Intraocular pressure, Alfentanil pretreatment
Springer Online Journal Archives 1860-2000
Chemistry and Pharmacology
Summary The effects of pretreatment with alfentanil on intraocular pressure (IOP) were investigated in 40 patients undergoing ophthalmic surgery. Patients were randomly allocated to two study groups. Group 1 patients (n=20) received alfentanil 15 μg · kg−1, vecuronium 0.01 mg · kg−1, thiopentone 3-4 mg · kg−1, and suxamethonium 1 mg · kg−1 for anaesthetic induction, whereas patients in group 2 (n = 20) received vecuronium 0.01 mg · kg−1, thiopentone 3–4 mg · kg−1, and suxamethonium 1 mg · kg−1. A total of seven measurements of intraocular pressure were taken in each patient, starting before premedication and ending after extubation of the trachea. In group 2 patients, there was an increase in IOP after endotracheal incubation. In group 1 patients, a decrease in IOP occurred which was related to the decrease in arterial blood pressure. We conclude that alfentanil pretreatment can prevent the increase in IOP following suxamethonium administration.
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