What we have learned about the design of randomized trials in pregnancy.

abstract：:Poor access to contraception can lead to several undesired health outcomes, including high rates of unintended pregnancy, high rates of teen pregnancy, spontaneous preterm delivery, preeclampsia and maternal death. Properly addressing these public health issues often require a coordinated response at the state governm...

journal_title：Seminars in perinatology

authors： Jackson AD,Sherpa ML

更新日期：2020-08-01 00:00:00

abstract：:Unpublished results can bias biomedical literature, favoring positive over negative findings, primary over secondary analyses, and can lead to duplicate studies that unnecessarily endanger subjects and waste resources. The Neonatal Research Network's (NRN) publication policies for approving, reviewing, and tracking ab...

journal_title：Seminars in perinatology

authors： Archer SW,Carlo WA,Truog WE,Stevenson DK,Van Meurs KP,Sánchez PJ,Das A,Devaskar U,Nelin LD,Petrie Huitema CM,Crawford MM,Higgins RD,Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research

更新日期：2016-10-01 00:00:00

abstract：:Following dramatic reductions between the early 1900s and the early 1980s, the maternal mortality ratio began to rise, reaching a peak of almost 17 maternal deaths per 100,000 live births. Although this number pales in comparison with that found in sub-Saharan Africa and India, the troubling rise in the United States ...

journal_title：Seminars in perinatology

authors： King JC

更新日期：2012-02-01 00:00:00

abstract：:The outcome literature on low birthweight (LBW) premature children indicates that they are at risk for a variety of neurodevelopmental impairments throughout childhood. To prevent such disabilities, numerous interventions have been initiated with LBW children. Nineteen intervention programs designed for LBW preterms t...

journal_title：Seminars in perinatology

authors： McCarton CM,Wallace IF,Bennett FC

更新日期：1995-08-01 00:00:00

abstract：:With 50-90% of pregnant women experiencing nausea and vomiting of pregnancy (NVP), the burden of illness can become quite significant if symptoms are under-treated and/or under-diagnosed, thus allowing for progression of the disease. The majority of these women will necessitate at least one visit with a provider to sp...

journal_title：Seminars in perinatology

authors： Clark SM,Dutta E,Hankins GD

更新日期：2014-12-01 00:00:00

abstract：:Clinically silent upper genital tract microbial infections have been strongly associated with spontaneous preterm delivery, especially prior to 32 weeks gestational age. This condition represents a potentially preventable or reversible cause of preterm birth using safe, readily available, and inexpensive antibiotics. ...

journal_title：Seminars in perinatology

authors： Andrews WW,Goldenberg RL,National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network.

更新日期：2003-06-01 00:00:00

abstract：:Cesarean birth (CB) rates are rising, globally. The global burden of CB is having a mixed effect on pregnancy outcomes and requires significant clinical and economic resources. The context of CB care in low- and middle-income countries is further complicated by barriers to facility-based care itself, followed by issue...

journal_title：Seminars in perinatology

authors： Harrison MS,Goldenberg RL

更新日期：2019-08-01 00:00:00

abstract：:Preterm births account for a substantial portion of infant mortality, the major difference in mortality between African-American and white births in the United States, and the key reason that US infant mortality exceeds that of other developed nations. Although preterm birth rates are higher in the African-American co...

journal_title：Seminars in perinatology

authors： Hogue CJ,Hargraves MA

更新日期：1995-08-01 00:00:00

abstract：:Maternal obesity, excessive gestational weight gain, and preexisting diabetes are known risk factors for increased maternal and neonatal morbidity. These conditions are more prevalent in certain racial and ethnic minorities. Identification and acknowledgement of racial and ethnic inequalities related to maternal metab...

journal_title：Seminars in perinatology

authors： Teefey CP,Durnwald CP

更新日期：2017-08-01 00:00:00

abstract：:Nitric oxide (NO) is intimately involved in vascular homeostasis through its antiplatelet, antiproliferative, and vasodilating actions. Because of these beneficial properties, methods of harnessing NO for the prevention of vascular injury responses, such as intimal hyperplasia, are being explored. One such method invo...

