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Adrian D, Papich M, Baynes R, Murrell J, Lascelles BDX. Chronic maladaptive pain in cats: A review of current and future drug treatment options. Vet J 2017; 230:52-61. [PMID: 28887012 DOI: 10.1016/j.tvjl.2017.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 08/10/2017] [Accepted: 08/17/2017] [Indexed: 11/28/2022]
Abstract
Despite our increasing understanding of the pathophysiology underlying chronic or maladaptive pain, there is a significant gap in our ability to diagnose and treat the condition in domestic cats. Newer techniques being used to identify abnormalities in pain processing in the cat include validated owner questionnaires, measurement of movement and activity, and measurement of sensory thresholds and somatomotor responses. While some data are available evaluating possible therapeutics for the treatment of chronic pain in the cat, most data are limited to normal cats. This review details our current understanding of chronic or maladaptive pain, techniques for the detection and measurement of the condition and the associated central nervous changes, as well as an overview of the data evaluating potential therapeutics in cats.
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Affiliation(s)
- Derek Adrian
- Comparative Pain Research and Education Centre, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Mark Papich
- Molecular and Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Ron Baynes
- Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Jo Murrell
- School of Veterinary Sciences, University of Bristol, Bristol, UK
| | - B Duncan X Lascelles
- Comparative Pain Research and Education Centre, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA; Center for Pain Research and Innovation, UNC School of Dentistry, Chapel Hill, NC, USA; Center for Translational Pain Research, Department of Anesthesiology, Duke University, Durham, NC, USA.
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Sweileh WM, Shraim NY, Zyoud SH, Al-Jabi SW. Worldwide research productivity on tramadol: a bibliometric analysis. SPRINGERPLUS 2016; 5:1108. [PMID: 27478725 PMCID: PMC4949195 DOI: 10.1186/s40064-016-2801-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 07/08/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pain management and safe use of analgesics is an important medical issue. Tramadol is an old analgesic with controversial properties. Evaluation of worldwide scientific output on tramadol has not been explored. Therefore, the main objective of this study was to give a bibliometric overview of global research productivity on tramadol. METHODS SciVerse Scopus was used to retrieve and quantitatively and qualitatively analyze worldwide publications on tramadol. RESULTS A total of 2059 original and review research articles on tramadol were retrieved from Scopus. Forty-six documents (2.23 %) were published in Anesthesia and Analgesia Journal whereas 30 (1.46 %) were published in Arzneimittel Forschung Drug Research Journal. Retrieved tramadol documents were published from 71 countries and appeared in 160 peer reviewed journals. Although the United States of America (259; 12.86 %) had the largest contribution to tramadol publications; the contribution by other countries like Turkey (232; 11.27) India (189; 8.09 %) and Germany (176; 8.56 % was not far away from that of USA. The most productive institution was Grunenthal, Germany (47; 2.28 %) followed by Tehran University of Medical Sciences, Iran (29; 1.41 %), and, Ortho-McNeil Pharmaceutical Incorporated, USA (25; 1.21 %). Of the 2059 documents, there were 370 documents about dependence. The leading institution in documents pertaining to tramadol dependence was Grunenthal GmbH (18; 4.86 %) followed by Ortho-McNeil Pharmaceutical Incorporated (17; 4.59 %). CONCLUSIONS The current study showed that there is an obvious interest in tramadol research. More efforts are needed to clarify the abuse potential and safety profile of tramadol to help in determining the legal status of tramadol. Collaboration among pharmaceutical industry, clinical researchers and academic institutions can improve research quantity and quality on tramadol.
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Affiliation(s)
- Waleed M. Sweileh
- Department of Pharmacology/Toxicology, College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
| | - Naser Y. Shraim
- Department of Pharmaceutical Chemistry and Technology, College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
| | - Sa’ed H. Zyoud
- Department of Clinical and Community Pharmacy, College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
| | - Samah W. Al-Jabi
- Department of Clinical and Community Pharmacy, College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
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Abstract
Chiari-like malformation is a condition of the craniocervical junction in which there is a mismatch of the structures of the caudal cranial fossa causing the cerebellum to herniate into the foramen magnum. This herniation can lead to fluid buildup in the spinal cord, also known as syringomyelia. Pain is the most common clinical sign followed by scratching. Other neurologic signs noted are facial nerve deficits, seizures, vestibular syndrome, ataxia, menace deficit, proprioceptive deficits, head tremor, temporal muscle atrophy, and multifocal central nervous system signs. MRI is the diagnostic of choice, but computed tomography can also be used.
