{"title":"ABSTRACTS OF SCIENTIFIC PAPERS PRESENTED AT THE SPRING MEETING OF THE ASSOCIATION OF VETERINARY ANAESTHETISTS, EDINBURGH, MARCH 1998","authors":"","doi":"10.1111/j.1467-2995.1998.tb00171.x","DOIUrl":"https://doi.org/10.1111/j.1467-2995.1998.tb00171.x","url":null,"abstract":"","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"25 1","pages":"Pages 57-62"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1467-2995.1998.tb00171.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72229042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of low dose ketamine on haemodynamic and electroencephalographic variables during surgery in isoflurane anaesthetised horses","authors":"K. Otto, S. Voigt, S. Piepenbrock, E. Deegen","doi":"10.1111/J.1467-2995.1998.TB00162.X","DOIUrl":"https://doi.org/10.1111/J.1467-2995.1998.TB00162.X","url":null,"abstract":"SUMMARY The dissociative anaesthetic ketamine is reported to provide potent analgesia after administration of subanaesthetic doses in human beings. To evaluate the analgesic effects of ketamine as an adjunct to inhalation anaesthesia in horses, haemodynamic and electroencephalographic changes were recorded for 10 min after injection of ketamine (0.5 mg/kg iv; n=7) or equal volumes of 0.9% NaCl solution (n=5) in surgically stimulated horses anaesthetised at approximately 1.3% end-tidal concentration of isoflurane. Neither the haemodynamic variables (mean arterial blood pressure and heart rate) nor the quantitated EEG variables (theta/delta ratio, alpha/delta ratio, beta/delta ratio, median power frequency) and 80% spectral edge frequency were affected significantly by the ketamine dose used. Comparing data obtained from both groups of horses, our results suggest that iv administration of 0.5 mg/kg bwt of ketamine was ineffective in suppressing haemodynamic and electroencephalographic responses to surgical stimulation.","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"5 1","pages":"8-12"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73066660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Golder, P. Pascoe, C. S. Bailey, J. Ilkiw, L. Tripp
{"title":"The effect of epidural morphine on the minimum alveolar concentration of isoflurane in cats","authors":"F. Golder, P. Pascoe, C. S. Bailey, J. Ilkiw, L. Tripp","doi":"10.1111/J.1467-2995.1998.TB00170.X","DOIUrl":"https://doi.org/10.1111/J.1467-2995.1998.TB00170.X","url":null,"abstract":"SUMMARY This study was undertaken to evaluate the effect of 3 different doses of epidurally administered morphine sulphate on the minimum alveolar concentration (MAC) of isoflurane in healthy cats. Five 4-year-old, spayed female cats weighing 4.7 ± 0.8 kg were allocated randomly to receive one of 3 doses of morphine on each study day. The 3 doses of morphine were 0.05, 0.1 and 0.2 mg/kg bwt and each cat was studied 3 times so that each cat received all doses. On each study day, cats were anaesthetised with isoflurane and instrumented. The MAC of isoflurane was determined in triplicate and morphine sulphate was administered via an epidural catheter chronically implanted prior to the study. Maximum MAC reduction was determined over the following 2 h. At the end of the study cats were allowed to recover. There was a significant reduction in MAC of isoflurane, with all doses of epidural morphine (P","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"15 1","pages":"52-56"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74774443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Blood pressure measurement in anaesthetised sows: comparison between invasive and oscillometric methods during short term laparoscopic surgery","authors":"J.I. Cruz, N.A. Caulkett, C. Riley, A. Cruz","doi":"10.1111/j.1467-2995.1998.tb00167.x","DOIUrl":"https://doi.org/10.1111/j.1467-2995.1998.tb00167.x","url":null,"abstract":"<div><p>A study comparing invasive versus oscillometric techniques for the measurement of arterial blood pressure was carried out in 4 anaesthetised sows undergoing laparoscopy. Regression analysis was used to determine the correlation coefficient.</p><p>Bias was 19.2 for systolic, 20.6 for mean and 18.8 for diastolic. Both bias and precision showed a consistent underestimation of blood pressure values recorded by oscillometry.</p><p>These results do not support the use of the oscillometric method when accurate figures for blood pressure are required in sows.</p></div>","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"25 1","pages":"Pages 37-40"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1467-2995.1998.tb00167.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72283374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Ramseyer, N. Schmucker, U. Schatzmann, A. Busato, Y. Moens
