Turkish Journal of Anaesthesiology & Reanimation

Effects of Ketamine-Propofol Mixture on Intraocular Pressure and Haemodynamics in Elderly Patients: A Randomised Double-Blind Trial


Department of Anaesthesiology and Reanimation, Faculty of Medicine, İnönü University, Malatya, Turkey


Department of Ophthalmology, Faculty of Medicine, İnönü University, Malatya, Turkey


Department of Biostatistics, Faculty of Medicine, İnönü University, Malatya, Turkey

Turk J Anaesthesiol Reanim 2014; 42: 12-18
DOI: 10.5152/TJAR.2013.56
Read: 366 Downloads: 137 Published: 01 October 2019

Objective: The aim of this study was to compare the effects of a ketamine-propofol mixture (ketofol) and propofol on intraocular pressure (IOP) and haemodynamics in elderly patients during anaesthetic management at each repeated measurement times.

Methods: Forty elderly ASA I and II patients were divided into two random groups and received either propofol (1.5 mg kg-1; group P, n=20) or ketofol (1:1 single syringe mixture of 5 mg mL-1 ketamine and 5 mg mL-1 propofol; group KP, n=20). A proseal laryngeal mask airway (PLMA) was inserted 60 seconds after induction of anaesthesia. IOP, systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) values were recorded at preinduction (t0), immediately following induction (t1), and at 1 (t2), 3 (t3), and 5 (t4) minutes after induction. Hemodynamic complications and the need for ephedrine were also recorded.

Results: Patient characteristics at the beginning of the procedure were similar between the groups. SBP and HR were significantly increased in group KP compared to group P at t1 and t4 (p=0.044). Induction of both anaesthetic agents significantly decreased the IOP values from the t0 (p=0.026). A significant decrease in IOP was found at t1 and t4 in group P compared to group KP (p=0.018). The total dose of ephedrine was statistically different in group P (p=0.034).

Conclusion: Ketofol can be an alternative agent to provide haemodynamic stability with a moderate decrease in IOP during anaesthesia induction in elderly patients.

EISSN 2667-6370