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Noninvasive monitoring of gas in the lungs and intestines of newborn infants using diode lasers: feasibility study.

Lundin, Patrik (author)
Krite Svanberg, Emilie (author)
Lund University,Lunds universitet,Anestesiologi och intensivvård,Forskargrupper vid Lunds universitet,Anaesthesiology and Intensive Care Medicine,Lund University Research Groups
Cocola, Lorenzo (author)
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Xu, Märta Lewander (author)
Somesfalean, Gabriel (author)
Andersson-Engels, Stefan (author)
Jahr, John (author)
Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Department of Clinical Sciences, Lund,Faculty of Medicine
Fellman, Vineta (author)
Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
Svanberg, Katarina (author)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
Svanberg, Sune (author)
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 (creator_code:org_t)
2013
2013
English.
In: Journal of Biomedical Optics. - 1083-3668. ; 18:12
Related links:
http://www.ncbi.nlm....
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • ABSTRACT. Preterm newborn infants have a high morbidity rate. The most frequently affected organs where free gas is involved are the lungs and intestines. In respiratory distress syndrome, both hyperexpanded and atelectatic (collapsed) areas occur, and in necrotizing enterocolitis, intramural gas may appear in the intestine. Today, these conditions are diagnosed with x-ray radiography. A bed-side, rapid, nonintrusive, and gas-specific technique for in vivo gas sensing would improve diagnosis. We report the use of noninvasive laser spectroscopy, for the first time, to assess gas content in the lungs and intestines of three full-term infants. Water vapor and oxygen were studied with two low-power diode lasers, illuminating the skin and detecting light a few centimeters away. Water vapor was easily detected in the intestines and was also observed in the lungs. The relatively thick chest walls of the infants prevented detection of the weaker oxygen signal in this study. However, results from a previous phantom study, together with scaling of the results presented here to the typical chest-wall thickness of preterm infants, suggest that oxygen also should be detectable in their lungs.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Industriell bioteknik -- Bioteknisk apparatteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Industrial Biotechnology -- Bioengineering Equipment (hsv//eng)

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