{"title":"Antagonism of detomidine sedation with atipamezole in horses","authors":"B. Ramseyer, N. Schmucker, U. Schatzmann, A. Busato, Y. Moens","doi":"10.1111/j.1467-2995.1998.tb00169.x","DOIUrl":"https://doi.org/10.1111/j.1467-2995.1998.tb00169.x","url":null,"abstract":"<div><p>The reversal of detomidine-induced sedation with iv atipamezole was studied in 6 horses. All horses were injected iv with 10 μg and 20 μg/kg bwt detomidine and 15 min later this was followed by 6-, 8- and 10-fold doses of iv atipamezole. Atipamezole caused a quick arousal in all horses with minor side effects. Bradycardia, rhythm disturbances and head ptosis caused by detomidine were not abolished completely at the end of the 15 min observation period, even with the highest atipamezole doses. All horses remained slightly sedated but without ataxia. There were no significant differences in head height, heart rate and sedation score between the different doses of atipamezole for either dose of detomidine. According to the degree of sedation, doses of 100 μg to 160 μg/kg bwt atipamezole are adequate to antagonise detomidine-induced sedation in the horse.</p></div>","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"25 1","pages":"Pages 47-51"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1467-2995.1998.tb00169.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72283379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Ramseyer, N. Schmucker, U. Schatzmann, A. Busato, Y. Moens
{"title":"Antagonism of detomidine sedation with atipamezole in horses","authors":"B. Ramseyer, N. Schmucker, U. Schatzmann, A. Busato, Y. Moens","doi":"10.1111/J.1467-2995.1998.TB00169.X","DOIUrl":"https://doi.org/10.1111/J.1467-2995.1998.TB00169.X","url":null,"abstract":"SUMMARY The reversal of detomidine-induced sedation with iv atipamezole was studied in 6 horses. All horses were injected iv with 10 μg and 20 μg/kg bwt detomidine and 15 min later this was followed by 6-, 8- and 10-fold doses of iv atipamezole. Atipamezole caused a quick arousal in all horses with minor side effects. Bradycardia, rhythm disturbances and head ptosis caused by detomidine were not abolished completely at the end of the 15 min observation period, even with the highest atipamezole doses. All horses remained slightly sedated but without ataxia. There were no significant differences in head height, heart rate and sedation score between the different doses of atipamezole for either dose of detomidine. According to the degree of sedation, doses of 100 μg to 160 μg/kg bwt atipamezole are adequate to antagonise detomidine-induced sedation in the horse.","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"192 1","pages":"47-51"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85467047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Depth of anaesthesia","authors":"S. Petersen‐Felix","doi":"10.1111/J.1467-2995.1998.TB00161.X","DOIUrl":"https://doi.org/10.1111/J.1467-2995.1998.TB00161.X","url":null,"abstract":"SUMMARY One hundred and fifty years after the first general anaesthetic in 1846 our knowledge about the mechanisms of general anaesthetics is still very sparse. The concept ‘depth of anaesthesia’ was introduced by John Snow (1847). He described ‘5° of narcotism’. Because one single agent had to provide all the components of general anaesthesia, the main problem for the anaesthetist was to avoid morbidity and mortality associated with excessively deep anaesthesia. The introduction of curare in 1942 allowed muscle relaxation required for surgery during a lighter level of anaesthesia, but also changed the emphasis from the problem of too deep anaesthesia and death, to too light anaesthesia and litigation. The problem of awareness during general anaesthesia with muscle relaxants provided the main impetus for monitoring depth of anaesthesia. During daily clinical practice the anaesthesiologist relies on clinical signs to evaluate anaesthetic depth, although several studies have shown a poor correlation between the 2 (Cullen et al . 