Results 41 to 50 of about 5,376 (192)

Manejo de embarazos únicos con diagnóstico antenatal de vasa previa

open access: yesARS Medica, 2023
Introducción: vasa previa (VP) corresponde al paso de los vasos umbilicales por las membranas amnióticas, sin protección de gelatina de Wharton o placenta, antes de la presentación fetal, sobre el orificio cervical interno. Pese a su baja incidencia, el
María José Vergara López   +2 more
doaj   +1 more source

Size dependence of the Tc and the superconducting energy gap in nanocrystalline thin films of Nb [PDF]

open access: yesPhys. Rev. Lett. 95, 147003 (2005), 2004
In nanocrystalline Nb films, the superconducting Tc decreases with a reduction in the average particle size below 20nm. We correlate the decrease in Tc with a reduction in the superconducting energy gap measured by point contact spectroscopy. Consistent with the Anderson criterion, no superconducting transition was observed for sizes below 8 nm.
arxiv   +1 more source

Vasa previa evaluated by noncontrast time-of-flight magnetic resonance angiography

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2016
Objective: Vasa previa is a rare complication, and rupture of vasa previa during pregnancy may lead to significant perinatal mortality. Here, we report a case of vasa previa evaluated prenatally using noncontrast time-of-flight magnetic resonance ...
Naoyuki Iwahashi   +5 more
doaj   +1 more source

Ruptura de Vasos Prévios: Relato de Caso [PDF]

open access: yesRevista Brasileira de Ginecologia e Obstetrícia, 2001
No diagnóstico diferencial das hemorragias do terceiro trimestre da gestação, de causa exclusivamente obstétrica, incluem-se descolamento prematuro da placenta, inserção baixa da placenta (placenta prévia, com seus subtipos), ruptura uterina, ruptura do ...
José Rafael Macéa   +1 more
doaj   +1 more source

Ultrasound diagnosis of placental and umbilical cord anomalies in singleton pregnancies resulting from in-vitro fertilization [PDF]

open access: yes, 2023
Introduction: placental anomalies can affect fetal and maternal outcome due to severe maternal hemorrhage potentially resulting in hysterectomy and cord accident including abruption that can determine fetal damage or death.
Contro, E   +8 more
core   +1 more source

A close call: does the location of incision at cesarean delivery matter in patients with vasa previa? A case report. [PDF]

open access: yes, 2014
We present here a case of vasa previa in a multipara, diagnosed at the time of her late second trimester ultrasonogram. The patient subsequently underwent an elective cesarean section after 37 weeks gestation, giving birth to a healthy child with an ...
Baxi, Laxmi V, Neuhausser, Werner M
core   +1 more source

Vasa previa, presentación de un caso en un centro de referencia en Envigado, Colombia, y revisión de la literatura

open access: yesRevista Colombiana de Obstetricia y Ginecología, 2014
Objetivo: reportar un caso de vasa previa y hacer una revisión de la literatura en cuanto a la patogénesis, el diagnóstico ecográfico antenatal y el pronóstico perinatal de la misma. Materiales y métodos: se presenta el caso de una paciente de 44 años de
Óscar Alejandro Bonilla-Sepúlveda
doaj   +3 more sources

Impact of targeted scanning protocols on perinatal outcomes in pregnancies at risk of placenta accreta spectrum or vasa previa [PDF]

open access: yes, 2018
Background Placenta accreta spectrum and vasa previa (VP) are congenital disorders of placentation associated with high morbidity and mortality for both mothers and newborns when undiagnosed before delivery.
Betser, M   +6 more
core   +1 more source

Assisted Reproductive Technique and Abnormal Cord Insertion: A Systematic Review and Meta-Analysis

open access: yesBiomedicines, 2022
Abnormal cord insertion (ACI) is associated with adverse obstetric outcomes; however, the relationship between ACI and assisted reproductive technology (ART) has not been examined in a meta-analysis.
Shinya Matsuzaki   +11 more
doaj   +1 more source

Signal Knowledge Graph [PDF]

open access: yesarXiv, 2022
This paper presents an knowledge graph to assist in reasoning over signals for intelligence purposes. We highlight limitations of existing knowledge graphs and reasoning systems for this purpose, using inference of an attack using combined data from microphones, cameras and social media as an example. Rather than acting directly on the received signal,
arxiv  

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