Controlled hypotension is a preferred method for reducing surgical bleeding during septoplasty operations however, the level of hypotension and bradycardia should not disrupt cerebral oxygenation. On this account, the investigators aim to investigate the effects of different volatile anesthetics combined with a short-acting opioid on cerebral oxygenation during controlled hypotension using near infrared spectroscopy.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
DOUBLE
Enrollment
95
Sevoflurane %2-3 for general anesthesia maintenance
Desflurane %6-8 for general anesthesia maintenance
Ufuk University Hospital
Ankara, Turkey (Türkiye)
Cerebral oxygen saturation as measured by Near Infrared Spectroscopy
The effect of sevoflurane and desflurane on NIRS values
Time frame: Duration of surgery
Total remifentanil consumption as measured in micrograms
Time frame: Duration of surgery
The effect of anesthetics on hemodynamic variables
The effects of sevoflurane and desflurane on mean arterial pressure
Time frame: Duration of surgery
The effect of anesthetics on hemodynamic variables
The effects of sevoflurane and desflurane on heart rate
Time frame: Duration of surgery
The effect of anesthetics on hemodynamic variables
The effects of sevoflurane and desflurane on bispectral index
Time frame: Duration of surgery
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