Abstract Background. Endoscopic deployment of endotracheal tube (ETT) is the most common in percutaneous dilational tracheostomy (PDT). The main disadvantage of this technique is increased resistance of ETT after fiber bronchoscope (FBS) insertion. The method of endotracheal tube deployment without the use of FBS was developed to eliminate this disadvantage. Aim — to assess clinical effectiveness and safety of ETT deployment method for PDT without the use of FBS. Material and methods. Patients undergoing PDT were divided into 2 groups. Original technique of ETT deployment was applied in the main group (group 1). FBS-assisted PDT was performed in the control group (group 2). ETT deployment depth before and after positioning, positioning time, etCO2 before and after positioning were measured. Results. There were 40 patients. In group 1 (n=20), ETT deployment depth was 24 (22; 24) cm before positioning onset and 17.5 (17; 18) cm at the end of procedure. Positioning time was 38 (37; 45) s. In group 2, ETT deployment depth was 24 (23; 24) cm before positioning onset and did not significantly differ from that in the main group (U=180; Z=–0.584; p=0.559). The depth after positioning was 17.5 (17; 19) cm and did not differ from the main group (U = 170; Z = –0.859; p=0.39). Positioning time in the control group was 46 (39; 148) s and significantly larger by 103 s (U = 112, Z = –2.392; p=0.017) in the third quartile than in the main group. etCO2 values were similar in both groups prior to positioning onset (U = 172; Z = –0.765; p=0.444). At the end of procedure etCO2 was significantly higher by 3 mm Hg in group 2 (U = 76; Z = –3.38; p=0.001). Conclusion. The developed ETT positioning technique is effective and safe and may be recommended for routine application during PDT.