UCVM Research Weekly Summary
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Teaching Clinical Competency: Evaluating POCUS‑Guided Versus Landmark Techniques for Thoracostomy Tube Placement in Canine Cadavers by Veterinary Students — Journal of Veterinary Emergency and Critical Care (2026-06-12); Cohort author: Julie Menard. In a crossover randomized study with veterinary students and canine cadavers, landmark-guided SBWGTT placements were faster than POCUS-guided ones for left pleural effusion and pneumothorax (LPE 5.2±1.1 min vs UPE 7.9±2.8; LPN 4.6±1.6 min vs UPN 9.0±2.7; p ≤ 0.001–0.0083); extrapleural placements occurred (11 instances) with four intrathoracic complications in the POCUS-guided pleural effusion arm and no group differences in overall complication rates; novices reported higher confidence that SBWGTTs were within the pleural space with ultrasound guidance.
Relationship between the siring capacity of beef bulls and their behaviour in multi-sire breeding groups measured by remote monitoring technologies — Theriogenology (2026-06-12); Cohort authors: Mathieu Pruvot; Jennifer M. Pearson. Using remote monitoring on 12 bulls in 2023 and 13 in 2024, the study links behavioural metrics to weekly siring capacity (SR/week) derived from DNA parentage; time spent walking, distance travelled, and velocity were positively associated with SR/week, with stronger effects as the proportion of cows available per week decreased; time spent grazing and home-range size were negatively associated with SR/week, while in a subset, social proximity to other bulls and time near cows were positively associated with SR/week, highlighting behavioural correlates of reproductive success.
Health information dynamics and audience responses to avian influenza on YouTube: Implications for digital public health communication — PNAS Nexus (2026-06-10); Cohort author: Guillaume Lhermie. Analyzing 11,465 YouTube videos and comments from 2020–2025, video content largely conveyed factual health information aligned with updates, while comments showed substantial interpretive activity with contestation, speculation, and frames around origins, trust, and interventions; audience sentiment was predominantly negative, indicating reinterpretation that could foster ambiguity and misinformation; YouTube thus plays a dual role as information source and forum for interpretation, underscoring the need for public health authorities to design interventions that curb misinformation and promote effective protective behaviors.
By the numbers
Journal tallies: Journal of Veterinary Emergency and Critical Care — 1; Theriogenology — 1; PNAS Nexus — 1. Total works: 3.
All works in window
| Title | Journal | Date | Cohort Authors | Abstract | Congratulate |
|---|---|---|---|---|---|
| Teaching Clinical Competency: Evaluating POCUS‐Guided Versus Landmark Techniques for Thoracostomy Tube Placement in Canine Cadavers by Veterinary Students · doi/link | Journal of Veterinary Emergency and Critical Care | 2026-06-12 | Julie Menard | viewOBJECTIVE: To evaluate the effectiveness of teaching novice learners the competency of small-bore wire-guided thoracostomy tube (SBWGTT) placement using point-of-care ultrasound (POCUS)-guided and blind, landmark-guided techniques and assess the complications associated with each technique. DESIGN: Crossover randomized study. SETTING: Clinical skills teaching of second-, third-, and fourth-year veterinary students. ANIMALS: Sixteen canine cadavers of various breeds, ages, and sexes. INTERVENTIONS: Thirty second, third and fourth-year DVM students were enrolled. Online and in-person training was completed before collection of cadaver data. Each student was randomized into two of four cadaver groups: POCUS-guided (U) and landmark-guided (L) protocols for either pleural effusion (PE) or pneumothorax (PN). Students placed SBWGTTs into canine cadavers with iatrogenic pleural space pathology (10 mL/kg of air and 10 mL/kg of fluid infused into each hemithorax); results were recorded. MEASUREMENTS AND MAIN RESULTS: Placement time, confidence in SBWGTT placement and ease of placement (using weighted scales), and complications (determined by necropsy) were recorded. Data were parametric. One SBWGTT was missing at necropsy. LPE SBWGTT placement (mean ± SD: 5.2 ± 1.1 min) was faster than UPE (7.9 ± 2.8 min, p = 0.0083) and UPN placement (9.0 ± 2.7 min, p = 0.0001). LPN placement (4.6 ± 1.6 min) was faster than UPN (p < 0.0001) and UPE placement (p = 0.0009). Eleven SBWGTTs were placed extrapleurally with no difference among groups. Four UPE SBWGTTs had intrathoracic complications, which were not different between groups (p > 0.05). Novices felt more confident that SBWGTTs were within the pleural space when using POCUS: UPN (mean ± SD: 7.2 ± 2.4) versus LPN (4.4 ± 2.6, p = 0.0232); LPE (4.6 ± 2.68) versus UPE (7.1 ± 2.9, p = 0.0326). CONCLUSIONS: POCUS-guided SBWGTT placement performed by novices was slower with similar complication rates and higher confidence scores. |
