{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T03:31:26Z","timestamp":1787801486699,"version":"build-2784847793"},"reference-count":20,"publisher":"S. Karger AG","issue":"4","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neonatology"],"published-print":{"date-parts":[[2014]]},"abstract":"<b><i>Background:<\/i><\/b> Non-invasive cardiac output monitoring (NICOM; NICOM\u2122) may be useful in the management of extremely premature preterm infants. <b><i>Objectives:<\/i><\/b> To evaluate a new bioreactance-based method of continuous NICOM in preterm infants following patent ductus arteriosus (PDA) ligation. <b><i>Methods:<\/i><\/b> Infants underwent three paired NICOM and echocardiography assessments of stroke volume (SV) and left ventricular output (LVO) in the postoperative period: at 1, 6-8, and 16-18 h postoperatively. NICOM- and echocardiography-measured SV and LVO during those periods were compared using Bland-Altman analysis and the intraclass correlation coefficient (ICC). <b><i>Results:<\/i><\/b> Twenty-five infants with a median (interquartile range) gestational age and birth weight of 25.0 weeks (24.5-25.9) and 700 g (615-775), respectively, were included. The overall systematic bias (limits of agreement) across all time points between the NICOM and echocardiography SV readings was 39% (8-69) with NICOM consistently underestimating echocardiography values. There was moderate consistency between NICOM and echocardiography SV values (ICC 0.78, p < 0.001). Compared with the 1-hour scans, the 6- to 8- and 16- to 18-hour scans had increased biases of 7.9% (95% CI 2.5-13.2) and 9.7% (95% CI 3.6-15.8), respectively. <b><i>Conclusion:<\/i><\/b> Continuous LVO measurement using NICOM was feasible and demonstrated a consistent systematic bias compared with echocardiography in unstable extremely preterm infants without a PDA ligation. NICOM may be used as a trending tool for continuous monitoring in this population, but wide limits of agreement and increasing bias over time suggest it is not interchangeable with echocardiography.<\/jats:p>","DOI":"10.1159\/000365278","type":"journal-article","created":{"date-parts":[[2014,10,1]],"date-time":"2014-10-01T08:20:41Z","timestamp":1412151641000},"page":"330-336","source":"Crossref","is-referenced-by-count":34,"title":["Non-Invasive Cardiac Output Monitoring in Preterm Infants Undergoing Patent Ductus Arteriosus Ligation: A Comparison with Echocardiography"],"prefix":"10.1159","volume":"106","author":[{"given":"Dany E.","family":"Weisz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amish","family":"Jain","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph","family":"Ting","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick J.","family":"McNamara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Afif","family":"EL-Khuffash","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2014,10,1]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1016\/j.vascn.2011.03.006"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1378\/chest.12-1274"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1186\/cc7884"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1007\/s10877-008-9112-5"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-007-0640-0"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1186\/cc8344"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1159\/000337295"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2007.01.035"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2012.07.016"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2012.12.094"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2010.01.011"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1038\/jp.2008.101"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2011.09.027"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1016\/S0894-7317(03)00335-3"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1152\/ajpheart.00195.2007"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1017\/S1047951101000099"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1002\/nbm.2927"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2013.08.019"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1136\/adc.2010.189142"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-003-1967-9"}],"container-title":["Neonatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/365278","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/365278","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T17:57:33Z","timestamp":1745431053000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000365278"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":20,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2014,11,1]]},"published-print":{"date-parts":[[2014,11,6]]}},"URL":"https:\/\/doi.org\/10.1159\/000365278","archive":["Portico"],"relation":{},"ISSN":["1661-7800","1661-7819"],"issn-type":[{"value":"1661-7800","type":"print"},{"value":"1661-7819","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014]]}}}