Effect of Tourniquet Use on ICEB and ICEBc in Upper Extremity Surgeries

In our study, we will examine whether the pressure bandage (tourniquet) used to reduce bleeding during surgery in patients with arm fractures has an effect on heart rhythm. Tourniquet use is routinely used in every patient in these surgeries. This procedure reduces blood flow to the area where the surgery will be performed by applying a pressure bandage in order to reduce bleeding. At the end of the surgery, this bandage is removed and the blood flow returns to normal. Blood pressure changes that may occur during this process and the cellular effects of the changing blood flow may cause some changes in heart rhythm. To observe those changes, during the operation, an electrocardiogram (ECG, heart graph) will be taken to determine changes in heart rhythm before and after the tourniquet is applied. An ECG is also performed before the surgery for preoperative anesthesia evaluation. The ECG procedure is a painless procedure that takes about 1 minute, includes placing probes on the chest and does not disrupt the integrity of the skin..The procedure will be performed while patients are under anesthesia. Calculations will be made by the parameters on the ECG. Apart from taking an ECG, no other procedure will be performed on the patients