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Korean J Anesthesiol. 1986 Apr;19(2):128-134. Korean. Original Article.
Park JD , Hong JG .
Department of Anesthesiology, Kyungpook University Medical School, Taegu, Korea.
Abstract

The effects of muscle relaxants and intravenous anesthetics on intraocular pressure(IOP) were studied in 40 patients ranging in age from 12~63 years and undergoning elective non-ophthalmic surgery. IOP was measured with the PErkins Applanation Tonometer before induction, 1 minute and 2 minutes after intravenous anesthesia, 1 minute after succinylcholine and 1 minute after intubation. The patients were divided into 4 groups: thiopental+succinylcholine+intubation (group A, control group) : pnacuronium pretreatment+thiopental+succinylcholine+intubation (group B): ketamine+succinylcholine+intubation (group C): and, pancuronium+ketamine+succinylcholine+intubation(group D). The results were as follows: 1) In group A, IOP changes following thiopental (5mg/kg) administration showed a highly significant decrease (p<0.01) after 1 minute and significant decrease(p<0.05) after 2 minutes compared with the control value. In group B, IOP changes following thiopental admistration decreased significantly(p<0.05) after 1 minute and 2 minutes compared with the control value. 2) The IOP changes following ketamine(2mg/kg) administration in group C and D showed mild increases or decreases and were not statiscally significant(p>0.05). 3)IOP changes after 1 minute following succinylcholine(1mg/kg) administration showed significant increases(p<0.05) in group A, C and highly significant increases(p<0.01) in group D. IOP changes after 1 minute of endotracheal intubation showed highly significant increases (p<0.01) compared with the control value in group A, C and D. 4) Pretreatment with a mondepolarizing muscle reaxant could not prevent the increase in IOP following succinylcholine administration.

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