ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Labor induction has become commonplace in modern obstetrics. The increasing rate of labor induction has probably played a role in the increased rate of cesarean delivery observed in the United States during the past few decades. Clearly, the favorability of the cervix has a substantial impact on the potential success of any labor induction. Induction in the setting of an unfavorable cervix can result in prolonged induction, prolonged hospitalization, failed induction, and an increased cesarean delivery rate. In this modern era of healthcare reform and cost containment, the identification of therapeutic strategies to enhance the success and cost-effectiveness of labor induction are of great interest. Ongoing research is needed to advance our knowledge of the mechanisms of parturition and cervical ripening in order to direct interventions for labor induction more effectively.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

The practice of obstetric vacuum extraction is controversial. This article discusses several issues concerning vacuum extraction including maternal and fetal injury risks, failure rates, indications and technique. Recently published articles on these topics are presented and summarized. Throughout this review, vacuum extraction is evaluated against its principal alternatives, forceps and cesarean delivery.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Cesarean rate as a clinical indicator for health care quality continues to be a focus of discussion and research among clinicians and health policy advocates. Over the review period, there were several studies regarding statistical strategies for monitoring and reporting cesarean rates, clinical and nonclinical risk factors for cesarean, and clinical interventions related to the management of labor that may help to decrease the likelihood of cesarean delivery. Future research should focus on developing and refining the statistical strategies for monitoring and adjusting cesarean rates to allow for meaningful comparisons.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Vaginal birth has been recognized as being potentially traumatic to the pelvic floor. It is important that contributory obstetric factors are identified and their occurrence minimized. Women who have sustained significant anal sphincter injury are at greater risk of further damage and faecal incontinence with subsequent deliveries. This review reports on recent developments in this field, and examines ways in which morbidity might be reduced.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Multifetal pregnancies have increased dramatically since the introduction and improvement in assisted reproductive techniques. Multifetal pregnancy reduction (MPR) is a technique developed over the past 15 years to deal with the sequelae of higher order multiple gestations resulting from infertility treatment. With increasing operator experience, loss rates for patients undergoing MPR have declined dramatically. The present review addresses recent data on the outcomes of patients undergoing MPR, as well as recent information on the natural history of higher-order multiple gestations in individuals not undergoing MPR. New developments in this area such as the use of chorionic villus sampling before MPR, as well as MPR to a single fetus, and information on the psychological follow-up of MPR patients are also discussed.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Fatigue is a common complaint among women throughout pregnancy and during the postpartum period. It is suggested that there are physical, psychological, and situational factors predisposing a woman to fatigue during pregnancy. Several studies have attempted to correlate levels of fatigue with other variables. While many of these studies have noted an association between stress and fatigue related to work or home environment and the increased risk of antenatal morbidity, the mechanism of these effects is unclear. It is important for health care professionals, family members, and employers to recognize fatigue as a real problem during pregnancy and the potential negative impact of adverse working conditions on pregnancy outcome.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Leptin, a recently discovered hormone that is involved in the regulation of body weight, appears to be one of the hormonal factors that signal the body's readiness for sexual maturation and reproduction to the brain. The present review focuses on clinical and experimental studies that describe the roles of maternal and foetal leptin as predictive factors for the physiological and pathophysiological development of the foetus during pregnancy, assisted reproduction and neonatal life. Through evaluating alterations of maternal serum leptin levels, a physiological hyperleptinaemia has been observed to occur, particularly during the second and third trimesters of pregnancy, which is not associated with a decreased food intake or reduced metabolic activity in the pregnant women. This state of leptin resistance is comparable to the condition in obesity. In contrast, hypoleptinaemia is suggested to be an indicator for the cessation of pregnancy, either naturally at term or as a result of pathology at any time during gestation. Thus, an appropriate maternal leptin level seems to be a prerequisite for a normal pregnancy. The main source of foetal leptin is the still immature foetal adipose tissue. As intrauterine growth has been found to be independently associated with cord blood leptin level, it has been suggested that leptin plays a role as a regulator of foetal growth. During assisted reproduction cycles leptin levels in the follicular fluid of patients may be also of predictive value, with low levels predicting therapeutic failure. Finally, the relevance of leptin to postnatal development is reviewed; leptin may be important for regulation of satiety and peripheral metabolism. In summary, leptin appears to be an important permissive factor that is involved in female reproduction.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Neural tube defects represent one of a limited number of congenital conditions for which primary prevention strategies are available. Despite strong clinical evidence to support the preventive effect of supplementary folic acid given prior to conception and continued throughout the first 12 weeks of pregnancy, there is limited recent epidemiological data to support the effectiveness of national folic acid supplementation programs. Whether folic acid fortification of staple foods will provide a more effective means of achieving further reductions in the prevalence rates for this condition remains open to question. Recent advances associating folic acid supplementation, hyperhomocysteinaemia and neural tube defects provide a new insight into the possible pathological mechanism of this and possibly other related congenital conditions.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

The challenge of reducing maternal mortality is increasingly being addressed by area-based efforts to improve access to care of obstetric emergencies. Improving coverage and quality of skilled attendance at birth is also being increasingly emphasized. Post-abortion care, better reproductive health services for adolescents, and improved family planning care are important ingredients in maternal mortality reduction. New developments in malaria, nutrition, violence and HIV/AIDS in relation to maternal health are highlighted, as well as measurement issues. Maternal mortality reduction is also being promoted today by using a human rights approach.

ISSN:1040-872X    

出版商:OVID    

年代:2000

数据来源: OVID