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1.
Am J Vet Res ; : 1-9, 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38942061

RESUMO

OBJECTIVE: Referencing growing concerns over the recruitment and retention of faculty in academic veterinary medicine, the authors hypothesized that among surveyed veterinary residents and early-career faculty, work-life balance and workplace climate and culture are stronger motivators than financial considerations, regardless of demographic factors such as gender, race/ethnicity, and area of specialization. SAMPLE: 541 participants were included in data analysis. METHODS: A mixed methods approach was utilized, incorporating both quantitative data and qualitative, free-text responses to better understand veterinary career choices by contextualizing factors associated with academic medicine. RESULTS: Factors underpinning career-related decision-making were ranked by level of importance as (1) workplace environment/culture, (2) personal well-being/work-life balance, (3) salary and bonuses, (4) geographic location, (5) facilities and resources, (6) benefits, and (7) schedule flexibility. Desires for workload balance, schedule flexibility, support from leadership, and mentorship and collaboration were among the top themes of qualitative responses for both residents and early career faculty respondents. Factors influencing career decision-making for resident and early-career faculty are varied. Workplace environment, work-life balance, and schedule flexibility are areas that academic institutions can address and continue to improve and that are likely to positively impact entry into academia and the desire to stay. CLINICAL RELEVANCE: This study sought to understand factors related to career decision-making and interest in academic veterinary medicine among residents and early-career faculty. Understanding these factors can support efforts to recruit and retain faculty in academic veterinary medicine.

2.
J Am Vet Med Assoc ; 262(8): 1124-1128, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38810662

RESUMO

A potential emerging shortage of veterinary medical educators requires the profession to acknowledge and understand the factors leading to this outcome. Expanding class sizes within existing schools and colleges of veterinary medicine and the expected expansion of new programs seeking AVMA-Council of Education accreditation have heightened the need to address an impending shortage of veterinary medical educators. A solution-oriented approach that accurately projects educator workforce needs and identifies factors contributing to the shortage requires effective collaboration across various partnering organizations to develop innovations in pedagogy and educational delivery methods. The veterinary profession must also identify and reduce disincentives that deter students and post-DVM trainees from pursuing careers in education. Finally, efforts at the state and federal level are critical to advocate for financial support and incentives for expansion of the veterinary medical educator workforce. Through these collective approaches and partnerships, the veterinary medical educator workforce can be strengthened to overcome obstacles for educating the next generation of veterinarians to meet societal needs.


Assuntos
Educação em Veterinária , Médicos Veterinários , Médicos Veterinários/provisão & distribuição , Estados Unidos , Humanos , Faculdades de Medicina Veterinária
3.
bioRxiv ; 2024 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-38370639

RESUMO

The exploration of genotypic variants impacting phenotypes is a cornerstone in genetics research. The emergence of vast collections containing deeply genotyped and phenotyped families has made it possible to pursue the search for variants associated with complex diseases. However, managing these large-scale datasets requires specialized computational tools tailored to organize and analyze the extensive data. GPF (Genotypes and Phenotypes in Families) is an open-source platform ( https://github.com/iossifovlab/gpf ) that manages genotypes and phenotypes derived from collections of families. The GPF interface allows interactive exploration of genetic variants, enrichment analysis for de novo mutations, and phenotype/genotype association tools. In addition, GPF allows researchers to share their data securely with the broader scientific community. GPF is used to disseminate two large-scale family collection datasets (SSC, SPARK) for the study of autism funded by the SFARI foundation. However, GPF is versatile and can manage genotypic data from other small or large family collections. Our GPF-SFARI GPF instance ( https://gpf.sfari.org/ ) provides protected access to comprehensive genotypic and phenotypic data for the SSC and SPARK. In addition, GPF-SFARI provides public access to an extensive collection of de novo mutations identified in individuals with autism and related disorders and to gene-level statistics of the protected datasets characterizing the genes' roles in autism. Here, we highlight the primary features of GPF within the context of GPF-SFARI.

