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External defibrillation in the left lateral position--a comparison of manual paddles with self-adhesive pads.

External defibrillation in the left lateral position--a comparison of manual paddles with self-adhesive pads.
External defibrillation in the left lateral position--a comparison of manual paddles with self-adhesive pads.
Introduction: Firm paddle force during defibrillation lowers transthoracic impedance (TTI) and increases transmyocardial current, increasing the chances of successful cardioversion. Current protocols recommend that if defibrillation using the anterior–apical (AA) paddle position fails, the anterior–posterior (AP) position should be used. This generally requires the patient to be placed in the left lateral position with the operator leaning over the patient. Avoiding physical contact with the patient during defibrillation subjectively makes application of firm paddle force difficult in the AP position. We compared TTI between the AA and AP positions and between manual paddles and self-adhesive pads to establish if the AP position precludes firm paddle force and to compare TTI between paddles and self-adhesive pads. Methods: Twenty-one consecutive patients undergoing elective cardioversion (age 39–82) were studied. TTI was measured between pairs of manually held paddles and self-adhesive pads using AA placement with the patient supine, and AP placement with the patient left lateral position. Results: Mean TTI using the AP electrode position was lower using manual paddles (66.5 ?; 95% CI 60.2–72.9 ?) than that using self-adhesive pads (92.1 ?; 95% CI 81.5–102.7 ?; 95% CI between the mean = 15.8–35.5 ?; P < 0.0001). TTI was significantly less using the manual paddles compared with self-adhesive pads in both AA and AP positions (P < 0.0001). Conclusion: Despite the subjective difficulties of defibrillating patients in the AP position whilst leaning over them, use of manual paddles achieves a lower TTI than that achieved with self-adhesive pads.
0300-9572
283-286
Dodd, Tamsin E.L.
fdaec9a1-d479-4688-8f75-cb7bcadaa5a1
Deakin, Charles D.
560d993b-bbc9-4548-9990-272ed18a011d
Petley, Graham W.
4f2da40b-3c7b-4adc-b75c-e24e62bb1cf0
Clewlow, Frank
94c8568b-d5ea-4446-a712-4fa1560895c2
Dodd, Tamsin E.L.
fdaec9a1-d479-4688-8f75-cb7bcadaa5a1
Deakin, Charles D.
560d993b-bbc9-4548-9990-272ed18a011d
Petley, Graham W.
4f2da40b-3c7b-4adc-b75c-e24e62bb1cf0
Clewlow, Frank
94c8568b-d5ea-4446-a712-4fa1560895c2

Dodd, Tamsin E.L., Deakin, Charles D., Petley, Graham W. and Clewlow, Frank (2004) External defibrillation in the left lateral position--a comparison of manual paddles with self-adhesive pads. Resuscitation, 63 (3), 283-286. (PMID:15582763)

Record type: Article

Abstract

Introduction: Firm paddle force during defibrillation lowers transthoracic impedance (TTI) and increases transmyocardial current, increasing the chances of successful cardioversion. Current protocols recommend that if defibrillation using the anterior–apical (AA) paddle position fails, the anterior–posterior (AP) position should be used. This generally requires the patient to be placed in the left lateral position with the operator leaning over the patient. Avoiding physical contact with the patient during defibrillation subjectively makes application of firm paddle force difficult in the AP position. We compared TTI between the AA and AP positions and between manual paddles and self-adhesive pads to establish if the AP position precludes firm paddle force and to compare TTI between paddles and self-adhesive pads. Methods: Twenty-one consecutive patients undergoing elective cardioversion (age 39–82) were studied. TTI was measured between pairs of manually held paddles and self-adhesive pads using AA placement with the patient supine, and AP placement with the patient left lateral position. Results: Mean TTI using the AP electrode position was lower using manual paddles (66.5 ?; 95% CI 60.2–72.9 ?) than that using self-adhesive pads (92.1 ?; 95% CI 81.5–102.7 ?; 95% CI between the mean = 15.8–35.5 ?; P < 0.0001). TTI was significantly less using the manual paddles compared with self-adhesive pads in both AA and AP positions (P < 0.0001). Conclusion: Despite the subjective difficulties of defibrillating patients in the AP position whilst leaning over them, use of manual paddles achieves a lower TTI than that achieved with self-adhesive pads.

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Published date: December 2004
Organisations: Clinical & Experimental Sciences

Identifiers

Local EPrints ID: 383370
URI: https://eprints.soton.ac.uk/id/eprint/383370
ISSN: 0300-9572
PURE UUID: 36d8f3b2-49a9-45fd-95ef-c5c55f05e43f
ORCID for Graham W. Petley: ORCID iD orcid.org/0000-0002-3295-0444

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Date deposited: 25 Jan 2016 15:05
Last modified: 06 Jun 2018 13:01

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