{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,15]],"date-time":"2023-11-15T14:58:15Z","timestamp":1700060295698},"reference-count":12,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2005,11,22]],"date-time":"2005-11-22T00:00:00Z","timestamp":1132617600000},"content-version":"vor","delay-in-days":4100,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Prenatal Diagnosis"],"published-print":{"date-parts":[[1994,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Because a vascular aetiology has been suggested for the limb and oromandibular defects described after chorionic villus sampling (CVS), to determine whether transabdominal (TA) CVS causes noticeable changes in umbilical artery velocity waveforms in first\u2010trimester pregnancies, the pulsatility index (PI) of the umbilical artery was evaluated before and after TA\u2010CVS in 175 pregnancies sampled between 10\u00b70 and 13\u00b70 weeks' gestation. In 139 uncomplicated pregnancies, the mean PI values (with 95 per cent confidence interval) were before TA\u2010CVS 2\u00b7751 (2\u00b7692\u20132\u00b7809), after 10 min 2\u00b7723 (2\u00b7697\u20132\u00b7809), and after 1 h 2\u00b7781 (2\u00b7722\u20132\u00b7840). There were no significant changes in PI relative to the CVS procedure either in pregnancies with an abnormal result or in those ending in spontaneous abortion. Our data do not support any statistically significant change in umbilical artery PI relative to TA\u2010CVS in first\u2010trimester pregnancies. This procedure, despite its invasive character, does not appear to affect the feto\u2010placental circulation.<\/jats:p>","DOI":"10.1002\/pd.1970140906","type":"journal-article","created":{"date-parts":[[2007,3,4]],"date-time":"2007-03-04T10:05:33Z","timestamp":1173002733000},"page":"799-802","source":"Crossref","is-referenced-by-count":6,"title":["Umbilical artery velocity waveforms before and after chorionic villus sampling"],"prefix":"10.1002","volume":"14","author":[{"given":"Rosa Maria","family":"Ibba","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni","family":"Monni","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni","family":"Olla","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,11,22]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.1870190603"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/0301-5629(90)90140-8"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1990.tb16245.x"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(91)91374-4"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(91)90036-O"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(92)90648-M"},{"key":"e_1_2_1_8_1","first-page":"365","article-title":"Transvaginal color Doppler assessment of the uteroplacental circulation in early pregnancy","volume":"77","author":"Jurkovic D.","year":"1991","journal-title":"Obstet. 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