American journal of veterinary research最新文献_第5页

Identifying genetic biomarkers as early indicators of response in cancer therapy. 确定遗传生物标志物作为癌症治疗反应的早期指标。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-20 DOI: 10.2460/ajvr.25.05.0153

Alastair Cribb

引用次数: 0

Veterinary students exhibit low artificial intelligence literacy but agree it will be deployed to improve veterinary medicine. 兽医专业的学生表现出较低的人工智能素养，但他们同意人工智能将被用于提高兽医水平。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-20 DOI: 10.2460/ajvr.25.03.0082

Krystle L Reagan, Karen Boudreaux, Stefan M Keller

{"title":"Veterinary students exhibit low artificial intelligence literacy but agree it will be deployed to improve veterinary medicine.","authors":"Krystle L Reagan, Karen Boudreaux, Stefan M Keller","doi":"10.2460/ajvr.25.03.0082","DOIUrl":"10.2460/ajvr.25.03.0082","url":null,"abstract":"Objective: To determine the perceptions and self-reported knowledge base of AI and machine learning (AI/ML) among professional veterinary students.Methods: First-, second-, third-, and fourth-year professional veterinary students from the School of Veterinary Medicine at the University of California-Davis were surveyed in a cross-sectional study regarding their knowledge level, attitudes, and feelings regarding AI/ML in veterinary medicine. Responses were summarized, and descriptive statistics were performed.Results: One hundred seventy-six of 594 (29.6%) veterinary students responded to the survey. One hundred forty-one out of 176 (80%) students reported slight or no knowledge surrounding AI/ML, and 139/176 (79%) of students were moderately to extremely interested in learning about AI/ML applications in veterinary medicine. Sixty-five out of 176 (37%) students reported learning about AI/ML concepts in their veterinary curriculum. Most students expect to use these tools in their practice (104/176 [59%]) and suspect that AI/ML will improve veterinary medicine (135/176 [77%]).Conclusions: Artificial intelligence and machine learning applications in veterinary medicine are increasingly available. Professional veterinary students are eager to learn about these technologies and recognize their relevance to their future careers.Clinical relevance: Many professional veterinary programs do not provide structured AI/ML literacy training. Artificial intelligence education should be incorporated into the curriculum to ensure that future veterinarians can critically evaluate and effectively integrate AI/ML tools into clinical practice.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-6"},"PeriodicalIF":1.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144109488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Video-assisted ligamentoplasty effectively treats medial shoulder instability in dogs: a retrospective study of 6 cases. 视频辅助韧带成形术有效治疗犬肩部内侧不稳：6例回顾性研究。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-20 DOI: 10.2460/ajvr.24.12.0388

Laura Hebrard, Anne Copet, Margaux Blondel, Thibaut Cachon

{"title":"Video-assisted ligamentoplasty effectively treats medial shoulder instability in dogs: a retrospective study of 6 cases.","authors":"Laura Hebrard, Anne Copet, Margaux Blondel, Thibaut Cachon","doi":"10.2460/ajvr.24.12.0388","DOIUrl":"10.2460/ajvr.24.12.0388","url":null,"abstract":"Objective: To evaluate the clinical feasibility and efficacy of a video-assisted ligamentoplasty of the medial glenohumeral ligament for the treatment of medial shoulder joint instability in dogs.Animals: This retrospective study included 6 dogs with medial shoulder instability treated by video-assisted ligamentoplasty of the medial glenohumeral ligament. Inclusion criteria required documented medical records containing signalment, clinical history, diagnostic imaging, surgical details, and postoperative assessments, along with a minimum follow-up period of 6 months. Complications and midterm outcomes were recorded.Clinical presentation: The 6 dogs exhibited a weight-bearing lameness, and during the orthopedic examination under sedation, an abduction angle exceeding 35° was observed.Results: All joints were stabilized successfully. The abduction angle immediately after repair was 17.5 ± 1.2° and after 6 months 24.6 ± 1.8°. Postoperative shoulder stability was satisfactory, with excellent functional recovery in 5 dogs and good recovery in 1 dog. No complications occurred.Clinical relevance: Video-assisted shoulder stabilization is feasible in dogs and appears to yield satisfactory clinical results. This novel technique shows promising results and encourages the development of minimally invasive techniques for an optimal patient recovery.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-9"},"PeriodicalIF":1.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144109491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lavage with at least 2.5 mL/cm sterile saline reduces bacterial load in a subcutaneous tissue model. 用至少2.5 mL/cm无菌生理盐水灌洗可减少皮下组织模型中的细菌负荷。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-20 DOI: 10.2460/ajvr.25.01.0030

