N. Montenegro

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Increased fetal nuchal translucency: possible involvement of early cardiac failure

N. Montenegro, A. Matias, J. Areias, 1997, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Clinical significance of absent or reversed end diastolic velocity waveforms in umbilical artery

H. V. van Geijn, P. Kostense, T. Todros, 1994, The Lancet.

Haemodynamic evaluation of the first trimester fetus with special emphasis on venous return.

N. Montenegro, A. Matias, J. Areias, 2000, Human reproduction update.

Cardiac defects in chromosomally normal fetuses with abnormal ductus venosus blood flow at 10–14 weeks

K. Nicolaides, K. Nicolaides, N. Montenegro, 1999, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Cardiac findings in routine fetal autopsies: more than meets the eye?

N. Montenegro, A. Matias, C. Ramalho, 2012, European journal of obstetrics, gynecology, and reproductive biology.

Phenotypic Variability in Fetuses with Down Syndrome: A Case-Control Pathological Evaluation

N. Montenegro, A. Matias, C. Ramalho, 2011, Fetal Diagnosis and Therapy.

Preeclampsia and Future Cardiovascular Risk: Are Women and General Practitioners Aware of This Relationship? The Experience from a Portuguese Centre

N. Montenegro, M. Rei, Pedro Viana Pinto, 2014, Obstetrics and gynecology international.

Iodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study

C. Calhau, A. Brantsæter, João Costa Leite, 2021, British Journal of Nutrition.

Thrombolysis in pregnancy: a literature review

N. Montenegro, Marina Sousa Gomes, M. Guimarães, 2019, 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.

Placenta accreta – clinical experience of a tertiary care center over 8 years

N. Montenegro, S. Guimarães, A. Machado, 2019 .

Risk of hemorrhage in abnormally invasive placenta according to its management

N. Montenegro, A. Machado, P. Pinto, 2017, 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.

Guidelines for the management of spontaneous preterm labor: identification of spontaneous preterm labor, diagnosis of preterm premature rupture of membranes, and preventive tools for preterm birth

Y. Ville, E. Gratacós, F. Facchinetti, 2011, 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.

24/7 Presence of Medical Staff in the Labor Ward; No Day–Night Differences in Perinatal and Maternal Outcomes

G. Visser, N. Montenegro, C. Ramalho, 2016, American Journal of Perinatology.

Psychological impact of single and multiple courses of assisted reproductive treatments in couples: a comparative study.

N. Montenegro, M. R. Xavier, Salomé Reis, 2013, European journal of obstetrics, gynecology, and reproductive biology.

Lateral ventricles in fetuses with aneuploidies at 11–13 weeks' gestation

K. Nicolaides, K. Nicolaides, N. Montenegro, 2012, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Prenatal ultrasound diagnosis of Tessier number 7 cleft: Case report and review of the literature

E. Pereira, E. Merz, N. Montenegro, 2017, Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology.

Cerebral ventricular system in fetuses with open spina bifida at 11–13 weeks' gestation

K. Nicolaides, N. Montenegro, Y. Gielchinsky, 2012, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Inter- and intra-observer variability in cervical measurement by ultrasound in the first and second trimesters of pregnancy: does it matter?

N. Montenegro, A. Matias, T. Rodrigues, 2015, Journal of perinatal medicine.

Cervical pessary for the prevention of preterm birth: is it of any use?

N. Montenegro, A. Matias, Vera Falcão, 2017, Journal of perinatal medicine.

Ductus venosus revisited: a Doppler blood flow evaluation in the first trimester of pregnancy.

