Search results
Results From The WOW.Com Content Network
Presentation of twins in Der Rosengarten ("The Rose Garden"), a German standard medical text for midwives published in 1513. In obstetrics, the presentation of a fetus about to be born specifies which anatomical part of the fetus is leading, that is, is closest to the pelvic inlet of the birth canal.
In obstetrics, a cephalic presentation or head presentation or head-first presentation is a situation at childbirth where the fetus is in a longitudinal lie and the head enters the pelvis first; the most common form of cephalic presentation is the vertex presentation, where the occiput is the leading part (the part that first enters the birth canal). [1]
In obstetrics, position is the orientation of the fetus in the womb, identified by the location of the presenting part of the fetus relative to the pelvis of the mother. . Conventionally, it is the position assumed by the fetus before the process of birth, as the fetus assumes various positions and postures during the course of chil
Pregnancy is the time during which one or more offspring develops inside a woman's uterus (womb). [4] [13] A multiple pregnancy involves more than one offspring, such as with twins. [14] Pregnancy usually occurs by sexual intercourse, but can also occur through assisted reproductive technology procedures. [6]
With regard to the fetal presentation during pregnancy, three periods have been distinguished. [5]During the first period, which lasts until the 24th gestational week, the incidence of a longitudinal lie increases, with equal proportions of breech or cephalic presentations from this lie.
Shoulder presentations are uncommon (about 0.5% of births) [1] since, usually, toward the end of gestation, either the head or the buttocks start to enter the upper part of the pelvis, anchoring the fetus in a longitudinal lie. It is not known in all cases of shoulder presentation why the longitudinal line is not reached, but possible causes ...
Other risk factors include a multiple pregnancy, more than one previous delivery, and too much amniotic fluid. [ 2 ] [ 3 ] Whether medical rupture of the amniotic sac is a risk is controversial. [ 2 ] [ 3 ] The diagnosis should be suspected if there is a sudden decrease in the baby's heart rate during labor.
Managing Complications in Pregnancy and Childbirth, A guide for midwives and doctors. World Health Organization's. Archived from the original on 2002-08-09. Siciliano G, Marchiafava G (1952). "[Asynclitic ventral shoulder presentation; two cases with deflection and epidural hemorrhage]". Monitore Ostetrico-Ginecologico (in Italian). 23 (4): 233 ...