Cody B Westmoreland, Sara D Lawhon, Jing Wu, Nicholas D Jeffery, Vanna M Dickerson

{"title":"Lavage with at least 2.5 mL/cm sterile saline reduces bacterial load in a subcutaneous tissue model.","authors":"Cody B Westmoreland, Sara D Lawhon, Jing Wu, Nicholas D Jeffery, Vanna M Dickerson","doi":"10.2460/ajvr.25.01.0030","DOIUrl":"10.2460/ajvr.25.01.0030","url":null,"abstract":"Objective: To quantify the volume of lavage required to decrease the bacterial load below a standard of 105 CFUs/mL on a subcutaneous tissue model.Methods: This was a benchtop experimental study conducted between May 1, 2023, through July 31, 2023 that included 20 sterile silicone skin models with a 10-cm incision. The silicone skin model was inoculated with a 1,000-fold dilution of approximately 1.5 X 108 CFUs/mL of isolated Staphylococcus pseudintermedius or Escherichia coli. Bacterial quantification samples were taken preinoculation, 20 minutes postinoculation, and after incremental saline lavage to total a volume of 2.5, 5, and 10 mL/cm incisional length bacterial quantification.Results: For S pseudintermedius and E coli, a reduction of bacterial colonies below 105 CFUs/mL was noted in all lavage volumes, with an initial 3-log decrease from postinoculation to the 2.5 mL/cm lavage for both S pseudintermedius and E coli. Microbial growth demonstrated a 1-log reduction with increased lavage volumes from 2.5 mL/cm to 10 mL/cm for S pseudintermedius. For E coli, microbial growth demonstrated a 1-log reduction with the second lavage (total of 5 mL/cm) and a half-log reduction with the third lavage (total of 10 mL/cm).Conclusions: Surgeons should consider a minimum of 2.5 mL/cm lavage when aiming to decontaminate SC tissues in linear surgical wounds. Further work in clinical cases is required to evaluate differences in live tissue compared to this model.Clinical relevance: This work provides surgeons with a reference point for deciding what volume of lavage to use for purposes of decontaminating an SC space.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-5"},"PeriodicalIF":1.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144109481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perfect patient position is not maintained during total hip replacement in dogs using a vacuum bean bag positioner. 使用真空豆袋定位器的犬在全髋关节置换术中不能保持完美的患者位置。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-20 DOI: 10.2460/ajvr.24.12.0404

Robert J Barnett, Samuel J Tidwell, Xiaojuan Zhu, Jeffrey N Peck

{"title":"Perfect patient position is not maintained during total hip replacement in dogs using a vacuum bean bag positioner.","authors":"Robert J Barnett, Samuel J Tidwell, Xiaojuan Zhu, Jeffrey N Peck","doi":"10.2460/ajvr.24.12.0404","DOIUrl":"10.2460/ajvr.24.12.0404","url":null,"abstract":"Objective: To assess changes in patient positioning prior to acetabular cup impaction during total hip replacement (THR) procedures in dogs.Methods: In a prospective, analytical study, 26 client-owned dogs were evaluated for changes in patient positioning during THR procedures. Following initial patient positioning in true lateral recumbency, fluoroscopic measurement of changes in positioning was performed for each plane at 2 separate time points: after draping (M1) and immediately prior to cup impaction (M2).Results: Patient positioning was significantly altered at time point M1 in the transverse plane, with a mean change of 2.8° (range, 0° to 12°); this change in position was most often toward the dorsum, occurring in 16 of 26 cases (62%). Significant shifting was found at time point M2 in the transverse plane, with a mean change of 2.6° (range, 0° to 10.3°); this change, however, did not significantly correlate with a particular direction. Positioning shifts found at M1 and M2 were not consistently in the same direction in either plane. Body condition score had no effect on shifting found at M1 or M2 in either plane.Conclusions: Perfect patient positioning is not maintained with the use of bean bag positioners. Despite accurate initial positioning and the use of this positioning device, shifting does occur.Clinical relevance: Unrecognized shifts in pelvic position during THR procedures may occur, which could contribute to inappropriate implant positioning. Pelvic alignment should be evaluated during THR procedures to minimize the risk of complications.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144109485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lameness improvement in horses with distal tarsal pain after intra-articular injection of botulinum neurotoxin type A. 关节内注射A型肉毒杆菌神经毒素对跗远端疼痛马跛行的改善。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-13 DOI: 10.2460/ajvr.24.10.0294