1972; Evans and Davies 1984; Russell 1993). Different methods have been used in attempts to measure anaesthetic depth (Evans and Davies 1984; Stanski 1994), but none have been developed to a state where they can be used routinely in the operating theatre. This review will cover some of the parameters used to evaluate anaesthetic depth.","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"5 1","pages":"4-7"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89174326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Report of the AVA Education Trust","authors":"","doi":"10.1111/j.1467-2995.1998.tb00173.x","DOIUrl":"https://doi.org/10.1111/j.1467-2995.1998.tb00173.x","url":null,"abstract":"","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"25 1","pages":"Page 63"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1467-2995.1998.tb00173.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72247587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Changes in heart rate, mean arterial pressure, blood biochemistry, plasma glucose, plasma lactate and some plasma enzymes during sufentanil/halothane anaesthesia in horses","authors":"P. van Dijk, S.K. Nyks","doi":"10.1111/j.1467-2995.1998.tb00163.x","DOIUrl":"https://doi.org/10.1111/j.1467-2995.1998.tb00163.x","url":null,"abstract":"<div><p>Nine horses were each anaesthetised for 40 min using SufentaniVhalothane. No surgery was performed. After premedication (detomidine 5 pgkg bwt iv) induction of anaesthesia was achieved by a combination of guaiphenesinlthiopentone. Anaesthesia was maintained by inhalation of halothane (0.8%) in oxygen. Six horses (Group 1) received 1 pgkg bwt sufentanil followed by a second injection (1 pg/kg bwt) after 20 min. Three horses (Group 2) received 2 pg/kg bwt sufentanil also followed by a second injection (2 pg/kg bwt) after 20 min. Each sufentanil injection produced a slight decrease in mean arterial blood pressure with a gradual return to the initial pressure. Bradycardia was also observed. Sufentanil injection induced apnoea needing artificial ventilation. Arterial blood was sampled for analysis during the anaesthetic procedure. At the end of anaesthesia, 1 h and 24 h after rising, venous blood was sampled to determine concentrations of lactate dehydrogenase (LDH), aspartate aminotransferase (AST) and creatine phosphokinase (CPK). Values obtained were compared with values in blood taken before premedication. Plasma glucose and lactate concentrations just before sufentanil administration, at the end of anaesthesia and 1 h after rising were compared to control values. Plasma glucose concentration increased significantly during anaesthesia but returned to normal values 1 h after rising. All other parameters stayed within physiological ranges. In both groups spontaneous respiration returned 20–25 min after the second sufentanil injection. Recovery was uneventful.</p></div>","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"25 1","pages":"Pages 13-18"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1467-2995.1998.tb00163.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72283380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of low dose ketamine on haemodynamic and electroencephalographic variables during surgery in isoflurane anaesthetised horses","authors":"K.A. Otto , S. Voigt , S. Piepenbrock , E. Deegen","doi":"10.1111/j.1467-2995.1998.tb00162.x","DOIUrl":"https://doi.org/10.1111/j.1467-2995.1998.tb00162.x","url":null,"abstract":"<div><p>The dissociative anaesthetic ketamine is reported to provide potent analgesia after administration of subanaesthetic doses in human beings. To evaluate the analgesic effects of ketamine as an adjunct to inhalation anaesthesia in horses, haemodynamic and electroencephalographic changes were recorded for 10 min after injection of ketamine (0.5 mg/kg iv; n=7) or equal volumes of 0.9% NaCl solution (n=5) in surgically stimulated horses anaesthetised at approximately 1.3% end-tidal concentration of isoflurane. Neither the haemodynamic variables (mean arterial blood pressure and heart rate) nor the quantitated EEG variables (theta/delta ratio, alpha/delta ratio, beta/delta ratio, median power frequency) and 80% spectral edge frequency were affected significantly by the ketamine dose used. Comparing data obtained from both groups of horses, our results suggest that iv administration of 0.5 mg/kg bwt of ketamine was ineffective in suppressing haemodynamic and electroencephalographic responses to surgical stimulation.</p></div>","PeriodicalId":100854,"journal":{"name":"Journal of Veterinary Anaesthesia","volume":"25 1","pages":"Pages 8-12"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1467-2995.1998.tb00162.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72283381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}