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ISSN 0185-3252 (Print)
Revista de la Asociación Médica del Centro Médico ABC

2002, Number 1

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An Med Asoc Med Hosp ABC 2002; 47 (1)

Are hemodynamic parameters a sign of anesthetic deepth?

Cendón OM, Olivares MH, Guadarra QF, Porras QR

Language: Spanish
References: 30
Page: 12-18
PDF size: 61.26 Kb.


ABSTRACT

Anesthesiologists in their daily practice have to be sure of their patient’s hypnotic state to protect them form the stress they would experience if they were conscious during an operation. There is no direct way of measuring the hypnotic state but the clinical signs observed during an operation are an indirect way to measure the hypnosis, unfortunately they are limited. Electroencephalographic studies have come to develop the Bi-spectral Index monitor (BIS) which measure the changes in hypnotic state in a quantitative way. This study presents 20 patients ASA I undergoing elective procedures with general anesthesia. They were monitored in the standard form plus the BIS monitor, hemodynamical and BIS changes were recorded. The Spearman range correlation coefficient was used for statistical analysis. Even Though there were hemodynamical changes from the baseline during surgical events, BIS readings were always under 55. This number indicates a moderate or deep hypnotic state. As a conclusion, we consider BIS to be a reliable monitor of the hypnotic state and together with other parameters they can assure a good anesthetic state, without the need to increase the anesthetic agent.


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