@article{hepworth-warren_young_armwood_roessner_veerasammy_2024, title={Concurrent Streptococcus equi subsp. equi infection, purpura haemorrhagica and immune-mediated myositis in a Quarter Horse filly}, volume={2}, ISSN={["2042-3292"]}, DOI={10.1111/eve.13954}, abstractNote={This report describes a 2‐year‐old Quarter Horse filly that was diagnosed with concurrent Streptococcus equi subsp. equi infection, purpura haemorrhagica, and immune‐mediated myositis. The filly was presented for evaluation of fever of unknown origin, rapid weight loss and inappetence after exposure to strangles that was initially unknown. Over the course of hospitalisation the filly developed mandibular lymphadenopathy, guttural pouch empyema, and mucosal petechiation and ecchymoses. The presence of Streptococcus equi subsp. equi was confirmed via PCR and culture of a lymph node aspirate and biopsies of the skin confirmed leukocytoclastic vasculitis, consistent with purpura haemorrhagica. Genetic testing confirmed that the filly had one copy of the MYH1 mutation (N/My). Following therapy with systemic corticosteroids, plasma transfusion and antimicrobial therapy the filly improved and was discharged. Communication with the owner 11 months later confirmed that filly appeared healthy but remained poorly muscled. This report is the first to the authors' knowledge describing concurrent Streptococcus equi subsp. equi infection, purpura haemorrhagica, and immune‐mediated myositis.}, journal={EQUINE VETERINARY EDUCATION}, author={Hepworth-Warren, Kate L. and Young, Kimberly A. S. and Armwood, Abigail and Roessner, Holly and Veerasammy, Brittany}, year={2024}, month={Feb} }
 @article{souza teixeira campos_barrantes murillo_roessner_ruff_negrao watanabe_2022, title={Pathology in Practice}, volume={260}, ISSN={["1943-569X"]}, DOI={10.2460/javma.22.03.0100}, number={11}, journal={JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION}, author={Souza Teixeira Campos, Maria Eduarda and Barrantes Murillo, Daniel Felipe and Roessner, Holly and Ruff, Jennifer and Negrao Watanabe, Tatiane Terumi}, year={2022}, month={Aug}, pages={1305–1307} }
 @article{roessner_hurcombe_klein_hopster_engiles_2021, title={Comparison of one‐layer Utrecht pattern with two‐layer (simple continuous/Cushing) pattern for jejunojejunostomy in healthy horses in vivo}, url={https://doi.org/10.1111/vsu.13679}, DOI={10.1111/vsu.13679}, abstractNote={OBJECTIVE
To compare end-to-end jejunal anastomoses with a one-layer (Utrecht) and two-layer (simple continuous/Cushing) patterns.


STUDY DESIGN
Experimental study.


ANIMALS
Eight healthy adult horses.


METHODS
Jejunal end-to-end anastomoses were performed in randomly assigned one-layer or two-layer patterns. Horses were recovered from surgery and monitored for complications. At 14 days, the opposite pattern was performed (cross-over design) prior to euthanasia. Duration of closures was compared between patterns. Serosal width was measured before harvesting anastomotic sites from the first procedure. Luminal diameter was measured, and sections were collected for histological evaluation of heating after routine and immunohistochemical staining.


RESULTS
One-layer closure was faster (716 ± 86 s) than two-layer closures (1136 ± 111 s). Postoperative complications were minimal. No difference was detected in lumen size between groups. The lumen was reduced by 18% after one-layer and 15% after two-layer closures (p = .34). Serosal adhesions to the mesentery without clinical evidence of obstruction were observed in two horses with two-layer closure. Histopathological scores for inflammation, infection, and healing did not differ between groups.


CONCLUSION
Jejunal anastomosis with one-layer Utrecht technique was about 7 min faster and led to similar luminal reduction and histological healing scores as two-layer jejunojejunostomies.


CLINICAL SIGNIFICANCE
The outcomes of one-layer Utrecht jejunojejunostomies in healthy horses justify clinical evaluation of this technique.}, journal={Veterinary Surgery}, author={Roessner, Holly A. and Hurcombe, Samuel D. and Klein, Chelsea E. and Hopster, Klaus and Engiles, Julie B.}, year={2021}, month={Oct} }
 @article{hurcombe_klein_roessner_engiles_hopster_2021, title={Use of polyamide cable ties during experimental omentectomy in adult horses with histopathological assessment}, url={https://doi.org/10.1111/vsu.13644}, DOI={10.1111/vsu.13644}, abstractNote={OBJECTIVE
To report the use of nylon cable ties (NCT) for omentectomy in the horse.


STUDY DESIGN
Experimental study.


ANIMALS
Eight healthy adult horses.


METHODS
Horses underwent nylon cable tie (NCT) ligation of the greater omentum after ventral midline celiotomy. The time required to complete the omentectomy was recorded. Horses were recovered for 14 days before repeat celiotomy, adhesions assessment, and histological examination of the omentectomy site using a proposed histologic grading scheme. The total time for omentectomy procedure and histologic score was assessed for normality. Data are expressed as mean ± standard deviation.


RESULTS
NCT ligation provided sufficient hemostasis to complete the omentectomy (28 ± 15 s), without rescue ligation. No gross evidence of intra-abdominal adhesion or morbidity was associated with the omentectomy site 14 days after surgery. NCT were intact at the site of application, covered with smooth fibrous connective tissue. Adiponecrosis with minimal inflammation and fibrovascular occlusion of omental vessels was present at the surgical site. Mild inflammation was present at the NCT-tissue interface.


CONCLUSION
The use of NCT resulted in fast and effective omentectomy in healthy horses without short-term evidence of inflammatory reaction or intra-abdominal adhesion.


CLINICAL SIGNIFICANCE
The described technique provides an alternative for omentectomy in healthy adult horses.}, journal={Veterinary Surgery}, author={Hurcombe, Samuel D. and Klein, Chelsea E. and Roessner, Holly A. and Engiles, Julie B. and Hopster, Klaus}, year={2021}, month={Aug} }