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A prospective manikin-based observational study of telephone-directed cardiopulmonary resuscitation

A prospective manikin-based observational study of telephone-directed cardiopulmonary resuscitation
A prospective manikin-based observational study of telephone-directed cardiopulmonary resuscitation
Introduction

Bystander cardiopulmonary resuscitation (CPR) significantly improves the outcome from sudden cardiac arrest (SCA) and is therefore encouraged by offering telephone instructions to the bystander. The effectiveness of this technique was examined in a manikin-based study.

Methods

Subjects performed CPR on an instrumented adult manikin by following Advanced Medical Priority Dispatch System v11.1 (AMPDS) instructions given by telephone from a different room.

Results

Fifty-one volunteers (26 males, median age 56, range 27–76 years) with no previous experience of CPR were recruited. No volunteers followed the entire instructions correctly. Forty percent were unable to open the airway, only 18% achieved a median inspiration time of 2 s or greater and only 30% delivered tidal volumes within the range 700–1000 ml. Chest compressions were performed at a median rate of 52 min?1 with only 4% of subjects achieving a rate of 100 min?1. Depth of compression was also inadequate in 88% of subjects and hand positioning was incorrect in a third of subjects. The median duty cycle was 46% and there were significant delays between the commencement of the AMPDS protocol and the delivery of the first breath (123 s) and first chest compression (163 s).

Discussion

Few bystanders perform CPR satisfactorily and further work is necessary to improve the effectiveness of telephone CPR instructions.
bystander CPR, cardiopulmonary resuscitation (CPR), telephone, advanced medical priority dispatch (AMPDS)
0300-9572
425-435
Cheung, Spencer
9aad94f3-3c88-4bb8-8d21-d5a959594d2d
Deakin, Charles D.
f308bd7c-4c95-4b55-8983-8237cde25967
Hsu, Ruby
498336c8-6d16-4ad1-86e7-60e24c5a1283
Petley, Graham W.
4f2da40b-3c7b-4adc-b75c-e24e62bb1cf0
Clewlow, Frank
94c8568b-d5ea-4446-a712-4fa1560895c2
Cheung, Spencer
9aad94f3-3c88-4bb8-8d21-d5a959594d2d
Deakin, Charles D.
f308bd7c-4c95-4b55-8983-8237cde25967
Hsu, Ruby
498336c8-6d16-4ad1-86e7-60e24c5a1283
Petley, Graham W.
4f2da40b-3c7b-4adc-b75c-e24e62bb1cf0
Clewlow, Frank
94c8568b-d5ea-4446-a712-4fa1560895c2

Cheung, Spencer, Deakin, Charles D., Hsu, Ruby, Petley, Graham W. and Clewlow, Frank (2007) A prospective manikin-based observational study of telephone-directed cardiopulmonary resuscitation. Resuscitation, 72 (3), 425-435. (PMID:17224230)

Record type: Article

Abstract

Introduction

Bystander cardiopulmonary resuscitation (CPR) significantly improves the outcome from sudden cardiac arrest (SCA) and is therefore encouraged by offering telephone instructions to the bystander. The effectiveness of this technique was examined in a manikin-based study.

Methods

Subjects performed CPR on an instrumented adult manikin by following Advanced Medical Priority Dispatch System v11.1 (AMPDS) instructions given by telephone from a different room.

Results

Fifty-one volunteers (26 males, median age 56, range 27–76 years) with no previous experience of CPR were recruited. No volunteers followed the entire instructions correctly. Forty percent were unable to open the airway, only 18% achieved a median inspiration time of 2 s or greater and only 30% delivered tidal volumes within the range 700–1000 ml. Chest compressions were performed at a median rate of 52 min?1 with only 4% of subjects achieving a rate of 100 min?1. Depth of compression was also inadequate in 88% of subjects and hand positioning was incorrect in a third of subjects. The median duty cycle was 46% and there were significant delays between the commencement of the AMPDS protocol and the delivery of the first breath (123 s) and first chest compression (163 s).

Discussion

Few bystanders perform CPR satisfactorily and further work is necessary to improve the effectiveness of telephone CPR instructions.

Full text not available from this repository.

More information

Published date: March 2007
Keywords: bystander CPR, cardiopulmonary resuscitation (CPR), telephone, advanced medical priority dispatch (AMPDS)
Organisations: Faculty of Medicine

Identifiers

Local EPrints ID: 383369
URI: https://eprints.soton.ac.uk/id/eprint/383369
ISSN: 0300-9572
PURE UUID: 6cf2be44-55cd-48a6-b5d9-1b94426490ad
ORCID for Graham W. Petley: ORCID iD orcid.org/0000-0002-3295-0444

Catalogue record

Date deposited: 18 Jan 2016 12:43
Last modified: 15 Aug 2019 00:52

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Contributors

Author: Spencer Cheung
Author: Charles D. Deakin
Author: Ruby Hsu
Author: Frank Clewlow

University divisions

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