dilatation

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dilatation

[‚dil·ə′tā·shən]
(physics)
The increase in volume per unit volume of any continuous substance, caused by deformation.
References in periodicals archive ?
As partograph used in the study group, progress of labour was considered satisfactory if the curve of cervical dilatation stayed on or to the left of alert line, drawn at the rate of 1 cm/hour from 4 cm to 10 cm.
An emergency cerclage procedure is applied more typically in the middle of the second trimester, when the cervix is significantly shortened, when there is cervical dilatation and when membranes are prolapsed into the vagina; therefore, it is an operation in which complications such as membrane rupture and chorioamnionitis are frequently seen (17).
Although, typical fern pattern confirms stage of estrus and is associated with higher conception rate, the pattern may not have any relationship of cervical dilatation. On microscopic observation, samples of cervical mucus carried exfoliated cell of intermediate, superficial intermediate and superficial cell types in both cows as well as buffaloes.
The following parameters were recorded in both the groups: 1) cervical dilatation time, 2) operation time, 3) intraoperative complications, 4) postoperative morbidity with respect to time required for hospitalization, ambulation time and postoperative pain, and 5) postoperative complications like cervical stenosis, cervical incompetence or remnant adhesions.
Paracervical block has been reported as an effective pain-reducing anaesthetic technique for endometrial sampling in most studies.8,24 The paracervical block aids in reducing pain from cervical dilatation and surgical intervention in the cervix, lower uterine segment, and upper vagina.
Moreover, there was no difference in requirement for further cervical dilatation (Table 3).
This quasi experimental research utilized the following instruments: a 3 x 2 foot mirror to provide visual biofeedback (treatment), a stopwatch to measure the length of time elapsed from full cervical dilatation and effacement to the delivery of baby, and a tally sheet for recording of data.
They suggest that it is not uncommon for there to be no perceivable change for more than two hours prior to 7 cm and that the rate of cervical dilatation was below 1 cm per hour.
In this study, two parturients receiving CIPCEA experienced breakthrough pain, which occurred about three hours after initiation of CSE, at 3 cm and 5 cm cervical dilatation respectively.
Accuracy and intraobserver variability of simulated cervical dilatation measurements.
-- Cervical dilatation at presentation and over the 6 hours following admission was highly predictive of preterm birth in women admitted with preterm labor, but obstetric history also contributed important information about which mothers were likely to deliver before 34 or 37 weeks' gestation, according to study findings presented in poster form at the annual meeting of the Society for Gynecologic Investigation.
Nulliparous women with singleton pregnancies at term, in cephalic presentation, and 2- to 6-cm cervical dilatation were recruited on admission to participating labor and delivery units.