TITLE

Rectal luminal PrCO2, measured by automated air tonometry, does not reflect gastric luminal PrCO2 in children

AUTHOR(S)
Weiss, Markus; Schmitz, Achim; Salgo, Bettina; Dullenkopf, Alexander
PUB. DATE
August 2006
SOURCE
Journal of Anesthesia;2006, Vol. 20 Issue 3, p243
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Rectal luminal regional PCO2 (PrCO2) was compared with gastric luminal PrCO2 measured by automated air tonometry at intervals of 10 min in 20 children aged 6–16 years scheduled for elective surgery under general anesthesia. In 5 patients, measurement of rectal PrCO2 failed because of catheter-related problems. In the remaining 15 children, aged 10.6 ± 2.5 years, 19 ± 7 paired rectal and gastric PrCO2 values ( n total, 241) were measured. Bias and precision for gastric compared to rectal PrCO2 was −1.79 kPa and 2.89 kPa. In patients with obvious feces in the rectum, bias (precision) for gastric compared to rectal PrCO2 was −2.7 kPa (2.6 kPa) and in those with empty rectum, −0.75 kPa (1.42 kPa; t-test; P < 0.001). Based on our in vivo data, rectal luminal PrCO2, measured by automated air tonometry, does not reflect gastric luminal PrCO2 in children. Enteral luminal gas production within feces in the rectum seems to be a major source of this disagreement.
ACCESSION #
21844923

 

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