Silke Pfitzer , Liesel L. Laubscher , Jacobus P. Raath , Aleksandr Semjonov , Etienne P. Basson , Lisa L. Wolfe , Michael W. Miller , Gareth E. Zeiler
{"title":"Butorphanol–azaperone–medetomidine and ketamine–butorphanol–azaperone–medetomidine chemical immobilization in habituated subadult female giraffe (Giraffa camelopardalis)","authors":"Silke Pfitzer , Liesel L. Laubscher , Jacobus P. Raath , Aleksandr Semjonov , Etienne P. Basson , Lisa L. Wolfe , Michael W. Miller , Gareth E. Zeiler","doi":"10.1016/j.vaa.2025.04.009","DOIUrl":"10.1016/j.vaa.2025.04.009","url":null,"abstract":"<div><h3>Objective</h3><div>To describe the effects of butorphanol–azaperone–medetomidine (BAM) and ketamine–butorphanol–azaperone–medetomidine (KBAM) used for the chemical immobilization of giraffes.</div></div><div><h3>Study design</h3><div>Quasi-experimental trial.</div></div><div><h3>Animals</h3><div>A group of 10 habituated subadult female giraffes.</div></div><div><h3>Methods</h3><div>Five giraffe were immobilized with BAM (0.02 mL cm<sup>–1</sup> estimated shoulder height) and five with KBAM (0.015 mL cm<sup>–1</sup> estimated shoulder height BAM and 200 mg ketamine). Time to events were recorded (time to recumbency and recovery time). Physiological variables (heart rate, respiratory rate, rectal temperature, invasive arterial blood pressure and peripheral oxyhaemoglobin saturation) were recorded every 5 minutes and arterial blood gas analysis was performed every 10 minutes after instrumentation. Atipamezole (5 mg mg<sup>–1</sup> medetomidine administered) and naltrexone (1 mg mg<sup>–1</sup> butorphanol administered) were administered intramuscularly at 30 minutes post-recumbency for recovery. Time to events, physiological and arterial blood gas data were compared between drug combinations using a two-sample <em>t</em>-test (significance was <em>p</em> < 0.05). Data are shown as mean ± standard deviations.</div></div><div><h3>Results</h3><div>All giraffes were successfully immobilized. Based on measured shoulder height, the doses administered were 0.70 and 0.48 mg cm<sup>–1</sup> for butorphanol, 0.28 and 0.2 mg cm<sup>–1</sup> for azaperone and medetomidine in BAM and KBAM, respectively. Times to recumbency were 17.1 ± 9.3 and 6.3 ± 1.1 minutes for BAM and KBAM respectively (<em>p</em> = 0.06). All giraffes had hypoxaemia and hyperlactataemia, with PaO<sub>2</sub> values of 52 ± 13 and 41 ± 4 mmHg and lactate values of 14.4 ± 6.1 and 11.0 ± 5.5 mmol L<sup>–1</sup> for BAM and KBAM, respectively. Recoveries were calm with minimal ataxia.</div></div><div><h3>Conclusion and clinical relevance</h3><div>BAM and KBAM produced reliable chemical immobilization for 30 minutes. The addition of ketamine to the BAM combination is recommended because of its faster induction time. Because of clinically significant hypoxaemia, oxygen supplementation should be administered if these drug combinations are used.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 4","pages":"Pages 403-411"},"PeriodicalIF":1.4,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144249777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marianna Figurska, Adam Auckburally, Lucía Torres-Cantó
{"title":"Use of inhaled salbutamol for the treatment of unanticipated hyperkalaemia during general anaesthesia in a Greyhound","authors":"Marianna Figurska, Adam Auckburally, Lucía Torres-Cantó","doi":"10.1016/j.vaa.2025.01.005","DOIUrl":"10.1016/j.vaa.2025.01.005","url":null,"abstract":"","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 369-370"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ignacio Sández , Rocío Bustamante , Pablo A. Donati , Daniel Torralbo , Maria Soto , Aitor Fernández-Novo , Eva Rioja
