IRCT2015072423314N1 IRCT 2015-08-12 Vice chancellor for research, Isfahan University of Medical Sciences The effects of routine versus a minimally invasive endotracheal tube suctioning procedure on suction-related pain, airway clearance, airway trauma and physiological indices in patients hospitalized in intensive care units of Al-Zahra Hospital of Isfahan in 2015. Comparison the effects of routine versus a minimally invasive endotracheal suctioning 2015-08-10 anticipated 60 Complete https://irct.ir/trial/19913 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A Respiratory conditions due to other specified external agents. Intervention 1: In intervention group (minimally invasive endotracheal tube suctioning) the patients were hyper oxygenated only by ventilator for one minute, short suction catheter with effective length was introduced only into the end of the endotracheal tube, a negative pressure (80-120 mmHg) was applied for a maximum duration of 10 seconds while removing the catheter, Manual hyperinflation and installation of normal saline were not applied in this group. Intervention 2: In control group (routin endotracheal tube suctioning) after disconnecting the patients from the ventilator, manual hyper oxygenation and hyperventilation was carried out for one minute, a suction catheter with an effective length was introduced into the endotracheal tube until resistance was met (reached the carina), after that it was retracted a centimeter and a negative pressure (100-200 mmHg) was applied for a maximum duration of 10 seconds while removing the catheter, Normal saline was instilled before the each suctioning.