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Oates R, Tarbert DK. Treatment of Pain in Rats, Mice, and Prairie Dogs. Vet Clin North Am Exot Anim Pract 2023; 26:151-174. [PMID: 36402479 DOI: 10.1016/j.cvex.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Recent myomorph and scuiromorph rodent analgesia studies are reviewed and evaluated for potential clinical application. Differences between laboratory animal studies and clinical use in diseased animals are discussed. Analgesia classes reviewed include local anesthetics, nonsteroidal anti-inflammatories, acetaminophen, opioids, and adjuvants such as anticonvulsants. Routes of administration including sustained-release mechanisms are discussed, as are reversal agents. Drug interactions are reviewed in the context of beneficial multimodal analgesia as well as potential adverse effects. Dosage recommendations for clinical patients are explored.
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Affiliation(s)
- Rhonda Oates
- Research and Teaching Animal Care Program, University of California - Davis, One Shields Avenue, Davis, CA 95616, USA.
| | - Danielle K Tarbert
- Companion Exotic Animal Medicine and Surgery Service, Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California - Davis, One Shields Avenue, Davis, CA 95616, USA
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2
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Paterson EA, Turner PV. Challenges with Assessing and Treating Pain in Research Primates: A Focused Survey and Literature Review. Animals (Basel) 2022; 12:ani12172304. [PMID: 36078024 PMCID: PMC9455027 DOI: 10.3390/ani12172304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/16/2022] Open
Abstract
Research primates may undergo surgical procedures making effective pain management essential to ensure good animal welfare and unbiased scientific data. Adequate pain mitigation is dependent on whether veterinarians, technicians, researchers, and caregivers can recognize and assess pain, as well as the availability of efficacious therapeutics. A survey was conducted to evaluate primate veterinary approaches to pain assessment and alleviation, as well as expressed challenges for adequately managing primate pain. The survey (n = 93 respondents) collected information regarding institutional policies and procedures for pain recognition, methods used for pain relief, and perceived levels of confidence in primate pain assessment. Results indicated that 71% (n = 60) of respondents worked at institutions that were without formal experimental pain assessment policies. Pain assessment methods were consistent across respondents with the majority evaluating pain based on changes in general activity levels (100%, n = 86) and food consumption (97%, n = 84). Self-reported confidence in recognizing and managing pain ranged from slightly confident to highly confident, and there was a commonly expressed concern about the lack of objective pain assessment tools and science-based evidence regarding therapeutic recommendations of analgesics for research primates. These opinions correspond with significant gaps in the primate pain management literature, including limited specific pharmacokinetic data and efficacy testing for commonly used analgesics in research primate species as well as limited research on objective and specific measures of pain in research primates. These results demonstrate that there are inconsistencies in institutional policies and procedures surrounding pain management in research primates and a lack of objective pain assessment methods. Demonstrating the gaps and challenges in primate pain management can inform guideline development and suggest areas for future research.
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Affiliation(s)
- Emilie A Paterson
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 0C4, Canada
| | - Patricia V Turner
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 0C4, Canada
- Global Animal Welfare and Training, Charles River, Wilmington, MA 01887, USA
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3
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Høy-Petersen J, Smith JS, Merkatoris PT, Black KE, Faivre CM, Miles KG, Tatarniuk DM, Kraus KH. Case Report: Trochlear Wedge Sulcoplasty, Tibial Tuberosity Transposition, and Lateral Imbrication for Correction of a Traumatic Patellar Luxation in a Miniature Companion Pig: A Case Report and Visual Description. Front Vet Sci 2021; 7:567886. [PMID: 33521073 PMCID: PMC7838352 DOI: 10.3389/fvets.2020.567886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 12/10/2020] [Indexed: 11/28/2022] Open
Abstract
The objective of this case report was to describe successful surgical and post-operative management of a medial patellar luxation in a Vietnamese Potbellied Pig. A two-year old, castrated, Vietnamese Potbellied Pig presented to a veterinary teaching hospital for right pelvic limb lameness of 2 weeks duration. Upon physical examination a grade 3 patellar luxation was diagnosed on the right pelvic limb. Surgical repair included a trochlear wedge sulcoplasty, tibial tuberosity transposition, and lateral imbrication as described for canine patellar luxation. The pig was managed post-operatively with meloxicam and a physical therapy regimen of seven weeks duration. At recheck examination the pig was sound, no complications were observed, and the owners were satisfied with the outcome. As miniature companion pigs, such as Vietnamese Potbellied Pigs are currently increasing in popularity as pets, this case demonstrated that comparative techniques from other veterinary species should be considered when considering a treatment plan for a pig with a medial patellar luxation.
