Kneeling Posture With a Kneeling Stool During Cardiopulmonary Resuscitation in Hospital

March 17, 2014 updated by: Jaehoon Oh, Hanyang University
To perform chest compression (CC) in the kneeling posture in hospital, we designed a stage with stairs, named the 'kneeling stool', on which a CC performer kneels beside a patient on a bed.This work is the validation study to demonstrate that the kneeling stool could be used for high quality hospital cardiopulmonary resuscitation (CPR) with the kneeling posture. We hypothesized that the quality of chest compression with a kneeling posture using the kneeling stool is equal to or superior to CC with a standing posture using the height adjustment mechanism of the bed.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

We designed and implemented the kneeling stool to perform CPR with the kneeling posture for a patient on a bed. The frame is constructed of an aluminum alloy. The size is 570 mm (width) x 598 mm (depth) x 600 mm (height). The weight is 9.3 kg, which is easily moved as needed. For easy rotation between rescuers, a step plate was inserted. To prevent pain to the knees of the kneeling CC performer, a 40mmthick sponge cushion was placed on the top plate and fixed to the frame.

A standard hospital bed frame (Transport stretcher®, 760 x2110 mm, 228 kg, Stryker Co., Kalamazoo, Michigan, USA), a foam mattress (660 x 920 x 80 mm, soft foam with polyurethane coverage, Stryker Co., USA), a backboard (450 ×600 ×10 mm, 3 kg Lifeline Plastic, Sung Shim Medical Co., Bucheon, Korea), and a step stool (395 x 450 x 410 mm, Gunica Co., Gyeongsangnam-do, Korea) were used in the experiment. A Resusci Annie Modular System Skill Reporter® manikin (Laerdal Medical, Orpington, UK) was used to perform CPR in the evaluations. We added weight to the manikin to equal 34 kg for simulating the upper body weight of an adult human as in a previous study.

Data collection The participants were divided into two groups by random drawing. Each performer in the first group knelt on the kneeling stool beside the manikin on a bed and compressed the chest of the manikin (CCs with a kneeling posture, PK).Each performer in the second group stood on a step stool beside the manikin on a bed and compressed the chest of the manikin (CCs with a standing posture, PS). When the performer stood beside the manikin on a bed, the height of the manikin's back was adjusted in height to the knee level of the provider using the step stool and the bed height adjustment mechanism. All the participants performed continuous CCs for 5 minutes without audio-visual feedback. After 2 weeks, the posture used for the CCs by each group was changed. Each participant recorded his/her fatigue and pain levels on a visual analogue scale (VAS, score 0 indicates "no pain and fatigue" and score 10 indicates "unbearable pain and fatigue") for each minute during 5 minutes of CCs. After conclusion of the experiment, the participants selected a preferred CC posture in terms of the safety and the quality of the CCs.

Study Type

Interventional

Enrollment (Actual)

38

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 56 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Doctors and nurses working at emergency department
  • American Heart Association Basic Life Support (AHA BLS) provider certification

Exclusion Criteria:

  • Heart, wrist, or low back disease or who were pregnant were excluded

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1

Participants compress the chest of a manikin with kneeling posture using a kneeling stool for chest compression posture during 5 minutes

2 weeks later, They perform the chest compression with standing posture using a step stool during 5 minutes
Device: Chest compression with a step stool
Participants compress the chest of a manikin with a standing posture using a step stool during 5 minutes
Device: Chest compression with a kneeling stool
Participants compress the chest of a manikin with kneeling posture using a kneeling stool during 5 minutes
Experimental: Group 2

Participants compress the chest of a manikin with a standing posture using a step stool for chest compression posture during 5 minutes

2 weeks later, They perform the chest compression with a kneeling posture using a kneeling stool stool and bed height adjustment during 5 minutes
Device: Chest compression with a step stool
Participants compress the chest of a manikin with a standing posture using a step stool during 5 minutes
Device: Chest compression with a kneeling stool
Participants compress the chest of a manikin with kneeling posture using a kneeling stool during 5 minutes

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Chest compression parameter
Time Frame: one day
Chest compression depth and rate Accuracy of chest compression depth at least 5cm Incomplete chest recoil
one day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Visual analog scale(VAS) score of the overall fatigue and pain during chest compression
Time Frame: one day
the VAS score ( 0, no fatigue pain to 10, unbearable) for the fatigue and pain during and after chest compression.
one day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Hanyang University

Investigators

  • Principal Investigator: Jaehoon Oh, M.D., Department of emergency medicine, college of medicine, Hanyang university

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2013

Primary Completion (Actual)

August 1, 2013

Study Completion (Actual)

August 1, 2013

Study Registration Dates

First Submitted

January 21, 2014

First Submitted That Met QC Criteria

January 21, 2014

First Posted (Estimate)

January 23, 2014

Study Record Updates

Last Update Posted (Estimate)

March 18, 2014

Last Update Submitted That Met QC Criteria

March 17, 2014

Last Verified

March 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Kneeling Posture
  • University of Ulsan 2013-0141 (Other Grant/Funding Number: University of Ulsan 2013-0141)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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