The aim of this study is to examine the usability of Analgesia Nociception Index in patients who will be treated in intensive care unit ( a- Cardiovascular b- surgical c- internal diseases), mechanically ventilated and lacking communication. The investigators will examine whether the positive inotropic/vasoconstrictor agents will have any effect on Analgesia Nociception Index.
The aim of this study is to examine the usability of ANI in patients who will be treated in intensive care unit.