Endotracheal Intubation Using Three Laryngoscopes in Maternal Cardiac Arrest: a Manikin Simulation Study

Comparison of Glidescope, Pentax-AWS and Macintosh Laryngoscope for Intubation During Chest Compression in 15-30 Degree Left-Lateral Tilt: A Manikin Simulation Study of Maternal Cardiopulmonary Resuscitation

European Resuscitation Council (ERC) Guidelines for Resuscitation 2010 emphasize high quality chest compressions .They propose minor changes for pregnant women: manual left deviation of the uterus or a left-lateral incline of 15-30to alleviate pressure on the inferior vena cava. We will examine the performance of the Glidescope (GVL), the Pentax-AWS Airwayscope(AWS) and Macintosh laryngoscope (McL) for airway management during chest compressions on 15 and 30 degree left-lateral tilt (15 &30 LLT) custom-made hard wedges.

Study Overview

• Status: Completed
• Conditions: Cardiac Arrest
• Intervention / Treatment: Device: 15 degree left-lateral tilt wedges; Device: 30 degree left-lateral tilt wedges

Detailed Description

Materials

1. Sim Mom manikin (Laerdal, Stavanger, Norway)
2. Stryker ST104-747(Transport stretcher®, 760 x 2110 mm, 228 kg, Stryker Co., Kalamazoo, Michigan, US)
3. LUCAS Chest Compression System( LUCAS Chest Compression System, Physio-Control/Jolife AB)
4. Backboard(450 ×600 ×10 mm, 3 kg Lifeline Plastic, Sung Shim Medical Co., Bucheon, Korea)

• Study Type: Interventional
• Enrollment (Actual): 19
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Korea, Republic of
  • Seoul, Korea, Republic of, 133792
    • Hanyang University Seoul Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 60 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Experience of intubation > 50 times
• Postgraduates year 1,2,3,4 and Emergency physicians in emergency department

Exclusion Criteria:

• Wrist or Low back disease

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Direct laryngoscope; Macintosh laryngoscope	Device: 15 degree left-lateral tilt wedges; The wedges are made of aluminium; Other Names: Custom-made hard wedges; Device: 30 degree left-lateral tilt wedges; The wedges are made of aluminium; Other Names: Custom-made hard wedges
Experimental: Videolaryngoscope-1; Glidescope	Device: 15 degree left-lateral tilt wedges; The wedges are made of aluminium; Other Names: Custom-made hard wedges; Device: 30 degree left-lateral tilt wedges; The wedges are made of aluminium; Other Names: Custom-made hard wedges
Experimental: Videolaryngoscope-2; Airwayscope	Device: 15 degree left-lateral tilt wedges; The wedges are made of aluminium; Other Names: Custom-made hard wedges; Device: 30 degree left-lateral tilt wedges; The wedges are made of aluminium; Other Names: Custom-made hard wedges

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time to intubation	We will check the times from inserting blade to mouth to exposing vocal cord and from exposing vocal cord to first ambu-bagging.	1day
Success rate of intubation	Definition of failed intubation; Time to intubation is longer than 90 seconds.; Wrong placement of endotracheal tube (For example : Esophageal intubation etc.)	1day

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Laryngeal View during intubation	We will record the best laryngeal View during intubation. We will record according to the Cormack-Lehane Grade system.	1day
The preference for laryngoscopes	The preference for laryngoscope regardless of tilting degree of wedges; The preference for laryngoscope in 15 degree left-lateral tilt situation .; The preference for laryngoscope in 30 degree left-lateral tilt situation . (Participants will select only 1 of 3 laryngoscopes and the preference will be displayed as histogram)	1day

Collaborators and Investigators

• Sponsor: Hanyang University Seoul Hospital
• Investigators: Principal Investigator: Sang hyun Lee, M.D, Hanyang University Seoul Hospital

Study record dates

Study Major Dates

• Study Start: March 1, 2014
• Primary Completion (Actual): March 1, 2014
• Study Completion (Actual): March 1, 2014

Study Registration Dates

• First Submitted: February 25, 2014
• First Submitted That Met QC Criteria: February 27, 2014
• First Posted (Estimate): February 28, 2014

Study Record Updates

• Last Update Posted (Estimate): March 21, 2014
• Last Update Submitted That Met QC Criteria: March 20, 2014
• Last Verified: March 1, 2014

More Information

Terms related to this study

• Keywords: Manikin Study; Endotracheal intubation; Left lateral tilt wedge; Maternal Cardiopulmonary Resuscitation
• Additional Relevant MeSH Terms: Heart Diseases; Cardiovascular Diseases; Heart Arrest
• Other Study ID Numbers: HYI-14-004-1