{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T17:18:37Z","timestamp":1779297517840,"version":"3.51.4"},"reference-count":13,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2020,1,1]],"date-time":"2020-01-01T00:00:00Z","timestamp":1577836800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["SAGE Open Medical Case Reports"],"published-print":{"date-parts":[[2020,1]]},"abstract":"<jats:p> Fetomaternal hemorrhage is referred to as the passage of fetal blood into the maternal circulation. Massive hemorrhage can cause severe fetal anemia, affecting fetal and neonatal outcomes. A neonatal hemoglobin concentration (Hb), which is reportedly a significant prognostic factor, of &lt;5.0\u2009g\/dL has been reported to carry a high risk of poor outcomes (death and major morbidity). We present a case of massive fetomaternal hemorrhage with the lowest value of neonatal Hb ever previously reported in a survivor, who subsequently met all the developmental milestones at the corrected age of 18\u2009months. A male infant born at 27\u2009weeks gestation, weighing 998\u2009g, presented with severe anemia with an Hb of 1.2\u2009g\/dL and an HbF level in the mother\u2019s blood of 2.4%, which led to a diagnosis of fetomaternal hemorrhage. Since there were no findings of hypovolemia, exchange transfusion was performed for prompt correction of the severe anemia without precipitating volume overload. The present case suggested that exchange transfusion might promptly correct anemia in patients with fetomaternal hemorrhage without hypovolemia without causing volume overload. <\/jats:p>","DOI":"10.1177\/2050313x20941984","type":"journal-article","created":{"date-parts":[[2020,7,17]],"date-time":"2020-07-17T11:46:30Z","timestamp":1594986390000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Survival of an infant with massive fetomaternal hemorrhage with a neonatal hemoglobin concentration of 1.2 g\/dL without evident neurodevelopmental sequelae"],"prefix":"10.1177","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8384-7183","authenticated-orcid":false,"given":"Jun","family":"Miyahara","sequence":"first","affiliation":[{"name":"Department of Neonatology, Seirei-Hamamatsu General Hospital, Hamamatsu City, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Sugiura","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Seirei-Hamamatsu General Hospital, Hamamatsu City, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shigeru","family":"Ohki","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Seirei-Hamamatsu General Hospital, Hamamatsu City, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2020,7,17]]},"reference":[{"key":"bibr1-2050313X20941984","unstructured":"Cunningham FG, Leveno KJ, Bloom SL, et al. 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