The Effect of Sevoflurane versus Isoflurane on Cerebral Oxygenation during Arthroscopic Shoulder Surgery Using Cerebral Oximetry
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- Category: Vol. 85, December 2017
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The Effect of Sevoflurane versus Isoflurane on Cerebral Oxygenation during Arthroscopic Shoulder Surgery Using Cerebral Oximetry, MOSTAFA ABD EL-RAZEQ, AMANY AYAD, MOHAMED HUSEIN, HANY WAFEEQ and BASSIL HASSAN
Abstract
Background: Cerebral desaturation is not uncommon during shoulder surgery in the Beach Chair Position (BCP). In this study we tried to detect whether inhaIational Sevolfшane or Isofurane is preferred to improve the cerebral oxygenation during general anaesthesia, monitored by cerebral oximeter, which may help to diminish cerebral hypoxia.
Patients and Methods: 100 adult patients (age 18-65 year of either sexes), were scheduled for elective arthroscopic shoulder surgery placed in the beach-chair position requiring general anaesthesia for more 60min, after approval from the institutional ethical committee and written informed consent. For maintenance of anaesthesia, patients were randomly allocated into two equal groups by simple randomization methods, sevoflurane group (50 patients received one MAC sevoflurane (2%)) and Isoflurane Group (50 patients received one MAC isoflurane (1.2%)). Cerebral oxygenaton monitoring was carried out by Foresight cerebral oximeter immediately after beach chair position and every 5 minutes till the end of surgery.
Results: Regarding the mean value of right and left regional cerebral oxygenations in sevofluraue group the highest was at ТО then declined, while in isoflurane group the lowest was at ТО then increased.
Conclusion: In shoulder arthroscopy in beach chair position, we found that one MAC of isoflurane is superior to one MAC sevoflurane as regard to brain tissue oxygenation when hemodynamic was within rang 20% changes from the preoperative measures.