{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T04:28:25Z","timestamp":1777868905679,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,11,26]],"date-time":"2009-11-26T00:00:00Z","timestamp":1259193600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,11,26]],"date-time":"2009-11-26T00:00:00Z","timestamp":1259193600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Fetal Diagn Ther"],"abstract":"<jats:p>The plasma catecholamine concentration was evaluated in umbilical venous blood obtained by cordocentesis performed in 77 fetuses for indications including: nonimmune hydrops; Rh incompatibility; intrauterine growth retardation; polyhydramnios; anomalies; immunological disorders, and possible viral infection. The pH as well as pO&lt;sub&gt;2&lt;\/sub&gt; of the umbilical venous blood showed a notably significant negative correlation with the norepinephrine concentration (r = \u2013\u20130.5607, r = \u2013\u20130.4467); while pCO&lt;sub&gt;2&lt;\/sub&gt; was also significantly correlated with the norepinephrine concentration (r = 0.4955). When the pCO&lt;sub&gt;2&lt;\/sub&gt;\/pO&lt;sub&gt;2&lt;\/sub&gt; ratio was tentatively put up for comparison, the ratio was undoubtedly better correlated (r = 0.60442) with the fetal norepinephrine concentration than any other biochemical variable. Moreover, the ratio over 2.0 suggests that fetal catecholamine values have reached abnormal levels.<\/jats:p>","DOI":"10.1159\/000263584","type":"journal-article","created":{"date-parts":[[2009,11,27]],"date-time":"2009-11-27T16:32:47Z","timestamp":1259339567000},"page":"147-152","source":"Crossref","is-referenced-by-count":12,"title":["Catecholamine Levels and Their Correlation to Blood Gases in Umbilical Venous Blood Obtained by Cordocentesis"],"prefix":"10.1159","author":[{"given":"Kunihiro","family":"Okamura","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takanori","family":"Watanabe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shingo","family":"Tanigawara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidetaka","family":"Endo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitsuru","family":"Iwamoto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Murotsuki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akira","family":"Yajima","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,11,26]]},"container-title":["Fetal Diagnosis and Therapy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000263584","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T12:51:19Z","timestamp":1777553479000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000263584"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,11,26]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000263584","archive":["Portico"],"relation":{},"ISSN":["1015-3837","1421-9964"],"issn-type":[{"value":"1015-3837","type":"print"},{"value":"1421-9964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,11,26]]}}}