Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets

It is unknown if the lung deposition of surfactant administered via a catheter placed through a laryngeal mask airway (LMA) is equivalent to that obtained by bolus instillation through an endotracheal tube. We compare the lung deposition of surfactant delivered via two types of LMA with the standard...

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Autores principales: Anders Nord, Doris Cunha-Goncalves, Rikard Linnér, Federico Bianco, Fabrizio Salomone, Francesca Ricci, Marta Lombardini, Massimo Micaglio, Daniele Trevisanuto, Valeria Perez-de-Sa
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/645dbdabab2e41f190b62eb4c1e0d7ae
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spelling oai:doaj.org-article:645dbdabab2e41f190b62eb4c1e0d7ae2021-11-25T18:41:13ZLung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets10.3390/pharmaceutics131118581999-4923https://doaj.org/article/645dbdabab2e41f190b62eb4c1e0d7ae2021-11-01T00:00:00Zhttps://www.mdpi.com/1999-4923/13/11/1858https://doaj.org/toc/1999-4923It is unknown if the lung deposition of surfactant administered via a catheter placed through a laryngeal mask airway (LMA) is equivalent to that obtained by bolus instillation through an endotracheal tube. We compare the lung deposition of surfactant delivered via two types of LMA with the standard technique of endotracheal instillation. 25 newborn piglets on continuous positive airway pressure support (CPAP) were randomized into three groups: 1—LMA-camera (integrated camera and catheter channel; catheter tip below vocal cords), 2—LMA-standard (no camera, no channel; catheter tip above the glottis), 3—InSurE (Intubation, Surfactant administration, Extubation; catheter tip below end of endotracheal tube). All animals received 100 mg·kg<sup>−1</sup> of poractant alfa mixed with <sup>99m</sup>Technetium-nanocolloid. Surfactant deposition was measured by gamma scintigraphy as a percentage of the administered dose. The median (range) total lung surfactant deposition was 68% (10–85), 41% (5–88), and 88% (67–92) in LMA-camera, LMA-standard, and InSurE, respectively, which was higher (<i>p</i> < 0.05) in the latter. The deposition in the stomach and nasopharynx was higher with the LMA-standard. The surfactant deposition via an LMA was lower than that obtained with InSurE. Although not statistically significant, introducing the catheter below the vocal cords under visual control with an integrated camera improved surfactant LMA delivery by 65%.Anders NordDoris Cunha-GoncalvesRikard LinnérFederico BiancoFabrizio SalomoneFrancesca RicciMarta LombardiniMassimo MicaglioDaniele TrevisanutoValeria Perez-de-SaMDPI AGarticlesurfactantlung depositionlaryngeal mask airwaynewbornscintigraphyPharmacy and materia medicaRS1-441ENPharmaceutics, Vol 13, Iss 1858, p 1858 (2021)
institution DOAJ
collection DOAJ
language EN
topic surfactant
lung deposition
laryngeal mask airway
newborn
scintigraphy
Pharmacy and materia medica
RS1-441
spellingShingle surfactant
lung deposition
laryngeal mask airway
newborn
scintigraphy
Pharmacy and materia medica
RS1-441
Anders Nord
Doris Cunha-Goncalves
Rikard Linnér
Federico Bianco
Fabrizio Salomone
Francesca Ricci
Marta Lombardini
Massimo Micaglio
Daniele Trevisanuto
Valeria Perez-de-Sa
Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets
description It is unknown if the lung deposition of surfactant administered via a catheter placed through a laryngeal mask airway (LMA) is equivalent to that obtained by bolus instillation through an endotracheal tube. We compare the lung deposition of surfactant delivered via two types of LMA with the standard technique of endotracheal instillation. 25 newborn piglets on continuous positive airway pressure support (CPAP) were randomized into three groups: 1—LMA-camera (integrated camera and catheter channel; catheter tip below vocal cords), 2—LMA-standard (no camera, no channel; catheter tip above the glottis), 3—InSurE (Intubation, Surfactant administration, Extubation; catheter tip below end of endotracheal tube). All animals received 100 mg·kg<sup>−1</sup> of poractant alfa mixed with <sup>99m</sup>Technetium-nanocolloid. Surfactant deposition was measured by gamma scintigraphy as a percentage of the administered dose. The median (range) total lung surfactant deposition was 68% (10–85), 41% (5–88), and 88% (67–92) in LMA-camera, LMA-standard, and InSurE, respectively, which was higher (<i>p</i> < 0.05) in the latter. The deposition in the stomach and nasopharynx was higher with the LMA-standard. The surfactant deposition via an LMA was lower than that obtained with InSurE. Although not statistically significant, introducing the catheter below the vocal cords under visual control with an integrated camera improved surfactant LMA delivery by 65%.
format article
author Anders Nord
Doris Cunha-Goncalves
Rikard Linnér
Federico Bianco
Fabrizio Salomone
Francesca Ricci
Marta Lombardini
Massimo Micaglio
Daniele Trevisanuto
Valeria Perez-de-Sa
author_facet Anders Nord
Doris Cunha-Goncalves
Rikard Linnér
Federico Bianco
Fabrizio Salomone
Francesca Ricci
Marta Lombardini
Massimo Micaglio
Daniele Trevisanuto
Valeria Perez-de-Sa
author_sort Anders Nord
title Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets
title_short Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets
title_full Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets
title_fullStr Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets
title_full_unstemmed Lung Deposition of Surfactant Delivered via a Dedicated Laryngeal Mask Airway in Piglets
title_sort lung deposition of surfactant delivered via a dedicated laryngeal mask airway in piglets
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/645dbdabab2e41f190b62eb4c1e0d7ae
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