EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Electroretinogram as a possible monitor of anesthetic depth


Graefe's Archive for Clinical & Experimental Ophthalmology 224(5): 473-476
Electroretinogram as a possible monitor of anesthetic depth
The effects of volatile anesthetics, i.e., methoxyflurane, halothane and enflurane, on the electroretinogram (ERG) were studied in 15 albino rabbits. The ERG was analyzed in terms of the a-wave, and the first oscillatory component (01) in the b-wave. The 01 peak latency showed a significant dose-related prolongation when anesthetic end-tidal concentrations were in excess of 0.8 minimum alveolar concentration (MAC). One MAC, a measure of anesthetic potency, is the end-tidal concentration of an anesthetic at 1 atmosphere that induces immobility in 50% of animals against a noxious stimulus. The amplitudes of the a-wave and the 01 decreased in dose-dependent manners, but their changes were less striking than those of the 01 latency. The peak latency of the a-wave remained unchanged. We conclude that the 01 peak latency is a useful monitor of the depth of inhalational anesthesia.

Accession: 005349940

PMID: 3758695

DOI: 10.1007/bf02173367

Download PDF Full Text: Electroretinogram as a possible monitor of anesthetic depth



Related references

Anesthetic-depth monitor apparatus. Official Gazette of the United States Patent & Trademark Office Patents 1252(2), Nov 13, 2001

Monitoring of the anesthetic depth by anesthesia and brain monitor. Japanese Journal of Anesthesiology 33(11 SUPPL): S205, S212, 11, 1984

Can the amount of heart rate variability be used as a monitor of anesthetic depth?. Anesthesiology (Hagerstown) 79(3A): A1241, 1993

Electroencephalographic power spectrum analysis as a monitor of anesthetic depth in horses. Veterinary Surgery 20(5): 362-371, 1991

Use of the bispectral index as a monitor of anesthetic depth in cats anesthetized with isoflurane. American Journal of Veterinary Research 64(12): 1534-1541, 2003

Toward the fundamental unit of anesthetic depth Positron emission tomography suggests that bispectral index monitors an important component of anesthetic depth. Anesthesiology (Hagerstown) 85(3A): A174, 1996

Prospective, observational study of the depth of anesthesia during oocyte retrieval using a total intravenous anesthetic technique and the Bispectral index monitor. Fertility and Sterility 96(3): 635-637, 2011

Comparison of use of an infrared anesthetic gas monitor and refractometry for measurement of anesthetic agent concentrations. American Journal of Veterinary Research 72(10): 1299-1304, 2012

Evaluation of anesthetic vaporizers: application of the Normac infrared anesthetic agent monitor AA 102. Masui. Japanese Journal of Anesthesiology 36(5): 778-783, 1987

Evaluation of anesthetic vaporizers application of normac ir anesthetic agent monitor aa 102. Japanese Journal of Anesthesiology 36(5): 778-783, 1987