N. Montenegro, A. Matias, J. Areias, 1997, Ultrasound in medicine & biology.

Anomalous fetal venous return associated with major chromosomopathies in the late first trimester of pregnancy

N. Montenegro, A. Matias, J. Areias, 1998, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Spotting the differences in the first trimester of pregnancy in MZ twins: the issue of aneuploidies and TTTS screening

N. Montenegro, A. Matias, M. Macedo, 2020 .

Improving our Knowledge in Twins: The Role of Ductus Venosus in the First Trimester

A. Kurjak, N. Montenegro, A. Matias, 2013 .

Gestational diabetes mellitus: A risk factor for non‐elective cesarean section

N. Montenegro, T. Rodrigues, R. Gorgal, 2012, The journal of obstetrics and gynaecology research.

Neonatal cerebral Doppler: Arterial and venous flow velocity measurements using color and pulsed Doppler system

E. Ramos, N. Montenegro, H. Barros, 1999, Journal of perinatal medicine.

Medical Termination of Delayed Miscarriage: Four-Year Experience with an Outpatient Protocol

Joana Lyra, N. Montenegro, J. Cavaco-Gomes, 2017, Revista Brasileira de Ginecologia e Obstetricia / RBGO - Gynecology and Obstetrics.

Risks of Maternal Obesity in Pregnancy: A Case-control Study in a Portuguese Obstetrical Population

N. Montenegro, Patrícia Alves, M. Malheiro, 2019, Revista Brasileira de Ginecologia e Obstetricia / RBGO - Gynecology and Obstetrics.

Venous return and right ventricular diastolic function in ARED flow fetuses.

N. Montenegro, A. Matias, J. Areias, 1998, Journal of perinatal medicine.

Clinical Impact of Systematically Performing Autopsies following Selective Termination of Pregnancies: Comparison between Multiples and Singletons

N. Montenegro, A. Matias, C. Ramalho, 2014, Fetal Diagnosis and Therapy.

Congenital Posthemorrhagic Hydrocephalus: A Case of Fetomaternal Alloimmune Thrombocytopenia

N. Montenegro, A. Matias, C. Ramalho, 2007, Fetal Diagnosis and Therapy.

Dilated Fourth Ventricle in Fetuses with Trisomy 18, Trisomy 13 and Triploidy at 11–13 Weeks’ Gestation

K. Nicolaides, N. Montenegro, A. F. A. Ferreira, 2012, Fetal Diagnosis and Therapy.

Twin Pregnancies, Crown-rump Length and Birthweight Discordancy: The Influence of Chorionicity

N. Montenegro, A. Matias, J. Nunes, 2020, Revista Brasileira de Ginecologia e Obstetricia / RBGO - Gynecology and Obstetrics.

Velamentous cord insertion in monochorionic twins with or without twin-twin transfusion syndrome: Does it matter?

E. Lopriore, D. Oepkes, N. Montenegro, 2013, Placenta.

Ductus venosus blood flow in chromosomally abnormal fetuses at 11 to 14 weeks of gestation.

N. Montenegro, A. Matias, 2001, Seminars in perinatology.

Relationship between dairy product intake during pregnancy and neonatal and maternal outcomes among Portuguese women.

J. Mota, N. Montenegro, P. Santos, 2017, Obesity research & clinical practice.

Neonatal outcome in preterm deliveries before 34-week gestation – the influence of the mechanism of labor onset

H. Guimarães, N. Montenegro, T. Rodrigues, 2018, 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.

Prediction of clinical outcomes in women with placenta accreta spectrum using machine learning models: an international multicenter study

N. Montenegro, Erbil Karaman, A. Yeniel, 2020, 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.

Human herpes virus 6 causing myocarditis in a fetus: an infectious cause to a congenital heart defect

N. Montenegro, C. Ramalho, J. Simões, 2011, Journal of Clinical Pathology.

Systematic fetal autopsy in cases of medical termination of pregnancy due to chromosomal abnormalities: improving the quality of perinatal care?

N. Montenegro, A. Matias, C. Ramalho, 2010, Prenatal diagnosis.

Congenital abdominal hemangioma: three‐dimensional power Doppler imaging and volume acquisition in the assessment of tumor vasculature

N. Montenegro, J. M. Jesus, J. Beires, 2008, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Progressive macular hypomelanosis Guillet-Hélénon : structural and immunohistochemical findings

N. Montenegro, C. Ramalho, J. Simões, 2011 .

Placental blood flow mapping in the first trimester of human pregnancy

J. Hustin, N. Montenegro, A. Matias, 2005 .

Nuchal Translucency and Ductus venosus Blood Flow as Early Sonographic Markers of Thanatophoric Dysplasia

