Chasen, Stephen T

Publications

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selected publications

Cell-free DNA screening for trisomy 21 in twin pregnancy: a large multicenter cohort study. American journal of obstetrics and gynecology. 2023 Academic Article GET IT
Is Amniocentesis after CVS Risky?. American journal of perinatology. 2022 Academic Article GET IT
Potentially Preventable Primary Cesarean Sections in Future Placenta Accreta Spectrum. American journal of perinatology. 2021 Academic Article GET IT
Times cited: 1
Ultrasound detection rates of the placenta accreta spectrum with prior myomectomy. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2021 Academic Article GET IT
Times cited: 2
Obstetrical Complications and Long-Term Cardiovascular Outcomes. Current hypertension reports. 2020 Review GET IT
Times cited: 4
Prenatally diagnosed vasa previa: association with adverse obstetrical and neonatal outcomes. American journal of obstetrics & gynecology MFM. 2020 Academic Article GET IT
Times cited: 10
Suspected Placenta Accreta: Using Imaging to Stratify Risk of Morbidity. American journal of perinatology. 2020 Academic Article GET IT
Times cited: 1
Preeclampsia and low sodium (PALS): A case and systematic review. 2020 GET IT
Times cited: 8
Abortion for Fetal Genetic Abnormalities: Type of Abnormality and Gestational Age at Diagnosis. AJP reports. 2020 Academic Article GET IT
Times cited: 2
Abortion for fetal indications: Timing of prenatal diagnosis and abortion for structural and genetic abnormalities. Contraception. 2020 Academic Article GET IT
Times cited: 2
Maternal morbidity of induction of labor compared to planned cesarean delivery in twin gestations. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2019 Academic Article GET IT
Times cited: 5
Pregnancy Outcomes in Women with Incidentally Detected Unicornuate Uteri. American journal of perinatology. 2019 Academic Article GET IT
Times cited: 4
Diagnostic accuracy of isolated clubfoot in twin compared to singleton gestations. Journal of perinatal medicine. 2019 Academic Article GET IT
Times cited: 3
Abnormal nuchal translucency: residual risk with normal cell-free DNA screening. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2019 Academic Article GET IT
Times cited: 6
Isolated Fetal Cardiac Abnormalities: Are They Really Isolated? 2018 GET IT
Times cited: 1
Induction of labor in twin gestation: can we predict success?. Journal of perinatal medicine. 2018 Academic Article GET IT
Times cited: 4
Clarification of the methods and statistics in the study "Planned home birth and the association with neonatal hypoxic ischemic encephalopathy". Journal of perinatal medicine. 2018 Letter GET IT
The Use of Ultrasound as a Potential Adjunct to Cell-Free Fetal DNA Screening for Aneuploidy at Weill Cornell Medical College, New York, USA. Surgery journal (New York, N.Y.). 2018 Academic Article GET IT
Planned home birth and the association with neonatal hypoxic ischemic encephalopathy. Journal of perinatal medicine. 2017 Academic Article GET IT
Times cited: 20
Testing for Noonan syndrome after increased nuchal translucency. Prenatal diagnosis. 2017 Academic Article GET IT
Times cited: 34
Hyponatremia associated with preeclampsia. Journal of perinatal medicine. 2017 Academic Article GET IT
Times cited: 18
Preterm delivery in triplet pregnancies. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2017 Academic Article GET IT
Times cited: 3
Placental malperfusion as a possible mechanism of preterm birth in patients with Müllerian anomalies. Journal of perinatal medicine. 2017 Academic Article GET IT
Times cited: 17
Amniotic Band Syndrome, Perinatal Hospice, and Palliative Care versus Active Management. Case reports in obstetrics and gynecology. 2016 Academic Article GET IT
Times cited: 8
The decreasing trend in early-term repeat cesarean deliveries in the United States: 2005 through 2014. American journal of obstetrics and gynecology. 2016 Letter GET IT
Times cited: 2
First trimester cystic hygroma: does early detection matter?. Prenatal diagnosis. 2016 Academic Article GET IT
Times cited: 13
Unilateral Fetal Renal Abnormalities: Are They Really Isolated?. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2016 Academic Article GET IT
Times cited: 2
Low PAPP-A: the impact of ultrasound to evaluate fetal growth. Prenatal diagnosis. 2015 Academic Article GET IT
