Effects of propofol and isoflurane anesthesia on the intraocular pressure and hemodynamics of pigs.

Abstract:

:To determine the conditions under which anesthetized pigs can be used in acute noninvasive investigations of ocular hydro- and hemodynamics, the intraocular pressure (IOP) of adult pigs was recorded under the following conditions: (1) after intravenous injection of propofol plus ketamine; (2) during inhalation of isoflurane, and (3) 2 h after topical administration of bimatoprost or (4) timolol. Propofol/ketamine and isoflurane induced significant decreases in the IOP. The pulsation of the ophthalmic artery appeared at a significantly higher IOP in animals anesthetized with isoflurane than in those anesthetized with propofol/ketamine. Bimatoprost and timolol did not significantly decrease the IOP within 2 h after topical administration. It is concluded that different techniques for the acute noninvasive investigation of ocular hydro- and hemodynamics are applicable in anesthetized pigs. To test the effects of antiglaucoma agents, investigation periods longer than 2 h are required. We recommend the use of intravenous propofol/ketamine anesthesia rather than isoflurane anesthesia in future experiments using pigs.

journal_name

Ophthalmic Res

journal_title

Ophthalmic research

authors

Buehner E,Pietsch UC,Bringmann A,Foja C,Wiedemann P,Uhlmann S

doi

10.1159/000317060

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

42-6

issue

1

eissn

0030-3747

issn

1423-0259

pii

000317060

journal_volume

45

pub_type

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