Hemorrhage of Late Pregnancy and the Puerperium of Placental Origin

Castelazo-Ayala, L; Samuel, Karchmer K.; Manuel, M.; Eduardo, Ontiveros C.

doi:10.1002/j.1879-3479.1970.tb00159.x

Cited by 2 publications

(3 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several authors (2,3,7,12,17) have found an increased incidence of antepartum haemorrhage, in contrast to the present study. An explanation of this discrepancy can be that the mothers in the present investigation were not questioned as to episodes of bleeding by the author, but by others, and that they had no knowledge of a possible circumvallation.…”

Section: Discussioncontrasting

confidence: 95%

“…The two theories that have been most widely accepted are those of Torpin (14), which proposes a deep implantation in the decidua, after which the placenta "herniates" into the decidua capsularis; and that of Pinkerton (8), which suggests repeated haemorrhages along the edges. A relationship between circumvallation and antepartum haemorrhage has been found by several investigators (2,3,7,12,17). Pinkerton (8) and Fox & Sen (4) are the only authors who do not find this relationship.…”

mentioning

confidence: 66%

“…The correlation between extrachorial placenta and low birth weight and low gestational age has been evaluated in several studies (3,4,8,9,12,17), without any agreement being reached.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Circumvallate Placenta and Intrauterine Growth Retardation

Rolschau

1978

Acta Obstet Gynecol Scand

View full text Add to dashboard Cite

A study has been made of a prospectively selected material of circumvallate placentae; the latter being defined as an elevated edge of more than 50% of the circumference. The material consists of 447 placentae from liveborn singleton infants, where 287 were from exemplary pregnancies, and 160 from births with a gestational age (GA) of less than 266 days and/or a birth weight of less than 2 750 g. The material was prospectively randomized. It was divided into clinical groups according to the GA and under-weight. Nineteen circumvallate placentae were found. Among these were more multigravidae and more with pre-gestational menstrual irregularity than expected. The number of antepartum haemorrhages was as expected. There were more premature infants, premature under-weight infants and under- weight infants than expected. Nine of the 20 premature under-weight infants in the material had circumvallate placenta. In relation to a previously published basic material, it was found that the birth weight, and placental content of RNA and DNA were significantly reduced. It is concluded that placentae with more than 50% circumvallation are associated with prematurity and under-weight, as well as a placenta with fewer cells than normal. The genesis of the anomaly is discussed.

show abstract

Section: Discussioncontrasting

confidence: 95%

mentioning

confidence: 66%

See 1 more Smart Citation

Circumvallate Placenta and Intrauterine Growth Retardation

Rolschau

1978

Acta Obstet Gynecol Scand

View full text Add to dashboard Cite

show abstract

Encircling Suture of the Cervix in Placenta Praevia: Ten Years Experience

Friesen

1972

Acta Obstet Gynecol Scand

View full text Add to dashboard Cite

Over a ten-year period, placenta praevia occurred in 41 instances among 12485 deliveries (ratio 1 : 305). In 19 of these, cervical suture was undertaken in order to prevent severe bleeding while prolonging pregnancy. Infants weighing 2 500 g or less were delivered in seven of the 41 cases (17.1%). Of 43 infants, two, of which one was a twin, failed to survive (4.7%). Calculated in terms of single pregnancies, the figures correct to 12.8 and 2.6%, respectively. These figures are lower than any previously published.

show abstract

Hemorrhage of Late Pregnancy and the Puerperium of Placental Origin

Cited by 2 publications

References 51 publications

Circumvallate Placenta and Intrauterine Growth Retardation

Circumvallate Placenta and Intrauterine Growth Retardation

Encircling Suture of the Cervix in Placenta Praevia: Ten Years Experience

Contact Info

Product

Resources

About