Abstract:
:Late preterm infants (34-37 weeks postmenstrual age at birth) are intermediate between less mature preterm infants and infants born at 38 weeks or more in regard to autonomic brain stem maturation. Ventilatory responses to CO(2) in preterm infants born at 33 to 36 week are significantly higher than in infants born at 29 to 32 weeks both at 3 to 4 and 10 to 14 days postnatal age, but do not differ from full-term reference levels. The ventilatory response to hypoxia in preterm infants is biphasic; initial transient hyperventilation is followed by a return to baseline and then a decrease below baseline. In infants born at 32 to 37 weeks, parasympathetic maturation appears significantly less than in full-term infants based on diminished increases in high frequency heart rate variability in quiet sleep, suggesting that late preterm infants are still more susceptible to bradycardia than full-term infants. Both the presence and severity of apnea of prematurity progressively decrease the higher the postmenstrual age. Late preterm infants, however, are still at risk, with prevalence rates as high as 10% compared with about 60% in infants born at <1500 g. The incidence of apparent life-threatening events is more common in preterm infants (8-10%) than full-term infants (1% or less). In the Collaborative Home Infant Monitoring Evaluation studies, the frequency of conventional and extreme events in near term infants is intermediate between preterm infants <34 weeks at birth and full-term infants. The relative risk for at least one extreme event in late preterm infants is increased (5.6 and 7.6, respectively, P < 0.008) compared with full-term infants and remains higher until 43 weeks postmenstrual age. The rate for Sudden Infant Death Syndrome in preterm infants born at 33 to 36 weeks is 1.37/1000 live births compared with 0.69 in infants born full term. Affected late preterm infants die at a older mean postmenstrual age compared with less mature infants (48 and 46 weeks, respectively), but die at a younger postmenstrual age than full-term infants (53 weeks, P < 0.05).
journal_name
Semin Perinatoljournal_title
Seminars in perinatologyauthors
Hunt CEdoi
10.1053/j.semperi.2006.02.005subject
Has Abstractpub_date
2006-04-01 00:00:00pages
73-6issue
2eissn
0146-0005issn
1558-075Xpii
S0146-0005(06)00031-0journal_volume
30pub_type
杂志文章,评审abstract::The use of broad spectrum antimicrobials, the emergence of multiresistant organisms, and the hospital drug costs associated with antimicrobials have all driven the need for institutions to develop strategies to control the use of antimicrobials. Formulary restrictions, prior approval mechanisms, treatment guidelines, ...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/sper.2002.36271
更新日期:2002-10-01 00:00:00
abstract::The incidence of twins, triplets, and high-order multiples has increased dramatically in the last two decades secondary to greater reliance on fertility treatments and to delayed childbearing. Offspring of a multiple gestation are at increased risk for both chromosomal and structural abnormalities. Prenatal diagnosis ...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2005.08.005
更新日期:2005-10-01 00:00:00
abstract::Inhaled nitric oxide (iNO), a selective pulmonary vasodilator, is available for treatment of persistent pulmonary hypertension of the newborn in term and near-term neonates. iNO decreases pulmonary vascular resistance leading to diminished extrapulmonary shunt and also has a microselective effect which improves ventil...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/sper.2000.20085
更新日期:2000-12-01 00:00:00
abstract::The importance of omega-3 long chain polyunsaturated fatty acids in the perinatal period has been the focus of research for several decades. Infants born preterm miss out on the last trimester in utero transfer of omega-3 fatty acids and consequently have lower blood levels than infants born at term. Preterm infant fo...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2019.06.004
更新日期:2019-11-01 00:00:00
abstract::Traditional birth attendants (TBAs) provided delivery care throughout the world prior to the development of organized systems of medical care. In 2016, an estimated 22% of pregnant women delivered with a TBA, mostly in rural or remote areas that lacked formal health services. Still active in many regions of LMICs, the...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2019.03.013
更新日期:2019-08-01 00:00:00
abstract::Neuroblastoma is the most common malignant neoplasm occurring in the neonate and arguably the most variable in its presentation. This review examines differences in the tumor's clinical course in the context of known biologic determinants of behavior. Tumors that would go undetected except for prenatal ultrasonography...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(99)80035-4
更新日期:1999-08-01 00:00:00
abstract::Accurate assessment of fetal growth status requires the definition of an optimal standard, which represents the growth potential of the baby. Against this standard, individually 'customized' percentiles can be calculated. They improve the distinction between normal and abnormal, and help in our understanding and diagn...
journal_title:Seminars in perinatology
pub_type: 杂志文章
doi:10.1053/j.semperi.2003.12.002
更新日期:2004-02-01 00:00:00
abstract::The ichthyoses encompass a variety of genetic disorders marked by abnormal epidermal differentiation. The neonatal period is critical for patients with ichthyosis because of the risk for significant associated morbidity and mortality, with the majority of complications arising as a result of impaired barrier function....
