In:
PLOS ONE, Public Library of Science (PLoS), Vol. 18, No. 3 ( 2023-3-16), p. e0283039-
Abstract:
General anesthesia is associated with the development of atelectasis, which may affect lung ventilation. Electrical impedance tomography (EIT) is a noninvasive imaging tool that allows monitoring in real time the topographical changes in aeration and ventilation. Objective To evaluate the pattern of distribution of pulmonary ventilation through EIT before and after anesthesia induction in pediatric patients without lung disease undergoing nonthoracic surgery. Methods This was a prospective observational study including healthy children younger than 5 years who underwent nonthoracic surgery. Monitoring was performed continuously before and throughout the surgical period. Data analysis was divided into 5 periods: induction (spontaneous breathing, SB), ventilation-5min, ventilation-30min, ventilation-late and recovery-SB. In addition to demographic data, mechanical ventilation parameters were also collected. Ventilation impedance (Delta Z) and pulmonary ventilation distribution were analyzed cycle by cycle at the 5 periods. Results Twenty patients were included, and redistribution of ventilation from the posterior to the anterior region was observed with the beginning of mechanical ventilation: on average, the percentage ventilation distribution in the dorsal region decreased from 54%(IC95%:49–60%) to 49%(IC95%:44–54%). With the restoration of spontaneous breathing, ventilation in the posterior region was restored. Conclusion There were significant pulmonary changes observed during anesthesia and controlled mechanical ventilation in children younger than 5 years, mirroring the findings previously described adults. Monitoring these changes may contribute to guiding the individualized settings of the mechanical ventilator with the goal to prevent postoperative complications.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0283039
DOI:
10.1371/journal.pone.0283039.g001
DOI:
10.1371/journal.pone.0283039.g002
DOI:
10.1371/journal.pone.0283039.g003
DOI:
10.1371/journal.pone.0283039.g004
DOI:
10.1371/journal.pone.0283039.t001
DOI:
10.1371/journal.pone.0283039.t002
DOI:
10.1371/journal.pone.0283039.s001
DOI:
10.1371/journal.pone.0283039.s002
DOI:
10.1371/journal.pone.0283039.s003
DOI:
10.1371/journal.pone.0283039.s004
DOI:
10.1371/journal.pone.0283039.s005
DOI:
10.1371/journal.pone.0283039.r001
DOI:
10.1371/journal.pone.0283039.r002
DOI:
10.1371/journal.pone.0283039.r003
DOI:
10.1371/journal.pone.0283039.r004
DOI:
10.1371/journal.pone.0283039.r005
DOI:
10.1371/journal.pone.0283039.r006
DOI:
10.1371/journal.pone.0283039.r007
DOI:
10.1371/journal.pone.0283039.r008
DOI:
10.1371/journal.pone.0283039.r009
DOI:
10.1371/journal.pone.0283039.r010
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2023
detail.hit.zdb_id:
2267670-3
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