Times cited: 2
Trends in timing of prenatal diagnosis and abortion for fetal chromosomal abnormalities. American journal of obstetrics and gynecology. 2015 Academic Article GET IT
Times cited: 28
"We can" doesn't mean "we should": aggressive interventions to prolong pregnancy. The virtual mentor : VM. 2014 Academic Article GET IT
Times cited: 1
Impact of non-steroidal anti-inflammatory drugs on hypertensive disorders of pregnancy. Pregnancy hypertension. 2014 Academic Article GET IT
Times cited: 25
Maternal serum analyte screening for fetal aneuploidy. Clinical obstetrics and gynecology. 2014 Review GET IT
Times cited: 5
Echogenic intracardiac foci: disclosure and the rate of amniocentesis in low-risk patients. American journal of obstetrics and gynecology. 2013 Academic Article GET IT
Times cited: 5
Improving antenatal prediction of small-for-gestational-age neonates by using customized versus population-based reference standards. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2013 Academic Article GET IT
Times cited: 4
Academic differences among male and female candidates applying for obstetrics and gynecology residency: the experience of one program. Journal of surgical education. 2013 Academic Article GET IT
Times cited: 7
Can early ultrasound reduce the gestational age at abortion for fetal anomalies?. Contraception. 2012 Academic Article GET IT
Times cited: 17
Efficient direct reprogramming of mature amniotic cells into endothelial cells by ETS factors and TGFβ suppression. Cell. 2012 Academic Article GET IT
Times cited: 172
Sequential testing for Down syndrome: the impact on estimated risk. Prenatal diagnosis. 2012 Academic Article GET IT
Times cited: 1
Risk factors for preterm delivery with placenta previa. Journal of perinatal medicine. 2011 Academic Article GET IT
Times cited: 20
Risk factors for emergent preterm delivery in women with placenta previa and ultrasound findings suspicious for placenta accreta. Journal of perinatal medicine. 2011 Academic Article GET IT
Times cited: 12
Are age cutoffs still used to identify candidates for invasive testing for chromosomal abnormalities?. The Journal of reproductive medicine. 2011 Academic Article GET IT
Times cited: 5
Does timing of biochemistry in first-trimester aneuploidy risk assessment affect the gestational age at prenatal diagnosis and pregnancy termination?. Prenatal diagnosis. 2010 Academic Article GET IT
Times cited: 1
Citation classics in obstetrics and gynecology: the 100 most frequently cited journal articles in the last 50 years. American journal of obstetrics and gynecology. 2010 Academic Article GET IT
Times cited: 129
The relationship between placental histology and cervical length in twin gestations. Journal of perinatal medicine. 2010 Academic Article GET IT
Times cited: 3
Clinical implications of first-trimester screening. Clinics in laboratory medicine. 2010 Review GET IT
Times cited: 3
First trimester pregnancy associated plasma protein-A as a marker for poor pregnancy outcome in patients with early-onset fetal growth restriction. Prenatal diagnosis. 2009 Academic Article GET IT
Times cited: 20
Basic versus detailed sonography: what do we miss?. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2009 Academic Article GET IT
First-trimester biochemistry and outcomes in twin pregnancy. The Journal of reproductive medicine. 2009 Academic Article GET IT
Times cited: 9
Influence of maternal body mass index on the clinical estimation of fetal weight in term pregnancies. Obstetrics and gynecology. 2009 Academic Article GET IT
Times cited: 46
Inappropriate use of vancomycin for preventing perinatal group B streptococcal (GBS) disease in laboring patients. Journal of perinatal medicine. 2009 Academic Article GET IT
Times cited: 7
Second-trimester fetal growth as a predictor of poor obstetric and neonatal outcome in patients with low first-trimester serum pregnancy-associated plasma protein-A and a euploid fetus. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 2009 Academic Article GET IT
Times cited: 11
The recommendation for bed rest in the setting of arrested preterm labor and premature rupture of membranes. American journal of obstetrics and gynecology. 2008 Academic Article GET IT
Times cited: 41
Physical and sexual activity during pregnancy and near delivery. Journal of women's health (2002). 2008 Academic Article GET IT
