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Bendinelli C, D'Angelo M, Leonardi F, Verdier N, Cozzi F, Lombardo R, Portela DA. Erector spinae plane block in dogs undergoing hemilaminectomy: A prospective randomized clinical trial. Vet Anaesth Analg 2024; 51:279-287. [PMID: 38553382 DOI: 10.1016/j.vaa.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 12/16/2023] [Accepted: 02/06/2024] [Indexed: 04/28/2024]
Abstract
OBJECTIVE To compare the perioperative cumulative opioid consumption and the incidence of cardiovascular complications in dogs undergoing hemilaminectomy in which either an erector spinae plane (ESP) block or systemic opioids were administered. STUDY DESIGN Prospective randomized clinical trial. ANIMALS A total of 60 client-owned dogs. METHODS Dogs were randomized to one of three groups: an ESP block (group ESP), a constant rate infusion of fentanyl (group FNT, positive control) or a single dose of methadone as premedication (group MTD, negative control). Intraoperative nociceptive response was treated with fentanyl [1 μg kg-1, intravenously (IV)] boli. Before closure of the surgical site, morphine (0.1 mg kg-1) was applied to the dura mater. The cumulative dose of opioids was recorded and compared between groups. The incidence of intraoperative bradycardia and/or hypotension and the time to extubation were compared between groups. The short form of the Glasgow Composite Pain Scale (SF-GCPS) was used to score nociception before anaesthetic induction and 1, 2, 6, 12,18 and 24 hours postoperatively. Methadone 0.2 mg kg-1 was administered IV if the SF-GCPS score was ≥ 5. RESULTS Group MTD required more intraoperative rescue analgesia than groups ESP (p = 0.008) and FNT (p = 0.001). The total cumulative intraoperative dose of fentanyl was higher in groups FNT (p < 0.0001) and MTD (p = 0.002) than in group ESP. The incidence of cardiovascular complications was similar between groups. Extubation time was longer in group MTD (p = 0.03). Postoperatively, the time to first rescue analgesia was longer in group ESP than in group MTD (p = 0.03). The cumulative postoperative opioid consumption and pain scores were similar between groups. CONCLUSIONS AND CLINICAL RELEVANCE The ESP block resulted in a reduced intraoperative opioid consumption compared with the control positive and negative groups.
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Affiliation(s)
| | - Marianna D'Angelo
- Clinica Veterinaria NVA (Neurologi Veterinari Associati), MIlan, Italy
| | - Fabio Leonardi
- Department of Veterinary Science, University of Parma, Parma, Italy
| | - Natali Verdier
- Clinical Unit of Anaesthesiology and Perioperative Intensive-Care Medicine, Department of Companion Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Francesca Cozzi
- Clinica Veterinaria NVA (Neurologi Veterinari Associati), MIlan, Italy
| | - Rocco Lombardo
- Clinica Veterinaria NVA (Neurologi Veterinari Associati), MIlan, Italy
| | - Diego A Portela
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
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Margeti C, Kazakos G, Skampardonis V, Galatos AD, Zacharopoulou T, Tsioli V, Loukopoulos E, Tyrnenopoulou P, Papatsiros VG, Flouraki E. The Effect of a Subsequent Dose of Dexmedetomidine or Other Sedatives following an Initial Dose of Dexmedetomidine on Sedation and Quality of Recovery in Cats: Part I. Vet Sci 2024; 11:186. [PMID: 38787158 PMCID: PMC11126131 DOI: 10.3390/vetsci11050186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/13/2024] [Accepted: 04/20/2024] [Indexed: 05/25/2024] Open
Abstract
Dexmedetomidine is an a2-agonist commonly used in veterinary practice. Occasionally, the administered dose of dexmedetomidine may result in insufficient sedation, and an additional dose or drug may be required. The sedative effects of seven different drugs administered at subsequent time points after an initial, insufficient dose of dexmedetomidine were evaluated. Seven adult cats participated in this crossover, blind, randomised study. The groups consisted of two consecutive doses of dexmedetomidine (15 + 10 μg/kg) (DD) or a dose of dexmedetomidine (15 μg/kg) followed by either NS 0.9% (DC-control group), tramadol 2 mg/kg (DT), butorphanol 0.2 mg/kg (DBT), buprenorphine 20 μg/kg (DBP), ketamine 2 mg/kg (DK), or midazolam 0.1 mg/kg (DM). Sedation was evaluated using the Grint sedation scale. In all groups, atipamezole was administered at the end of the evaluation, and recovery was assessed using the Lozano and Sams recovery scales. The DC and DM groups exhibited minimal sedative effects. The maximum sedative effect was observed in the DD and DK groups, while sedation in the DD and DK groups was significantly higher compared to the DC group. Recovery in all groups was uneventful, except in the DM group, where it was prolonged and difficult, although no statistically significant difference was detected. Therefore, insufficient sedation with dexmedetomidine can be enhanced by a subsequent dose of dexmedetomidine, ketamine, or butorphanol, whereas the addition of midazolam reduces sedation and prolongs recovery.