Antônio A Beck, Letícia B Paz, Maria I Frank, Roberta C F Pereira, Flávio D De La Côrte

{"title":"Lameness improvement in horses with distal tarsal pain after intra-articular injection of botulinum neurotoxin type A.","authors":"Antônio A Beck, Letícia B Paz, Maria I Frank, Roberta C F Pereira, Flávio D De La Côrte","doi":"10.2460/ajvr.24.10.0294","DOIUrl":"https://doi.org/10.2460/ajvr.24.10.0294","url":null,"abstract":"Objective: To evaluate the effect of IA injections of botulinum toxin type A (BoNT-A) in horses with chronic, naturally occurring distal tarsal osteoarthritis.Methods: 9 horses were selected after physical and radiographic assessments. Horses also underwent an objective lameness examination and were included if they had a hindlimb impact lameness (Pmin ≥ 3 mm), which positively responded (≥ 50%) to the tarsometatarsal and centrodistal joints' anesthetic block. Horses randomly received an intra-articular injection of BoNT-A or an equivalent volume of saline solution. Horses were reevaluated at postinjection days (PIDs) 1, 7, 15, 30, 60, 90, 120, 150, and 180. Success criteria included a decrease in Pmin (≤ 3 mm) or an abolishment of lameness on the baseline lame limb with lameness shifting to the contralateral limb. A percentage of lameness improvement was calculated for all horses at all timepoints.Results: 5 horses were included in the BoNT-A group, whereas 4 individuals were allocated in the placebo group. A significant improvement (P < .05) was observed in horses from the BoNT-A group when compared to placebo at PIDs 90, 120, 150, and 180. Two of 5 horses (40%) from the BoNT-A group had an absolute improvement (100%) in lameness at all the timepoints. Higher percentages of lameness improvement were observed at PID 60.Conclusions: The results of this study suggest that the intra-articular injection with 50 U of BoNT-A was effective in reducing lameness in horses with distal tarsal osteoarthritis, mainly 90 days after injection.Clinical relevance: Botulinum toxin type A can be considered as an option for managing horses with chronic osteoarthritis.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-7"},"PeriodicalIF":1.3,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrahigh-molecular-weight polyethylene implant improves biomechanical properties for patellar ligament repair in dogs: an ex vivo randomized study. 超高分子量聚乙烯植入物改善犬髌骨韧带修复的生物力学性能：一项离体随机研究。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-06 DOI: 10.2460/ajvr.25.03.0087

