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Reference intervals for end-tidal carbon monoxide of preterm neonates

Objectives We constructed reference intervals for end-tidal carbon monoxide (ETCOc) levels of neonates 28 0/7 to 34 6/7 weeks gestation in order to assess hemolytic rate. Study design This is a prospective four-NICU study in Bangkok, Thailand, and Utah, USA. Results Of 226 attempted measurements, 92...

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Published in:Journal of perinatology 2022-01, Vol.42 (1), p.116-120
Main Authors: Pakdeeto, Sasikarn, Christensen, Thomas R., Bahr, Timothy M., Gerday, Erick, Sheffield, Mark J., Christensen, Kyle S., Supapannachart, Sarayut, Nuntnarumit, Pracha, Sukwiset, Saranya, Ohls, Robin K., Christensen, Robert D.
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container_title Journal of perinatology
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creator Pakdeeto, Sasikarn
Christensen, Thomas R.
Bahr, Timothy M.
Gerday, Erick
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Nuntnarumit, Pracha
Sukwiset, Saranya
Ohls, Robin K.
Christensen, Robert D.
description Objectives We constructed reference intervals for end-tidal carbon monoxide (ETCOc) levels of neonates 28 0/7 to 34 6/7 weeks gestation in order to assess hemolytic rate. Study design This is a prospective four-NICU study in Bangkok, Thailand, and Utah, USA. Results Of 226 attempted measurements, 92% were successful. Values from day 1 through 28 were charted and upper (>95th percentile) reference interval limits calculated. During the entire 28 days, the ETCOc upper reference intervals from babies in Bangkok were higher than those in Utah ( p   0.1). Similar to term neonates, preterm neonates in Bangkok and Utah had higher ETCOc values during the first 48 h after birth than thereafter ( p  
doi_str_mv 10.1038/s41372-021-01207-2
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Study design This is a prospective four-NICU study in Bangkok, Thailand, and Utah, USA. Results Of 226 attempted measurements, 92% were successful. Values from day 1 through 28 were charted and upper (&gt;95th percentile) reference interval limits calculated. During the entire 28 days, the ETCOc upper reference intervals from babies in Bangkok were higher than those in Utah ( p  &lt; 0.01). No differences were found due to sex, or earliest vs. latest gestation at birth (both p  &gt; 0.1). Similar to term neonates, preterm neonates in Bangkok and Utah had higher ETCOc values during the first 48 h after birth than thereafter ( p  &lt; 0.01). Conclusions Using this methodology, and the reference interval chart, the hemolytic rate of preterm infants ≥28 weeks can be assessed.</description><identifier>ISSN: 0743-8346</identifier><identifier>EISSN: 1476-5543</identifier><identifier>DOI: 10.1038/s41372-021-01207-2</identifier><identifier>PMID: 34556800</identifier><language>eng</language><publisher>New York: Nature Publishing Group US</publisher><subject>692/53/2421 ; 692/53/2422 ; 692/699/1541 ; Birth ; Breath Tests ; Carbon monoxide ; Carbon Monoxide - analysis ; Female ; Gestation ; Hemolysis ; Humans ; Infant, Newborn ; Infant, Premature ; Intensive care ; Intervals ; Medicine ; Medicine &amp; Public Health ; Neonatal care ; Neonates ; Newborn babies ; Pediatric Surgery ; Pediatrics ; Pregnancy ; Premature babies ; Premature birth ; Prospective Studies ; Reference Values ; Thailand</subject><ispartof>Journal of perinatology, 2022-01, Vol.42 (1), p.116-120</ispartof><rights>The Author(s), under exclusive licence to Springer Nature America, Inc. 2021</rights><rights>2021. The Author(s), under exclusive licence to Springer Nature America, Inc.</rights><rights>The Author(s), under exclusive licence to Springer Nature America, Inc. 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-32b85da605945c15b573a1366ba443ebc6314981b87f0bd92f60a48706bf91a03</citedby><cites>FETCH-LOGICAL-c375t-32b85da605945c15b573a1366ba443ebc6314981b87f0bd92f60a48706bf91a03</cites><orcidid>0000-0002-7946-0290 ; 0000-0003-4587-9445 ; 0000-0003-2865-8878 ; 0000-0001-5872-582X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34556800$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pakdeeto, Sasikarn</creatorcontrib><creatorcontrib>Christensen, Thomas R.</creatorcontrib><creatorcontrib>Bahr, Timothy M.</creatorcontrib><creatorcontrib>Gerday, Erick</creatorcontrib><creatorcontrib>Sheffield, Mark J.</creatorcontrib><creatorcontrib>Christensen, Kyle S.</creatorcontrib><creatorcontrib>Supapannachart, Sarayut</creatorcontrib><creatorcontrib>Nuntnarumit, Pracha</creatorcontrib><creatorcontrib>Sukwiset, Saranya</creatorcontrib><creatorcontrib>Ohls, Robin K.</creatorcontrib><creatorcontrib>Christensen, Robert D.