RESUMEN
Distance learning is a rapidly spreading form of education worldwide and it plays a crucial role to provide access to millions of people in developing countries. However, the benefits of online learning extend far beyond and became increasingly popular also in medical schools, including veterinary medicine [1,2]. In these new teaching settings, high-quality, validated and easily accessible multimedia materials are of great importance, especially in specific fields, such as radiology, where graphic resources can greatly support learning [3]. The dataset presented along with this article reviews examples of 153 canine latero-lateral thoracic radiographic medical images taken and collected at the Small Animal Veterinary Teaching Hospital, Veterinary Sciences Research Institute, Autonomous University of Baja California. serves as a basis for teaching VHS calculation. Images on this dataset contain all relevant anatomical structures in the determination of VHS, which makes them optimal images for practice in calculating VHS and teaching this procedure. The number of cardiothoracic radiographic images presented here can be a great support in learning the calculation of VHS, especially when combined with distance competency-based educators' support. Acquired heart diseases in the dog are very common, clinical evidence of degenerative valvular disease is detected in approximately 30% of dogs aged 13 years and older [4]. The prevalence of Dilated Cardiomyopathy (DCM) is remarkably high in certain breeds, approximately 25% of Irish Wolfhounds, 33% of female Doberman Pinschers, and 50% of male Doberman Pinschers are diagnosed with DCM [5]. Thoracic radiography is a key component in cardiovascular evaluation, which is used to calculate the vertebral heart score (VHS). VHS measurement has been described as one of the most objective methods for assessing cardiomegaly in dogs. VHS, in addition to thorough patient history and physical examination, can be very efficient to raise clinical suspicion of underlying heart disease. The measurement is based on cardiac height and width and is normalized to overall body size by comparison to vertebral body length. ln addition to the initial assessment of heart size, the VHS method is also useful for monitoring changes in heart size in response to treatment or to assess the progression of cardiomegaly over time in canine patients [6]Fig. 1. Importantly, considerable breed and individual variation exist with VHS and dogs can have values that fall outside of the normal range even without any cardiac disease. Thus, while the VHS method is a very informative tool, it should not be used as the only means of diagnosing cardiac disease in any given patient [7].
RESUMEN
BACKGROUND: Peripheral parenteral nutrition (PPN) is increasingly considered as an alternative to central parenteral nutrition (CPN) given the higher cost and more frequent clinical complications associated with the latter. However, the assessment of potential risks and benefits of PPN in critically ill pediatric canine patients has not been extensively performed. In this study, we aimed to explore the effect of short-term, hypocaloric PPN on weight loss, length of hospital stay, the incidence of complications, adverse effects, and mortality in critically ill pediatric canine patients. RESULTS: Between August 2015 and August 2018, a total of 59 critically ill pediatric canine patients aged from 1 to 6 months admitted at the Veterinary Sciences Research Institute of the Autonomous University of Baja California were included in this non-randomized clinical trial. Canine pediatric patients were initially allocated to 3 groups: 11 in group 1 receiving parenteral nutrition (PN) supplementation equivalent to 40% of the resting energy requirement (RER), 12 in group 2 receiving supplementation of 50% of the RER, and 36 in group 3 receiving no PN supplementation. After establishing that there was no significant difference between 40 and 50% of PN supplementation, these groups were not separated for downstream analysis. Similar lengths of hospital stays were noted among study subjects who received PN supplementation and those who did not (4.3 ± 1.5 vs. 5.0 ± 1.5, days, p = 0.097). No metabolic-, sepsis- or phlebitis-related complications were observed in any animal in the PPN supplemented group. Higher mortality (19.4% vs. 0%, p = 0.036), and a greater percentage of weight loss (9.24% vs. 0%, p < 0.001) were observed in patients who received no supplementation. CONCLUSION: Even though short-term, hypocaloric PPN did not reduce the length of hospital stay, it was associated with lower mortality and resulted in mitigation of weight loss. In contrast to previous studies evaluating central and peripheral parenteral nutrition protocols, we observed a lower frequency of metabolic, septic, and phlebitis complications using a 40-50% parenteral nutrition treatment. The parenteral nutrition therapeutic intervention used in our study may reduce PN-related adverse effects and promote a favorable disease outcome in critically ill canine patients. Larger studies will be needed to confirm these observations.
RESUMEN
Cuatro novillos Holstein (167kg) con cánulas en rumen y duodeno proximal fueron distribuidos en un diseño Cuadro Latino 4×4 para estimar el valor alimenticio comparativo del pasto kikuyo (Pennisetum clandestinum var. Whittet) cosechado en verano e invierno con el de henos de gramínea de verano (pasto sudán; Sorgum sudanense) e invierno (ryegrass anual; Lolium multiflorum var. Oregon). Las dietas experimentales (88,4 por ciento MO, 35,5 por ciento FDN y 11,8 por ciento PC) fueron formuladas con 70 por ciento forraje y 30 por ciento suplemento. No hubo efecto de tratamientos (P>0,05) en digestión ruminal de la FDN, N, eficiencia microbial ruminal (g de NM/kg de MO fermentada), ni en eficiencia ruminal del N (N no amoniacal que entra a tracto bajo/N consumido). No hubo efecto (P>0,10) de la estación (cosecha en verano vs invierno) en la digestión ruminal y total de la MO, FDN y N en dietas con kikuyo. La digestión ruminal y total de MO, FDN y N fueron similares (P>0,10) para dietas compuestas por kikuyo y sudán. Sin embargo, la digestión ruminal y total de MO y N fue menor (19, 12 y 9 por ciento, respectivamente) para dietas con kikuyo a la observada con ryegrass (P<0,05). Las dietas con kikuyo presentaron mayor (P<0,05) proporción molar de acetato y relación acetato/propionato que con ryegrass y sudán. No hubo efecto (P>0,05) en la relación acetato-propionato. Se concluye que kikuyo tiene un valor alimenticio similar a sudán y representa una alternativa en la alimentación animal como cultivo perenne con aceptable valor nutricional durante el verano.