Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets

<b>Background:</b> The Neonatal Life Support Consensus on Science With Treatment Recommendations states that chest compressions (CC) be performed preferably with the 2-thumb encircling technique. The aim of this study was to compare the hemodynamic effects of four different finger positi...

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Main Authors: Marlies Bruckner, Mattias Neset, Megan O’Reilly, Tze-Fun Lee, Po-Yin Cheung, Georg M. Schmölzer
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Children
Subjects:
Online Access:https://www.mdpi.com/2227-9067/10/2/283
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author Marlies Bruckner
Mattias Neset
Megan O’Reilly
Tze-Fun Lee
Po-Yin Cheung
Georg M. Schmölzer
author_facet Marlies Bruckner
Mattias Neset
Megan O’Reilly
Tze-Fun Lee
Po-Yin Cheung
Georg M. Schmölzer
author_sort Marlies Bruckner
collection DOAJ
description <b>Background:</b> The Neonatal Life Support Consensus on Science With Treatment Recommendations states that chest compressions (CC) be performed preferably with the 2-thumb encircling technique. The aim of this study was to compare the hemodynamic effects of four different finger positions during CC in a piglet model of neonatal asphyxia. <b>Methods:</b> Seven asphyxiated post-transitional piglets were randomized to CC with 2-thumb-, 2-finger-, knocking-fingers-, and over-the-head 2-thumb-techniques for one minute at each technique. CC superimposed with sustained inflations were performed manually. <b>Results:</b> Seven newborn piglets (age 0–4 days, weight 2.0–2.1 kg) were included in the study. The mean (SD) slope rise of carotid blood flow was significantly higher with the 2-thumb-technique and over-the-head 2-thumb-technique (118 (45) mL/min/s and 121 (46) mL/min/s, respectively) compared to the 2-finger-technique and knocking-finger-technique (75 (48) mL/min/s and 71 (67) mL/min/s, respectively) (<i>p</i> < 0.001). The mean (SD) dp/dt<sub>min</sub> (as an expression of left ventricular function) was significantly lower with the 2-thumb-technique, with −1052 (369) mmHg/s, compared to −568 (229) mmHg/s and −578(180) mmHg/s (both <i>p</i> = 0.012) with the 2-finger-technique and knocking-finger-technique, respectively. <b>Conclusion:</b> The 2-thumb-technique and the over-the-head 2-thumb-technique resulted in improved slope rises of carotid blood flow and dp/dtmin during chest compression.
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spelling doaj.art-1f7efd71856c4fe5942283d082fad6fa2023-11-16T19:48:35ZengMDPI AGChildren2227-90672023-02-0110228310.3390/children10020283Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal PigletsMarlies Bruckner0Mattias Neset1Megan O’Reilly2Tze-Fun Lee3Po-Yin Cheung4Georg M. Schmölzer5Centre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, CanadaCentre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, CanadaCentre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, CanadaCentre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, CanadaCentre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, CanadaCentre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, Canada<b>Background:</b> The Neonatal Life Support Consensus on Science With Treatment Recommendations states that chest compressions (CC) be performed preferably with the 2-thumb encircling technique. The aim of this study was to compare the hemodynamic effects of four different finger positions during CC in a piglet model of neonatal asphyxia. <b>Methods:</b> Seven asphyxiated post-transitional piglets were randomized to CC with 2-thumb-, 2-finger-, knocking-fingers-, and over-the-head 2-thumb-techniques for one minute at each technique. CC superimposed with sustained inflations were performed manually. <b>Results:</b> Seven newborn piglets (age 0–4 days, weight 2.0–2.1 kg) were included in the study. The mean (SD) slope rise of carotid blood flow was significantly higher with the 2-thumb-technique and over-the-head 2-thumb-technique (118 (45) mL/min/s and 121 (46) mL/min/s, respectively) compared to the 2-finger-technique and knocking-finger-technique (75 (48) mL/min/s and 71 (67) mL/min/s, respectively) (<i>p</i> < 0.001). The mean (SD) dp/dt<sub>min</sub> (as an expression of left ventricular function) was significantly lower with the 2-thumb-technique, with −1052 (369) mmHg/s, compared to −568 (229) mmHg/s and −578(180) mmHg/s (both <i>p</i> = 0.012) with the 2-finger-technique and knocking-finger-technique, respectively. <b>Conclusion:</b> The 2-thumb-technique and the over-the-head 2-thumb-technique resulted in improved slope rises of carotid blood flow and dp/dtmin during chest compression.https://www.mdpi.com/2227-9067/10/2/283infantnewbornneonatal resuscitationchest compressionasphyxia2 thumbs technique
spellingShingle Marlies Bruckner
Mattias Neset
Megan O’Reilly
Tze-Fun Lee
Po-Yin Cheung
Georg M. Schmölzer
Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets
Children
infant
newborn
neonatal resuscitation
chest compression
asphyxia
2 thumbs technique
title Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets
title_full Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets
title_fullStr Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets
title_full_unstemmed Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets
title_short Four Different Finger Positions and Their Effects on Hemodynamic Changes during Chest Compression in Asphyxiated Neonatal Piglets
title_sort four different finger positions and their effects on hemodynamic changes during chest compression in asphyxiated neonatal piglets
topic infant
newborn
neonatal resuscitation
chest compression
asphyxia
2 thumbs technique
url https://www.mdpi.com/2227-9067/10/2/283
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AT meganoreilly fourdifferentfingerpositionsandtheireffectsonhemodynamicchangesduringchestcompressioninasphyxiatedneonatalpiglets
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