Johanne C Krueger, Moriz A Habigt, Marius J Helmedag, Moritz Uhlig, Michaela Moss, André Bleich, René H Tolba, Rolf Rossaint, Marc Hein, Mare Mechelinck
{"title":"评估大鼠手术和肝硬化严重程度的评分参数。","authors":"Johanne C Krueger, Moriz A Habigt, Marius J Helmedag, Moritz Uhlig, Michaela Moss, André Bleich, René H Tolba, Rolf Rossaint, Marc Hein, Mare Mechelinck","doi":"10.1017/awf.2023.21","DOIUrl":null,"url":null,"abstract":"<p><p>Severity assessment in animals is an ongoing field of research. In particular, the question of objectifiable and meaningful parameters of score-sheets, as well as their best combination, arise. This retrospective analysis investigates the suitability of a score-sheet for assessing severity and seeks to optimise it for predicting survival in 89 male Sprague Dawley rats (<i>Rattus norvegicus</i>), during an experiment evaluating the influence of liver cirrhosis by bile duct ligation (BDL) on vascular healing. The following five parameters were compared for their predictive power: (i) overall score; (ii) relative weight loss; (iii) general condition score; (iv) spontaneous behaviour score; and (v) the observer's assessment whether pain might be present. Suitable cut-off values of these individual parameters and the combination of multiple parameters were investigated. A total of ten rats (11.2%; 10/89) died or had to be sacrificed at an early stage due to pre-defined humane endpoints. Neither the overall score nor any individual parameter yielded satisfactory results for predicting survival. Using retrospectively calculated cut-off values and combining the overall score with the observer's assessment of whether the animal required analgesia (dipyrone) for pain relief resulted in an improved prediction of survival on the second post-operative day. This study demonstrates that combining score parameters was more suitable than using single ones and that experienced human judgement of animals can be useful in addition to objective parameters in the assessment of severity. By optimising the score-sheet and better understanding the burden of the model on rats, this study contributes to animal welfare.</p>","PeriodicalId":7894,"journal":{"name":"Animal Welfare","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10936376/pdf/","citationCount":"0","resultStr":"{\"title\":\"Evaluation of score parameters for severity assessment of surgery and liver cirrhosis in rats.\",\"authors\":\"Johanne C Krueger, Moriz A Habigt, Marius J Helmedag, Moritz Uhlig, Michaela Moss, André Bleich, René H Tolba, Rolf Rossaint, Marc Hein, Mare Mechelinck\",\"doi\":\"10.1017/awf.2023.21\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Severity assessment in animals is an ongoing field of research. In particular, the question of objectifiable and meaningful parameters of score-sheets, as well as their best combination, arise. This retrospective analysis investigates the suitability of a score-sheet for assessing severity and seeks to optimise it for predicting survival in 89 male Sprague Dawley rats (<i>Rattus norvegicus</i>), during an experiment evaluating the influence of liver cirrhosis by bile duct ligation (BDL) on vascular healing. The following five parameters were compared for their predictive power: (i) overall score; (ii) relative weight loss; (iii) general condition score; (iv) spontaneous behaviour score; and (v) the observer's assessment whether pain might be present. Suitable cut-off values of these individual parameters and the combination of multiple parameters were investigated. A total of ten rats (11.2%; 10/89) died or had to be sacrificed at an early stage due to pre-defined humane endpoints. Neither the overall score nor any individual parameter yielded satisfactory results for predicting survival. Using retrospectively calculated cut-off values and combining the overall score with the observer's assessment of whether the animal required analgesia (dipyrone) for pain relief resulted in an improved prediction of survival on the second post-operative day. This study demonstrates that combining score parameters was more suitable than using single ones and that experienced human judgement of animals can be useful in addition to objective parameters in the assessment of severity. 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Evaluation of score parameters for severity assessment of surgery and liver cirrhosis in rats.
Severity assessment in animals is an ongoing field of research. In particular, the question of objectifiable and meaningful parameters of score-sheets, as well as their best combination, arise. This retrospective analysis investigates the suitability of a score-sheet for assessing severity and seeks to optimise it for predicting survival in 89 male Sprague Dawley rats (Rattus norvegicus), during an experiment evaluating the influence of liver cirrhosis by bile duct ligation (BDL) on vascular healing. The following five parameters were compared for their predictive power: (i) overall score; (ii) relative weight loss; (iii) general condition score; (iv) spontaneous behaviour score; and (v) the observer's assessment whether pain might be present. Suitable cut-off values of these individual parameters and the combination of multiple parameters were investigated. A total of ten rats (11.2%; 10/89) died or had to be sacrificed at an early stage due to pre-defined humane endpoints. Neither the overall score nor any individual parameter yielded satisfactory results for predicting survival. Using retrospectively calculated cut-off values and combining the overall score with the observer's assessment of whether the animal required analgesia (dipyrone) for pain relief resulted in an improved prediction of survival on the second post-operative day. This study demonstrates that combining score parameters was more suitable than using single ones and that experienced human judgement of animals can be useful in addition to objective parameters in the assessment of severity. By optimising the score-sheet and better understanding the burden of the model on rats, this study contributes to animal welfare.
期刊介绍:
Animal Welfare is an international scientific and technical journal. It publishes the results of peer-reviewed scientific research, technical studies and reviews relating to the welfare of kept animals (eg on farms, in laboratories, zoos and as companions) and of those in the wild whose welfare is compromised by human activities. Papers on related ethical, social, and legal issues and interdisciplinary papers will also be considered for publication. Studies that are derivative or which replicate existing publications will only be considered if they are adequately justified.
Papers will only be considered if they bring new knowledge (for research papers), new perspectives (for reviews) or develop new techniques. Papers must have the potential to improve animal welfare, and the way in which they achieve this, or are likely to do so, must be clearly specified in the section on Animal welfare implications.