Fetal Vascular Malperfusion Due To Long and Hypercoiled Umbilical Cords Resulting in Recurrent Second Trimester Pregnancy Loss: A Case Series and Literature Review.
Pediatr Dev Pathol
; 24(1): 12-18, 2021.
Article
en En
| MEDLINE
| ID: mdl-32986509
ABSTRACT
BACKGROUND:
Intrauterine fetal demise due to fetal vascular malperfusion in mid-gestation is a rare occurrence. Abnormally long and hypercoiled umbilical cords are associated with an increased risk of umbilical cord blood flow restriction, which in turn can result in adverse perinatal and maternal outcomes. The factors that regulate umbilical cord development, specifically umbilical cord length and coiling, are poorly understood.METHODS:
Maternal history, along with fetal and placental findings (post-mortem, pathological, and molecular), were reviewed for a series of 3 consecutive pregnancies that ended in second trimester intrauterine fetal demise.RESULTS:
All 3 umbilical cords were exceptionally long and hypercoiled, and all placentas showed evidence of high-grade fetal vascular malperfusion. At fetopsy, all 3 fetuses were developmentally normal for gestational age and lacked congenital anomalies. Maternal medical history and antenatal testing (including an extensive work-up for maternal hypercoagulability syndromes) were normal and/or noncontributory.CONCLUSION:
Although excessively long and hypercoiled cords are generally thought of as sporadic, nongenetic events, rare examples of recurrent intrauterine fetal demise secondary to such exist have been reported. This intrafamilial clustering of a rare event is suggestive that at least a subset of hypercoiled, long umbilical cords may have an underlying genetic etiology.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Placenta
/
Cordón Umbilical
/
Muerte Fetal
/
Feto
Límite:
Adult
/
Female
/
Humans
/
Pregnancy
Idioma:
En
Revista:
Pediatr Dev Pathol
Asunto de la revista:
PATOLOGIA
/
PEDIATRIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Canadá