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Affiliation(s)
- Chrysoula Margeti
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
| | - Georgios Kazakos
- Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54627 Thessaloniki, Greece;
| | - Vassilis Skampardonis
- Department of Epidemiology, Biostatistics and Animal Health Economics, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece;
| | - Apostolos D. Galatos
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
| | - Theodora Zacharopoulou
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
| | - Vassiliki Tsioli
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
| | - Epameinondas Loukopoulos
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
| | - Panagiota Tyrnenopoulou
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
| | - Vasileios G. Papatsiros
- Clinic of Medicine, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece
| | - Eugenia Flouraki
- Clinic of Surgery, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (C.M.); (A.D.G.); (T.Z.); (V.T.); (E.L.); (P.T.)
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Steagall PV, Monteiro BP, Marangoni S, Moussa M, Sautié M. Fully automated deep learning models with smartphone applicability for prediction of pain using the Feline Grimace Scale. Sci Rep 2023; 13:21584. [PMID: 38062194 PMCID: PMC10703818 DOI: 10.1038/s41598-023-49031-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 12/03/2023] [Indexed: 12/18/2023] Open
Abstract
This study used deep neural networks and machine learning models to predict facial landmark positions and pain scores using the Feline Grimace Scale© (FGS). A total of 3447 face images of cats were annotated with 37 landmarks. Convolutional neural networks (CNN) were trained and selected according to size, prediction time, predictive performance (normalized root mean squared error, NRMSE) and suitability for smartphone technology. Geometric descriptors (n = 35) were computed. XGBoost models were trained and selected according to predictive performance (accuracy; mean square error, MSE). For prediction of facial landmarks, the best CNN model had NRMSE of 16.76% (ShuffleNetV2). For prediction of FGS scores, the best XGBoost model had accuracy of 95.5% and MSE of 0.0096. Models showed excellent predictive performance and accuracy to discriminate painful and non-painful cats. This technology can now be used for the development of an automated, smartphone application for acute pain assessment in cats.
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Affiliation(s)
- P V Steagall
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada.
- Department of Veterinary Clinical Sciences and Centre for Animal Health and Welfare, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China.
| | - B P Monteiro
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - S Marangoni
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - M Moussa
- Plateforme IA-Agrosanté, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - M Sautié
- Plateforme IA-Agrosanté, Université de Montréal, Saint-Hyacinthe, QC, Canada
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Imboden TJ, Pownall WR, Rubin S, Spadavecchia C, Schöllhorn B, Rohrbach H. Determination of a safe sedative combination of dexmedetomidine, ketamine and butorphanol for minor procedures in dogs by use of a stepwise optimization method. Acta Vet Scand 2023; 65:41. [PMID: 37737188 PMCID: PMC10515426 DOI: 10.1186/s13028-023-00697-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/10/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND In veterinary practice, most minor procedures such as radiographs, skin biopsies, and wound treatments require sedation. The combination of butorphanol, ketamine, and dexmedetomidine is commonly used, but the ideal dosages for this combination have not been defined. This randomized prospective clinical 3-phases trial initially tested eight clinically relevant combinations of intramuscular administration in 50 dogs (phase 1). The quality of each combination was rated using a purposefully developed negative score (NS; 0-21.5, the lower the NS the better the quality of sedation) to judge the quality of sedation, the occurrence of side effects, and the need for additional anaesthetics. Based on the results of the NS, the eight combinations were divided into "promising" and "unsatisfactory" subgroups. In phase 2, a new combination (N) was calculated and tested in six dogs replacing the worst of the eight initial combinations. This procedure was repeated until the NS could not be improved any further. In phase 3, the best combination was tested in 100 adult dogs undergoing diagnostic or therapeutic procedures. RESULTS The optimal combination established was dexmedetomidine 0.005 mg/kg, ketamine 1 mg/kg, and butorphanol 0.3 mg/kg with a median NS of 1.5 (interquartile range 1.5-2.4). In all 112 dogs receiving this combination, the quality of sedation was satisfactory and no severe side effects were detected. CONCLUSIONS The application of this optimization method allowed the calculation of an optimal drug combination to sedate cardiovascularly healthy dogs. After having being tested in 112 animals, this combination can consequently be considered safe. Therefore, this combination can now be used in daily clinical practice for cardiovascularly healthy adult dogs undergoing minor procedures.
