Abstract：
:This article gives an overview of various clinical research designs such as randomization, cohort studies, and case-control studies. It also describes several biases that may occur in design studies and relevant statistics relating to surgeons using lasers.
journal_name
Obstet Gynecol Clin North Amjournal_title
Obstetrics and gynecology clinics of North Americaauthors
Wheeler JMsubject
Has Abstractpub_date
1991-09-01 00:00:00pages
667-76issue
3eissn
0889-8545issn
1558-0474journal_volume
18pub_type
杂志文章abstract：:A historical perspective and the physics and application of transvaginal imaging (TVI) for infertility investigation are presented. Pelvic anatomy, ovarian physiology, and reproductive endocrine changes as they relate to TVI for infertility processes are correlated with TVI. The transvaginal ultrasound approach for im...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1991-12-01 00:00:00
abstract：:Despite the problems associated with coitus-dependent methods of contraception, barrier methods have an important role. The fact that they work as contraceptives without systemic effects makes them particularly appropriate for women with medical conditions that prevent the use of hormonal contraception. In addition, c...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8545(05)70174-1
更新日期：2000-12-01 00:00:00
abstract：:Addressing sexual health, screening, and counseling to prevent sequelae of risky sexual behavior are essential components of the adolescent visit to the gynecologist. Discussing sexuality and taking a sexual history may cause feelings of discomfort for the provider and adolescent patient alike. Taking the time to buil...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2009.01.001
更新日期：2009-03-01 00:00:00
abstract：:This article discusses the role of ultrasound in assessing endometrial and uterine factors affecting the implantation of the embryo. Modern ultrasound equipment includes advanced Doppler and three-dimensional facilities that refine our understanding of factors that affect implantation such as endometrial blood flow. T...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2019.08.002
更新日期：2019-12-01 00:00:00
abstract：:Hydatidiform moles are divided into two syndromes: those of complete and partial moles. Both forms are genetically, morphologically, and clinically distinct. Choriocarcinoma can be associated with the complete mole that has not been described for the partial syndrome. Residual trophoblastic disease, on the contrary, c...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1988-09-01 00:00:00
abstract：:The discovery that insulin resistance has a key role in the pathophysiology of PCOS has led to a novel and promising form of therapy in the form of the insulin-sensitizing drugs. Although no extremely large trials using these drugs for this indication have been performed, more than 18 trials have specifically examined...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8545(05)70191-1
更新日期：2001-03-01 00:00:00
abstract：:In less than two decades, hysteroscopy has evolved into a practical technique for the evaluation of the uterine cavity, with well-established indications such as evaluation of abnormal uterine bleeding and abnormal hysterograms as well as the treatment of intrauterine adhesions or the septate uterus, the removal of mi...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1988-03-01 00:00:00
abstract：:The role of cytology in cervical cancer screening is rapidly evolving. Widespread implementation of The Bethesda System with its accompanying atlas has provided uniform terminology and criteria for reporting cervical pathology. The development of new methods for preparing cytologic specimens as well as many other scre...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1996-09-01 00:00:00
abstract：:Congenital heart disease comprises most maternal cardiac diseases in pregnancy and is an important cause of maternal, fetal, and neonatal morbidity and mortality worldwide. Pregnancy is often considered a high-risk state for individuals with structural heart disease as a consequence of a limited ability to adapt to th...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2018.01.011
更新日期：2018-06-01 00:00:00
abstract：:As the understanding of cancer biology expands, a wider array of treatment options has become available in the field of gynecologic cancer. Therapies that target specific molecular pathways are now being used. Drugs that target cancer angiogenesis, signal transduction, DNA repair, and immune evasion mechanisms are cur...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2018.09.009
更新日期：2019-03-01 00:00:00
abstract：:With the highest rates of unintended pregnancy and abortion in the developed world, the United States has plenty of room for improving the distribution of existing contraceptive options and an imperative for developing new methods. This article surveys new and future contraceptive methods. It does not contain a compre...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2007.01.006
更新日期：2007-03-01 00:00:00
abstract：:Women with unexplained recurrent pregnancy loss (RPL) represent a highly heterogeneous group of patients. Past studies have investigated systemic endocrine and immunologic mechanisms as potential causes for pregnancy loss in unexplained RPL, while exciting new work has focused on spermatozoal, embryonic, and endometri...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2013.10.008
更新日期：2014-03-01 00:00:00
abstract：:Uterine fibroids are a major gynecologic problem in American women, and several alternatives have been developed. Conservative treatment, with the goal of treating the fibroid but retaining the uterus, is a frequent choice among women who require therapy during their early to middle reproductive years. A variety of co...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章
doi：10.1016/j.ogc.2005.12.012
更新日期：2006-03-01 00:00:00
abstract：:Breast cancer in pregnancy is likely to become more common because more women have been waiting to bear children until they are in their 40s. This article presents an overview of pregnancy-associated breast cancer and a review of surgical, chemotherapeutical, and radiation principles as they pertain to pregnancy. ...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8545(03)00064-0
更新日期：2002-03-01 00:00:00
