The Hayman suture4 was proposed with two important modifications: The suture is placed through-and-through the lower uterine segment
with a closed hysterotomy, and the suture can be fixed to the uterine fundus to avoid slippage.
Cesarean scar pregnancy (CSP) is an uncommon form of ectopic pregnancy resulting from implantation of a blastocyst within myometrial scar tissue in the anterior lower uterine segment
(LUS), at the site of prior Cesarean section.
One doctor chooses to block the abdominal aorta before the fetus is delivered, make a lower uterine segment
transverse incision, and use the placenta hole to deliver the fetus.
1.: Magnetic resonance imaging with contrast filled through the bladder showing contrast in the lower uterine segment
at the level of the previous Cesarean scar.
Ultrasonographic measurement of lower uterine segment
to assess risk of defects of scarred uterus.
The risk increased from 0.26% with an un scarred uterus to 10% for women with four or more previous caesarean section.16 This was also found in the study of hershkowitz et al.17 They had suggested that a single caesarean section is enough to interfere with the normal physiological stretching of lower uterine segment
in subsequent pregnancies, thus preventing normal migration of placenta away to the upper uterine segment
with results in increased incidence of placenta praevia with scarred uterus.
According to some authors' opinion during labor in vertical position the pressure of fetal bladder and the presenting part of foetus onto the receptor device of lower uterine segment
during uterine activity result in effective opening of womb mouth which is accompanied by the shortening of delivery duration.
The balloon was deflated just before the end of the procedure and additional saline instilled while the catheter was slowly withdrawn to enable a full evaluation of the lower uterine segment
and endocervical canal.
Ultrasonography showed a heterogenous, predominantly hyperechoic bulky cervix with 4.6 x 4.6 cms round to oval mass also involving lower uterine segment
and upper vaginal wall.
There was bleeding from the left lower uterine segment
, which was ligated and sutured.
"The ones that were confined to the lower uterine segment
and mid-body were much harder to detect."
Washington, Jan 31 (ANI): Researchers have revealed that by measuring the lower uterine segment
(LUS) thickness, doctors can predict uterine scar defects in women who had previous caesarean deliveries, and anticipate which patients are at risk for subsequent uterine rupture if they have a trial of labour.