{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T16:10:05Z","timestamp":1771949405163,"version":"3.50.1"},"reference-count":19,"publisher":"FapUNIFESP (SciELO)","issue":"8","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Assoc. Med. Bras."],"abstract":"<jats:p>SUMMARY  OBJECTIVE: To describe the perinatal outcomes of monochorionic pregnancies complicated with twin-to-twin transfusion syndrome, laser photocoagulation of placental anastomoses was presented as an initial experience in a reference center in South Brazil.  METHODS: Case series between October 2020 and March 2024, including monochorionic twin\/triplet pregnancies complicated with twin-to-twin transfusion syndrome. This syndrome was classified according to Quintero's stage. The maternal and surgical characteristics, as well as the perinatal outcomes were assessed.  RESULTS: Of the 17 pregnant women diagnosed with twin-to-twin transfusion syndrome, 11 (64.7%) were treated at our center, including 9 monochorionic-diamniotic, 1 dichorionic-triamniotic, and 1 monochorionic-diamniotic triplet. Of the 9 laser ablations of placental anastomoses included in the study, 8 (88.9%) had 2 or more live births, and 1 (11.1%) had no live births. The mean gestational age at surgery was 21.9 weeks. Regarding Quintero stage at the time of surgery, 2 were stage I, 3 were stage II, and 4 were stage IV. The interval between surgery and delivery was 10.8 weeks, with a mean gestational age at delivery of 32.7 weeks. The mean birth weight of the recipient was 1,845 g, and that of the donor was 1,667.8 g.  CONCLUSION: Our initial experience with laser ablation of placental anastomoses in monochorionic pregnancies complicated by twin-to-twin transfusion syndrome showed good perinatal outcomes with lower complication rates.<\/jats:p>","DOI":"10.1590\/1806-9282.20250330","type":"journal-article","created":{"date-parts":[[2025,9,19]],"date-time":"2025-09-19T15:04:11Z","timestamp":1758294251000},"source":"Crossref","is-referenced-by-count":1,"title":["Perinatal outcomes after laser photocoagulation of anastomoses in monochorionic pregnancies"],"prefix":"10.1590","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5495-9925","authenticated-orcid":false,"given":"Talita","family":"Micheletti","sequence":"first","affiliation":[{"name":"Santa Casa de Porto Alegre,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-4573-3135","authenticated-orcid":false,"given":"Gabriela","family":"Pigozzi","sequence":"additional","affiliation":[{"name":"Santa Casa de Porto Alegre,  Brazil; Universidade Federal de Ci\u00eancias da Sa\u00fade de Porto Alegre,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3149-0298","authenticated-orcid":false,"given":"Marina Pereira","family":"Domingues","sequence":"additional","affiliation":[{"name":"Santa Casa de Porto Alegre,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-8191-5095","authenticated-orcid":false,"given":"Mariana Ziliotto","family":"Sgnaolin","sequence":"additional","affiliation":[{"name":"Santa Casa de Porto Alegre,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2505-2889","authenticated-orcid":false,"given":"Marcelo Brand\u00e3o da","family":"Silva","sequence":"additional","affiliation":[{"name":"Santa Casa de Porto Alegre,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0091-8431","authenticated-orcid":false,"given":"Mauricio Obal","family":"Colvero","sequence":"additional","affiliation":[{"name":"Santa Casa de Porto Alegre,  Brazil; Universidade Federal de Ci\u00eancias da Sa\u00fade de Porto Alegre,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6145-2532","authenticated-orcid":false,"given":"Edward","family":"Araujo J\u00fanior","sequence":"additional","affiliation":[{"name":"Universidade Federal de S\u00e3o Paulo,  Brazil; Universidade Municipal de S\u00e3o Caetano do Sul,  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