4.
J Am Vet Med Assoc ; 262(3): 1-7, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38134457

RESUMO

OBJECTIVE: To identify the rate at which medication errors occurred over a 2-year period in a large animal veterinary teaching hospital and describe the types of errors that occurred. SAMPLE: 226 medication errors over 6,155 large animal visits occurred during the study period. Multiple errors may have affected the same patient. METHODS: Medication error reports from March 1, 2021, to March 31, 2023, were reviewed retrospectively and classified by species, type of drug, and month and day of the week the error occurred. Errors were categorized according to multiple previously developed systems to allow for comparison to other studies. RESULTS: 226 medication errors occurred over 6,155 patient visits in a 2-year period: 57.5% (130/226) were identified by a dedicated large animal pharmacist, and 64.2% (145/226) of errors were identified and corrected before reaching the patient. Prescription/medication order errors (58.4% [132/226]) occurred significantly more often than errors in medication preparation (21.7% [49/226]; P < .001) and administration (19.6%; P < .001). Antibiotics (48.7% [110/226]) and NSAIDs (17.7% [40/226]) were the drug classes most involved in errors. CLINICAL RELEVANCE: Most medication errors in this study occurred in the ordering/prescribing phase. This is similar to reports in human medicine, where standardized medication error reporting strategies exist. Developing and applying similar strategies in veterinary medicine may improve patient safety and outcome.


Assuntos
Hospitais Veterinários , Hospitais de Ensino , Animais , Humanos , Estudos Retrospectivos , Erros de Medicação/veterinária , Segurança do Paciente
5.
Resusc Plus ; 14: 100380, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37035444

RESUMO

Aim: Despite well-established protocols for cardiopulmonary resuscitation training, performance during real-life cardiac arrests can be suboptimal. Understanding personal characteristics which could influence performance of high-quality chest compressions could provide insight into the practice-performance gap. This study examined chest compression performance, while employing feedback and introducing code team sounds as an anxiety-inducing factor in registered nurses using a cardiopulmonary resuscitation training manikin. Methods: Participants included 120 registered nurses with basic life support certification randomized to one of the following groups: no feedback and no code team sounds, feedback without code team sounds, or feedback with code team sounds. Chest compression sessions occurred at baseline, 30-days and 60-days. Demographic variables and anxiety level were also collected. The primary outcome was chest compression performance, defined as average percent of time with correct rate and percent with correct depth as captured by the defibrillator. Statistical analysis included linear mixed effects analysis. Results: The effect of feedback on chest compression performance depended on the value of other parameters. The benefit of feedback on the primary outcome depended on: age, with feedback less beneficial among older participants (p = 0.0413); and time, with feedback more beneficial with repetition (p = 0.011). These interactions also affected the outcome percent of time with correct compression depth. Increased anxiety was associated with decreased percent correct compression depth (p < 0.001). Conclusion: Feedback emerged as important in determining chest compression performance. Chest compression quality was limited by the performer's age and anxiety level. Future research should focus on identifying factors related to individual characteristics which may influence chest compression performance.

6.
J Am Vet Med Assoc ; 261(3): 417-423, 2022 12 14.
Artigo em Inglês | MEDLINE | ID: mdl-36516013

RESUMO

The American Association of Veterinary Clinicians (AAVC) convened a Diversity, Equity, and Inclusivity working group in March 2021 to address the limited diversity (including but not limited to ethnic, racial, and cultural diversity) in clinical post-DVM graduate training programs and academic faculty. Concurrent with a working group formation, the AAVC developed a strategic plan. The central mission of the AAVC is to develop, support, and connect academic leaders to fuel the future of the veterinary medical profession. House officers and their training programs are central to all goals outlined in the strategic plan. Amongst other strategic goals, the working group identified best practices for intern and resident recruitment and selection. We report herein from the current health profession literature ways to identify and recruit talented, diverse candidates especially those with non-traditional (atypical) preparation and experience. We also provide recommendations on best practices for intern and resident selection. This document highlights holistic approaches, some of which are incrementally being incorporated into the Veterinary Intern Resident Matching Program application, that emphasize diversity as a selection criteria for intern and resident selection an important step towards building a more resilient and inclusive workforce. These include expanding candidate assessment beyond grades and class rank into a more standardized method for screening candidates that includes consideration of life experiences and talents outside of veterinary medicine.