Romain Lamère, Maxime Guillet, Stefano Scotti, Chantal Ragetly, Thibaut Cachon

{"title":"Ultrahigh-molecular-weight polyethylene implant improves biomechanical properties for patellar ligament repair in dogs: an ex vivo randomized study.","authors":"Romain Lamère, Maxime Guillet, Stefano Scotti, Chantal Ragetly, Thibaut Cachon","doi":"10.2460/ajvr.25.03.0087","DOIUrl":"https://doi.org/10.2460/ajvr.25.03.0087","url":null,"abstract":"Objective: To assess the biomechanical properties and failure mode of 3 different repair methods in simulated midsubstance canine patella ligament rupture on cadavers.Methods: The sample was paired hindlimbs of 9 adult mixed-breed dogs. The study design was an experimental study on cadavers. Patellar ligaments were transected and sutured using a Bunnell and simple interrupted epitendinous pattern. They were then randomly reinforced with 1 of 3 techniques: a circumpatellar suture loop anchored distally to the tibial tuberosity (group 1), the same loop combined with a fascia lata strip (group 2), or a polyethylene synthetic implant sutured over the patella proximally and secured distally with an interference screw (group 3). Yield, peak, and failure load, stiffness, and mode of failure were evaluated.Results: Six hindlimbs were assigned to each group. Augmentation with the synthetic implant (group 3) showed significantly greater yield, peak, and failure load than group 1. There were no significant differences between group 2 and either group 1 or group 3.Conclusions: Patellar ligament repair augmented with a synthetic ultrahigh-molecular-weight polyethylene implant offered greater tensile strength than a Bunnell suture with an adjunction of a circumpatellar repair.Clinical relevance: The use of a synthetic ultrahigh-molecular-weight polyethylene implant may offer a viable surgical option for patellar ligament repair. Further studies are warranted to assess the long-term outcome in vivo in patients with injured patellar ligament.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hair density response to photobiomodulation in canine alopecia X is measured reliably with an ordinal scale: a randomized, controlled, double-blind study. 毛发密度对犬X型脱发光生物调节的反应用有序量表可靠地测量：一项随机、对照、双盲研究。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-02 DOI: 10.2460/ajvr.25.01.0034

Dalia Aoudj, Jérôme R E Del Castillo, Camylle C Bergeron, Gabrielle Brosseau, Caroline de Jaham, Marie-Odile Benoit-Biancamano, Nadia Pagé

{"title":"Hair density response to photobiomodulation in canine alopecia X is measured reliably with an ordinal scale: a randomized, controlled, double-blind study.","authors":"Dalia Aoudj, Jérôme R E Del Castillo, Camylle C Bergeron, Gabrielle Brosseau, Caroline de Jaham, Marie-Odile Benoit-Biancamano, Nadia Pagé","doi":"10.2460/ajvr.25.01.0034","DOIUrl":"https://doi.org/10.2460/ajvr.25.01.0034","url":null,"abstract":"Objective: To develop an ordinal hair density score (HDS), determine its inter-rater agreement, and use it in a trial of photobiomodulation as a sole treatment for alopecia X.Methods: A 5-level ordinal HDS system was developed. Four blinded veterinary dermatologists independently graded a 50-image reference set using the HDS. Inter-rater agreement was assessed using the quadratic-weighted Fleiss κ, Brennan-Prediger, and Gwet AC2 coefficients. A double-blind, randomized, controlled trial was performed using a convenience sample of alopecia X dogs recruited based on inclusion and exclusion criteria over 16 months. Photoconverter gels were applied on both alopecic sides of each patient once per week for 8 weeks. One randomly chosen side was exposed to excitatory light (active treatment) but not the other (sham). Skin biopsies were taken from the center of each treated side before and at the end of the study. The images of active and sham sides acquired before the study, at day 50, and at the end of the study were graded using the HDS.Results: Inter-rater agreement coefficients were greater or equal to 0.81. Seven dogs were enrolled, but 1 withdrew after day 50. Hair density score evolved over time in both sides, but the OR of improved HDS increased with time only for the 3 central HDS grades. Histopathology revealed no notable differences between sides and across time.Conclusions: The HDS seems valid and useful in assessing the effect of photobiomodulation on the exposed areas of our alopecia X patients.Clinical relevance: This novel, easily applicable scale may facilitate the therapeutic monitoring of alopecia in dogs.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-11"},"PeriodicalIF":1.3,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Venovo venous stent for percutaneous treatment of intrahepatic portosystemic shunts in 14 dogs. 静脉-静脉支架经皮治疗肝内门静脉系统分流14例。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-02 DOI: 10.2460/ajvr.25.02.0061

