory framework developed by Deci and Ryan. Intrinsic motivational factors were categorized by autonomy, competence, and relatedness, and extrinsic motivators were categorized by environmental and interpersonal factors. Students pursuing post-graduation education have intrinsic motivators that aligned with competence and were extrinsically motivated by a mentor, while students interested in post-graduation employment had intrinsic motivators that were more focused on autonomy with extrinsic motivational influences of debt/finances and geographic location.

In vitro evaluation of canine whole blood with the addition of Crotalus atrox (Western Diamondback Rattlesnake) venom and antivenom using thromboelastography.

OBJECTIVES: To compare the efficacy of 2 equine-origin antivenom products on correction of coagulation abnormalities noted on thromboelastography (TEG) caused by Crotalus atrox venom in vitro. DESIGN: Prospective in vitro controlled study. SETTING: Veterinary teaching hospital. ANIMALS: Six healthy dogs. INTERVENTIONS: Blood from each dog was used for 4 separate kaolin-activated TEG analyses: A negative control (blood-saline) and positive control (blood-Crotalus atrox venom) were used to assess the dog's normal coagulation and the effect of venom on TEG parameters. Thromboelastographic analyses were then run with blood, venom, and either Argentinian or North American antivenom. All TEG analyses from each dog were compared for efficacy. MEASUREMENTS AND MAIN RESULTS: The mean R values between the North American antivenom and negative controls were not significantly different (P = 0.681), but were significantly different (P = 0.024) between the Argentinian antivenom and negative controls. The mean fibrinolysis values measured 30 minutes after maximum amplitude achieved between the North American antivenom and negative controls were not significantly different (P = 0.198), but were significantly different (P < 0.001) between the Argentinian antivenom and negative controls. The mean K values between the Argentinian antivenom and negative controls were not significantly different (P = 0.274), but were significantly different (P = 0.043) between the North American antivenom and negative controls. CONCLUSIONS: The North American antivenom normalized time to clot formation and fibrinolysis, while the Argentinian antivenom normalized rate of clot formation. Further studies in naturally envenomated patients are necessary to determine if these in vitro results would translate into different clinical outcomes.

Full-Time Employment or Post-Graduate Education: A Means-Ends Investigation of Fourth-Year Veterinary Students.

The purpose of this article is to identify the motivations for fourth-year veterinary students to pursue either full-time employment or post-graduate education. Twenty-one fourth-year veterinary students were interviewed using a means-ends investigation style. Interviews were analyzed using a qualitative method in the context of the self-determination theory pillars of intrinsic motivation (autonomy, competence, and relatedness). Students interested in full-time employment had more statements that were categorized as demonstrating an interest in autonomy. Students who were interested in post-graduate education had more statements that were categorized as demonstrating an interest in developing competence. Both groups of students indicated that relatedness was important. Understanding the beliefs and motivations that influence students' post-graduation career decisions is important in framing their decision-making process.

Dynamic viscoelastic coagulometry of blood obtained from healthy chickens.

OBJECTIVE: To assess feasibility of the use of a dynamic viscoelastic coagulometer on chicken blood and compare coagulation variables for fresh whole blood and sodium citrate-preserved whole blood as well as effects of 3 coagulation activators on blood from chickens. SAMPLE: Blood samples from 30 hens. PROCEDURES: Chickens were allowed to rest undisturbed for 1 hour. A blood sample was collected from an ulnar vein; 1.4 mL was analyzed immediately, and 1.8 mL was mixed with sodium citrate and subsequently recalcified and analyzed. A separate coagulation activator (glass beads, kaolin clay, or tissue factor) was in each of the 2 channels of the analyzer. Chickens were allowed a 1-hour rest period, and another blood sample was collected from the contralateral ulnar vein; it was processed in the same manner as for the first sample, except both channels of the analyzer contained the same coagulation activator. RESULTS: Compared with fresh samples, citrated samples had higher values for activated clotting time and platelet function and lower clotting rates. Intra-assay coefficients of variation of coagulation profiles for citrated samples were markedly greater than the limit of 10%, whereas values for fresh samples were close to or < 10%. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggested that use of a dynamic viscoelastic coagulometer on chicken blood was feasible and that analysis of fresh whole blood from healthy chickens provided results with less variability than did analysis of citrated blood. Samples preserved with sodium citrate were associated with significant relative hypocoagulability, compared with results for fresh blood.

Comparison of methohexital and propofol as induction agents for evaluation of laryngeal function in healthy dogs.

OBJECTIVE: To determine the influence of propofol or methohexital, with and without doxapram, on the examination of laryngeal function in dogs. STUDY DESIGN: Experimental study. ANIMALS: Forty healthy dogs randomly assigned to 4 groups: propofol with saline (n = 10), propofol with doxapram (n = 10), methohexital with saline (n = 10), or methohexital with doxapram (n = 10). METHODS: Propofol and methohexital were administered to effect. Investigators examined laryngeal function (initial) simultaneously with video laryngoscopy. Doxapram or saline was administered, and laryngeal function was reevaluated (second). Laryngeal motion, quality of laryngeal exposure, and the degree of swallowing, laryngospasm, and jaw tone were scored at each evaluation. Adverse events were recorded. Initial and second videos were evaluated by a masked observer, and still images obtained from both evaluations were evaluated for change in rima glottidis size by 2 masked observers. RESULTS: Administration of doxapram and saline was delayed with propofol (P = .001). Laryngeal function did not differ between dogs receiving propofol or methohexital, irrespective of doxapram administration. Doxapram improved breathing scores in both groups (P < .001). Jaw tone increased with propofol during the second evaluation (P = .049). Swallowing was more prevalent at initial examination (P = .020). Methohexital resulted in an increased heart rate (P < .001) compared with propofol. Twenty-five percent of dogs receiving methohexital developed seizure-like activity (n = 5/20). CONCLUSION: Evaluation of laryngeal function did not differ between healthy dogs anesthetized with propofol or methohexital. Methohexital provided shorter examination times with less jaw tone but was associated with adverse events. CLINICAL SIGNIFICANCE: This study provides evidence to recommend propofol over methohexital as an induction agent for laryngeal function examination.

