Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)

Several aspects of postnatal pulmonary adaption in the bovine neonate remain unclear, particularly the dynamics and regional ventilation of the lungs. We used electric impedance tomography (EIT) to measure changes in ventilation in the first 3 weeks of life in 20 non-sedated neonatal calves born wit...

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Autores principales:	Ulrich Bleul, Corina Wey, Carolina Meira, Andreas Waldmann, Martina Mosing
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	neonate cattle lung ventilation tidal impedance change EIT blood gas parameter Veterinary medicine SF600-1100 Zoology QL1-991
Acceso en línea:	https://doaj.org/article/b816bc6cffba4d78beb48ae0f83bd28b
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spelling	oai:doaj.org-article:b816bc6cffba4d78beb48ae0f83bd28b2021-11-25T16:19:22ZAssessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)10.3390/ani111132162076-2615https://doaj.org/article/b816bc6cffba4d78beb48ae0f83bd28b2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-2615/11/11/3216https://doaj.org/toc/2076-2615Several aspects of postnatal pulmonary adaption in the bovine neonate remain unclear, particularly the dynamics and regional ventilation of the lungs. We used electric impedance tomography (EIT) to measure changes in ventilation in the first 3 weeks of life in 20 non-sedated neonatal calves born without difficulty in sternal recumbency. Arterial blood gas variables were determined in the first 24 h after birth. Immediately after birth, dorsal parts of the lungs had 4.53% ± 2.82% nondependent silent spaces (NSS), and ventral parts had 5.23% ± 2.66% dependent silent spaces (DSS). The latter increased in the first hour, presumably because of gravity-driven ventral movement of residual amniotic fluid. The remaining lung regions had good ventilation immediately after birth, and the percentage of lung regions with high ventilation increased significantly during the study period. The centre of ventilation was always dorsal to and on the right of the theoretical centre of ventilation. The right lung was responsible for a significantly larger proportion of ventilation (63.84% ± 12.74%, <i>p</i> < 0.00001) compared with the left lung. In the right lung, the centrodorsal lung area was the most ventilated, whereas, in the left lung, it was the centroventral area. Tidal impedance changes, serving as a surrogate for tidal volume, increased in the first 3 weeks of life (<i>p</i> < 0.00001). This study shows the dynamic changes in lung ventilation in the bovine neonate according to EIT measurements. The findings form a basis for the recognition of structural and functional lung disorders in neonatal calves.Ulrich BleulCorina WeyCarolina MeiraAndreas WaldmannMartina MosingMDPI AGarticleneonatecattlelung ventilationtidal impedance changeEITblood gas parameterVeterinary medicineSF600-1100ZoologyQL1-991ENAnimals, Vol 11, Iss 3216, p 3216 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	neonate cattle lung ventilation tidal impedance change EIT blood gas parameter Veterinary medicine SF600-1100 Zoology QL1-991
spellingShingle	neonate cattle lung ventilation tidal impedance change EIT blood gas parameter Veterinary medicine SF600-1100 Zoology QL1-991 Ulrich Bleul Corina Wey Carolina Meira Andreas Waldmann Martina Mosing Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)
description	Several aspects of postnatal pulmonary adaption in the bovine neonate remain unclear, particularly the dynamics and regional ventilation of the lungs. We used electric impedance tomography (EIT) to measure changes in ventilation in the first 3 weeks of life in 20 non-sedated neonatal calves born without difficulty in sternal recumbency. Arterial blood gas variables were determined in the first 24 h after birth. Immediately after birth, dorsal parts of the lungs had 4.53% ± 2.82% nondependent silent spaces (NSS), and ventral parts had 5.23% ± 2.66% dependent silent spaces (DSS). The latter increased in the first hour, presumably because of gravity-driven ventral movement of residual amniotic fluid. The remaining lung regions had good ventilation immediately after birth, and the percentage of lung regions with high ventilation increased significantly during the study period. The centre of ventilation was always dorsal to and on the right of the theoretical centre of ventilation. The right lung was responsible for a significantly larger proportion of ventilation (63.84% ± 12.74%, <i>p</i> < 0.00001) compared with the left lung. In the right lung, the centrodorsal lung area was the most ventilated, whereas, in the left lung, it was the centroventral area. Tidal impedance changes, serving as a surrogate for tidal volume, increased in the first 3 weeks of life (<i>p</i> < 0.00001). This study shows the dynamic changes in lung ventilation in the bovine neonate according to EIT measurements. The findings form a basis for the recognition of structural and functional lung disorders in neonatal calves.
format	article
author	Ulrich Bleul Corina Wey Carolina Meira Andreas Waldmann Martina Mosing
author_facet	Ulrich Bleul Corina Wey Carolina Meira Andreas Waldmann Martina Mosing
author_sort	Ulrich Bleul
title	Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)
title_short	Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)
title_full	Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)
title_fullStr	Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)
title_full_unstemmed	Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)
title_sort	assessment of postnatal pulmonary adaption in bovine neonates using electric impedance tomography (eit)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b816bc6cffba4d78beb48ae0f83bd28b
work_keys_str_mv	AT ulrichbleul assessmentofpostnatalpulmonaryadaptioninbovineneonatesusingelectricimpedancetomographyeit AT corinawey assessmentofpostnatalpulmonaryadaptioninbovineneonatesusingelectricimpedancetomographyeit AT carolinameira assessmentofpostnatalpulmonaryadaptioninbovineneonatesusingelectricimpedancetomographyeit AT andreaswaldmann assessmentofpostnatalpulmonaryadaptioninbovineneonatesusingelectricimpedancetomographyeit AT martinamosing assessmentofpostnatalpulmonaryadaptioninbovineneonatesusingelectricimpedancetomographyeit
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Assessment of Postnatal Pulmonary Adaption in Bovine Neonates Using Electric Impedance Tomography (EIT)

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