The main objective of this clinical study is to determine the effectiveness of BIS-guided propofol administration in avoiding hypotension during propofol induction in geriatric patients. The primary question it aims to answer is whether the mean arterial pressure can be maintained above 60mmHg with BIS-guided propofol induction. For this purpose, the observer's alertness sedation score will be compared with bispectral index-guided inductions.
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Use of BIS for preventing hypotension (mean arterial pressure (MAP) <60 mmHg) during propofol induction in geriatric patients
Timeframe: The mean arterial pressure (MAP) will be recorded at 2-minute intervals for a duration of 14 minutes.