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Giorgi M, Lee HK, Rota S, Owen H, De Vito V, Demontis MP, Varoni MV. Pharmacokinetic and Pharmacodynamic Assessments of Tapentadol in Yellow-Bellied Slider Turtles (Trachemys Scripta Scripta) after a Single Intramuscular Injection. J Exot Pet Med 2015. [DOI: 10.1053/j.jepm.2015.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Axiak-Bechtel SM, Tsuruta K, Amorim J, Donaldson R, Lino G, Honaker A, Monibi F, Dodam J, DeClue A. Effects of tramadol and o-desmethyltramadol on canine innate immune system function. Vet Anaesth Analg 2015; 42:260-8. [DOI: 10.1111/vaa.12201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/06/2014] [Indexed: 11/26/2022]
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Giorgi M, Salvadori M, De Vito V, Owen H, Demontis MP, Varoni MV. Pharmacokinetic/pharmacodynamic assessments of 10 mg/kg tramadol intramuscular injection in yellow-bellied slider turtles (Trachemys scripta scripta
). J Vet Pharmacol Ther 2015; 38:488-96. [DOI: 10.1111/jvp.12206] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 01/07/2015] [Indexed: 11/30/2022]
Affiliation(s)
- M. Giorgi
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - M. Salvadori
- Veterinary Exotic Center Exoticvet; San Giuliano Terme Pisa Italy
| | - V. De Vito
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - H. Owen
- School of Veterinary Sciences; University of Queensland; Gatton Brisbane Qld Australia
| | - M. P. Demontis
- Department of Veterinary Medicine; University of Sassari; Sassari Italy
| | - M. V. Varoni
- Department of Veterinary Medicine; University of Sassari; Sassari Italy
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Cardozo LB, Cotes LC, Kahvegian MAP, Rizzo MFCI, Otsuki DA, Ferrigno CRA, Fantoni DT. Evaluation of the effects of methadone and tramadol on postoperative analgesia and serum interleukin-6 in dogs undergoing orthopaedic surgery. BMC Vet Res 2014; 10:194. [PMID: 25193623 PMCID: PMC4173003 DOI: 10.1186/s12917-014-0194-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 08/15/2014] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Acute postsurgical pain is of great interest due to potential risk of becoming chronic if not treated properly, worsening patient's recovery and quality of life. Twenty-eight dogs with ruptured cruciate ligaments were divided into three groups that received intramuscular injections of 4 mg/kg of tramadol (TRA), 0.5 mg/kg of methadone (MET0.5), or 0.7 mg/kg of methadone (MET0.7). Physiological parameters (heart and respiratory rates and blood pressure) were evaluated at specified times: baseline (TBL), 1 (T1), 2 (T2), 4 (T4), 6 (T6), and 24 (T24) hours after premedication. Pain scores were described by visual analogue scale (VAS), modified Glasgow Composite, and Colorado University Acute Pain scales. Blood samples for measurement of interleukin (IL)-6 were collected at TBL, T1, T6, and T24. This was a prospective, randomised investigation to evaluate the efficacy of tramadol and methadone as premedications in dogs undergoing osteotomies. RESULTS There were no statistically significant differences between groups with respect to age, weight, gender, surgery time, and time to extubation. Heart rate, respiratory rate, and blood pressure values were maintained within acceptable ranges, and a reduction was observed at T2 in MET0.5 and MET0.7 compared with TBL. Increases in VAS scores were observed in TRA at T4 compared with TBL, T1, and T24 and between T1 and T6 (p < 0.001). In MET0.5, there was significant increase in VAS score at T4 compared with T1 (p < 0.001). TRA and MET0.5 showed significantly higher mean ± SD VAS scores (3.4 ± 2.5 and 2.5 ± 2.6, respectively) than MET0.7 (1.1 ± 1.5) at T4 (p < 0.001). TRA showed greater demand of rescue analgesia (four animals in T4 and two in T6) (p < 0.037). There were no statistically significant differences in sedation scores, Colorado Scale scores, or interleukin levels between groups and time points. CONCLUSIONS Methadone given as premedication in doses of 0.7 mg/kg was better at controlling pain compared with lower doses and tramadol. However, dosage increases, administered as rescue analgesia, promoted adequate pain control even in tramadol group. Influence of these analgesics on IL-6 release could not be demonstrated, but significant levels were not found.
