Intraoperative gastric tonometric examinations in children and infants with a new probe, combined with measurement of the endtidal PCO2

Ágnes Király, Domokos Boda, Gyula Tálosi, K. Boda

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background: Important progress relating to the early prediction of postoperative complications was recently achieved through the combined use of endtidal PCO2 (PETCO2) and gastric tonometry. The aim of this article was to present results obtained with a new tonometric instrument, proving its feasibility and extending its use to the control of anesthetized infants and children. Methods: The new tonometric probe, which is balloon free, consists basically of silicone rubber tubing. The room air initially inside the tubes of the probe equilibrates with the PCO2 of the body cavity throughout its full length. The PCO2 content of the gastric cavity (PgCO2) and simultaneously P ETCO2 were measured with a microcapnograph. A total of 108 measurements were performed intraoperatively on 25 infants and young children operated on at the Surgical Unit of the Department of Pediatrics. The patients were divided into elective surgery cases 2 years of age, group II; and acute surgery cases, independently of age, group III. To examine the degree of agreement between the measurements, Pearson's correlation coefficients were determined and Bland-Altman analysis was performed. A mixed model repeated measurements anova was used to compare the differences between the groups. Results: P ETCO2 and PgCO2 for groups I and II were nearly identical, and statistically not significantly different (mean difference 0.10 mmHg and 0.85 mmHg, P = 0.96 and 0.45, respectively), whereas the corresponding data for group III differed significantly from those for groups I and II (P = 0.03 and 0.001, respectively). On Bland-Altman analysis, the bias value for groups proved to be statistically significantly different (P = 0.001). Conclusions: The tested new probe worked very well in small children. The clinical implications of the large gaps found between PETCO 2 and PgCO2 values in acutely ill children and children undergoing elective operations must be investigated further.

Original languageEnglish
Pages (from-to)501-507
Number of pages7
JournalPaediatric Anaesthesia
Volume18
Issue number6
DOIs
Publication statusPublished - Jun 2008

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Stomach
Age Groups
Silicone Elastomers
Manometry
Air
Pediatrics

Keywords

  • Anesthesia
  • Child
  • Endtidal PCO
  • Gastric tonometry
  • Measurement technique
  • Monitoring

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine
  • Pediatrics, Perinatology, and Child Health

Cite this

Intraoperative gastric tonometric examinations in children and infants with a new probe, combined with measurement of the endtidal PCO2 . / Király, Ágnes; Boda, Domokos; Tálosi, Gyula; Boda, K.

In: Paediatric Anaesthesia, Vol. 18, No. 6, 06.2008, p. 501-507.

Research output: Contribution to journalArticle

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