Maternal Floor Infarction Definition

It is moot whether such a lesion which i will call true maternal floor infarction occurs but the term maternal floor infarction is not usually used in this sense.

Maternal floor infarction definition.

Hypertrophic decidual vasculopathy as seen in hypertension. Maternal floor infarction is associated with intrauterine growth retardation and fetal demise. Maternal floor infarction mfi was originally described by benirschke in 1961 as a passing comment accompanied by a figure in an article focused on the examination of the placenta. Maternal floor infarction is not a true infarct.

Massive deposition of intervillous fibrin that entrap the villi of the basal plate extending to a thickness of at least 3 mm. In this study of mfi and the related placental disorder massive perivillous fibrin deposition mfd semiquantitative histologic criteria for these diagnoses are defined and rates of iugr and recurrence are assessed. A tendency to recur in subsequent pregnancies has been reported. Small placental infarcts especially at the edge of the placental disc are considered to be normal at term.

Seen in 0 09 0 5 of placentas. Massive perivillous fibrin deposition mpfd and maternal floor infarction mfi are related placental lesions often associated with fetal death and fetal growth restriction. May be accompanied by massive perivillous fibrin deposition. Large placental infarcts are associated with vascular abnormalities e g.

It frequently recurs in successive pregnancies. Instead it refers to extensive gross thickening of the maternal surface of the placenta with fibrin or matrix often in the context of fetal growth retardation or death. A placental infarction results from the interruption of blood supply to a part of the placenta causing its cells to die. It is characterized by the deposition of fibrin in the decidua basalis and intervillous space where enveloped villi become avascular and sclerotic.

Associated with recurrent abortions stillbirth fetal growth restriction or neurologic impairment. 1 benirschke suggested that lack of fissuring of the decidua basalis in a term placenta was abnormal and he coined the term maternal floor. 1 he described a lesion on the maternal surface of the placenta in which the thin layer of the decidua basalis is covered by small amounts of calcium and fibrin. Maternal floor infarction mfi is a poorly understood placental lesion reportedly associated with intrauterine growth restriction iugr and recurrence.

The condition is associated with adverse perinatal outcome including spontaneous abortion preterm delivery fetal growth restriction stillbirth and long term neurologic impairment as well as recurrent risk in subsequent pregnancies.