{"title":"Evaluation of oesophageal Doppler-derived variables and plethysmographic variability index to predict fluid responsiveness in mechanically ventilated healthy dogs","authors":"Ignacio Sández , Rocío Bustamante , Pablo A. Donati , Daniel Torralbo , Maria Soto , Aitor Fernández-Novo , Eva Rioja","doi":"10.1016/j.vaa.2025.03.003","DOIUrl":"10.1016/j.vaa.2025.03.003","url":null,"abstract":"<div><h3>Objective</h3><div>To evaluate the plethysmography variability index (PVI) and oesophageal Doppler (OD)-derived dynamic variables [stroke distance variation (StDV) and aortic flow peak velocity variation (PVV)] as predictors of fluid responsiveness.</div></div><div><h3>Study design</h3><div>A prospective cohort, diagnostic test study.</div></div><div><h3>Animals</h3><div>A group of 30 client-owned dogs undergoing general anaesthesia.</div></div><div><h3>Methods</h3><div>Dogs received dexmedetomidine (3 μg kg<sup>-1</sup>) and methadone (0.3 mg kg<sup>-1</sup>), intramuscularly. Anaesthesia was induced with propofol and maintained with isoflurane. Volume-controlled ventilation was instituted with tidal volume 10 mL kg<sup>-1</sup>, inspiratory-to-expiratory ratio 1:2. Heart rate (HR) and mean arterial pressure (MAP) were monitored. An OD probe was inserted to measure stroke distance (StD). Once surgery finished, PVV, StDV and PVI were recorded before (T0) and after (T1) the administration of 3 mL kg<sup>-1</sup> bolus of hydroxyethyl starch 6% over 5 minutes. Dogs were classified as fluid-responders (R; StD increased ≥ 15%) or non-fluid-responders (NR). Receiver operating characteristic (ROC) curves were plotted for PVV, StDV and PVI.</div></div><div><h3>Results</h3><div>Of the 30 animals, eight were classified as R and 22 as NR. The areas under the ROC curves for PVV, StDV and PVI were 0.87 [confidence interval (CI) 0.82–1], 0.84 (CI 0.67–1) and 0.78 (CI 0.62–1), respectively. The best cut-offs (positive–negative predictive values) were 9% (54–94%) for PVV (sensitivity, 88%; specificity, 73%), 12% (58–94%) for StDV (sensitivity, 88%; specificity, 77%) and 15% (60–90%) for PVI (sensitivity, 75%; specificity, 82%). No statistical differences were found between R and NR, nor between T0 and T1, for MAP or HR.</div></div><div><h3>Conclusions and clinical relevance</h3><div>OD-derived values of PVV, StDV and PVI are reasonable predictors of fluid responsiveness in client-owned dogs undergoing general anaesthesia and mechanical ventilation.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 293-301"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mathieu Raillard , Olivier L. Levionnois , Martina Mosing , Anthea Raisis
{"title":"Application and calculation methods of dynamic compliance in anaesthetised dogs, a scoping review","authors":"Mathieu Raillard , Olivier L. Levionnois , Martina Mosing , Anthea Raisis","doi":"10.1016/j.vaa.2025.01.011","DOIUrl":"10.1016/j.vaa.2025.01.011","url":null,"abstract":"<div><h3>Objectives</h3><div>To record the terms, definitions, and abbreviations used in the literature, investigate the rationale for employing dynamic compliance (C<sub>dyn</sub>) in studies of anaesthetised dogs with mechanically ventilated lungs, and identify the methods used to calculate C<sub>dyn</sub>.</div></div><div><h3>Databases used</h3><div>A comprehensive search across Medline, PubMed, Scopus, and CAB Abstracts databases identified studies using keywords related to canine species, anaesthesia, C<sub>dyn</sub>, and the respiratory system. Reference lists from recent publications (2010–2024) focusing on respiratory mechanics in dogs were also reviewed. Following duplicate removal, a two-step screening process was employed. This involved reviewing titles and abstracts, followed by full-text retrieval based on predefined eligibility criteria, concentrating on studies involving anaesthetised dogs with closed chests where C<sub>dyn</sub> was measured. Data extraction included terms, definitions, measurement equipment, and study applications.