{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T15:50:14Z","timestamp":1747151414525,"version":"3.40.5"},"reference-count":26,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2024,10,17]],"date-time":"2024-10-17T00:00:00Z","timestamp":1729123200000},"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":["Prenatal Diagnosis"],"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>The significance of fetoscopic laser photocoagulation (FLP) in stage I twin\u2013twin transfusion syndrome (TTTS) remains controversial. This study aimed to clarify the outcomes and prognostic factors of stage I TTTS after FLP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>We conducted a retrospective cohort study on patients with stage I TTTS who underwent FLP in Japan. The primary outcome was neonatal survival at 28\u00a0days. The adjusted odds ratios (aOR) of pre\u2010 and intraoperative factors for mortality in recipient and donor twins were calculated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>This study included 272 twin pairs. The survival rate of at least one twin and both twins was 98% (267 pairs) and 85% (232 pairs), respectively. Survival of the recipient twin was observed in 253 cases (93%). No factor was associated with the mortality of the recipients. Among the donor twins, 246 (90%) survived. Preoperative twin anemia\u2010polycythemia sequence (aOR, 17.45; 95% CI, 3.16\u201396.31) and arterio\u2010arterial vascular anastomosis (AAA) identified at FLP (aOR, 2.78; 95% CI, 1.10\u20137.06) were independently associated with mortality of the donors.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The neonatal survival rate for both recipient and donor twins was &gt;\u00a090% among patients with stage I TTTS who underwent FLP. AAA is a risk factor for mortality in donors following FLP, though the pathophysiology of AAA remains to be clarified.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pd.6691","type":"journal-article","created":{"date-parts":[[2024,10,18]],"date-time":"2024-10-18T04:15:23Z","timestamp":1729224923000},"page":"1548-1555","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Predictive Indicators and Outcomes of Pregnancies Affected by Stage I Twin\u2013Twin Transfusion Syndrome Treated With Fetoscopic Laser Photocoagulation"],"prefix":"10.1002","volume":"44","author":[{"given":"Maiko","family":"Wagata","sequence":"first","affiliation":[{"name":"Maternal Fetal Medicine Osaka Women's and Children's Hospital  Izumi 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