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2012.11.001
更新日期:2013-02-01 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
pub_type: 杂志文章,评审
doi:
更新日期:1987-01-01 00:00:00
abstract::Effective training has been shown to improve perinatal care and outcome, decrease litigation claims and reduce midwifery sick leave. To be effective, training should be incentivised, in a realistic context, and delivered to inter-professional teams similar to those delivering actual care. Teamwork training is a useful...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2013.02.005
更新日期:2013-06-01 00:00:00
abstract::Infants meeting retinopathy of prematurity (ROP) screening guidelines based on birth weight and gestational age undergo serial examinations by ophthalmologists for detection and treatment. However, less than 10% require treatment, and less than half develop ROP. Slow postnatal weight gain is highly predictive of ROP, ...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2019.05.008
更新日期:2019-10-01 00:00:00
abstract::Long-term sequelae of preterm birth have been studied extensively up until the age of 5 to 8 years. However, the cognitive development of adolescents born preterm has received limited attention. The objective of this study is to determine school performance in adolescents born very preterm. We have followed up a cohor...
journal_title:Seminars in perinatology
pub_type: 杂志文章
doi:10.1053/j.semperi.2004.08.007
更新日期:2004-08-01 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
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2017.07.014
更新日期:2017-11-01 00:00:00
abstract::Concern over the influence of pregnancy-related alterations in hydration has prompted questions regarding the accuracy of using standard methods of determining body composition. We sought to investigate whether differences exist between body composition determined at 30 weeks and 39 weeks of gestation and postpartum, ...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(96)80027-9
更新日期:1996-08-01 00:00:00
abstract::Neonatal herpes simplex virus (HSV) infection is one of the life-threatening infections of newborns. It affects approximately 1,500 to 2,200 infants per year in the United States. Changes in the presentation of neonatal HSV infection over the past two decades include an increase in the frequency of skin, eye, and mout...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(98)80008-6
更新日期:1998-02-01 00:00:00
abstract::The medical literature demonstrates that inadequate hospital protocols or the lack of consistent protocols for diagnosis, management, consultation, and/or referral can lead to confusion and unnecessary variation in patient care. Incongruities in clinical settings have been repeatedly shown to compromise quality of pat...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2015.11.019
更新日期:2016-03-01 00:00:00
abstract::Understanding the role of ion channels in the generation of slow waves and action potentials in the myometrium is critical in designing strategies to regulate uterine contractile activity. The development of the patch clamp technique has allowed the identification of specific types of channels in the myometrium and pr...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(95)80045-x
更新日期:1995-02-01 00:00:00
abstract::The neurodevelopmental outcome of very low birth weight infants experiencing early-onset intraventricular hemorrhage (IVH) occurring within the first 6 postnatal hours was compared with that of their peers without early-onset IVH at 3 years corrected age. The 440 surviving preterm infants (birth weight 600 to 1,250 g)...
journal_title:Seminars in perinatology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0146-0005(99)80065-2
更新日期:1999-06-01 00:00:00
abstract::This review documents and assesses recent trends in sudden infant death syndrome. We review medical literature, Internet resources, and national governmental data. A striking reduction in SIDS incidence of more than 50% has been observed in various countries after interventions, particularly during the early 1990s, to...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/sper.2002.34774
更新日期:2002-08-01 00:00:00
abstract::Invasive candidiasis (IC) is a leading cause of morbidity and mortality in preterm infants. Even if successfully treated, IC can cause significant neurodevelopmental impairment. Preterm infants are at increased risk for hematogenous Candida meningoencephalitis owing to increased permeability of the blood-brain barrier...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2012.06.003
更新日期:2012-12-01 00:00:00
abstract::Traditionally, genetic testing has been too slow or perceived to be impractical to initial management of the critically ill neonate. Technological advances have led to the ability to sequence and interpret the entire genome of a neonate in as little as 26 h. As the cost and speed of testing decreases, the utility of w...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2015.09.009
更新日期:2015-12-01 00:00:00
abstract::Fetal and neonatal alloimmune thrombocytopenia is not a well-known disease, except among specialists in maternal-fetal medicine, neonatologists, and certain pediatricians (ie, hematologists). However, this is by far the most common cause of early severe thrombocytopenia in neonates and of intracranial hemorrhage in te...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2008.10.003
更新日期:2009-02-01 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
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(99)80051-2
更新日期:1999-04-01 00:00:00
abstract::The cause for most cases of cerebral palsy is unknown. There are however, risk factors that have been associated with this chronic neuromuscular disease. The objective of this article is to review the maternal and fetal conditions (other than asphyxia and infection) strongly associated with increased rate of cerebral ...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/sper.2000.7052
更新日期:2000-06-01 00:00:00
abstract::Nutrition plays a critical role in the prevention and management of bronchopulmonary dysplasia (BPD). Growth failure in infants with BPD is predominantly due to malnutrition. Malnutrition can worsen BPD by compromising lung growth. Feeding difficulties in these infants can further affect nutrition. Dexamethasone, used...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2006.05.007
更新日期:2006-08-01 00:00:00
abstract::This review evaluates and compares, by using the best available medical evidence, the risks and benefits of postnatal steroid use in very low birth weight infants. Systemic postnatal steroids are effective at reducing the risk of chronic lung disease in ventilated very low birth weight infants; they appear to be most ...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/sper.2001.29034
更新日期:2001-12-01 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
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(99)80023-8
更新日期:1999-12-01 00:00:00
abstract::While the cesarean delivery (CD) rates have increased worldwide, operative vaginal delivery (OVD) rates continue to decline, with the United States having some of the lower rates amongst developed countries. It is clear that the use of forceps or vacuum can safely assist in accomplishing a vaginal delivery and prevent...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2012.04.021
更新日期:2012-10-01 00:00:00
abstract::A large body of research indicates that children born very preterm are at increased risk for neurobehavioral impairments; however, research examining outcome for extremely preterm (EP) children is limited. This chapter will review the literature focusing on early development delay, general intellectual functioning, sp...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1053/j.semperi.2007.12.009
更新日期:2008-02-01 00:00:00
abstract::Use of immunosuppressants during pregnancy is indicated for anti-rejection therapy in transplantation patients and treatment of autoimmune diseases. Maternal side effects include nephrotoxocity and hepatotoxicity. All immunosuppressant drugs cross the placenta. Immunosuppressant use during the first trimester is not s...
journal_title:Seminars in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0146-0005(97)80057-2
更新日期:1997-04-01 00:00:00