rss
Br J Ophthalmol 2002;86:1107-1108 doi:10.1136/bjo.86.10.1107
  • Scientific correspondence

Entonox as an analgesic agent during panretinal photocoagulation

  1. H L Cook1,
  2. R S B Newsom1,
  3. E Mensah1,
  4. M Saeed1,
  5. D James2,
  6. T J ffytche1
  1. 1Department of Ophthalmology, St Thomas’s Hospital, London, UK
  2. 2Department of Anaesthesia, St Thomas’s Hospital, London, UK
  1. Correspondence to: Helen L Cook, Moorfields Eye Hospital, City Road, London EC1V 2PD, UK; HelenLCook{at}aol.com
  • Accepted 29 April 2002

Abstract

Background/aims: Panretinal photocoagulation (PRP) reduces the risk of visual loss in proliferative diabetic retinopathy but some patients cannot tolerate PRP because of pain. Inhaled Entonox was evaluated as an analgesic during PRP.

Methods: A randomised, crossover, double masked pilot study was performed. Patients inhaled either air or Entonox and half the PRP was applied. The treatment was completed with the alternate inhaled gas. Patients graded pain experienced during both stages of the treatment using a visual analogue scale. Pain scores were compared using a paired t test.

Results: 20 patients participated. Mean pain scores from the Entonox and air treatments were 2.94 (SD 2.73) versus 3.73 (SD 3.20) respectively (p<0.03).

Conclusion: Entonox can be used as a safe and effective analgesic agent during PRP treatment.

Footnotes

  • There were no proprietary interests.

  • This work was presented at a free paper session at the Royal College of Ophthalmologists’ Annual Congress in Birmingham in May 2001.

This Article

  1. Abstract
  2. Full text
  3. PDF

Responses

  1. Submit a response
  2. No responses published

Social bookmarking

Register for free content


Free sample
 This recent issue is free to all users to allow everyone the opportunity to see the full scope and typical content of BJO.
View free sample issue >>

Free archive
The full back archive is now available for BJO. Institutional subscribers may access the entire archive as part of their subscription. Personal subscribers will also have access to all content when logged in. Non-subscribers who register have free access to all articles published before 2006, back to volume 1 issue 1.
Register to access the free archive >>

Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.