IRCT2015040120592N3 IRCT 2015-04-20 Shahid Beheshti University of Medical Sciences The effect of surgery type on bleeding in hospitalized patients in intensivel care unit Comparison of Success and Complications in Mini-surgical and Standard Methods in ICU patients at Masih Daneshvari Hospital 2012-03-20 anticipated 320 Complete https://irct.ir/trial/18238 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. 3 Mechanical Ventilator. Intervention 1: Intervention group (Mini-surgical method): All anticoagulants stopped at least 12 hours before the procedure or after indicated correction of coagulopathy. Patient lied supinely on the bed. following prepping and draping the cricoid is palpated and a 2-cm vertical skin incision made 1 cm below the cricoid cartilage.Attending physician stood at the head of the bed and the assistant fellow stood at the right side of patient. Our modified PDT technique, msPDT, utilized a Tracoe® experc dilatation set. Intervention 2: control group: All STs were performed in the operative suite using standard techniques described elsewhere.