Assuntos
Diversidade Cultural , Educação em Veterinária , Estados Unidos , Animais , Humanos , Recursos Humanos , Pessoal de Saúde
7.
J Vet Intern Med ; 36(4): 1466-1470, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35815912

RESUMO

BACKGROUND: The purpose of this study was to replicate in the veterinary context a BMJ study using Google to assist in diagnosis of complex cases. HYPOTHESIS/OBJECTIVES: To assess percentage of diagnoses identified using Google as a diagnostic aid in veterinary medicine. ANIMALS: None; 13 cases in cats and 17 in dogs published in JAVMA. METHODS: Cross-sectional survey of Google results from searches using keywords generated independently by a generalist and a specialist veterinarian who reviewed the published case history and diagnostic components while blind to the diagnosis. They offered diagnoses and generated up to 5 search strategies for each case. The top 30 Google results for each search were reviewed by the generalist to inform a final Google-aided diagnosis. Both veterinarians' initial diagnoses and the Google-aided diagnoses were compared with the published diagnoses. RESULTS: Google searching led to 52 diagnoses out of 60 possible. Twenty-two (42%, 95% confidence interval [95% CI] 29%-55%) Google-aided diagnoses matched the JAVMA diagnosis. This accuracy rate does not differ significantly from 58% (n = 15/26, 95% CI 38%-77%) identified in the BMJ study. Google-aided results were not statistically different from those achieved unaided by each veterinarian (33%, 95% CI 16%-50%). CONCLUSIONS AND CLINICAL IMPORTANCE: Published information found searching Google using keywords related to complicated or unusual cases could assist veterinarians to reinforce their initial diagnosis or consider other differential diagnoses. Search strategies using words representing either signs or the preliminary diagnoses can yield results useful to confirming a correct diagnosis.


Assuntos
Doenças do Gato/diagnóstico , Doenças do Cão/diagnóstico , Ferramenta de Busca , Médicos Veterinários , Medicina Veterinária/métodos , Animais , Gatos , Estudos Transversais , Diagnóstico Diferencial , Cães , Medicina Veterinária/tendências
8.
J Am Vet Med Assoc ; 260(11): 1369-1376, 2022 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-35429376

RESUMO

OBJECTIVE: To describe veterinary house officers' perceptions of dimensions of well-being during postgraduate training and to identify potential areas for targeted intervention. SAMPLE: 303 house officers. PROCEDURES: A 62-item questionnaire was generated by use of an online platform and sent to house officers at participating institutions in October 2020. Responses were analyzed for trends and associations between selected variables. RESULTS: 239 residents, 45 rotating interns, and 19 specialty interns responded to the survey. The majority of house officers felt that their training program negatively interfered with their exercise habits, diet, and social engagement. House officers reported engaging in exercise significantly less during times of clinical responsibility, averaging 1.6 exercise sessions/wk (SD ± 0.8) on clinical duty and 2.4 exercise sessions/wk (SD ± 0.9) when not on clinical duty (P < 0.001). Ninety-four percent of respondents reported experiencing some degree of anxiety regarding their physical health, and 95% of house officers reported feeling some degree of anxiety regarding their current financial situation. Overall, 47% reported that their work-life balance was unsustainable for > 1 year; there was no association between specialty and sustainability of work-life balance. Most house officers were satisfied with their current training program, level of clinical responsibility, and mentorship. CLINICAL RELEVANCE: Veterinary house officers demonstrated a poor balance between the demands of postgraduate training and maintenance of personal health. Thoughtful interventions are needed to support the well-being of veterinary house officers.


Assuntos
Condicionamento Físico Animal , Animais , Atitude do Pessoal de Saúde , Pessoal de Saúde , Humanos , Inquéritos e Questionários
9.
J Am Vet Med Assoc ; 260(6): 657-661, 2022 01 21.
Artigo em Inglês | MEDLINE | ID: mdl-35066484

RESUMO

OBJECTIVE: To analyze the readability of discharge summaries distributed to owners of pets newly diagnosed with cancer. SAMPLE: 118 discharge summaries provided to pet owners following initial consultation. PROCEDURES: A database search identified records of new patients that had been presented to the North Carolina State Veterinary Hospital medical oncology service between June 2017 and January 2019. Owner-directed portions of the summaries provided at the time of discharge were copied and pasted into a document and stripped of all identifying information. Readability of summaries was assessed with the use of 2 previously established readability calculators: the Flesch-Kincaid Grade Level (FKGL) and Flesch Reading Ease (FRE) tests. RESULTS: Mean ± SD FKGL was 11.9 ± 1.1 (median, 11.9; range, 8.6 to 15.5; target ≤ 6), and the mean ± SD FRE score was 43 ± 5.9 (median, 42.7; range, 25.5 to 58.1; target ≥ 60). There were no significant differences in FKGL or FRE scores among discharge summaries for patients with the 4 most common tumor types diagnosed or the described treatment options. Ninety-three percent (110/118) of summaries were scored as difficult or very difficult to read. CLINICAL RELEVANCE: Owner-directed written information regarding a diagnosis of cancer at a single teaching hospital exceeded readability levels recommended by the American Medical Association and NIH and was above the average reading level of most US adults. Efforts to improve readability are an important component of promoting relationship-centered care and may improve owner compliance and patient outcomes.


