IRCT20201011048991N1 IRCT 2020-12-19 Rajaei Heart Center "The effect of local anesthesia of carina in suction on hemodynamic and physiological parameters" The Effect of Carina Anesthesia with Topical Lidocaine in Endotracheal Suction on Hemodynamic parameters and bucking in Adult Patient After Cardiac Surgery 2020-11-10 anticipated 64 Complete https://irct.ir/trial/51590 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Randomization description: In this study, random allocation is done in block form. Groups are divided into 8 groups of 8. The target group is named with the letter A and the control group with the letter B. Randomization was performed individually with statistical software. In each block, 4 positions are assigned to A and 4 positions to B. Each of these letters was assigned to a project participant in the order recorded in the block table. Depending on whether it was A or B, lidocaine or normal saline was used during suctioning and the data were recorded, Blinding description: In this study, the study participant (patient) and the data recorder were kept blind. The procedure is that one nurse is aware of which group the patient is in, and the second nurse writes down the data without knowing the patient group. 2-3 tracheal suction. Intervention 1: Intervention group: 4 cc of 2% lidocaine are apply directly into the carina just before suctioning the trachea. Intervention 2: Control group: 4 cc of 0.9% Normal saline are apply directly into the carina just before suctioning the trachea. Yes - There is a plan to make this available What will be shared: Shared through email When: Access period starts 1year after the results are published To whom: Researchers working in academic and scientific institutions Conditions: unlimited Where to obtain: through email abedi.hoda.ha@gmail.com How to obtain: 1 month after sending the email Comments: .