journal_title：Seminars in perinatology

authors： Kibbe MR,Tzeng E

更新日期：2000-02-01 00:00:00

abstract：:For many years, all of the described cases of monoamine neurotransmitter deficiency were associated with hyperphenylalaninemia that was generally detected at neonatal screening. It is now clear that inherited deficiency of monoamines often occurs in the absence of hyperphenylalaninemia and that the normal battery of s...

journal_title：Seminars in perinatology

authors： Hyland K

更新日期：1999-04-01 00:00:00

abstract：:The future health of infants and children is dependent on the performance of clinical research in which infants participate. Achieving a proper balance between this social good and the obligation to protect infants who participate in research is a significant challenge. As investigators design and implement research p...

journal_title：Seminars in perinatology

authors： Diekema DS

更新日期：2009-12-01 00:00:00

abstract：:Abruptio placentae is an important cause of vaginal bleeding in the latter half of pregnancy. The key factor in the pathophysiology is hemorrhage at the decidual-placental interface. Small episodes may escape clinical detection, but severe grades impact significantly on fetal and maternal morbidity and mortality, with...

journal_title：Seminars in perinatology

authors： Hall DR

更新日期：2009-06-01 00:00:00

abstract：:The development of ultrafast magnetic resonance imaging scanners and sequences provides a new tool for the diagnosis of fetal anomalies. Magnetic resonance imaging is a valuable adjunct to prenatal ultrasound especially for the evaluation of suspected fetal brain anomalies, chest masses, abdominal masses, and renal di...

journal_title：Seminars in perinatology

authors： Hubbard AM,Harty MP,States LJ

更新日期：1999-12-01 00:00:00

abstract：:Infant mortality, fetal mortality, and preterm birth all represent important health challenges that have shown little recent improvement. The rate of decrease in both fetal and infant mortality has slowed in recent years, with little decrease since 2000 for infant mortality, and no significant decrease from 2003 to 20...

journal_title：Seminars in perinatology

authors： MacDorman MF

更新日期：2011-08-01 00:00:00

abstract：:Among risk factors for shoulder dystocia, a prior history of delivery complicated by shoulder dystocia is the single greatest risk factor for shoulder dystocia occurrence, with odds ratios 7 to 10 times that of the general population. Recurrence rates have been reported to be as high as 16%. Whereas prevention of shou...

journal_title：Seminars in perinatology

authors： Gurewitsch ED,Johnson TL,Allen RH

更新日期：2007-06-01 00:00:00

abstract：:Approximately one in ten (approximately 500,000) pregnancies results in preterm birth (PTB) annually in the United States. Although we have seen a slight decrease in the U.S. PTB rate between 2007 and 2014, data from 2014 to 2015 shows the preterm birth rate has slightly increased. It is even more intriguing to note t...

journal_title：Seminars in perinatology

authors： Vink J,Mourad M

更新日期：2017-11-01 00:00:00

abstract：:Many infants with CDH can be managed with conventional mechanical ventilation and pharmacotherapy. However, some infants will require levels of ventilator support that are not compatible with survival. In these circumstances, extracorporeal membrane oxygenation (ECMO) has been used with varying results. The indication...

journal_title：Seminars in perinatology

authors： Khan AM,Lally KP

更新日期：2005-04-01 00:00:00

abstract：:Early pregnancy loss is the most common complication in pregnancy. Management options for miscarriage include expectant management, medical intervention, or surgical aspiration. Non-surgical and surgical management are all safe and acceptable options for medically uncomplicated patients. Patient and provider preferenc...

journal_title：Seminars in perinatology

authors： Shorter JM,Atrio JM,Schreiber CA

更新日期：2019-03-01 00:00:00

abstract：:Prostaglandins PGE2, PGD2, PGI2, and PGF2 alpha, as well as thromboxanes and leukotrienes, are synthesized by the fetal and neonatal kidney. The major prostaglandin, PGE2, PGD2, and PGI2, increase RBF, free water clearance, urine flow, and natriuresis. Alterations in the synthetic and catabolic activity of renal prost...

