{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T05:02:11Z","timestamp":1789534931386,"version":"build-2803163510"},"reference-count":26,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Ultrasound Medicine"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To evaluate changes in fetal renal artery Doppler (RAD) indices before and after fetoscopic laser coagulation (FLC) in monochorionic diamniotic (MCDA) twin pregnancies with twin\u2010to\u2010twin transfusion syndrome (TTTS), and to assess their potential role in predicting procedural success and TTTS diagnosis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This prospective single\u2010center before\u2010and\u2010after cohort study included MCDA twin pregnancies treated with FLC for TTTS between 16 and 26\u2009weeks' gestation. Fetal RAD pulsatility index (PI), resistance index (RI), and peak systolic velocity (PSV), along with umbilical and middle cerebral artery Doppler parameters, were measured preoperatively and at 24\u201348\u2009hours and 10\u201315\u2009days post\u2010procedure. Only successful FLC procedures without early complications were analyzed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Thirty\u2010one pregnancies were analyzed. In donor fetuses, RAD PI decreased significantly following FLC at 24\u201348\u2009hours compared with preoperative values (mean\u2009\u00b1\u2009SD: 1.80\u2009\u00b1\u20090.26 versus 1.69\u2009\u00b1\u20090.22;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001), with a further significant reduction at 10\u201315\u2009days post\u2010procedure (1.45\u2009\u00b1\u20090.26;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.001). Donor RAD PSV increased significantly after FLC (15.76\u2009\u00b1\u20093.25 versus 17.28\u2009\u00b1\u20093.19;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001), with continued elevation at follow\u2010up (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001). Recipient fetuses also demonstrated a significant reduction in RAD PI at 24\u201348\u2009hours (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001), though no significant change was observed between post\u2010procedural time points. Preoperatively, RAD PSV differed significantly between donor and recipient fetuses (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Fetal RAD parameters, particularly donor RAD PI, demonstrate significant changes following FLC and may reflect restoration of systemic circulation in TTTS. These findings support the potential role of RAD measurements in TTTS assessment and prognostication, warranting further prospective validation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jum.70287","type":"journal-article","created":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T23:05:16Z","timestamp":1778108716000},"page":"2181-2190","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Fetal Renal Artery Doppler Changes in Monochorionic Diamniotic Twins Treated by Fetoscopic Lazer Coagulation"],"prefix":"10.1002","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3833-9109","authenticated-orcid":false,"given":"Savci Bekir","family":"Telek","sequence":"first","affiliation":[{"name":"Department of Obstetrics, Gynecology and Reproductive Sciences Yale School of Medicine  New Haven Connecticut USA"},{"name":"Department of Obstetrics and Gynecology Kackar State Hospital  Rize Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tugba Sarac","family":"Sivrikoz","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Istanbul Medical Faculty  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eylem","family":"Essizoglu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Tatvan State Hospital  Bitlis Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Recep","family":"Has","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Istanbul Medical Faculty  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibrahim Halil","family":"Kalelioglu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Istanbul Medical Faculty  Istanbul 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