{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,3]],"date-time":"2025-05-03T03:40:03Z","timestamp":1746243603046,"version":"3.40.4"},"reference-count":22,"publisher":"Walter de Gruyter GmbH","issue":"4","license":[{"start":{"date-parts":[[2025,1,6]],"date-time":"2025-01-06T00:00:00Z","timestamp":1736121600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,5,26]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec id=\"j_jpm-2024-0202_abs_001\">\n                  <jats:title>Objectives<\/jats:title>\n                  <jats:p>To describe obstetric characteristics and perinatal outcomes in a serie of fetuses with Sacrococcygeal teratoma (SCT) and propose a novel index to assess postnatal mortality based on the THC ratio and the addition of the presence of polyhydramnios.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec id=\"j_jpm-2024-0202_abs_002\">\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A retrospective study in a referral teaching hospital between 2013 and 2023. A descriptive analysis and a receiver operating characteristic (ROC) curve were performed to the determine the optimal cutoff value of the tumor volume to head circumference ratio (THC) plus polyhydramnios based on optimal sensitivity and specificity.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec id=\"j_jpm-2024-0202_abs_003\">\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Eleven out of 15 fetuses were included in our series during the study period. The median gestational age at prenatal diagnosis was 30.9\u00a0weeks and the median gestational age at birth was 35.8\u00a0weeks. Seven patients developed polyhydramnios. There was no intrauterine death. There were four deaths after birth (36.4\u202f%). A cutoff value of THC plus polyhydramnios higher than 3.0 was associated with postnatal mortality with 100\u202f% sensitivity and 86\u202f% specificity. There was no significant difference comparing tumor volume to fetal weight ratio (TFR) with THC plus polyhydramnios.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec id=\"j_jpm-2024-0202_abs_004\">\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>We report a high postnatal mortality of 36\u202f% among fetuses with diagnosis of SCT. Additionally, we propose a potential useful index associated with postnatal mortality based on the THC and the addition of polyhydramnios with a sensitivity of 100\u202f%.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1515\/jpm-2024-0202","type":"journal-article","created":{"date-parts":[[2025,1,3]],"date-time":"2025-01-03T16:20:34Z","timestamp":1735921234000},"page":"449-453","source":"Crossref","is-referenced-by-count":0,"title":["Proposal of a novel index in assessing perinatal mortality in prenatal diagnosis of Sacrococcygeal teratoma"],"prefix":"10.1515","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5926-7266","authenticated-orcid":false,"given":"Pedro","family":"Llancar\u00ed","sequence":"first","affiliation":[{"name":"Emergency Department , 281312 Instituto Nacional Materno Perinatal , Lima , Peru"},{"name":"Faculty of Medicine, Universidad Nacional Mayor de San Marcos , Lima , Peru"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-7371-5475","authenticated-orcid":false,"given":"Diego","family":"Velarde-Garc\u00eda","sequence":"additional","affiliation":[{"name":"Emergency Department , 281312 Instituto Nacional Materno Perinatal , Lima , Peru"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0654-7408","authenticated-orcid":false,"given":"Rommy H.","family":"Novoa","sequence":"additional","affiliation":[{"name":"High-Risk Pregnancy Unit, Obstetrics and Perinatology Department , 281312 Instituto Nacional Materno Perinatal , Lima , Peru"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2888-1394","authenticated-orcid":false,"given":"Walter","family":"Ventura","sequence":"additional","affiliation":[{"name":"Fetal Medicine Unit, Grupo CERAS, Clinica Anglo Americana, British Medical Hospital , Lima , Peru"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2025,1,6]]},"reference":[{"key":"2025050303033117172_j_jpm-2024-0202_ref_001","doi-asserted-by":"crossref","unstructured":"Teilum, G. 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