{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T14:12:54Z","timestamp":1774015974083,"version":"3.50.1"},"reference-count":17,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2014,12,18]],"date-time":"2014-12-18T00:00:00Z","timestamp":1418860800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet &amp;amp; Gyne"],"published-print":{"date-parts":[[2015,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To evaluate differences between international fetal centers in their treatment of twin\u2013twin transfusion syndrome (<jats:styled-content style=\"fixed-case\">TTTS<\/jats:styled-content>) by fetoscopic placental laser coagulation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Fetal therapy centers worldwide were sent a web\u2010based questionnaire. Participants were identified through networks and through scientific presentations and papers. Questions included physician and center demographics, treatment criteria, operative technique and instrumentation. Laser treatment was compared between low\u2010volume (&lt;\u200920 procedures\/year) and high\u2010volume (\u2265\u200920 procedures\/year) centers. Data were analyzed using descriptive statistics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 106 fetal therapy specialists approached, 76 (72%) from 64 centers in 25 countries responded. Of these, 48% (31\/64) of centers and 63% (48\/76) of operators performed fewer than 20 laser procedures annually. Comparison of low\u2010 and high\u2010volume centers showed differences in technique, gestational age limits for treatment and geography. High\u2010volume centers more often used the Solomon technique and applied wider gestational age limits for treatment. Europe and Asia had more high\u2010volume centers, whereas South America, the Middle East and Australia had mainly low\u2010volume centers.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This survey revealed significant differences between fetal centers in several aspects of fetoscopic placental laser therapy for <jats:styled-content style=\"fixed-case\">TTTS<\/jats:styled-content>. Increasing awareness of <jats:styled-content style=\"fixed-case\">TTTS<\/jats:styled-content>, and of laser coagulation as its preferred treatment, will lead to an increase in centers offering this modality, especially in Asia, Africa, South America and the Middle East. Considering the rarity of <jats:styled-content style=\"fixed-case\">TTTS<\/jats:styled-content> and the relative complexity of the procedure, developing international guidelines for techniques, instrumentation and suggested minimum volumes per center may aid in optimizing perinatal outcome. Copyright \u00a9 2014 ISUOG. Published by John Wiley &amp; Sons Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/uog.14670","type":"journal-article","created":{"date-parts":[[2014,9,23]],"date-time":"2014-09-23T07:29:40Z","timestamp":1411457380000},"page":"168-174","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["A worldwide survey of laser surgery for twin\u2013twin transfusion syndrome"],"prefix":"10.1002","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2274-8357","authenticated-orcid":false,"given":"J.","family":"Akkermans","sequence":"first","affiliation":[{"name":"Department of Obstetrics Leiden University Medical Center  Leiden The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S. H. P.","family":"Peeters","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Leiden University Medical Center  Leiden The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. M.","family":"Middeldorp","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Leiden University Medical Center  Leiden The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F. J.","family":"Klumper","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Leiden University Medical Center  Leiden The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E.","family":"Lopriore","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics Leiden University Medical Center  Leiden The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Ryan","sequence":"additional","affiliation":[{"name":"Fetal Medicine Unit, Mount Sinai Hospital University of Toronto  Toronto ON Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Oepkes","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Leiden University Medical Center  Leiden The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2014,12,18]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa032597"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/14651858.CD002073.pub2"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(13)62419-8"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/pd.2549"},{"key":"e_1_2_6_6_1","first-page":"1046","article-title":"Fetoscopic neodymium:YAG laser occlusion of placental vessels in severe twin\u2013twin transfusion syndrome","volume":"75","author":"De Lia JE","year":"1990","journal-title":"Obstet Gynecol"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199501263320404"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1080\/14767050701591827"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006254-199812010-00001"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2010.10.910"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.12402"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1270116"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMsa1010705"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMsa012337"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11605-011-1731-3"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2012.31.6.941"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijgo.2012.01.016"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1159\/000331165"}],"container-title":["Ultrasound in Obstetrics &amp; Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fuog.14670","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/uog.14670","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,5]],"date-time":"2023-10-05T05:09:11Z","timestamp":1696482551000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/uog.14670"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,12,18]]},"references-count":17,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2015,2]]}},"alternative-id":["10.1002\/uog.14670"],"URL":"https:\/\/doi.org\/10.1002\/uog.14670","archive":["Portico"],"relation":{},"ISSN":["0960-7692","1469-0705"],"issn-type":[{"value":"0960-7692","type":"print"},{"value":"1469-0705","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,12,18]]},"assertion":[{"value":"2014-07-25","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2014-09-04","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2014-12-18","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}