Preoxygenation in children: for how long?

R. L.R. Videira, P. P.R. Neto, R. V.Gomide do Amaral, Judith (Judy) Freeman

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Although preoxygenation has been extensively studied, to our knowledge this is the first study addressing its optimal length in children, who form a high risk group for developing hypoxaemia during induction of anaesthesia. Recommended preoxygenation times in children range between 1 and 4 min, but whether one of these times maintains arterial oxygen saturation (Sao2) at an adequate level for a longer time period is unknown. This study was performed on 11 healthy children, randomly distributed into either Group 1 (1 min of preoxygenation, n = 6) or Group 2 (3 min of preoxygenation, n = 5). Sao2 was measured by pulse oximetry. While the patients were breathing room air, Sao2 was similar in both groups (97%) and rose to 100% after preoxygenation in all patients. After intravenous induction of anaesthesia and muscle relaxation, all patients became apnoeic. The time taken for the Sao2 to decrease to 90% was measured. In Group 1 this occurred in 91 s, whereas Group 2 required 144 s. Thus, a 3‐min rather than a 1‐min period of preoxygenation would appear to maintain Sao2 at a safe level for a longer time in children.

Original languageEnglish (US)
Pages (from-to)109-111
Number of pages3
JournalActa Anaesthesiologica Scandinavica
Volume36
Issue number2
DOIs
StatePublished - Jan 1 1992
Externally publishedYes

Fingerprint

Intravenous Anesthesia
Muscle Relaxation
Oximetry
Respiration
Anesthesia
Air
Oxygen
Hypoxia

Keywords

  • Oxygen saturation
  • pediatric anesthesia
  • preoxygenation

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

Cite this

Videira, R. L. R., Neto, P. P. R., do Amaral, R. V. G., & Freeman, J. J. (1992). Preoxygenation in children: for how long? Acta Anaesthesiologica Scandinavica, 36(2), 109-111. https://doi.org/10.1111/j.1399-6576.1992.tb03433.x

Preoxygenation in children : for how long? / Videira, R. L.R.; Neto, P. P.R.; do Amaral, R. V.Gomide; Freeman, Judith (Judy).

In: Acta Anaesthesiologica Scandinavica, Vol. 36, No. 2, 01.01.1992, p. 109-111.

Research output: Contribution to journalArticle

Videira, RLR, Neto, PPR, do Amaral, RVG & Freeman, JJ 1992, 'Preoxygenation in children: for how long?', Acta Anaesthesiologica Scandinavica, vol. 36, no. 2, pp. 109-111. https://doi.org/10.1111/j.1399-6576.1992.tb03433.x
Videira, R. L.R. ; Neto, P. P.R. ; do Amaral, R. V.Gomide ; Freeman, Judith (Judy). / Preoxygenation in children : for how long?. In: Acta Anaesthesiologica Scandinavica. 1992 ; Vol. 36, No. 2. pp. 109-111.
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