abstract：:Recognizing the enormous impact that quality breast screening mammography can have on reducing breast cancer deaths, we need to determine when women's and physician's perceived restrictions for mammography examination impede the progress of its use for early cancer detection. A uniform system should emphasize valid co...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1990-12-01 00:00:00
abstract：:Is there evidence for a perimenopausal sleep disorder? We address this question in our presentation of the Study of Women's Health Across the Nation (SWAN) "sleep story," in which we summarize and discuss data addressing sleep quality, objective measures of sleep patterns, and sleep disorders that have been published ...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2011.06.002
更新日期：2011-09-01 00:00:00
abstract：:An understanding of cesarean delivery for nonreassuring fetal heart rate tracing is important for several reasons. This article describes the prevalence of cesarean for nonreassuring fetal heart rate tracing and risk factors, indicates what type of fetal heart rate tracing abnormalities prompts cesarean delivery, reit...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2005.01.003
更新日期：2005-06-01 00:00:00
abstract：:AIDS is the leading cause of death among women aged 25 to 34 years in New York City. Gynecologic care should be directed toward early identification and aggressive treatment of infectious and neoplastic processes that may take a more fulminant course in immunosuppressed women. Dealing with women's contraceptive needs ...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1990-09-01 00:00:00
abstract：:Women who use tobacco, alcohol and drugs during pregnancy are at increased risk of maternal and fetal morbidity. Universal screening using empirically validated approaches can improve identification of substance-using pregnant women and facilitate comprehensive assessment of treatment needs. There is strong evidence f...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2014.03.001
更新日期：2014-06-01 00:00:00
abstract：:Anorectal disorders cause significant discomfort and embarrassment in women. The onset typically follows childbirth and symptoms increase with age. This article discusses anal incontinence, defecatory dysfunction, rectal prolapse, and constipation. ...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章
doi：10.1016/j.ogc.2009.08.004
更新日期：2009-09-01 00:00:00
abstract：:Dyspepsia with or without nausea is common during pregnancy. Known ulcer disease, gastritis, and GERD may improve during pregnancy. Many women have a stoic and long-suffering posture during pregnancy owing to an unrealistic expectation concerning the teratogenicity of commonly used drugs. It is appropriate in medicine...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8545(05)70204-7
更新日期：2001-06-01 00:00:00
abstract：:The concept of having an in-house obstetrician (serving as an obstetrics [OB] hospitalist) available 24 hours a day, 7 days a week provides a safety net for OB events that many need immediate intervention for a successful outcome. A key precept of risk management, that of loss prevention, fits perfectly with the addit...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2015.05.008
更新日期：2015-09-01 00:00:00
abstract：:Implementing change is difficult; few people want to wade into this area because of the challenge. However, it is highly rewarding and does not have to be complicated. Success requires a clear understanding of health care context, patient safety, and behavioral psychology. To achieve its goal, this article is divided ...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2019.01.005
更新日期：2019-06-01 00:00:00
abstract：:Except in special circumstances, therapeutic insemination with a husband's sample has a low success rate. Couples in whom oligozoospermia has been identified as the principal cause of infertility do not benefit from therapeutic insemination by husband. Because of this low success rate, intrauterine insemination to pro...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1987-12-01 00:00:00
abstract：:Ultimately, the timely diagnosis of ovarian cancer will rely on clinical judgment and careful analysis of presenting symptoms within the context of a thoughtful dialogue between the patient and her physician. Symptoms most typical of ovarian cancer include bloating, abdominal or pelvic pain, and difficulty eating. In ...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章
doi：10.1016/j.ogc.2012.02.007
更新日期：2012-06-01 00:00:00
abstract：:This report summarizes the current literature on abdominal, laparoscopic, and transvaginal mesh for the treatment of pelvic organ prolapse. This article reviews objective and subjective cure rates as well as complications associated with synthetic mesh use for pelvic organ prolapse repair. The focus is on the latest l...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2015.10.004
更新日期：2016-03-01 00:00:00
abstract：:Tubal factor infertility accounts for a large portion of female factor infertility. The most prevalent cause of tubal factor infertility is pelvic inflammatory disease and acute salpingitis. The diagnosis of tubal occlusion can be established by a combination of clinical suspicion based on patient history and diagnost...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.ogc.2012.09.006
更新日期：2012-12-01 00:00:00
abstract：:Proper use of postmenopausal hormone replacement has been the subject of debate for decades. Prevailing medical opinion has swung between enthusiastic endorsement and extreme caution. The wave of optimism over estrogen's beneficial effects on menopausal symptoms and skeletal health was temporarily set back by the evid...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1990-12-01 00:00:00
abstract：:If the contraindications to hysteroscopy are observed, complications should be small. The risks of fluid overload, especially in operative cases, is the most common critical problem, so that accurate recording of fluid use and collection are essential. The inexperienced, unsupervised surgeon is most likely to encounte...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1995-09-01 00:00:00
abstract：:Canavan disease is a severe leukodystrophy more common among Ashkenazi Jews. The enzyme defect, apartoacylase, has been identified, and the gene cloned. Only two mutations account for over 98% of all Jewish alleles with Canavan disease. The carrier frequency among healthy Jews is 1:37-58. Carrier detection and prenata...
journal_title：Obstetrics and gynecology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8545(01)00003-1
更新日期：2002-06-01 00:00:00