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Affiliation(s)
- Jennifer Høy-Petersen
- Faculty of Veterinary Medicine, The Norwegian University of Life Sciences, Oslo, Norway.,College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Joe S Smith
- Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States.,Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Paul T Merkatoris
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States.,Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Kelley E Black
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Cosette M Faivre
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Kristina G Miles
- Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Dane M Tatarniuk
- Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Karl H Kraus
- Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
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Sredenšek J, Bošnjak M, Lampreht Tratar U, Kosjek T, Cemazar M, Kržan M, Seliškar A. Case Report: Intoxication in a Pig ( Sus Scrofa Domesticus) After Transdermal Fentanyl Patch Ingestion. Front Vet Sci 2020; 7:611097. [PMID: 33330726 PMCID: PMC7732491 DOI: 10.3389/fvets.2020.611097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/02/2020] [Indexed: 01/05/2023] Open
Abstract
An experimental study on the effects of electroporation on pancreatic tissue was performed in pigs, and the fentanyl transdermal patch (FTP) was used postoperatively as part of multimodal pain management. Ingestion of an FTP, which resulted in fentanyl intoxication, was suspected 5 days after placement in one of the experimental pigs. The pig was first dysphoric, running in the stall, panting and vocalizing until it finally became depressed and it remained lying on the floor. Ingestion of an FTP was not observed but the fentanyl plasma concentration on the day of intoxication was 20.7 ng/ml, while at its peak after FTP administration it was only 0.492 ng/ml. The intoxication was successfully treated with a single intramuscular naloxone injection.
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Affiliation(s)
- Jerneja Sredenšek
- Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Maša Bošnjak
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Urša Lampreht Tratar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Tina Kosjek
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia.,Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia.,Faculty of Health Sciences, University of Primorska, Izola, Slovenia
| | - Mojca Kržan
- Faculty of Medicine, Institute of Pharmacology and Experimental Toxicology, University of Ljubljana, Ljubljana, Slovenia
| | - Alenka Seliškar
- Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
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Moss RB, Pryor MM, Baillie R, Kudrycki K, Friedrich C, Reed M, Carlo DJ. Higher naloxone dosing in a quantitative systems pharmacology model that predicts naloxone-fentanyl competition at the opioid mu receptor level. PLoS One 2020; 15:e0234683. [PMID: 32544184 PMCID: PMC7297366 DOI: 10.1371/journal.pone.0234683] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 06/01/2020] [Indexed: 12/19/2022] Open
Abstract
Rapid resuscitation of an opioid overdose with naloxone, an opioid antagonist, is critical. We developed an opioid receptor quantitative systems pharmacology (QSP) model for evaluation of naloxone dosing. In this model we examined three opioid exposure levels that have been reported in the literature (25 ng/ml, 50 ng/ml, and 75 ng/ml of fentanyl). The model predicted naloxone-fentanyl interaction at the mu opioid receptor over a range of three naloxone doses. For a 2 mg intramuscular (IM) dose of naloxone at lower fentanyl exposure levels (25 ng/ml and 50 ng/ml), the time to decreasing mu receptor occupancy by fentanyl to 50% was 3 and 10 minutes, respectively. However, at a higher fentanyl exposure level (75 ng/ml), a dose of 2 mg IM of the naloxone failed to reduce mu receptor occupancy by fentanyl to 50%. In contrast, naloxone doses of 5 mg and 10 mg IM reduced mu receptor occupancy by fentanyl to 50% in 5.5 and 4 minutes respectively. These results suggest that the current doses of naloxone (2 mg IM or 4 mg intranasal (IN)) may be inadequate for rapid reversal of toxicity due to fentanyl exposure and that increasing the dose of naloxone is likely to improve outcomes.
