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The effect of peribulbar block with ropivacaine on bi‐hemispheric cerebral oxygen saturation in aged patients
Author(s) -
Fodale V.,
Di Pietro R.,
Ferreri F.,
Tescione M.,
Russo G.,
Santamaria S.,
Praticò C.
Publication year - 2006
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.2006.04710.x
Subject(s) - medicine , ropivacaine , anesthesia , block (permutation group theory) , oxygenation , mathematics , geometry
Summary We evaluated the effects of peribulbar block for eye surgery on bi‐hemispheric regional cerebral oxygenation (rSO 2 ) of aged patients. In 66 adult patients, peribulbar block was performed using ropivacaine 10 mg.ml −1 with hyaluronidase 100 IU.ml −1 . Cerebral oxygenation was monitored using continuous non‐invasive, near‐infrared spectroscopy. The rSO 2 data on the side where the eye block was performed were evaluated as eye block side values, whereas the data recorded on the other side were taken as control values. Mean rSO 2 values on the side where regional block was performed were not significantly different from control values (p > 0.05). Nevertheless, in several patients, a slight desaturation in the cerebral hemisphere on the block side was detected. Therefore, in aged patients, peribulbar block with ropivacaine does not significantly modify bi‐hemispheric rSO 2 , but rSO 2 monitoring during peribulbar block should be a field of future research in aged patients with brain injury or disease.