Placental pathology of resuscitated apparent stillbirth
Pathology(2022)
Abstract
Resuscitated apparent stillbirth (RAS) is defined as an infant with APGAR scores of 0 at 1 minute of life who receives successful resuscitation. Assessment of placental pathology is considered standard of care in such infants, but the clinical significance of these placental findings as they relate to clinical outcomes has yet to be described within the literature. We report the findings of a retrospective study of placental pathology as defined by the Amsterdam and Dublin criteria of RAS infants born in South Australia over an 8-year period. The aim of this study was to assess whether placental pathology was able to predict RAS clinical outcomes of death, survival with adverse neurological outcomes, and survival with normal neurological outcomes. The RAS cohort within our study is small, reflecting the low incidence of RAS. Of the 25 RAS subjects 16 survived, five with abnormal neurological outcomes and 11 with normal neurological outcomes. No statistically significant difference was seen between the clinical outcome groups in the incidence of specific macroscopic and microscopic placental findings. No sentinel lesion was seen in any one clinical outcome group. Relevant placental pathology was found in all but one subject validating the role of placental pathology in determination of the aetiology of RAS. The most common finding was maternal vascular malperfusion. Placental pathology in RAS infants remains relevant but is unable to contribute to the matrix of predictive information available to the clinician and family.
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Key words
Placenta,histopathology,amsterdam criteria,resuscitated apparent stillbirth
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