</creatorcontrib><title>Reference intervals for end-tidal carbon monoxide of preterm neonates</title><title>Journal of perinatology</title><addtitle>J Perinatol</addtitle><addtitle>J Perinatol</addtitle><description>Objectives We constructed reference intervals for end-tidal carbon monoxide (ETCOc) levels of neonates 28 0/7 to 34 6/7 weeks gestation in order to assess hemolytic rate. Study design This is a prospective four-NICU study in Bangkok, Thailand, and Utah, USA. Results Of 226 attempted measurements, 92% were successful. Values from day 1 through 28 were charted and upper (&gt;95th percentile) reference interval limits calculated. During the entire 28 days, the ETCOc upper reference intervals from babies in Bangkok were higher than those in Utah ( p  &lt; 0.01). No differences were found due to sex, or earliest vs. latest gestation at birth (both p  &gt; 0.1). Similar to term neonates, preterm neonates in Bangkok and Utah had higher ETCOc values during the first 48 h after birth than thereafter ( p  &lt; 0.01). Conclusions Using this methodology, and the reference interval chart, the hemolytic rate of preterm infants ≥28 weeks can be assessed.</description><subject>692/53/2421</subject><subject>692/53/2422</subject><subject>692/699/1541</subject><subject>Birth</subject><subject>Breath Tests</subject><subject>Carbon monoxide</subject><subject>Carbon Monoxide - analysis</subject><subject>Female</subject><subject>Gestation</subject><subject>Hemolysis</subject><subject>Humans</subject><subject>Infant, Newborn</subject><subject>Infant, Premature</subject><subject>Intensive care</subject><subject>Intervals</subject><subject>Medicine</subject><subject>Medicine &amp; Public Health</subject><subject>Neonatal care</subject><subject>Neonates</subject><subject>Newborn babies</subject><subject>Pediatric Surgery</subject><subject>Pediatrics</subject><subject>Pregnancy</subject><subject>Premature babies</subject><subject>Premature birth</subject><subject>Prospective Studies</subject><subject>Reference Values</subject><subject>Thailand</subject><issn>0743-8346</issn><issn>1476-5543</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKBDEQRYMoOj5-wIU0uHETrbx7liLjAwRBdB2S7mppmU7GpEf07804PsCFq1rUubeKQ8ghg1MGoj7LkgnDKXBGgXEwlG-QCZNGU6Wk2CQTMFLQWki9Q3ZzfgZYLc022RFSKV0DTMjsHjtMGBqs-jBienXzXHUxVRhaOvatm1eNSz6GaoghvvUtVrGrFgkLO1QBY3Aj5n2y1ZUgHnzNPfJ4OXu4uKa3d1c3F-e3tBFGjVRwX6vWaVBTqRqmvDLCMaG1d1IK9I0WTE5r5mvTgW-nvNPgZG1A-27KHIg9crLuXaT4ssQ82qHPDc7nrnyyzJYro3VpgBV6_Ad9jssUyneWa85FzQRjheJrqkkx54SdXaR-cOndMrAryXYt2RbJ9lOy5SV09FW99AO2P5FvqwUQayCXVXjC9Hv7n9oPfHaFaQ</recordid><startdate>20220101</startdate><enddate>20220101</enddate><creator>Pakdeeto, Sasikarn</creator><creator>Christensen, Thomas R.</creator><creator>Bahr, Timothy M.</creator><creator>Gerday, Erick</creator><creator>Sheffield, Mark J.</creator><creator>Christensen, Kyle S.</creator><creator>Supapannachart, Sarayut</creator><creator>Nuntnarumit, Pracha</creator><creator>Sukwiset, Saranya</creator><creator>Ohls, Robin K.</creator><creator>Christensen, Robert D.</creator><general>Nature Publishing Group US</general><general>Nature Publishing Group</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7RV</scope><scope>7T5</scope><scope>7T7</scope><scope>7U9</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AN0</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>P64</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PJZUB</scope><scope>PKEHL</scope><scope>PPXIY</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-7946-0290</orcidid><orcidid>https://orcid.org/0000-0003-4587-9445</orcidid><orcidid>https://orcid.org/0000-0003-2865-8878</orcidid><orcidid>https://orcid.org/0000-0001-5872-582X</orcidid></search><sort><creationdate>20220101</creationdate><title>Reference intervals for end-tidal carbon monoxide of preterm neonates</title><author>Pakdeeto, Sasikarn ; 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Study design This is a prospective four-NICU study in Bangkok, Thailand, and Utah, USA. Results Of 226 attempted measurements, 92% were successful. Values from day 1 through 28 were charted and upper (&gt;95th percentile) reference interval limits calculated. During the entire 28 days, the ETCOc upper reference intervals from babies in Bangkok were higher than those in Utah ( p  &lt; 0.01). No differences were found due to sex, or earliest vs. latest gestation at birth (both p  &gt; 0.1). Similar to term neonates, preterm neonates in Bangkok and Utah had higher ETCOc values during the first 48 h after birth than thereafter ( p  &lt; 0.01). Conclusions Using this methodology, and the reference interval chart, the hemolytic rate of preterm infants ≥28 weeks can be assessed.</abstract><cop>New York</cop><pub>Nature Publishing Group US</pub><pmid>34556800</pmid><doi>10.1038/s41372-021-01207-2</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-7946-0290</orcidid><orcidid>https://orcid.org/0000-0003-4587-9445</orcidid><orcidid>https://orcid.org/0000-0003-2865-8878</orcidid><orcidid>https://orcid.org/0000-0001-5872-582X</orcidid></addata></record>
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source Springer Nature; Nexis
subjects 692/53/2421
692/53/2422
692/699/1541
Birth
Breath Tests
Carbon monoxide
Carbon Monoxide - analysis
Female
Gestation
Hemolysis
Humans
Infant, Newborn
Infant, Premature
Intensive care
Intervals
Medicine
Medicine & Public Health
Neonatal care
Neonates
Newborn babies
Pediatric Surgery
Pediatrics
Pregnancy
Premature babies
Premature birth
Prospective Studies
Reference Values
Thailand
title Reference intervals for end-tidal carbon monoxide of preterm neonates
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