Publications by authors named "Alison Wortman"

Objective: To evaluate the efficacy of incisional negative pressure wound therapy in the prevention of postoperative wound morbidity in women with class III obesity undergoing cesarean delivery.

Methods: In an open label randomized controlled trial, women admitted for delivery with class III obesity (body mass index 40 or higher) measured within 2 weeks of admission for delivery were offered participation in the study. They were consented either in the outpatient maternal-fetal medicine specialty clinic, during admission to labor and delivery and before a decision to perform cesarean delivery, or in the preoperative area of the hospital before scheduled cesarean delivery.

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 To evaluate the relationship between surgical outcomes and ultrasound measurement of placental extension beyond the cervical os in women with placenta previa.  This is a retrospective cohort study of singleton pregnancies with placenta previa undergoing third-trimester ultrasound and delivering at our institution from 2002 through 2011. For study purposes, an investigator measured placental extension, defined as the placental distance from the internal os across the placenta continuing out to the lowest placental edge.

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Dysregulation of human trophoblast invasion and differentiation can result in preeclampsia (PE), a hypertensive disorder of pregnancy with significant morbidity and mortality for mother and offspring. miRNA microarray analysis of RNA from human cytotrophoblasts (CytT), before and after differentiation to syncytiotrophoblast (SynT) in primary culture, revealed that members of miR-515 family-including miR-515-5p, miR-519e-5p, miR-519c-3p, and miR-518f, belonging to the primate- and placenta-specific chromosome 19 miRNA cluster ()-were significantly down-regulated upon human SynT differentiation. The proto-oncogene, c-MYC, which declines during SynT differentiation, interacted with E-boxes upstream of and , encoding these mRNAs, to enhance their expression.

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A 38-year-old gravida 7 para 5 Hispanic woman at 36 weeks and 4 days gestation presented with a postpartum headache following vaginal delivery complicated by an unintentional dural puncture for epidural analgesia. Due to the positional nature of the headache and its frontal and occipital origin, a postdural puncture headache was diagnosed. After failure of conservative treatment, an epidural blood patch was used, which offered immediate relief.

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Objective: To evaluate pregnancy outcomes with low-lying placenta according to the distance from placenta to cervical os.

Methods: Retrospective cohort study of singleton pregnancies with low-lying placenta (placenta edge within 20 mm of internal os on transvaginal sonography) delivered at our hospital from 2002 to 2012, excluding suspected placenta accreta and vasa previa. Vaginal delivery was offered in the absence of another indication for cesarean.

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Objective: We have previously shown a decrease in the overall stillbirth rate at our institution in women receiving the seasonal influenza vaccine during pregnancy. The goal of this study was to ascertain factors associated with this decrease.

Study Design: This was a retrospective cohort study examining the stillbirth rate, etiology, autopsy findings, and placental pathology in pregnant women receiving the seasonal trivalent inactive influenza vaccine during five influenza seasons between 2003 and 2008.

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Placenta accreta is an abnormal adherence of the placenta to the uterine wall that can lead to significant maternal morbidity and mortality. The incidence of placenta accreta has increased 13-fold since the early 1900s and directly correlates with the increasing cesarean delivery rate. The prenatal diagnosis of placenta accreta by ultrasound along with risk factors including placenta previa and prior cesarean delivery can aid in delivery planning and improved outcomes.

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Intrapartum hemorrhage.

Obstet Gynecol Clin North Am

March 2013

Intrapartum hemorrhage is a serious and sometimes life-threatening event. Several etiologies are known and include placental abruption, uterine atony, placenta accreta, and genital tract lacerations. Prompt recognition of blood loss, identification of the source of the hemorrhage, volume resuscitation, including red blood cells and blood products when required, will result in excellent maternal outcomes.

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Background: Selective embolization in pregnancy for treatment of renal hemorrhage has been reported infrequently in the literature; the possibility of minimizing radiation dose to the fetus by using dose-sparing fluoroscopy techniques is not commonly appreciated by the obstetric community.

Case: We describe performing partial renal embolization with the use of all available radiation dose-sparing techniques. The patient had no further complications, and she and her newborn were well postpartum.

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