Times cited: 14
Clinical estimation of fetal weight and the Hawthorne effect. European journal of obstetrics, gynecology, and reproductive biology. 2008 Academic Article GET IT
Times cited: 48
Outcomes of preterm premature rupture of membranes in twin pregnancies. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2008 Academic Article GET IT
Times cited: 23
Contemporary practice patterns and beliefs regarding tocolysis among u.s. Maternal-fetal medicine specialists. Obstetrics and gynecology. 2008 Academic Article GET IT
Times cited: 44
Second-trimester fetal growth and the risk of poor obstetric and neonatal outcomes. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 2008 Academic Article GET IT
Times cited: 27
Spontaneous resolution of an adrenal mass seen on ultrasound at 17 weeks gestation. 2008 GET IT
Times cited: 1
Comparison of clinical estimation of fetal weight at the beginning and end of labor. International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics. 2008 Academic Article GET IT
Times cited: 2
History-indicated cerclage: practice patterns of maternal-fetal medicine specialists in the USA. Journal of perinatal medicine. 2008 Academic Article GET IT
Times cited: 12
Negative fetal fibronectin: who is still treating for threatened preterm labor and does it help?. Journal of perinatal medicine. 2008 Academic Article GET IT
Times cited: 9
First-trimester risk assessment for trisomies 21 and 18 in twin pregnancy. American journal of obstetrics and gynecology. 2007 Academic Article GET IT
Times cited: 34
Inpatient management for a shortened cervix: who is really at risk?. American journal of obstetrics and gynecology. 2007 Academic Article GET IT
Times cited: 1
Re: Short cervix: is a follow-up measurement useful?. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 2007 Letter GET IT
Short cervix: is a follow-up measurement useful?. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 2007 Academic Article GET IT
Times cited: 21
Does hospitalization prevent preterm delivery in the patient with a short cervix?. American journal of perinatology. 2006 Academic Article GET IT
Times cited: 13
Are in vitro fertilization pregnancies with early spontaneous reduction high risk?. American journal of obstetrics and gynecology. 2006 Academic Article GET IT
Times cited: 33
Gestational age at abortion: the impact of first-trimester risk assessment for aneuploidy. American journal of obstetrics and gynecology. 2006 Academic Article GET IT
Times cited: 10
Peripartum and perioperative management of the anticoagulated patient. Obstetrics and gynecology clinics of North America. 2006 Review GET IT
Times cited: 4
Does a "vanishing twin" affect first-trimester biochemistry in Down syndrome risk assessment?. American journal of obstetrics and gynecology. 2006 Academic Article GET IT
Times cited: 34
Further evidence for first-trimester risk assessment as an autonomy-enhancing strategy. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 2006 Comment GET IT
Times cited: 3
Clinical use of first-trimester aneuploidy screening in a United States population can replicate data from clinical trials. American journal of obstetrics and gynecology. 2006 Academic Article GET IT
Times cited: 34
Clara cell protein 16 concentration in mid-trimester amniotic fluid: association with fetal gender, fetal G>A +38 CC16 gene polymorphism and pregnancy outcome. Journal of reproductive immunology. 2005 Academic Article GET IT
Times cited: 16
Patient preference regarding first-trimester aneuploidy risk assessment. American journal of obstetrics and gynecology. 2005 Academic Article GET IT
Times cited: 20
Differential expression of immune system-related components in midtrimester amniotic fluid from singleton and twin pregnancies. American journal of obstetrics and gynecology. 2005 Academic Article GET IT
Times cited: 12
Obstetric outcomes after surgical abortion at > or = 20 weeks' gestation. American journal of obstetrics and gynecology. 2005 Academic Article GET IT
Times cited: 16
Clinical implications of the ethics of informed consent for first-trimester risk assessment for trisomy 21. Seminars in perinatology. 2005 Review GET IT
Times cited: 13
First-trimester crown-rump-length (CRL) discrepancy: much ado about nothing?. American journal of obstetrics and gynecology. 2005 Letter GET IT