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Indrawirawan Y, McAlees T. Tramadol toxicity in a cat: case report and literature review of serotonin syndrome. J Feline Med Surg 2014; 16:572-8. [PMID: 24966282 PMCID: PMC11148885 DOI: 10.1177/1098612x14539088] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
OVERVIEW Tramadol toxicity has not previously been reported in a cat. CASE SUMMARY This report describes the clinical signs, diagnosis and treatment of tramadol toxicity, manifesting as serotonin syndrome, in a cat in Australia. PRACTICAL RELEVANCE For any cat with suspicion of serotonin syndrome, in particular secondary to tramadol overdose, it is recommended that decontamination, monitoring and supportive care are instituted as soon as clinical signs develop. Prolonged hospitalisation may be required in the event of a severe overdose. LITERATURE REVIEW The literature relating to the pharmacology of tramadol and tramadol overdose, clinical manifestations of tramadol overdose, and serotonin syndrome in cats, humans and dogs is reviewed. Recommended treatment for tramadol overdose and serotonin syndrome is also discussed.
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Affiliation(s)
| | - Trudi McAlees
- Animal Accident and Emergency, Melbourne, Victoria, Australia
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Vullo C, Kim TW, Meligrana M, Marini C, Giorgi M. Pharmacokinetics of tramadol and its major metabolite after intramuscular administration in piglets. J Vet Pharmacol Ther 2014; 37:603-6. [DOI: 10.1111/jvp.12133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 03/23/2014] [Indexed: 11/29/2022]
Affiliation(s)
- C. Vullo
- School of Biosciences and Veterinary Medicine; University of Camerino; Matelica Macerata Italy
| | - T.-W. Kim
- College of Veterinary Medicine; Chungnam National University; Daejeon South Korea
| | - M. Meligrana
- School of Biosciences and Veterinary Medicine; University of Camerino; Matelica Macerata Italy
| | - C. Marini
- School of Biosciences and Veterinary Medicine; University of Camerino; Matelica Macerata Italy
| | - M. Giorgi
- Department of Veterinary Sciences Via Livornese (lato monte); San Piero a Grado; Pisa; San Piero a Grado Italy
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Kögel B, Terlinden R, Schneider J. Characterisation of tramadol, morphine and tapentadol in an acute pain model in Beagle dogs. Vet Anaesth Analg 2014; 41:297-304. [PMID: 24576316 DOI: 10.1111/vaa.12140] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 07/15/2013] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the analgesic potential of the centrally acting analgesics tramadol, morphine and the novel analgesic tapentadol in a pre-clinical research model of acute nociceptive pain, the tail-flick model in dogs. STUDY DESIGN Prospective part-randomized pre-clinical research trial. ANIMALS Fifteen male Beagle dogs (HsdCpb:DOBE), aged 12-15 months. METHODS On different occasions separated by at least 1 week, dogs received intravenous (IV) administrations of tramadol (6.81, 10.0 mg kg(-1) ), tapentadol (2.15, 4.64, 6.81 mg kg(-1) ) or morphine (0.464, 0.681, 1.0 mg kg(-1) ) with subsequent measurement of tail withdrawal latencies from a thermal stimulus (for each treatment n = 5). Blood samples were collected immediately after the pharmacodynamic measurements of tramadol to determine pharmacokinetics and the active metabolite O-demethyltramadol (M1). RESULTS Tapentadol and morphine induced dose-dependent antinociception with ED50-values of 4.3 mg kg(-1) and 0.71 mg kg(-1) , respectively. In contrast, tramadol did not induce antinociception at any dose tested. Measurements of the serum levels of tramadol and the M1 metabolite revealed only marginal amounts of the M1 metabolite, which explains the absence of the antinociceptive effect of tramadol in this experimental pain model in dogs. CONCLUSIONS AND CLINICAL RELEVANCE Different breeds of dogs might not or only poorly respond to treatment with tramadol due to low metabolism of the drug. Tapentadol and morphine which act directly on μ-opioid receptors without the need for metabolic activation are demonstrated to induce potent antinociception in the experimental model used and should also provide a reliable pain management in the clinical situation. The non-opioid mechanisms of tramadol do not provide antinociception in this experimental setting. This contrasts to many clinical situations described in the literature, where tramadol appears to provide useful analgesia in dogs for post-operative pain relief and in more chronically pain states.