journal_title：Seminars in perinatology

authors： Gleason CA

更新日期：1987-01-01 00:00:00

abstract：:Before sounds originating outside the abdomen of pregnant women can reach the inner ear of the fetus, they must first pass through the tissues and fluids surrounding the fetal head. Low-frequency sound energy easily penetrates to the fetal head, less than 5 dB attenuation for frequencies below 500 Hz, whereas higher f...

journal_title：Seminars in perinatology

authors： Gerhardt KJ,Abrams RM

更新日期：1996-02-01 00:00:00

abstract：:Despite major advances in neonatal care, the burden of preterm birth remains high. This is not unexpected since strategies to identify and treat risk factors in early pregnancy have not been very effective in reducing the preterm birth rate. Initial studies suggested a potential benefit for 17-alpha-hydroxyprogesteron...

journal_title：Seminars in perinatology

authors： Caritis SN,Feghali MN,Grobman WA,Rouse DJ,Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal–Fetal Medicine Units Network.

更新日期：2016-08-01 00:00:00

abstract：:Neonatal erythropoiesis is limited by a relatively inadequate production of erythropoietin. This is likely the result of dependence on the hepatic production of erythropoietin and an incomplete switchover to renal production. The present model of neonatal erythropoiesis suggests that the use of exogenous erythropoieti...

journal_title：Seminars in perinatology

authors： Doyle JJ

更新日期：1997-02-01 00:00:00

abstract：:Supplemental oxygen is often used as a life-saving therapy in the treatment of preterm infants. However, its protracted use can lead to the development of bronchopulmonary dysplasia (BPD), and more recently, has been associated with adversely affecting the general health of children and adolescents who were born prete...

journal_title：Seminars in perinatology

authors： Buczynski BW,Maduekwe ET,O'Reilly MA

更新日期：2013-04-01 00:00:00

abstract：:STDs can be one of the most common antepartum complications in high-risk gravidas. Screening for gonorrhea, syphilis, HPV, and possibly hepatitis B and chlamydial infection, should be considered in most, if not all, pregnant women. Familiarity with the common clinical presentations and treatment of bacterial STDs will...

journal_title：Seminars in perinatology

authors： Wendel GD Jr

更新日期：1990-04-01 00:00:00

abstract：:We have hypothesized that an alteration in the production of endothelium-dependent factors by sex hormones is a potential unifying mechanism for both the decreased arterial contractility and the redistribution of cardiac output characteristic of normal pregnancy. Thus, the effect of pregnancy/ estradiol on any one vas...

journal_title：Seminars in perinatology

authors： Weiner CP,Thompson LP

更新日期：1997-10-01 00:00:00

abstract：:Thyroid hormone plays an important role in regulating cardiovascular function during the transition to extrauterine physiology. Multiple mechanisms participate, ranging from transcriptional to more immediate nongenomic modes of regulation. ...

journal_title：Seminars in perinatology

authors： Portman MA

更新日期：2008-12-01 00:00:00

abstract：BACKGROUND:Pulmonary inflammation, increased production of the inflammatory cytokine interleukin-1beta (IL-1beta), and vitamin A deficiency are risk factors for the development of bronchopulmonary dysplasia (BPD) in premature infants. To determine the mechanisms by which IL-1beta influences lung development, we have ge...

journal_title：Seminars in perinatology

authors： Bry K,Lappalainen U

更新日期：2006-06-01 00:00:00

abstract：:Sudden unexpected changes in the life of a family create many different emotions in various family members. The death of a young woman during or after her pregnancy is especially difficult because of the strain it places on family dynamics. One of the consequences is that there is, commonly, a newborn, and perhaps oth...

journal_title：Seminars in perinatology

authors： Elliott JP

更新日期：2012-02-01 00:00:00

abstract：:Sleep-disordered breathing occurs in 0.6-15% of reproductive age women. This condition is associated with an increased lifetime risk of cardiovascular disease, cardiovascular mortality, and all-cause mortality. A substantial body of evidence demonstrated increased perinatal morbidity among pregnancies affected by SDB ...

journal_title：Seminars in perinatology

authors： Cain MA,Ricciuti J,Louis JM

更新日期：2015-06-01 00:00:00