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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Defining the dose range for esmolol used in electroconvulsive therapy hemodynamic attenuation.

We evaluated the clinical effectiveness of esmolol, an ultra-short-acting, beta-adrenergic receptor blocking drug, to control the sinus tachycardia and increase in arterial blood pressure induced by electroconvulsive therapy (ECT). Each of 20 patients, ASA physical status I-III, participated in a double-blind, randomized Latin-Square study involving two matched-pair trials (placebo versus esmolol given as a 500-micrograms/kg bolus followed by either 300 micrograms.kg-1.min-1 [high dose], 200 micrograms.kg-1.min-1 [medium dose], or 100 micrograms.kg-1.min-1 [low dose] infusion of esmolol) during ECT. Each patient acted as his or her own control (total number of ECT procedures were 160). We administered a 1-min bolus of placebo (normal saline) or esmolol at the rate of 500 micrograms.kg-1.min-1 followed by either high-, medium-, or low-dose esmolol or placebo for an additional 3 min. We then induced anesthesia with methohexital (1 mg/kg) and succinylcholine (0.5 mg/kg) IV. Ninety seconds after the administration of succinylcholine, the electrical stimulus was applied to induce seizure. The infusion of placebo or esmolol was discontinued 3 min after the electrical stimulus. Significant decreases were found in mean heart rate from minute 3 until minute 7 and in the maximum heart rate. The mean of each patient's maximum heart rate after seizure changed from 147 +/- 18 bpm in placebo patients to 112 +/- 20 bpm in high-dose esmolol patients; to 121 +/- 23 bpm in medium-dose esmolol patients; and to 124 +/- 20 bpm in low-dose esmolol patients.(ABSTRACT TRUNCATED AT 250 WORDS)[1]

References

  1. Defining the dose range for esmolol used in electroconvulsive therapy hemodynamic attenuation. Howie, M.B., Hiestand, D.C., Zvara, D.A., Kim, P.Y., McSweeney, T.D., Coffman, J.A. Anesth. Analg. (1992) [Pubmed]
 
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