Samantha G Collins, Lauren E Markovic, Joseph W Bartges

{"title":"Venovo venous stent for percutaneous treatment of intrahepatic portosystemic shunts in 14 dogs.","authors":"Samantha G Collins, Lauren E Markovic, Joseph W Bartges","doi":"10.2460/ajvr.25.02.0061","DOIUrl":"10.2460/ajvr.25.02.0061","url":null,"abstract":"Objective: To present single-center data for the Venovo venous stent as an alternative option during percutaneous transvenous coil embolization (PTCE) in dogs with a congenital intrahepatic portosystemic shunt.Animals: 14 client-owned dogs in a retrospective case series.Clinical presentation: All dogs were referred for PTCE intervention and had varying degrees of clinical signs. Dogs were medically managed before PTCE. Medical records of dogs that underwent PTCE using a Venovo stent from 2020 through 2024 were reviewed for relevant periprocedural data, adverse events, and outcomes.Results: 14 dogs with a mean body weight of 19.5 kg (SD, 6.9 kg) underwent PTCE with implantation of a Venovo stent. The mean caudal vena cava diameter cranial to the shunt orifice was 15.4 mm (SD, 2.8 mm) and caudal to the shunt orifice was 17.5 mm (SD, 3.7 mm). A single Venovo stent was used for each dog, with a median diameter of 18.0 mm (IQR, 14.0 to 20.0 mm) and a mean length of 91.4 mm (SD, 21.8 mm). The mean ratio of stent size to vena cava diameter was 1.0 (SD, 0.1) caudal to the shunt orifice and 0.9 (SD, 0.1) cranial to the shunt orifice. Postoperative radiographs in all dogs revealed appropriate stent and coil position with no outward migration or fracture.Clinical relevance: The Venovo venous stent is a viable option for stent selection when planning for PTCE. The Venovo stent can be generally sized 1:1 to the vessel, and oversizing to the caudal vena cava is unnecessary.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-9"},"PeriodicalIF":1.3,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manubrium tracheal index versus thoracic inlet tracheal index and proximal rib3 tracheal score to radiographically assess bulldogs' tracheal diameter at 3 levels. 胸骨柄气管指数与胸入口气管指数和近肋气管评分对牛头犬气管直径进行3个水平的影像学评价。

IF 1.3 3区农林科学

American journal of veterinary research Pub Date : 2025-05-02 DOI: 10.2460/ajvr.24.12.0400

Ayman A Mostafa, Clifford R Berry

{"title":"Manubrium tracheal index versus thoracic inlet tracheal index and proximal rib3 tracheal score to radiographically assess bulldogs' tracheal diameter at 3 levels.","authors":"Ayman A Mostafa, Clifford R Berry","doi":"10.2460/ajvr.24.12.0400","DOIUrl":"https://doi.org/10.2460/ajvr.24.12.0400","url":null,"abstract":"Objective: To evaluate the manubrium tracheal index (M-TI) at 3 levels and the correlation between M-TI and other conventional techniques.Methods: Medical records and thoracic radiographs of healthy bulldogs were investigated. Tracheal luminal diameter (TLD) was measured at the caudal cervical, thoracic inlet, and intrathoracic tracheal regions on right lateral thoracic view. The absolute and average TLDs were standardized by the manubrium length (ML), thoracic inlet distance (Ti-D), and proximal third rib width to calculate M-TI, thoracic inlet tracheal index (Ti-TI), and proximal rib3 tracheal score (PR3-TS), respectively. Correlations between averaged tracheal diameter and each of ML, Ti-D, and proximal third rib width and between M-TI and each of Ti-TI and PR3-TS were evaluated.Results: 100 healthy French (n = 34), English (n = 33), and American (n = 33) Bulldogs met the inclusion criteria. The narrowest tracheal diameter was identified at the thoracic inlet, which was significantly narrower than both the caudal cervical and intrathoracic tracheal regions. There was no significant difference between the caudal cervical and intrathoracic tracheal regions. Strong, positive, linear correlations were identified between TLD and each normalizing parameter (ie, ML, Ti-D, and PR3-TS). Weak-to-moderate correlations were identified between the 3 procedures (ie, M-TI, Ti-TI, and PR3-TS).Conclusions: M-TI could be an alternative to Ti-TI and PR3-TS for monitoring TLD in bulldogs. Therefore, future screening for tracheal hypoplasia is recommended using M-TI.Clinical relevance: Bulldogs with M-TI < 0.29 at the thoracic inlet trachea and < 0.33 at the caudal cervical and intrathoracic trachea (average M-TI < 0.32) may have tracheal hypoplasia. However, further assessments of diseased bulldogs and the repeatability of measurements are still warranted.","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143952690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0