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J Breath Res. 2009 Dec;3(4):047005. doi: 10.1088/1752-7155/3/4/047005. Epub 2009 Nov 27.

Carbon dioxide absorption and elimination in breath during minimally invasive surgery.

Journal of breath research

Simon Eaton, Merrill McHoney, Luca Giacomello, Maurizio Pacilli, Mark Bishay, Paolo De Coppi, James Wood, Ralph Cohen, Agostino Pierro

Affiliations

  1. Department of Paediatric Surgery, UCL Institute of Child Health and Great Ormond Street Hospital for Children, London, UK.

PMID: 21386202 DOI: 10.1088/1752-7155/3/4/047005

Abstract

Carbon dioxide (CO(2)) is the gas most commonly used to inflate the body cavities during 'keyhole' surgery (e.g. laparoscopy and thoracoscopy). However, CO(2) can be absorbed, leading to increased arterial CO(2) and increased CO(2) elimination from the lungs. These increases in CO(2) are observed following a wide variety of procedures both in adults and in infants and children. Although it is usually assumed that increases in arterial or end-tidal CO(2) directly reflect absorption of CO(2) from body cavities, this is not necessarily true, as either increases in metabolically produced CO(2) or respiratory compromise making it more difficult to eliminate CO(2) could also be responsible for these changes. Recently, a new technique has been introduced which enables absorbed CO(2) to be distinguished from metabolic CO(2).

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