Assuntos
Compreensão , Neoplasias , Animais , Internet , Neoplasias/diagnóstico , Neoplasias/veterinária , North Carolina , Alta do Paciente , Estados Unidos
10.
J Vet Med Educ ; 49(4): 515-523, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34115581

RESUMO

Competency in multiple endoscopic techniques is a major goal of small animal internal medicine (SAIM) residency programs. Training relies predominantly on mentored supervision of procedures performed on patients. Supplementation of this apprenticeship model with classroom sessions and hands-on laboratories can be advantageous to trainees and patients. Few veterinary resources describe supplemental training options, and no single source exists for mentors to consult for program development. The purpose of this study was to describe the supplemental training opportunities currently available to SAIM residents at academic hospitals in the US and Canada and to compare their timing during the residency, resident and faculty time commitment, and perceived helpfulness. Data were collected by an electronic survey distributed to one faculty member per institution. The response rate was 80% (24/30). Most programs (22/24; 92%) offered some form of supplemental training, including classroom sessions (9/24) and hands-on laboratories using physical models (7/24), virtual reality simulators (2/24), and cadaver (2/24) and anesthetized (2/24) dogs. Fifteen programs provided residents with the opportunity to attend external endoscopy workshops. Only three programs required any training prior to residents performing procedures on patients. There was considerable variability in training between programs, precluding statistical comparisons. The survey identified topics for classroom sessions and several inexpensive physical models, rated very or extremely helpful, that would be suitable for programs with limited budgets. A human-based virtual reality simulator was also rated highly by two programs. Comprehensive, external workshops evoked numerous positive comments with perceived value ranging from somewhat to extremely helpful.


Assuntos
Educação em Veterinária , Internato e Residência , Realidade Virtual , Animais , Competência Clínica , Cães , Endoscopia/educação , Endoscopia/veterinária , Humanos
11.
Commun Biol ; 4(1): 1026, 2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-34471188

RESUMO

Autism arises in high and low-risk families. De novo mutation contributes to autism incidence in low-risk families as there is a higher incidence in the affected of the simplex families than in their unaffected siblings. But the extent of contribution in low-risk families cannot be determined solely from simplex families as they are a mixture of low and high-risk. The rate of de novo mutation in nearly pure populations of high-risk families, the multiplex families, has not previously been rigorously determined. Moreover, rates of de novo mutation have been underestimated from studies based on low resolution microarrays and whole exome sequencing. Here we report on findings from whole genome sequence (WGS) of both simplex families from the Simons Simplex Collection (SSC) and multiplex families from the Autism Genetic Resource Exchange (AGRE). After removing the multiplex samples with excessive cell-line genetic drift, we find that the contribution of de novo mutation in multiplex is significantly smaller than the contribution in simplex. We use WGS to provide high resolution CNV profiles and to analyze more than coding regions, and revise upward the rate in simplex autism due to an excess of de novo events targeting introns. Based on this study, we now estimate that de novo events contribute to 52-67% of cases of autism arising from low risk families, and 30-39% of cases of all autism.


Assuntos
Transtorno Autístico/epidemiologia , Predisposição Genética para Doença/genética , Mutação , Adulto , Transtorno do Espectro Autista , Transtorno Autístico/genética , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , New York/epidemiologia , Fatores de Risco , Adulto Jovem
12.
Front Vet Sci ; 8: 638764, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33791353

RESUMO

This study assessed the fidelity of an existing questionnaire regarding attitudes toward safety culture in an academic veterinary hospital setting and gathered baseline data on these attitudes in a local population. A cross-sectional study design was used to evaluate perceptions held by veterinary teaching hospital employees. An established veterinary safety culture survey was modified and administered as a confidential online survey to faculty, house officers, and professional staff of a veterinary teaching hospital in the United States. Confirmatory and exploratory factor analysis were conducted to compare the adapted survey to the established version. Descriptive statistics were used to characterize baseline safety culture. The adapted survey exhibited factor groupings that were mostly in agreement with, but slightly different from, the original instrument. In general, survey respondents outlined positive attitudes toward the various domains of safety culture, though we identified opportunities for improvement in some areas. An adapted veterinary safety culture survey can be applied to a veterinary teaching hospital in the United States to assess baseline data surrounding the culture of safety and to identify opportunities for focused improvement efforts.