</div></div><div><h3>Conclusions</h3><div>Of 362 initial documents, 186 duplicates were removed, leaving 176 for abstract screening. Of these, 122 full texts were retrieved, with 54 meeting inclusion criteria. Most studies were published between 1970 and 2002, with only five published after 2010. In 49/54 studies, dogs were used as animal models for translational research. Whole-body plethysmographs and pneumotachographs were commonly used to evaluate tidal volume for the calculation of C<sub>dyn</sub>; the sampling site of airway pressure varied. In 43/54 papers, oesophageal or pleural pressure was measured to determine transpulmonary pressure, suggesting that C<sub>dyn</sub> of the lung was monitored, although this was not always explicitly stated. The three most recent studies involved clinical patients, using C<sub>dyn</sub> of the respiratory system displayed by respiratory modules integrated into ventilators or multiparametric physiological monitors. Future research should establish clear protocols for measuring C<sub>dyn</sub> to enhance understanding and characterization for both research and clinical purposes.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 269-283"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matteo Serpieri, Ilaria Prandi, Chiara Ottino, Giuseppe Bonaffini, Giuseppe Quaranta, Mitzy Mauthe von Degerfeld
{"title":"Isoflurane-associated penile erection in two bats: a Savi’s pipistrelle (Hypsugo savii) and a Kuhl’s pipistrelle (Pipistrellus kuhlii)","authors":"Matteo Serpieri, Ilaria Prandi, Chiara Ottino, Giuseppe Bonaffini, Giuseppe Quaranta, Mitzy Mauthe von Degerfeld","doi":"10.1016/j.vaa.2025.01.008","DOIUrl":"10.1016/j.vaa.2025.01.008","url":null,"abstract":"<div><div>This report describes two cases of persistent penile erection in vespertilionid bats (<em>Hypsugo savii</em> and <em>Pipistrellus kuhlii</em>) during anaesthesia with isoflurane. The bats, presenting with wing fractures, were anaesthetised setting the vaporiser at 5% isoflurane for induction and 2% for maintenance. Both subjects developed penile erection upon induction of anaesthesia, which persisted for the duration of the procedures, lasting approximately 20 minutes. The condition resolved spontaneously after isoflurane discontinuation in both cases. No complications were observed and recovery was uneventful. This phenomenon has been reported in other species and in human medicine, often linked to the use of drugs exhibiting vasodilating properties. However, the exact underlying mechanisms remain unclear. Isoflurane is widely used in bats since it has several advantages, including rapid induction of and recovery from anaesthesia. Sevoflurane, which shares similar benefits but has a less pungent odour, could be an alternative choice, and investigating a potential dose-dependent effect of this agent might provide valuable insights. This is particularly relevant given the possible role of the anaesthetic’s smell as a psychogenic trigger for penile erection.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 365-368"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Re: Iff I, Hohermuth B, Bass D, Bass M. A case of potential rapidly progressing osteoarthritis (RPOA) in a dog during bedinvetmab treatment. Veterinary Anaesthesia and Analgesia. 2024 Nov 29","authors":"Mike Farrell , Rob Adams , Louise Clark","doi":"10.1016/j.vaa.2025.02.013","DOIUrl":"10.1016/j.vaa.2025.02.013","url":null,"abstract":"","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 371-372"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143743970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Answer re: A case of potential rapidly progressing osteoarthritis (RPOA) in a dog under bedinvetmab treatment","authors":"Isabelle Iff , Bettina Hohermuth , Danielle Bass , Martin Bass","doi":"10.1016/j.vaa.2025.03.001","DOIUrl":"10.1016/j.vaa.2025.03.001","url":null,"abstract":"","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 374-375"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143754763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Benjamin W. Chen, Jennifer Davis, Gabriele Rossi, Giselle L. Hosgood, Anthea L. Raisis
