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Trimester Pregnancy (trimester + pregnancy)

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Medical Sciences100%

Terms modified by Trimester Pregnancy

  • trimester pregnancy termination
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    Selected Abstracts

    Fetal gender determination in early first trimester pregnancies of rhesus monkeys (Macaca mulatta) by fluorescent PCR analysis of maternal serum

    JOURNAL OF MEDICAL PRIMATOLOGY, Issue 6 2003
    Daniel F. Jimenez
    Abstract:, Non-human primate fetal gender determination can be a powerful tool for research study design and colony management purposes. The recent discovery of the presence of fetal DNA in maternal serum has offered a new non-invasive approach for identification of fetal gender. We present a rapid and simple method for the sexing of developing rhesus monkeys in the first trimester by polymerase chain reaction (PCR) analysis of maternal serum. Serum samples were obtained from 72 gravid rhesus monkeys during 20,32 days of gestation (term 165 ± 10 days). Fetal gender and the quantity of circulating fetal DNA were determined by real-time PCR analysis of the rhesus Y-chromosomal DNA sequences. The sensitivity for identifying a male fetus was 100% by 30 days gestation, and no false-positive results were observed. This study demonstrates that fetal gender can be reliably determined in the early first trimester from maternal serum samples, a non-invasive method for routine gender screening. [source]

    Spontaneous uterine rupture during a second trimester pregnancy with a history of laparoscopic myomectomy

    JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 6 2009
    Gokhan Goynumer
    Abstract Uterine rupture is one of the most feared obstetric complications, carrying an increased risk of maternal and perinatal morbidity and mortality. Here, we present a case of spontaneous uterine rupture during the first half of pregnancy. The patient did not report any recent trauma, however she had a history of laparoscopic myomectomy conducted three years earlier. The uterine rupture was 6,7 cm in length, located at the fundal level and was thought to originate from the previous myomectomy scar. In this report, we discuss the importance of choosing the right surgical technique and suturing method in patients undergoing myomectomy who desire to conceive in the future, and how obscure the findings of uterine rupture during pregnancy can be. [source]

    Collagenase-3 (MMP-13) in Fetal Membranes and Amniotic Fluid During Pregnancy,

    AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY, Issue 2 2003
    Stephen J. Fortunato
    OBJECTIVE:, To examine the expression, site of production and a role of collagenase-3 in human fetal membranes and amniotic fluid (AF). METHODS:, Amniochorion collected at the time of elective repeat cesareans prior to labor from normal term gestation, were placed in an organ explant system for 72 hr. The AF was collected from the following groups of women: women at term; women at third trimester pregnancy: women at mid-trimester pregnancy. Women with premature rupture of the membranes (PROM) with or without pre-term labor and infection delivered by cesareans before term; women with pre-term labor and no rupture of membranes and delivered by cesareans before term; The mRNA expression of collagenase-3 was studied by reverse transcriptase,polymerase chain reaction (RT,PCR) and protein concentrations in the AF were assayed by enzyme-linked immunosorbent assay (ELISA). Site of collagenase-3 production was documented by immunohistochemistry. Statistical comparisons were made using ANOVA. All statistical hypotheses were adjusted for multiple comparisons using the Scheffe method of adjustment. RESULTS:, Amniochorion at term expressed collagenase-3 mRNA. Immunohistochemistry localized collagenase-3 in both amnion and chorion. Collagenase-3 was seen in AF from all gestational age groups with lowest levels at mid-trimester [167.8 pg/mL] and highest during term labor (323.92 pg/mL) with no statistically significant difference between term and third trimester (310.11 pg/mL). AF levels of collagenase-3 were significantly higher in women with pre-term labor (370.02 pg/mL; Padj = 0.046) or pre-term labor and infection (628.73 pg/mL; Padj = 0.002) compared with PROM with pre-term labor and infection (87.19 pg/mL). CONCLUSION:, Collagenase-3 mRNA is constitutively expressed and produced in amniochorion. It is a normal physiologic constituent of AF. PROM is not associated with an increase in the AF collagenase-3. [source]

    Is it necessary to catheterise the bladder routinely before gynaecological laparoscopic surgery?

    AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 5 2005
    Kwok Keung TANG
    Abstract Background:, Catheterisation of the bladder was routinely performed before gynaecological laparoscopy, but such an established practice is not evidence based and may lead to an increase in postoperative urinary symptoms and urinary tract infection. Aims:, To compare routine urethral catheterisation and non-catheterisation before laparoscopic surgery with respect to bladder injury, postoperative urinary symptoms and urinary tract infection (UTI). Methods:, This was a prospective, double blind randomised study. All women undergoing gynaecological laparoscopy, both elective and emergency, were invited to participate in the study. Cases involving bladder dissection, second trimester pregnancy and those who could not void preoperatively were excluded. Patients were randomly allocated to catheterise group and non-catheterise group. Requirement of catheterisation in the non-catheterise group, bladder injury, postoperative catheterisation, urinary symptoms and UTI were studied. Results:, Two hundrend and seventy-nine women were recruited of whom 262 were suitable for final analysis. Each group contained 131 cases. Patient characteristics and operative parameters were comparable in both groups. There was no bladder injury. Four percent of the women in the non-catheterise group needed catheterisation and catheterisation was significantly associated with surgery longer than 90 min (P < 0.001). Postoperative UTI was insignificantly reduced in the non-catheterised group. When postoperative urinary symptoms and urinary tract infections were studied as a composite outcome, they were statistically significantly reduced in the non-catheterise group (P = 0.017). Conclusions:, The policy of non-catheterisation before gynaecological laparoscopic surgery is safe and feasible. Although the reduction in UTI is insignificant, the overall postoperative urinary problems (urinary symptoms or UTI) are reduced significantly. [source]