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Affiliation(s)
- Babette Kögel
- Grünenthal GmbH, Grünenthal Innovation, Global Preclinical R&D, Aachen, Germany
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Pharmacokinetics of the novel atypical opioid tapentadol after intravenous, intramuscular and subcutaneous administration in cats. Vet J 2013; 198:620-4. [DOI: 10.1016/j.tvjl.2013.09.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 08/28/2013] [Accepted: 09/08/2013] [Indexed: 11/19/2022]
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Davila D, Keeshen TP, Evans RB, Conzemius MG. Comparison of the analgesic efficacy of perioperative firocoxib and tramadol administration in dogs undergoing tibial plateau leveling osteotomy. J Am Vet Med Assoc 2013; 243:225-31. [DOI: 10.2460/javma.243.2.225] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Giorgi M, Meizler A, Mills PC. Pharmacokinetics of the novel atypical opioid tapentadol following oral and intravenous administration in dogs. Vet J 2012; 194:309-13. [DOI: 10.1016/j.tvjl.2012.05.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2012] [Revised: 05/14/2012] [Accepted: 05/22/2012] [Indexed: 01/04/2023]
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Giorgi M, Portela DA, Breghi G, Briganti A. Pharmacokinetics and pharmacodynamics of zolpidem after oral administration of a single dose in dogs. Am J Vet Res 2012; 73:1650-6. [DOI: 10.2460/ajvr.73.10.1650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Quantification of tapentadol in canine plasma by HPLC with spectrofluorimetric detection: Development and validation of a new methodology. J Pharm Biomed Anal 2012; 67-68:148-53. [DOI: 10.1016/j.jpba.2012.04.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 04/12/2012] [Accepted: 04/18/2012] [Indexed: 11/22/2022]
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Abstract
Numerous analgesics are available for use in animals, but only a few have been used or studied in zoologic species. Tramadol is a relatively new analgesic that is available in an inexpensive, oral form, and is not controlled. Studies examining the effect of tramadol in zoologic species suggest that significant differences exist in pharmacokinetics parameters as well as analgesic dynamics. This article reviews the current literature on the use of tramadol in humans, domestic animals, and zoologic species.
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Affiliation(s)
- Marcy J Souza
- Department of Comparative Medicine, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
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Jang HS, Jang IS, Lee MG. The effects of tramadol on electroencephalographic spectral parameters and analgesia in rats. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2010; 14:191-8. [PMID: 20631893 DOI: 10.4196/kjpp.2010.14.3.191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Revised: 06/10/2010] [Accepted: 06/20/2010] [Indexed: 11/15/2022]
Abstract
The effects of different doses of tramadol on analgesia and electroencephalographic (EEG) spectral parameters were compared in rats. Saline or tramadol 5, 10, 20 or 40 mg/kg was administered. The degree of analgesia was evaluated by tail-flick latency, and the degree of seizure was measured using numerical seizure score (NSS). Additionally, band powers, median power frequency and spectral edge frequency 95 were measured to quantify the EEG response. All doses of tramadol produced spike-wave discharge. Tramadol significantly and dose-dependently increased the analgesia, but these effects did not correspond with the changes in the EEG spectral parameters. NSS significantly increased in the Tramadol 20 and 40 mg/kg treatment groups compared to the Control and TRA5 groups, and two rats given 40 mg/kg had convulsions. In conclusion, tramadol dose-dependently increased the analgesic effect, and the 10 mg/kg dose appears to be a reliable clinical dose for analgesia in rats, but dose-dependent increases in analgesia and seizure severity did not correlate with EEG spectral parameters.
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Affiliation(s)
- Hwan-Soo Jang
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Korea
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