N. Montenegro, A. Matias, O. Brandão, 2004, Fetal Diagnosis and Therapy.

Non-immune fetal hydrops of metabolic origin: a case report and a review of the literature

N. Montenegro, A. Matias, F. Carvalho, 2017 .

Evolving Indications for the EXIT Procedure: The Usefulness of Combining Ultrasound and Fetal MRI

H. Guimarães, N. Montenegro, A. Matias, 2006, Fetal Diagnosis and Therapy.

Prevention of mother-to-child transmission: experience of a Portuguese centre

N. Montenegro, R. Serrão, A. Sarmento, 2014, Journal of the International AIDS Society.

Complete mole in a dichorionic twin pregnancy after intracytoplasmic sperm injection.

N. Montenegro, F. Carvalho, C. Ramalho, 2013, Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia.

How should success be defined when attempting medical resolution of first-trimester missed abortion?

D. Ayres-de-Campos, N. Montenegro, M. Costa, 2005, European journal of obstetrics, gynecology, and reproductive biology.

[Transvaginal ultrasound assessment of the cervix and digital examination before labor induction].

N. Montenegro, C. Ramalho, A. Machado, 2006, Acta medica portuguesa.

Revisiting Acrania: Same Phenotype, Different Aetiologies

N. Montenegro, A. Matias, C. Ramalho, 2010, Fetal Diagnosis and Therapy.

Effect of obesity on labor duration among nulliparous women with epidural analgesia

N. Montenegro, T. Rodrigues, Tiago Ferraz, 2020, 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.

Concordance for Bilateral Congenital Diaphragmatic Hernia in a Monozygotic Dichorionic Twin Pair – First Clinical Report

N. Montenegro, A. Matias, C. Ramalho, 2010, Fetal Diagnosis and Therapy.

Fetal heart rate in trisomy 21 and other chromosomal abnormalities at 10–14 weeks of gestation

R. Snijders, K. Nicolaides, N. Montenegro, 1996, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Fetal megacystis as a prenatal challenge: megacystis–microcolon–intestinal hypoperistalsis syndrome in a male fetus

N. Montenegro, A. Matias, C. Mariz, 2013, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Monochorionicity: Unveiling the Pandora Box

N. Montenegro, A. Matias, Miguel Pereira-Macedo, 2021, Donald School Journal of Ultrasound in Obstetrics and Gynecology.

Ductus Venosus: A Love Story of 14 Years

N. Montenegro, A. Matias, 2011 .

Ductus venosus in twins: science matters

N. Montenegro, A. Matias, 2016, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Ductus venosus flow at 11–13 weeks in the prediction of birth weight discordance in monochorionic twins

K. Nicolaides, N. Montenegro, A. Matias, 2011, Journal of perinatal medicine.

Screening for twin–twin transfusion syndrome at 11–14 weeks of pregnancy: the key role of ductus venosus blood flow assessment

N. Montenegro, A. Matias, S. Duarte, 2010, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Screening for chromosomal abnormalities at 10–14 weeks: the role of ductus venosus blood flow

N. Montenegro, K. Nicolaides, K. Nicolaides, 1998, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Positive biochemical screening for trisomy 18: on the path of trisomy 9

N. Montenegro, A. Matias, S. Castedo, 2008, Prenatal diagnosis.

Ductus venosus agenesis and fetal malformations: what can we expect? – a systematic review of the literature

N. Montenegro, A. Matias, O. Brandão, 2018, Journal of perinatal medicine.

Early Antenatal Diagnosis of Cardiac Defects Using Transvaginal Doppler Ultrasound: New Perspectives?

N. Montenegro, A. Matias, J. Areias, 1998, Fetal Diagnosis and Therapy.

Reverse end‐diastolic umbilical artery blood flow at 11 weeks' gestation

L. Pereira Leite, N. Montenegro, J. Beires, 1995, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

International Congress of Drug Therapy in HIV Infection 2‐6 November 2014, Glasgow, UK

Samit R. Joshi, Charlene A Flash, Thomas Lengauer, 2014 .