{"title":"Exploring urinary biomarkers of early acute kidney injury in a clinical model of canine intraoperative hypotension: an observational cohort study","authors":"Benjamin W. Chen, Jennifer Davis, Gabriele Rossi, Giselle L. Hosgood, Anthea L. Raisis","doi":"10.1016/j.vaa.2025.02.005","DOIUrl":"10.1016/j.vaa.2025.02.005","url":null,"abstract":"<div><h3>Objective</h3><div>To explore changes in urinary biomarkers of acute kidney injury (AKI) in healthy dogs experiencing intraoperative hypotension and explore the relationship between blood pressure and urinary biomarkers.</div></div><div><h3>Study design</h3><div>Observational cohort study.</div></div><div><h3>Animals</h3><div>A group of 50 client-owned dogs.</div></div><div><h3>Methods</h3><div>Urine and blood samples were collected prior to anaesthesia (T0), within 24 hours after anaesthesia (T1) and 10 days post-surgery (T10). During anaesthesia, the lowest mean arterial pressure (MAP) in each dog was identified. Impact of duration was explored by categorizing according to arbitrary thresholds of MAP < 50, < 60, < 70 and < 80 mmHg and calculating duration (minutes) within each category. Serum creatinine (Cr) and validated biomarkers of AKI including urinary gamma-glutamyl transferase (uGGT), urinary neutrophil gelatinase-associated lipocalin (uNGAL) and urinary cystatin C (uCystatin C) were measured. Biomarker measurements were standardized to urinary Cr. The frequency of dogs with proportional increases between T1 and T0 and between T10 and T0 was recorded. Multiple regression analysis determined the simplest subset of independent variables (lowest MAP, duration with each MAP category) to best explain the variance in the proportional change of each biomarker.</div></div><div><h3>Results</h3><div>Hypotension, defined as MAP < 60 mmHg, was observed in 38/50 (76%) of the dogs. Between T1 and T0, increases in uGGT/Cr, uCystatin C/Cr and uNGAL/Cr were observed in 37 (82%), 17 (41 %) and 19 (35%) of 50 dogs, respectively. Of the variance observed in uGGT/Cr at T1/T0, 62% could be explained by the lowest MAP recorded when combined with duration MAP < 50 mmHg (adjusted R<sup>2</sup> 0.62).</div></div><div><h3>Conclusions and clinical relevance</h3><div>In this clinical model of intraoperative hypotension, uGGT/Cr demonstrated potential for diagnosis of early AKI. The use of other validated biomarkers of AKI requires further investigation to establish their clinical relevance in diagnosis of post-anaesthetic kidney injury.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 311-319"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Complete mechanical expiratory obstruction as a result of expiratory valve malposition in an anesthetized dog","authors":"Alexa Acevedo, Luisito S. Pablo, Enzo Vettorato","doi":"10.1016/j.vaa.2025.04.008","DOIUrl":"10.1016/j.vaa.2025.04.008","url":null,"abstract":"<div><div>A female, mixed-breed dog, aged 8 years, presenting with left temporomandibular joint ankylosis caused by a soft tissue sarcoma was anesthetized for tracheotomy and caudal segmental mandibulectomy. After intramuscular sedation with methadone and dexmedetomidine, oxygen was delivered by face mask, and anesthesia induced and maintained with propofol. A tracheotomy was performed, and a cuffed endotracheal tube was inserted. A circle breathing system that had been leak-tested was connected to the endotracheal tube, and oxygen (2 L minute<sup>–1</sup>) was administered. End-expiratory carbon dioxide partial pressure was undetectable despite manual ventilation. The breathing system was disconnected and capnograph function confirmed by the anesthetist exhaling into the sampling adaptor. Correct endotracheal tube