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Affiliation(s)
- Ronald B. Moss
- Adamis Pharmaceuticals Corp, San Diego, CA, United States of America
- * E-mail:
| | | | | | | | | | - Mike Reed
- Rosa & Co. LLC, San Carlos, CA, United States of America
| | - Dennis J. Carlo
- Adamis Pharmaceuticals Corp, San Diego, CA, United States of America
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Smith AA, Halliday LC, Lindeblad MO, Fortman JD. Evaluation of Analgesic Patches in Cynomolgus Macaques ( Macaca fascicularis). J Am Assoc Lab Anim Sci 2019; 58:356-361. [PMID: 31010456 DOI: 10.30802/aalas-jaalas-18-000101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Opioids are widely used in veterinary and human medicine to manage pain. However, there is a paucity of information in the literature regarding the pharmacokinetics of opioid transdermal patches (TDP) in NHP. Therefore, to determine whether opioid TDP attain therapeutic concentrations in NHP, the pharmacokinetics of fentanyl (25 μg/h) and buprenorphine (10 and 20 μg/h) TDP were evaluated in naïve, adult, male cynomolgus macaques (n = 4) in a crossover study. Plasma opioid levels were determined by tandem liquid chromatography-mass spectrometry. The AUC0-inf for fentanyl and the low and high dose buprenorphine patches were 115 ± 14, 462 ± 74, and 778 ± 344 ng× h/mL, and the plasma half-lifes were 22 ± 4, 77 ± 27, and 42 ± 11 h, respectively. No adverse effects were noted throughout the study. Minimal therapeutic concentrations for fentanyl (0.2 ng/mL) and buprenorphine (0.1 ng/mL) were achieved in all macaques within 8 h of fentanyl and 24 h of buprenorphine TDP application. Therapeutic levels for the fentanyl and low- and high-dose buprenorphine patches were maintained for 96, 120, and 144 h, respectively. These findings suggest that 25-μg/h fentanyl patches should be replaced every 4 d, and the low- and high-dose buprenorphine patches should be replaced every 5 and 6 d, respectively. The results of this study show that fentanyl and buprenorphine patches achieve minimal therapeutic levels for clinically relevant periods of time and should be considered viable options for pain management in cynomolgus macaques.
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Affiliation(s)
- Alexandra A Smith
- Biologic Resources Laboratory, University of Illinois at Chicago, Chicago, Illinois;,
| | - Lisa C Halliday
- Biologic Resources Laboratory, University of Illinois at Chicago, Chicago, Illinois
| | - Matthew O Lindeblad
- Toxicology Research Laboratory, University of Illinois at Chicago, Chicago, Illinois
| | - Jeffrey D Fortman
- Biologic Resources Laboratory, University of Illinois at Chicago, Chicago, Illinois
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Abstract
Rationale Recent recognition of the need to improve pain management in cats has led to the investigation of the pharmacokinetics and efficacy of opioid analgesic drugs in this species. The results of these studies may be difficult to interpret because the effect of these drugs varies with dose, route of administration and the method used to assess them. As equipotency of different opioids is not known, it is hard to compare their effects. Animals do not verbalise the pain they feel and, in cats, it may be more difficult to recognise signs of pain in comparison with other species such as dogs. Aim This article reviews the use of opioid analgesics in cats. It must be remembered that not all drugs are licensed for use in cats, and that marketing authorisations vary between different countries.
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Affiliation(s)
- Elisa Bortolami
- Department of Animal Medicine, Production and Health, University of Padua, Italy
| | - Emma J Love
- School of Veterinary Sciences, University of Bristol, Langford, UK
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Foley PL. Current options for providing sustained analgesia to laboratory animals. Lab Anim (NY) 2014; 43:364-71. [DOI: 10.1038/laban.590] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 06/16/2014] [Indexed: 12/25/2022]
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