Complex mammary carcinoma with metastases to lymph nodes, subcutaneous tissue, and multiple joints in a dog.

An 8-year-old, intact female, mixed-breed dog presented to the Oklahoma State University Boren Veterinary Medical Teaching Hospital for evaluation of progressive lameness and joint effusion of multiple joints. Physical examination revealed joint effusion of the elbow, hock, and stifle joints bilaterally, enlarged left axillary and right popliteal lymph nodes, a subcutaneous mass over the left elbow, and a subcutaneous mass involving the left second and third mammary glands. Cytologic examination of the mammary mass, enlarged lymph nodes, and joint fluid from most affected joints revealed a monomorphic population of loosely cohesive neoplastic epithelial cells. The patient was humanely euthanized, and subsequent necropsy with histopathologic examination revealed a complex mammary carcinoma with metastases to enlarged lymph nodes, subcutaneous tissue over the left elbow, and the synovium of multiple joints. Immunohistochemical stains were performed and showed diffusely positive pan cytokeratin, CK8/18, and CK19 staining in the neoplastic luminal epithelial cells of the mammary carcinoma, synovium, and lymph nodes, and showed diffusely positive vimentin staining of the myoepithelial cells. Myoepithelial calponin positivity was diffuse in the mammary mass and lymph nodes but minimal in the synovium. Only the mammary mass showed p63 positivity. Metastatic mammary neoplasia is relatively common in dogs; however, metastasis to the synovium has only been reported once previously in the literature. This is the first case utilizing immunohistochemistry for confirmation and characterization of metastases.

Acute and chronic effects of tepoxalin on kidney function in dogs with chronic kidney disease and osteoarthritis.

OBJECTIVE: To determine whether tepoxalin alters kidney function in dogs with chronic kidney disease (CKD). ANIMALS: 16 dogs with CKD (International Renal Interest Society stage 2 or 3) and osteoarthritis. PROCEDURES: Kidney function was assessed via serum biochemical analysis, urinalysis, urine protein-to-creatinine concentration ratio, urine γ-glutamyl transpeptidase-to-creatinine concentration ratio, iohexol plasma clearance, and indirect blood pressure measurement twice before treatment. Dogs received tepoxalin (10 mg/kg, PO, q 24 h) for 28 days (acute phase; n = 16) and an additional 6 months (chronic phase; 10). Recheck examinations were performed weekly (acute phase) and at 1, 3, and 6 months (chronic phase). Kidney function variables were analyzed via repeated-measures ANOVA. RESULTS: There was no difference over time for any variables in dogs completing both phases of the study. Adverse drug events (ADEs) resulting in discontinuation of tepoxalin administration included increased serum creatinine concentration (1 dog; week 1), collapse (1 dog; week 1), increased liver enzyme activities (1 dog; week 4), vomiting and diarrhea (1 dog; week 8), hematochezia (1 dog; week 24), and gastrointestinal ulceration or perforation (1 dog; week 26). Preexisting medical conditions and concomitant drug use may have contributed to ADEs. Kidney function was not affected in the latter 5 dogs. Discontinuation of tepoxalin administration stabilized kidney function in the former dog and resolved the ADEs in 4 of the 5 latter dogs. CONCLUSIONS AND CLINICAL RELEVANCE: Tepoxalin may be used, with appropriate monitoring, in dogs with International Renal Interest Society stage 2 or 3 CKD and osteoarthritis.

Comparison of urine dipstick, sulfosalicylic acid, urine protein-to-creatinine ratio, and species-specific ELISA methods for detection of albumin in urine samples of cats and dogs.

OBJECTIVE: To evaluate the use of dipstick, sulfosalicylic acid (SSA), and urine protein-to-creatinine ratio (UP:C) methods for use in detection of canine and feline albuminuria. DESIGN: Evaluation study. SAMPLE POPULATION: 599 canine and 347 feline urine samples. PROCEDURES: Urine was analyzed by use of dipstick, SSA, and UP:C methods; results were compared with those for a species-specific ELISA to determine sensitivity, specificity, positive predictive value (PPV), negative predictive value, and positive and negative likelihood ratios. RESULTS: Positive results for dipstick and SSA tests (trace reaction or greater) in canine urine had moderate specificity (dipstick, 81.2%; SSA, 73.3%) and poor PPV (dipstick, 34.0%; SSA, 41.8%). Values improved when stronger positive results (>or= 2+) for the dipstick and SSA tests were compared with ELISA results (specificity, 98.9% and 99.0% for the urine dipstick and SSA tests, respectively; PPV, 90.7% and 90.2% for the dipstick and SSA tests, respectively). Data obtained for cats revealed poor specificity (dipstick, 11.0%; SSA, 25.4%) and PPV (dipstick, 55.6%; SSA, 46.9%). Values improved slightly when stronger positive test results (>or= 2+) were used (specificity, 80.0% and 94.2% for the dipstick and SSA tests, respectively; PPV, 63.5% and 65.2% for the dipstick and SSA tests, respectively). The UP:C had high specificity for albuminuria in dogs and cats (99.7% and 99.2%, respectively) but low sensitivity (28.7% and 2.0%, respectively). CONCLUSIONS AND CLINICAL RELEVANCE: Caution should be used when interpreting a positive test result of a dipstick or SSA test for canine or feline albuminuria.