Publications by authors named "James W Van Hook"

As the rate of cesarean sections continues to rapidly rise, knowledge of diagnosis and management of cesarean scar pregnancies (CSPs) is becoming increasingly more relevant. CSPs rest on the continuum of placental abnormalities which include morbidly adherent placenta (accreta, increta, and percreta). A CSP poses a clinical challenge which may have significant fetal and maternal morbidity.

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Objective: We aim to quantify the impact of obesity on maternal intensive care unit (ICU) admission.

Materials And Methods: This is a population-based, retrospective cohort study of Ohio live births from 2006 to 2012. The primary outcome was maternal ICU admission.

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Calcium channel blockers are commonly used tocolytic agents on Labor and Delivery units worldwide as part of the management of preterm labor. Despite their overall reassuring safety profile, rare cardiovascular complications have been reported. In this report, we describe the case of threatened preterm labor managed with nifedipine with subsequent development of atrial fibrillation.

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Acute kidney injury complicates the care of a relatively small number of pregnant and postpartum women. Several pregnancy-related disorders such as preeclampsia and thrombotic microangiopathies may produce acute kidney injury. Prerenal azotemia is another common cause of acute kidney injury in pregnancy.

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Objective: When uterotonics fail to cause sustained uterine contractions and satisfactory control of hemorrhage after delivery, tamponade of the uterus can be effective in decreasing hemorrhage secondary to uterine atony.

Study Design: These data are from a postmarketing surveillance study of a novel dual-balloon catheter tamponade device, the Belfort-Dildy Obstetrical Tamponade System (ebb).

Results: A total of 57 women were enrolled: 55 women had the diagnosis of postpartum hemorrhage, and 51 women had uterine balloon placement within the uterine cavity.

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Objectives: To identify correlates of a prolonged length of stay (PLOS) in women hospitalized for preeclampsia/eclampsia in Texas, USA.

Methods: Statewide hospital data were obtained, and the records of women who were discharged in 2004 and/or 2005 with a principal discharge diagnosis of preeclampsia or eclampsia were extracted using ICD-9-CM codes. PLOS was defined as a stay greater than 5 days.

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Objective: To describe the epidemiology, pathophysiology, presentation, treatment, and prognosis of Bell's palsy (BP) in pregnancy.

Results: The incidence of BP in pregnant women is not significantly greater than expected compared to all women of childbearing age. There is a high incidence of cases in the third trimester and corresponding low incidence during early pregnancy.

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Objective: We investigated whether homeostatic indices of insulin sensitivity might suitably screen for gestational diabetes mellitus.

Study Design: One hundred twenty-three pregnant women who were between 24 and 28 weeks of gestation completed a 3-hour 100-g oral glucose challenge test and fasting insulin level in a nested case-control study design. Insulin sensitivity indices were calculated and tested for their ability to detect gestational diabetes mellitus.

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Background: Treatment of a major burn injury during pregnancy must incorporate modifications in management resulting from gestational physiologic changes.

Case: A 25-year-old woman, at 34 weeks of gestation, sustained a major burn injury at home. She required ventilatory support, invasive hemodynamic monitoring, and massive fluid resuscitation.

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Background: Most biological samples are cell mixtures. Some basic questions are still unanswered about analyzing these heterogeneous samples using gene expression microarray technology (MAT). How meaningful is a cell mixture's overall gene expression profile (GEP)? Is it necessary to purify the cells of interest before microarray analysis, and how much purity is needed? How much does the purification itself distort the GEP, and how well can the GEP of a small cell subset be recovered?

Methods: Model cell mixtures with different cell ratios were analyzed by both spotted and Affymetrix MAT.

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Objective: To identify the proportion of major organ system injury in cases of acute intrapartum asphyxia that result in neonatal encephalopathy.

Methods: A prospectively maintained database was cross-referenced using medical record coding to identify diagnoses of acute intrapartum asphyxia, acute birth asphyxia, or neonatal encephalopathy over a 6-year period. An acute intrapartum asphyxial antecedent was validated with emphasis on excluding long-standing or chronic conditions where injury likely occurred before presentation.

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