The effects of Minimal Flow Anesthesia (0.4 l / min) and High Flow Anaesthesia (2 l / min) on tissue oxygen saturation (St02) and thiol / disulfide balance in hypotensive anesthesia operations will be investigated.
The oxidative stress at the cellular level and the possible effects of general anesthesia techniques on the antioxidant system make the method of anesthesia more important. The effects of Minimal Flow Anesthesia (0.4 l / min) and High Flow Anaesthesia (2 l / min) on tissue oxygen saturation (St02) and thiol / disulfide balance in hypotensive anesthesia operations will be investigated. Minimal flow anesthesia is widely used because of its advantages such as cost reduction, prevention of environmental pollution, minimization of heat and humidity loss. Hypotensive anesthesia is preferred in some specialized surgical procedures in order to reduce bleeding and improve the surgical field of view. The use of hypotensive anesthesia and inhalation agents may cause hypoperfusion at the tissue level and cause hypoxia-induced oxidative stress and initiate cell damage. Determining the ideal anesthesia technique in terms of oxidative stress and tissue perfusion will reduce intra- and postoperative risks by protecting patients from the harmful effects of anesthesia.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
70
Minimal Flow Anesthesia with 0,4 L min-1
High Flow Anesthesia with 2 L min-1
Recep Tayyip Erdoğan University Training and Research Hospital
Rize, Turkey (Türkiye)
RECRUITINGThiol Disulfide Balance
Change of Oxidative Stress Marker
Time frame: For two groups; First blood sample will be taken 30 min before the start of surgery, second blood sample will be taken at the 60th min of the surgery
StO2
Change of Peripheral Tissue Oxygen Saturation
Time frame: For two groups; simultaneously, 30 min before the start of surgery, 60th min of the surgery
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