Becker R., Schmidt W., Viehl H., Rupp D.

Zentrum für Augenheilkunde, Friedrichstraße 18, D-35392 Gießen

Objective: We compared intraocular pressure (IOP), vitreous pressure and several anaesthesiological parameters on patients who underwent cataract surgery with a propofol anaesthesia, laryngeal mask and different supplementations especially concerning the effect of S-Ketamin.
Methods: 4 groups with 15 patients; cataract surgery (phacoemulsification); anaesthesia with propofol, laryngeal mask and spontaneous breathing, if possible; supplementation with Propofol (0.6 mg/kg, group 1), S-Ketamin (0.3 mg/kg, group 2), Ketamin (0.6 mg/kg, group 3) or Fentanyl (0.5 µg/kg, group 4); IOP-measurement with Tonopen XL at different points of anaesthesia and assessment of vitreous pressure during operation (score from 0 to 3).
Results: Concerning IOP and vitreous pressure, none of the different supplementations showed a significant difference (analysis of variance, a=0.05). Insertion of the laryngeal mask did not rise intraocular pressure. The amount of patients with spontaneous breathing during operation in group 4 was significantly lower than in groups 1 to 3. Concerning anaesthesiological parameters, there was no significant difference.
Conclusion: S-Ketamin used for supplementation during cataract surgery with a propofol anaesthesia and laryngeal mask had no significant effect on IOP and vitreous pressure. It offers a safe "handling" of patients because of a high spontaneous breathing rate and lower concentration compared to Ketamin.

Copyright © Deutsche Ophthalmologische Gesellschaft, 2001. All rights reserved.

Last updated: 

Webdesign: SPALLEK.COM