Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Equine /     
 
Nociceptive indicators in isoflurane-anaesthetized horses
Which method is the best to investigate nociception in horses: electroencephalogramm, mean arterial blood pressure or pulse rate? This interesting and important question was evaluated in this study from Norway on eight stallions undergoing castration.

This study was performed to evaluate Fourier-transformed electroencephalographic (EEG) variables, mean arterial blood pressure (MAP) and pulse rate as nociceptive indicators in isoflurane-anaesthetized horses.

Five standardbred and three Norwegian cold-blooded trotter stallions undergoing castration, aged 24 years, mass 378538 kg were included.

All horses received intravenous (IV) detomidine (10 g kg1 IV) and butorphanol (0.01 mg kg1 IV). Additional detomidine (4 g kg1 IV) was administered in the induction area.
Anaesthesia was induced with ketamine (2.5 mg kg1 IV) and diazepam (40 g kg1 IV), and maintained for 30 minutes with isoflurane (end-tidal concentration of 1.4%) vaporized in oxygen.

The electroencephalogram, MAP and pulse rate were recorded for 15 minutes, beginning 5 minutes before skin incision. Differences between the mean values of recordings taken before, and during surgery were calculated and tested for significant differences using a two-sided Student`s t-test.

Results: A significant rise in MAP and a fall in pulse rate were found. No significant change was found in any EEG variable.

Thus, of the variables evaluated, MAP seems to be the most sensitive and reliable indicator of nociception in isoflurane-anaesthetized horses.


Source: Haga, Henning A & Dolvik, Nils I (2005): Electroencephalographic and cardiovascular variables as nociceptive indicators in isoflurane-anaesthetized horses. In: Veterinary Anaesthesia and Analgesia 32 (3), 128-135.




Tell a friend   |   Print version   |   Send this article

EQUINE

CT diagnosis of fatigue fracture of Mt 3 in young adult horsesmembers
Two young adult endurance horses were presented for investigation of sudden-onset forelimb lameness during competition. Clinical examination revealed a severe forelimb lameness and pain on palpation of the proximal palmar metacarpal area. Initial radiographic survey of the affected forelimb was unremarkable in both cases. A week of box rest resulted in only a mild improvement in the lameness. A second radiographic examination did not reveal any significant abnormalities. The history is very suspicious for a fracture, especially a fatigue fracture. How was it diagnosed and treated finally?

  • Two regimens of lidocaine infusion in horses undergoing laparotomy for colicmembers
  • Biofilms of Candida spp. from the ocular conjunctiva of horses members
  • PARR clonality testing in a horse with a solitary retropharyngeal lymphomamembers
  • New sensor design for buccal pulse oximetry in horsesmembers
  • Uterine isolates and antimicrobial susceptibility in mares with post-partum metritismembers
  • Right ventricular function during acute exacerbation of severe asthma in horsesmembers
  • Biuret versus refractometry methods to measure serum total proteins in ruminantsmembers
  • Steatitis in equids - clinical and ultrasonographical findingsmembers
  • Correlation of overground endoscopy to resting laryngeal function in racehorsesmembers
  • Pigment retinopathy in warmblood horses with EMNDmembers
  • Maxillary odontogenic myxoma in six young horsesmembers
  • Managing equine ataxia due to cervical vertebral stenotic myelopathymembers


  • [ Home ] [ About ] [ Contact / Request ][ Disclaimer ]

    Copyright © 2001-2016 VetContact GmbH
    All rights reserved