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| Relationship between the siring capacity of beef bulls and their behaviour in multi-sire breeding groups measured by remote monitoring technologies · doi/link | Theriogenology | 2026-06-12 | Mathieu Pruvot, Jennifer M. Pearson | viewThe objective was to investigate the relationship between siring capacity and behavioural metrics of beef bulls in multi-sire groups during the breeding season, using remote monitoring technologies (RMT). Behavioural metrics from 12 bulls in 2023 and 13 bulls in 2024 were estimated using accelerometers, GPS, and proximity sensors. The association between behavioural metrics and siring capacity per week (SR/week, computed from DNA parentage results) was analysed using generalized mixed-effect models while accounting for candidate covariates. Several behaviours were associated with SR/week when accounted for age (P≤0.01), percentage of cows available for breeding (% cows/week, P≤0.001), and lameness status (P≤0.05), with significant interactions between behaviours and covariates. Time spent walking, distance travelled, and velocity were positively associated with SR/week (P<0.001) and moderated by % cows/week (P<0.001), with stronger positive effects as % cows/week reduced. Time spent grazing and the size of home ranges were negatively associated with SR/week (P<0.001) and moderated by % cows/week (P<0.001), with stronger negative effects as % cows/week reduced. In a subset of bulls, social selectivity and time in proximity to other bulls were positively associated with SR/week while moderated by % cows/week and lameness status, respectively (P≤0.04). Time spent in proximity to cows was positively associated with SR/week and moderated by % cows/week (P=0.002). In conclusion, several behavioural metrics associated with beef bulls’ siring capacity were identified using RMT, unveiling behavioural aspects explaining differences in reproductive success. This study addresses gaps in knowledge about bull behaviour in multi-sire breeding groups associated with their siring capacity and provides insights for remote breeding monitoring systems. |
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| Health information dynamics and audience responses to avian influenza on YouTube: Implications for digital public health communication · doi/link | PNAS Nexus | 2026-06-10 | Guillaume Lhermie | viewAbstract Effective management of infectious disease relies not only on biomedical interventions but also on the circulation and interpretation of health-related information. Narratives, whether accurate or misleading, influence public perceptions, adherence to protective measures, and policy debates, as illustrated during COVID-19, measles resurgences, and vaccine controversies. YouTube, as a global platform combining an information repository and interactive discussion space, exerts persuasive influence through its audiovisual formats. Avian influenza, a recurrent zoonotic threat with episodic media attention, provides a valuable case for analyzing evolving health narratives. We analyzed 11,465 YouTube videos and associated comments related to avian influenza published between 2020 and 2025. Thematic structures were identified using an MPNet-based topic modeling approach, and sentiment analysis was conducted with XLM-RoBERTa to assess emotional tone across content and audience interactions. Temporal patterns of narrative clusters were also examined. Video content predominantly conveyed factual health information aligned with epidemiological updates and preventive measures. In contrast, user comments displayed substantial interpretive activity, including contestation, speculation, and the adoption of controversial frames concerning virus origins, institutional trust, public health interventions, and alternative treatments. These discussions were characterized by predominantly negative sentiment, indicating that audiences frequently recontextualize online information, potentially fostering ambiguity and misinformation. YouTube serves as both a disseminator of factual health information and a forum for audience reinterpretation, highlighting the platform’s dual role in digital health communication. Understanding these dynamics is crucial for public health authorities seeking to design interventions that mitigate misinformation and promote effective protective behaviors during emerging infectious disease threats. |
Email Guillaume |