Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study

Zhengping Li,* Xiaozhong Yuan,* Wei Deng Department of Anesthesiology and Pain Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Wei Deng Email dengwei1992868@163.comBackground: Positiv...

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Autores principales:	Li Z, Yuan X, Deng W
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2021
Materias:	left paratracheal esophagus anesthesia ultrasonography gastric antrum Therapeutics. Pharmacology RM1-950
Acceso en línea:	https://doaj.org/article/89368b39dfc04102aea0a3fb5fdaad58
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spelling	oai:doaj.org-article:89368b39dfc04102aea0a3fb5fdaad582021-12-02T12:45:19ZReal-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study1178-203Xhttps://doaj.org/article/89368b39dfc04102aea0a3fb5fdaad582021-01-01T00:00:00Zhttps://www.dovepress.com/real-time-ultrasound-detection-of-left-paratracheal-esophagus-on-air-e-peer-reviewed-article-TCRMhttps://doaj.org/toc/1178-203XZhengping Li,* Xiaozhong Yuan,* Wei Deng Department of Anesthesiology and Pain Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Wei Deng Email dengwei1992868@163.comBackground: Positive-pressure ventilation (PPV) delivered via a facemask during anesthesia induction can result in gastric content being inhaled into the lungs. We hypothesized that the real-time ultrasound left paratracheal esophagus monitoring could more effectively reduce air entry into the stomach than real-time ultrasound monitoring of the gastric antrum (GA).Methods: Patients were divided into two groups: study (S; n=30) and control (C; n=30) groups. During the induction of general anesthesia, mask ventilation adopts a pressure control mode. The initial ventilation pressure of both groups was 15 cmH2O. Before anesthesia induction, an ultrasonic probe was used to monitor the cross-sectional area (CSA) of the GA and the presence of gas in the stomach. During and after anesthesia induction, group S used a high-frequency ultrasound probe to observe the entry of air from the left paratracheal esophagus into the GA. The ventilation pressure was gradually reduced over time until no esophageal air was found. In group C, the ventilatory pressure was set maintained at 15 cmH2O and the CSA of the GA and air intake were monitored using an ultrasonic probe.Results: Before and after PPV, the CSA of the GA in group S decreased (P< 0.001), whereas the CSA in group C increased (P=0.002). The GA CSA in group C after PPV was larger than in group S after PPV (P=0.002). The proportion of patients who experienced intragastric air intake in group S (23.3%) was significantly lower than that in group C (66.7) (P=0.001).Conclusion: Compared with ultrasound monitoring of the GA, real-time ultrasound detection of LPEOAE into the GA during anesthesia induction was more effective, more sensitive, significantly reduced the prevalence of intragastric air intake, and provided sufficient tidal volume and oxygen for patients.Keywords: left paratracheal esophagus, anesthesia, ultrasonography, gastric antrumLi ZYuan XDeng WDove Medical Pressarticleleft paratracheal esophagusanesthesiaultrasonographygastric antrumTherapeutics. PharmacologyRM1-950ENTherapeutics and Clinical Risk Management, Vol Volume 17, Pp 103-109 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	left paratracheal esophagus anesthesia ultrasonography gastric antrum Therapeutics. Pharmacology RM1-950
spellingShingle	left paratracheal esophagus anesthesia ultrasonography gastric antrum Therapeutics. Pharmacology RM1-950 Li Z Yuan X Deng W Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study
description	Zhengping Li,* Xiaozhong Yuan,* Wei Deng Department of Anesthesiology and Pain Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Wei Deng Email dengwei1992868@163.comBackground: Positive-pressure ventilation (PPV) delivered via a facemask during anesthesia induction can result in gastric content being inhaled into the lungs. We hypothesized that the real-time ultrasound left paratracheal esophagus monitoring could more effectively reduce air entry into the stomach than real-time ultrasound monitoring of the gastric antrum (GA).Methods: Patients were divided into two groups: study (S; n=30) and control (C; n=30) groups. During the induction of general anesthesia, mask ventilation adopts a pressure control mode. The initial ventilation pressure of both groups was 15 cmH2O. Before anesthesia induction, an ultrasonic probe was used to monitor the cross-sectional area (CSA) of the GA and the presence of gas in the stomach. During and after anesthesia induction, group S used a high-frequency ultrasound probe to observe the entry of air from the left paratracheal esophagus into the GA. The ventilation pressure was gradually reduced over time until no esophageal air was found. In group C, the ventilatory pressure was set maintained at 15 cmH2O and the CSA of the GA and air intake were monitored using an ultrasonic probe.Results: Before and after PPV, the CSA of the GA in group S decreased (P< 0.001), whereas the CSA in group C increased (P=0.002). The GA CSA in group C after PPV was larger than in group S after PPV (P=0.002). The proportion of patients who experienced intragastric air intake in group S (23.3%) was significantly lower than that in group C (66.7) (P=0.001).Conclusion: Compared with ultrasound monitoring of the GA, real-time ultrasound detection of LPEOAE into the GA during anesthesia induction was more effective, more sensitive, significantly reduced the prevalence of intragastric air intake, and provided sufficient tidal volume and oxygen for patients.Keywords: left paratracheal esophagus, anesthesia, ultrasonography, gastric antrum
format	article
author	Li Z Yuan X Deng W
author_facet	Li Z Yuan X Deng W
author_sort	Li Z
title	Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study
title_short	Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study
title_full	Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study
title_fullStr	Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study
title_full_unstemmed	Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study
title_sort	real-time ultrasound detection of left paratracheal esophagus on air entry into the gastric antrum in the induction period of general anesthesia: a prospective, randomized study
publisher	Dove Medical Press
publishDate	2021
url	https://doaj.org/article/89368b39dfc04102aea0a3fb5fdaad58
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Real-Time Ultrasound Detection of Left Paratracheal Esophagus on Air Entry into the Gastric Antrum in the Induction Period of General Anesthesia: A Prospective, Randomized Study

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