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Inter-hemispheric cerebral oxygen saturation differences during thoracic surgery in lateral head positioning
Montreal, Canada
* E-mail: thomashemmerling@hotmail.com
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Editor—Near-infrared spectroscopy provides a non-invasive assessment of regional cerebral saturation. Both left and right hemispheres are equally perfused in normal conditions and no significant differences were observed in cardiac surgery where patients are operated in supine position.1 Patients undergoing thoracic surgery are operated in the lateral position, and therefore, hemispheres can be categorized into an upper and a lower hemisphere. This study was performed to detect differences in