13.
Cureus ; 13(1): e12603, 2021 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-33585093

RESUMO

Macular hole formation is a rare complication of laser peripheral iridotomy (LPI) and may cause permanent scotomas. This case describes macular hole formation after 2.8 mJ Nd:YAG laser energy application in a patient with vitreomacular attachment. A literature review of a limited number of case reports shows that older patients who developed holes after LPI had more visually-significant and advanced stage holes that required surgical retinal repair, whereas younger patients had less visually-significant and mild stage holes with a spontaneous resolution on optical coherence tomography (OCT).

14.
Nurse Lead ; 19(2): 165-169, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32837354

RESUMO

This study evaluated nurses' perceptions of a rapidly deployed critical care education program conducted to prepare a community hospital for its transformation to a COVID-19 treatment center. The education included a traditional didactic approach and incorporated experienced nursing support staff at the bedside. Nurses were interviewed about the strengths and weaknesses of the program, and for their perceptions of the additional clinical support. A distributed learning model with small groups attending multiple trainings could have improved the didactic session. However, there was positive feedback about the use of a "buddy" system and critical care education specialist in the intensive care unit setting.

15.
Retin Cases Brief Rep ; 15(2): 101-103, 2021 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-30028789

RESUMO

PURPOSE: To illustrate a potentially concerning artifact on Optos wide-angle imaging. METHODS: Case report. RESULTS: A healthy 11-year-old girl, with no medical history, was found to have a lightly pigmented superotemporal choroidal tumor, suspicious for melanoma, which was detected on Optos wide-angle imaging by her optometrist. On referral to the retinal specialist, the mass was not visible on funduscopy. B-scan ultrasonography depicted flat retina and no visible mass. Review of the Optos image revealed that the pseudomelanoma represented the patient's nose. CONCLUSION: Optos wide-angle imaging provides broad retinal imaging; however, artifacts from patient positioning can lead to the nose artifact.


Assuntos
Artefatos , Neoplasias da Coroide/diagnóstico , Melanoma/diagnóstico , Nariz , Oftalmoscopia/métodos , Criança , Feminino , Angiofluoresceinografia , Humanos
18.
Am J Ophthalmol ; 191: 83-91, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29684329

RESUMO

PURPOSE: To determine monitoring and treatment patterns and vision outcomes in real-world patients initiating anti-vascular endothelial growth factor (anti-VEGF) therapy for diabetic macular edema (DME). DESIGN: Retrospective interventional cohort study. METHODS: Setting: Electronic medical record analysis of Geisinger Health System data. STUDY POPULATION: A total of 110 patients (121 study eyes) initiating intravitreal ranibizumab or bevacizumab for DME during January 2007‒May 2012, with baseline corrected visual acuity of 20/40 to 20/320, and ≥1 ophthalmologist visit during follow-up. MAIN OUTCOME MEASURES: Intravitreal injections per study eye during the first 12 months; corrected visual acuity, change in corrected visual acuity from baseline, proportions of eyes with ≥10 or ≥15 approximate Early Treatment Diabetic Retinopathy Study letter gain/loss at 12 months; number of ophthalmologist visits. RESULTS: Over 12 months, mean number of ophthalmologist visits was 9.2; mean number of intravitreal injections was 3.1 (range, 1-12), with most eyes (68.6%) receiving ≤3 injections. At 12 months, mean corrected visual acuity change was +4.7 letters (mean 56.9 letters at baseline); proportions of eyes gaining ≥10 or ≥15 letters were 31.4% and 24.0%, respectively; proportions of eyes losing ≥10 or ≥15 letters were 10.8% and 8.3%, respectively. Eyes receiving adjunctive laser during the first 6 months (n = 33) showed similar change in corrected visual acuity to non-laser-treated eyes (n = 88) (+3.1 vs +5.3 letters at 12 months). CONCLUSIONS: DME patients receiving anti-VEGF therapy in clinical practice undergo less frequent monitoring and intravitreal injections, and achieve inferior vision outcomes to patients in landmark clinical trials.