Times cited: 2
Ultrasound evaluation of abnormal umbilical cord coiling in second trimester of gestation in association with adverse pregnancy outcome. American journal of obstetrics and gynecology. 2005 Academic Article GET IT
Times cited: 50
A sonographic assessment of different patterns of placenta previa "migration" in the third trimester of pregnancy. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2005 Academic Article GET IT
Times cited: 25
Fetal growth assessment and neonatal birth weight in fetuses with an isolated single umbilical artery. Obstetrics and gynecology. 2005 Academic Article GET IT
Times cited: 52
Isolated fetal ascites caused by bowel perforation due to colonic atresia. 2005 GET IT
Times cited: 23
Assessment of umbilical cord coiling during the routine fetal sonographic anatomic survey in the second trimester. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2005 Academic Article GET IT
Times cited: 32
The umbilical cord thickness measured at 18-23 weeks of gestational age. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2005 Academic Article GET IT
Times cited: 12
Changes in fetal presentation in twin pregnancies. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2005 Academic Article GET IT
Times cited: 12
Association of amniotic fluid index with estimated fetal weight. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2004 Academic Article GET IT
Times cited: 17
Clinical significance of first trimester crown-rump length disparity in dichorionic twin gestations. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 39
Fetal interleukin-1 receptor antagonist gene polymorphism, intra-amniotic interleukin-1beta levels, and history of spontaneous abortion. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 27
First-trimester prediction of growth discordance in dichorionic twin gestations. American journal of obstetrics and gynecology. 2004 Letter GET IT
Times cited: 1
Mycoplasma hominis and Ureaplasma urealyticum in midtrimester amniotic fluid: association with amniotic fluid cytokine levels and pregnancy outcome. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 143
Polymorphisms in the tumor necrosis factor-alpha gene at position -308 and the inducible 70 kd heat shock protein gene at position +1267 in multifetal pregnancies and preterm premature rupture of fetal membranes. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 25
Fetal aneuploidy and umbilical cord thickness measured between 14 and 23 weeks' gestational age. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2004 Academic Article GET IT
Times cited: 8
First- and second-trimester ultrasound assessment of gestational age. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 85
Causes of thrombocytopenia in triplet pregnancies. American journal of obstetrics and gynecology. 2004 Letter GET IT
Times cited: 4
Dilation and evacuation at >or=20 weeks: comparison of operative techniques. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 27
Is nuchal translucency screening associated with different rates of invasive testing in an older obstetric population?. American journal of obstetrics and gynecology. 2004 Academic Article GET IT
Times cited: 30
Atypical sonographic presentation of fetal unilateral inguinoscrotal hernia in a multiple gestation. 2004 GET IT
Times cited: 4
The effect of childbirth on pelvic organ mobility. Obstetrics and gynecology. 2003 Letter GET IT
Times cited: 1
Interleukin-1 receptor antagonist gene polymorphism and multifetal pregnancy outcome. American journal of obstetrics and gynecology. 2003 Academic Article GET IT
Times cited: 38
Prognostic factors associated with antenatal subchorionic echolucencies. American journal of obstetrics and gynecology. 2003 Academic Article GET IT
Times cited: 20
Use of fetal magnetic resonance imaging in patients electing termination of pregnancy by dilation and evacuation. American journal of obstetrics and gynecology. 2003 Academic Article GET IT
Times cited: 12
First trimester prediction of growth discordance in twin gestations. American journal of obstetrics and gynecology. 2003 Academic Article GET IT
Times cited: 69
First-trimester screening for aneuploidy with fetal nuchal translucency in a United States population. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 2003 Academic Article GET IT