placement within the tracheal lumen and absence of kinking was confirmed by direct visualization. The breathing system was reconnected to the endotracheal tube and the lungs were auscultated during manual ventilation, verifying airflow during inhalation. A rapid increase in breathing system pressure was observed on the airway manometer despite an open adjustable pressure-limiting valve. The problem was resolved by using a second anesthetic machine: capnograph displayed a waveform and breathing system pressure was 0 cmH<sub>2</sub>O. Throughout troubleshooting, saturation of arterial hemoglobin (pulse oximetry) remained > 97% and no arrhythmias were detected. A misassembled expiratory valve seat that immobilized the flutter valve was found as the cause of the problem on postanesthetic inspection of the anesthetic machine. Correcting the expiratory valve seat placement restored normal valve function. This case highlights the importance of confirming proper unidirectional valve seat assembly before anesthesia. Performing a leak test alone is insufficient to detect unidirectional valve malfunction. The lack of a safety mechanism to ensure correct valve seat placement reveals a design vulnerability that could lead to fatal anesthetic complications.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 4","pages":"Pages 498-502"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Megan M. Mangini , Jordan C. James , Sun Young Kim , Deborah V. Wilson
{"title":"A surgical approach to the transversus abdominis plane in cats: A cadaver study","authors":"Megan M. Mangini , Jordan C. James , Sun Young Kim , Deborah V. Wilson","doi":"10.1016/j.vaa.2025.02.007","DOIUrl":"10.1016/j.vaa.2025.02.007","url":null,"abstract":"<div><h3>Objective</h3><div>To evaluate an intra-abdominal approach to the transversus abdominis plane (TAP) in cats.</div></div><div><h3>Study design</h3><div>Prospective descriptive cadaveric study.</div></div><div><h3>Animals</h3><div>Nine adult feline cadavers.</div></div><div><h3>Methods</h3><div>A 5 cm ventral midline incision, centered on the umbilicus was created. The TAP was accessed at the midpoint of the incision using a 22 gauge, 31.8 mm catheter. The catheter was inserted beneath the transversus abdominis muscle at the lateral edge of its aponeurosis with the linea alba. Each hemiabdomen was injected with either 0.5 mL kg<sup>-1</sup> [low volume (LV)] or 1.0 mL kg<sup>-1</sup> [high volume (HV)] of a 1:1 mixture of methylene blue 1% and iodinated contrast solution. Three-dimensional reconstruction of tomographic images allowed measurement of injectate spread dimensions. Following dissection, the total number of nerves, their orientation to the incision and extent of staining were determined. The Shapiro–Wilk test and paired t-test were used to compare variables between groups.</div></div><div><h3>Results</h3><div>Tomographic images confirmed injectate spread within an abdominal fascial plane. Differences were found between groups for total length of spread [HV = 9.93 ± 1.35 cm (mean ± standard deviation); LV = 8.17 ± 1.37 cm; <em>p</em> = 0.002], spread caudal to incision (HV = 3.06 ± 0.88 cm; LV = 1.61 ± 0.97 cm; <em>p</em> = 0.003) and surface area (HV = 26.33 ± 10.08 cm; LV = 19.06 ± 7.54 cm; <em>p</em> = 0.014). The number of nerves stained was 3 (2–4) median (range) in both HV and LV groups. All nerves within the margin of the incision were stained in both groups.</div></div><div><h3>Conclusions and clinical relevance</h3><div>Both injectate volumes stained all nerves within the margin of the incision. This technique has the potential to provide analgesia to the abdominal wall comparable with an ultrasound-guided TAP block in cats, without the use of specialized equipment.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"52 3","pages":"Pages 353-359"},"PeriodicalIF":1.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}