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Affiliation(s)
- Tobias Jonas Imboden
- Border Veterinary Service, Postfach, Fracht West, Zurich Airport, 8058 Switzerland
| | - William Robert Pownall
- Surgery Department, Department of Veterinary Sciences, Vetsuisse Faculty, Small Animal Clinic, University of Bern, Laenggassstrasse 128, Bern, 3012 Switzerland
| | | | - Claudia Spadavecchia
- Anaesthesiology Section, Department of Veterinary Sciences, Vetsuisse Faculty, University of Bern, Laenggassstrasse 124, Bern, 3012 Switzerland
| | - Bernhard Schöllhorn
- Vet Zentrum Berchtesgadener Land, Weitwiesenring 4, 83435 Bad Reichenhall, Deutschland
| | - Helene Rohrbach
- Anaesthesiology Section, Department of Veterinary Sciences, Vetsuisse Faculty, University of Bern, Laenggassstrasse 124, Bern, 3012 Switzerland
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Malo A, Cheng AJ, Ruel HLM, Monteiro BP, Lutevele N, Marangoni S, Garbin M, Watanabe R, Steagall PV. Randomised, prospective, blinded, clinical trial of opioid-free injectable anaesthesia with or without multimodal analgesia in kittens undergoing ovariohysterectomy. J Feline Med Surg 2023; 25:1098612X231158582. [PMID: 36943182 PMCID: PMC10812012 DOI: 10.1177/1098612x231158582] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
OBJECTIVES This study compared an opioid-free injectable anaesthetic protocol with or without multimodal analgesia in kittens undergoing ovariohysterectomy. METHODS In this prospective, randomised, blinded, clinical trial, 29 healthy kittens (mean ± SD weight 1.55 ± 0.46 kg; aged 10 weeks to 6 months) were included. Anaesthesia was performed with an intramuscular injection of ketamine (4 mg/kg), dexmedetomidine (40 μg/kg) and midazolam (0.25 mg/kg). In the multimodal group (MMG), cats (n = 14) received meloxicam (0.1 mg/kg SC) and intraperitoneal bupivacaine 0.25% (2 mg/kg), whereas the same volume of saline was administered in the control group (CG; n = 15). Atipamezole (0.4 mg/kg IM) was given 15 mins after ovariohysterectomy. Postoperative pain was assessed using the UNESP-Botucatu multidimensional feline pain assessment scale - short form. Rescue analgesia (buprenorphine 0.02 mg/kg IM in MMG/CG and meloxicam 0.1 mg/kg SC in CG) was administered if pain scores were ⩾4/12. Soft food intake (after 2 and 60 mins) was evaluated at specific time points postoperatively. Statistical analyses were performed with linear models and post-hoc pairwise comparison with Benjamini-Hochberg corrections (P <0.05). RESULTS The prevalence of rescue analgesia was higher in the CG (n = 15/15) than the MMG (n = 1/14; P <0.001). Pain scores at 1 h, 2 h and 4 h postoperatively were higher in the CG (4.1 ± 2.8, 4.8 ± 3.0 and 5.3 ± 1.2, respectively) than in the MMG (1.6 ± 1.0, 1.1 ± 1.0 and 0.9 ± 0.8, respectively; P <0.001). Food intake (%) at 1 h postoperatively was higher in the MMG after 2 and 60 mins (10.4 ± 9 and 71.9 ± 29, respectively) than in the CG (1.4 ± 2 and 13.9 ± 7, respectively; P <0.001). CONCLUSIONS AND RELEVANCE This opioid-free protocol using multimodal analgesia produced adequate postoperative pain relief, while almost eliminating the need for rescue analgesia in kittens undergoing ovariohysterectomy. Pain decreased food intake.
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Affiliation(s)
- Annie Malo
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Alice J Cheng
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Hélène LM Ruel
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Beatriz P Monteiro
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Nathanael Lutevele
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Sabrine Marangoni
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Marta Garbin
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Ryota Watanabe
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Paulo V Steagall
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada
- Department of Veterinary Clinical Sciences, Centre for Companion Animal Health and Welfare, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
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