Journal of Anesthesia

, Volume 31, Issue 1, pp 5–10 | Cite as

A comparison of single-handed chin lift and two-handed jaw thrust for tracheal intubation using a lightwand

  • Seong-Mi Yang
  • Hyerim Kim
  • Jee-Eun Chang
  • Seong-Won Min
  • Jung-Man Lee
  • Jin-Young HwangEmail author
Original Article



In the present study, we evaluated the effects of single-handed chin lift and two-handed jaw thrust on lightwand-guided intubation and postoperative sore throat.


Sixty adult patients were included in the study. After induction of anesthesia, intubation was performed using a lightwand under single-handed chin lift or two-handed jaw thrust. In the single-handed chin lift group, the lightwand was inserted with the right hand after the mandible was lifted by placing the thumb of the left hand into the mouth. In the two-handed jaw thrust group, the lightwand was inserted while jaw thrust was achieved by an assistant using two hands. Lightwand search time, number of intubation attempts, and time to achieve intubation were assessed. Heart rate and mean arterial pressure were measured before and after intubation. Postoperative sore throat was evaluated at 1 and 24 h after surgery.


Lightwand search time was significantly shorter in the two-handed jaw thrust group compared to the single-handed chin lift group (7.2 ± 4.6 vs. 12.1 ± 9.1 s, respectively; p = 0.016). The two-handed jaw thrust group had shorter intubation time than the single-handed chin lift group (21.0 ± 6.6 vs. 27.9 ± 9.9 s, respectively; p = 0.004). The number of intubation attempts and hemodynamic changes during intubation were similar between the two groups. The incidence and severity of postoperative sore throat were lower at 24 h after surgery in the two-handed jaw thrust group compared with the single-handed chin lift group (p = 0.011).


The two-handed jaw thrust facilitated lightwand-guided intubation, and reduced the incidence and severity of postoperative sore throat compared to the single-handed chin lift.


Lightwand Two-handed jaw thrust Single-handed chin lift Sore throat 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.


This study was not funded.


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Copyright information

© Japanese Society of Anesthesiologists 2016

Authors and Affiliations

  • Seong-Mi Yang
    • 1
  • Hyerim Kim
    • 2
  • Jee-Eun Chang
    • 2
  • Seong-Won Min
    • 2
  • Jung-Man Lee
    • 2
  • Jin-Young Hwang
    • 2
    Email author
  1. 1.Department of Anesthesiology and Pain MedicineSeoul National University HospitalSeoulRepublic of Korea
  2. 2.Department of Anesthesiology and Pain MedicineSMG-SNU Boramae Medical CenterSeoulRepublic of Korea

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