Outcome of 88 pregnancies with absent or reversed end-diastolic blood flow (ARED flow) in the umbilical arteries.

N. Montenegro, A. Matias, L. P. Leite, 1998, European journal of obstetrics, gynecology, and reproductive biology.

The association of milk and dairy consumption with iodine status in pregnant women in Oporto region

C. Calhau, A. Brantsæter, E. Pinto, 2021, British Journal of Nutrition.

Critical evaluation of national vital statistics: the case of preterm birth trends in Portugal

Henrique Barros, H. Barros, N. Montenegro, 2015, Acta obstetricia et gynecologica Scandinavica.

Late miscarriage caused by Serratia marcescens: a rare but dire disease in pregnancy

N. Montenegro, O. Brandão, M. Moucho, 2015, BMJ Case Reports.

Search for hemodynamic compromise at 11–14 weeks in monochorionic twin pregnancy: Is abnormal flow in the ductus venosus predictive of twin–twin transfusion syndrome?

N. Montenegro, A. Matias, C. Ramalho, 2005, 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.

Anticipating twin-twin transfusion syndrome in monochorionic twin pregnancy. Is there a role for nuchal translucency and ductus venosus blood flow evaluation at 11-14 weeks?

N. Montenegro, A. Matias, J. Areias, 2000 .

Down syndrome screening in multiple pregnancies.

I. Blickstein, N. Montenegro, A. Matias, 2005, Obstetrics and gynecology clinics of North America.

Anticipating twin–twin transfusion syndrome in monochorionic twin pregnancy. Is there a role for nuchal translucency and ductus venosus blood flow evaluation at 11–14 weeks?

N. Montenegro, A. Matias, J. Areias, 2000, Twin Research.

Evaluation of the role of first-trimester obstetric ultrasound in the detection of major anomalies: a systematic review

N. Montenegro, A. Matias, S. Farraposo, 2014, Journal of perinatal medicine.

External cephalic version: Predictors of success and influence on caesarean rates.

D. Ayres-de-Campos, N. Montenegro, C. Ramalho, 2020, European journal of obstetrics, gynecology, and reproductive biology.

[Sonographic measurement of cervical length and prediction of spontaneous preterm delivery: how useful is it?].

N. Montenegro, T. Loureiro, M. Cunha, 2006, Acta medica portuguesa.

Labor Induction vs. Expectant Management of Low-Risk Pregnancy.

N. Montenegro, T. Rodrigues, P. Pinto, 2018, New England Journal of Medicine.

Critical evaluation of elective termination of pregnancy in a tertiary fetal medicine center during 43 months: correlation of prenatal diagnosis findings and postmortem examination

N. Montenegro, A. Matias, C. Ramalho, 2006, Prenatal diagnosis.

Periconceptional CMV infection prevention in Portugal: population subgroup study in a tertiary perinatal care center

N. Montenegro, A. Rouxinol-Dias, M. Moucho, 2018, 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.

[Surgical basic skills: surgical sutures].

N. Montenegro, A. Machado, R. Gorgal, 2011, Acta Médica Portuguesa.

Impact of compliance with different guidelines on physical activity during pregnancy and perceived barriers to leisure physical activity

J. Mota, Rute Santos, C. Moreira, 2014, Journal of sports sciences.

[Periodontal disease, tobacco and preterm delivery].

N. Montenegro, E. Pinto, M. Pinto, 2011, Acta medica portuguesa.

Objectively Assessed Physical Activity and Sedentary Behaviour During Pregnancy in Portuguese Women: Differences Between Trimesters and Weekdays and Weekends

J. Mota, L. Atkinson, M. Duncan, 2017 .

Precesarean Prophylactic Balloon Catheters for Suspected Placenta Accreta: A Randomized Controlled Trial.

N. Montenegro, A. Machado, P. Pinto, 2016, Obstetrics and Gynecology.

Vaginal delivery in a woman infected with SARS-CoV-2 – The first case reported in Portugal

N. Montenegro, A. Vilan, M. Moucho, 2020, European Journal of Obstetrics & Gynecology and Reproductive Biology.