Search our site 
 
Advanced Search
 
Home | Exam dates | Contact us | About us | Testimonials |
 
 

map
You are in Home >> Resources >> Physics and equipment >> Depth of anaesthesia


History

Created: 13/7/2005
 
Dr John Snow (1813-1858)

Dr Snow made the first documented attempt to assess anaesthetic depth in 1845. He described five levels of anaesthesia with progressive impairment of mental function and voluntary movement, until surgical anaesthesia was reached. The fifth degree was characterised by weak, irregular respiratory movements and was described as the stage preceding death.
He is also reputed to have administered chloroform to Queen Victoria, for the birth of Prince Leopold in 1853 and later for the birth of Princess Beatrice in 1857.









Dr Arthur E. Guedel (1883-1956)

In 1937, Dr Arthur E. Guedel refined this system and developed a chart classification of ether anaesthesia based on lacrimation, pupil size and position, respiratory pattern and peripheral movement. This method of staging was designed to avoid the hazards of too deep anaesthesia.
ArticleDate:20050713
SiteSection: Article
 
   
    
                                            
  Posting rules

     To view or add comments you must be a registered user and login  




Login Status  

You are not currently logged in.
UK/Ireland Registration
Overseas Registration

  Forgot your password?








 
All rights reserved © 2021. Designed by AnaesthesiaUK.

{Site map} {Site disclaimer} {Privacy Policy} {Terms and conditions}

 Like us on Facebook 

vp