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Effect of pre and intraoperative stress on pain perception during cataract surgery comparing first eye with second eye surgery

Poster Details

First Author: J.Falasinnu AUSTRIA

Co Author(s):    M. Bijak   F. Starzengruber   K. Kefer   N. Hirnschall   O. Findl        

Abstract Details


Purpose of the study was to assess if lower stress related physiological parameters during second eye cataract surgery contributed to an increased pain perception compared to the surgery of the first eye.


Vienna Insitiute for Research in Ocular Surgery (VIROS), a Karl-Landsteiner institute, Hanusch Hospital, Vienna, Austria


Numerous stress related physiological parameters were measured minutes before and during cataract surgery of the first and second eye: heart rate and its�â�€�™ variability, electric skin conductance and electrical activity of the neck muscles. Additionally blood samples were drawn to measure parameters which depend on the distribution of cortisol, epinephrine and norepinephrine. Immediately after surgery each patient graded the pain experienced using a visual analogue scale.


In total 39 patients were recruited. Preliminary results of the plasma metanephrines and cortisol levels in the first 50% of the patients included (1st surgery) were: Metanephrine 48,4 pg/ml (SD: 20,3), normetanephrine 139,0 pg/ml (SD 63,7), cortisol 10,8 �Â�µg/dl (SD: 4,3). All functional results are going to be presented.


A lower amount of stress may be the reason for reports of more discomfort during second eye surgery. The results will be discussed

Financial Disclosure:


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