Assuntos
Bevacizumab/administração & dosagem , Retinopatia Diabética/tratamento farmacológico , Edema Macular/tratamento farmacológico , Ranibizumab/administração & dosagem , Acuidade Visual , Idoso , Inibidores da Angiogênese/administração & dosagem , Retinopatia Diabética/complicações , Retinopatia Diabética/diagnóstico , Feminino , Seguimentos , Humanos , Injeções Intravítreas , Edema Macular/diagnóstico , Edema Macular/etiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Tomografia de Coerência Óptica , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores
19.
Vet Surg ; 47(3): 327-332, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29457248

RESUMO

To ensure patient safety and protect the well-being of interns and residents, the Accreditation Council for Graduate Medical Education (ACGME) issued guidelines in 2003 limiting the working hours of physician trainees. Although many supported the goals of the ACGME, institutions struggled to restructure their programs and hire staff required by this unfunded mandate. Numerous studies have analyzed the effects of duty hours restrictions on patient outcomes and physician training over the past 15 years. Most agree that duty hours restrictions improved well-being of house officers, but these improvements came at the expense of continuity, and patient hand-offs led to medical errors. Effects on resident training are program specific, with duty hours restrictions having the most deleterious effects on surgical disciplines. Because veterinary specialists assume a similar role in providing 24-hour patient care, interns and residents face work-related stress as a result of extended working hours, on-call duty, and an increasingly complex caseload. The North Carolina State Veterinary Hospital is staffed by approximately 100 house officers representing almost every veterinary specialty group. We surveyed departing house officers regarding their quality of life and training experience. Sixty-six percent of interns and residents reported that they do not have time to take care of personal needs, and 57%-62% felt neutral or dissatisfied with their mental and physical well-being. Most trainees believed that decreased duty hours would improve learning, but 42% believed that decreased caseload would be detrimental to training. Veterinary educators must consider post-DVM veterinary training guidelines that maintain patient care with a good learning environment for interns and residents.


Assuntos
Educação em Veterinária , Internato e Residência , Admissão e Escalonamento de Pessoal , Tolerância ao Trabalho Programado , Acreditação , Educação em Veterinária/ética , Humanos , Internato e Residência/ética , North Carolina , Admissão e Escalonamento de Pessoal/ética , Qualidade de Vida , Inquéritos e Questionários , Medicina Veterinária/ética
20.
J Vet Emerg Crit Care (San Antonio) ; 27(1): 71-81, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27732770

RESUMO

OBJECTIVE: To characterize the correlation between thromboelastography (TEG) variables using strong activators and anti-Xa (AXa) activity in healthy dogs administered subcutaneous unfractionated heparin (UFH). DESIGN: Prospective experimental study. SETTING: University research facility. ANIMALS: Eight adult random-source male dogs. INTERVENTION: Dogs were randomized to receive subcutaneous UFH at 200, 250, or 300 IU/kg every 8 hours for a total of 10 injections. Blood samples were collected at time 0 (preheparin) and 3, 6, and 8 hours after the 1st (Day 1) and 10th (Day 4) UFH injection.  After the 8-hour blood sample was obtained on day 4, a 100 IU/kg IV bolus of UFH was administered and an additional blood sample was collected 1 hour later (hour 9). AXa activity, activated partial thromboplastin time (aPTT), and TEG (with up to 5 activators) were performed at each time point.  Modes of activation for TEG included  recalcified (Ca), Ca with heparinase (CaH), CaH and tissue factor 1:3600 (CTF3600H), Ca with tissue factor 1:100 (CTF100), and RapidTEG. Spearman rank correlations were calculated for each of the aforementioned parameters and the AXa activity. P-values were corrected for multiple comparisons with a Bonferroni correction. MEASUREMENTS AND MAIN RESULTS: Significant correlations were found between AXa activity and the TEG R values generated with CTF100 (R = 0.83, P ≤ 0.0001) and RapidTEG (R = 0.90, P < 0.0001), as well as both forms of aPTT measurement (R = 0.86 and 0.84, P < 0.0001). CONCLUSIONS: This study demonstrates that TEG variables derived using robust activation correlate with AXa activity as well as aPTT and have the potential to be used for monitoring UFH therapy in healthy dogs.  Future studies are warranted to evaluate its diagnostic utility in critically ill animals.


Assuntos
Anticoagulantes/farmacologia , Coagulação Sanguínea/efeitos dos fármacos , Heparina/farmacologia , Animais , Anticoagulantes/administração & dosagem , Cães , Feminino , Heparina/administração & dosagem , Injeções Subcutâneas/veterinária , Masculino , Tempo de Tromboplastina Parcial/veterinária , Estudos Prospectivos , Valores de Referência , Tromboelastografia/veterinária
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