Times cited: 34
Causes of thrombocytopenia in triplet gestations. American journal of obstetrics and gynecology. 2003 Academic Article GET IT
Times cited: 20
Ethical issues in the management of pregnancies complicated by fetal anomalies. Obstetrical & gynecological survey. 2003 Review GET IT
Times cited: 27
Ethical dimensions of nuchal translucency screening. Clinics in perinatology. 2003 Academic Article GET IT
Times cited: 3
Esophageal atresia and tracheoesophageal fistula: the impact of prenatal suspicion on neonatal outcome in a tertiary care center. Journal of perinatal medicine. 2003 Academic Article GET IT
Times cited: 11
Impact of midtrimester dilation and evacuation on subsequent pregnancy outcome. American journal of obstetrics and gynecology. 2002 Academic Article GET IT
Outcomes of dichorionic triplet pregnancies. American journal of obstetrics and gynecology. 2002 Academic Article GET IT
Times cited: 44
The effect of treatment of twin-twin transfusion syndrome on the diagnosis-to-delivery interval. Twin research : the official journal of the International Society for Twin Studies. 2002 Review GET IT
Times cited: 18
Correlation between rare chromosomal abnormalities and prenatal ultrasound findings. American journal of medical genetics. 2002 Academic Article GET IT
Times cited: 7
Factors associated with fetal demise in fetal echogenic bowel. American journal of obstetrics and gynecology. 2001 Academic Article GET IT
Prenatal informed consent for sonogram: the time for first-trimester nuchal translucency has come. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2001 Editorial Article GET IT
Times cited: 34
The clinical significance of fetal echogenic bowel. American journal of obstetrics and gynecology. 2001 Academic Article GET IT
The role of cephalocentesis in modern obstetrics. 2001 GET IT
Correlation between prenatal and neonatal birth order in twin pregnancy. American journal of perinatology. 2001 Academic Article GET IT
Times cited: 4
Vaginal delivery of twins and neonatal respiratory disorders. American journal of obstetrics and gynecology. 2000 Letter GET IT
Cardiac tamponade as an unusual presentation of advanced breast cancer in pregnancy. 1999 GET IT
Times cited: 8
Cesarean delivery of twins and neonatal respiratory disorders. American journal of obstetrics and gynecology. 1999 Academic Article GET IT
Times cited: 37
Necrotizing funisitis with intrapartum umbilical cord rupture. 1999 GET IT
Times cited: 12
The Vecchietti procedure for surgical treatment of vaginal agenesis: comparison of laparoscopy and laparotomy. International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics. 1999 Academic Article GET IT
Times cited: 82
Hemoglobinopathy screening in pregnancy: comparison of two protocols. American journal of perinatology. 1999 Academic Article GET IT
Times cited: 4
Natural history of fetuses with cleft lip. Plastic and reconstructive surgery. 1999 Academic Article GET IT
Times cited: 13
What is the relationship between the universal use of ultrasound, the rate of detection of twins, and outcome differences?. Clinical obstetrics and gynecology. 1998 Academic Article GET IT
Times cited: 10
Mid-trimester emergent cerclage: a ten year single institution review. Journal of perinatology : official journal of the California Perinatal Association. 1998 Academic Article GET IT
Times cited: 23
Very-low-birthweight breech infants: short-term outcome by method of delivery. The Journal of maternal-fetal medicine. 1997 Academic Article GET IT
Times cited: 33
Immunohistochemical and biochemical analysis of N-cadherin expression during CNS development. Journal of neuroscience research. 1992 Academic Article GET IT
Times cited: 36

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Background

education and training

M.D., Jefferson Medical College, Thomas Jefferson University 1992
B.S., Pennsylvania State University 1990

Contact

full name

Stephen T Chasen

primary email

stchasen@med.cornell.edu

webpage

Clinical Profile

VIVO Weill Cornell Medical College

Stephen T Chasen Professor of Clinical Obstetrics and Gynecology

Publications

selected publications

Background

education and training

Contact

full name

primary email

webpage

Phone

Publications

selected publications

Background

education and training

Contact

full name

primary email

webpage