Search results for " Prenatal"
showing 10 items of 122 documents
Normal Doppler Reference Values of the Pericallosal Artery
2015
Purpose: To provide the normal reference values of the Doppler flow of the pericallosal artery in relation to gestational age from 18 to 41 weeks of gestation. Materials and Methods: The pericallosal artery (PCA) was studied in 466 normal pregnancies. The pulsed Doppler evaluation of the pericallosal artery was done in A3 and A4 segments, and records from PI, RI and Vmax were studied. Results: The resistance index of the pericallosal artery in A3 / A4 segments exhibits a plateau from 18 to 31 weeks of gestation. After 31 weeks, a marked decrease becomes apparent. The pulsatility index of the pericallosal artery in A3 / A4 segments shows a plateau until 36 weeks of gestation. During the fina…
ONE-TROCAR VIDEO-ASSISTED STRIPPING TECHNIQUE FOR USE IN THE TREATMENT OF LARGE OVARIAN CYSTS IN INFANTS
2010
Abstract Background Management of ovarian cysts in infants is controversial; it can be conservative or surgical, and the management is determined by the cyst's size and sonographic features. Methods A surgical approach using a 10-mm umbilically placed operative laparoscope was taken in 3 female infants with antenatally diagnosed large, simple ovarian cysts. The contents of the cysts were partially aspirated and the cyst walls were stripped off the remaining ovarian parenchyma. No intraoperative or postoperative complications were recorded. Conclusions The one-trocar video-assisted stripping technique for large ovarian cysts in infants appears to be an ovarian-tissue-preserving procedure, an…
Ovarian cysts in newborns.
2001
Before the introduction of ultrasonography (US), ovarian cysts in newborns were thought to be rare. With the extended use of real-time US, prenatal detection has increased. There is still considerable controversy regarding the best treatment of these neonatal findings. A total of 27 instances in 24 consecutive newborns of antenatally-diagnosed ovarian cysts were reviewed for US data, management, and outcome to assess the ante- and postnatal evolution of the cyst and establish appropriate therapy. The cysts detected during pregnancy were studied by repeated postnatal US studies. In 10 children (2 with bilateral cysts) the cyst evolved spontaneously toward regression. Fourteen patients were o…
Cell-Free Fetal DNA and Non-Invasive Prenatal Diagnosis of Chromosomopathies and Pediatric Monogenic Diseases: A Critical Appraisal and Medicolegal R…
2022
Cell-free fetal DNA (cffDNA) analysis is a non-invasive prenatal diagnostic test with a fundamental role for the screening of chromosomic or monogenic pathologies of the fetus. Its administration is performed by fetal DNA detection in the mother’s blood from the fourth week of gestation. Given the great interest regarding its validation as a diagnostic tool, the authors have set out to undertake a critical appraisal based on a wide-ranging narrative review of 45 total studies centered around such techniques. Both chromosomopathies and monogenic diseases were taken into account and systematically discussed and elucidated. Not surprisingly, cell-free fetal DNA analysis for screening purposes …
Dwurodzicielstwo: ojcostwo uczestniczące
2021
Social withdrawal behavior in infants with cleft lip and palate: the psychological impact of the malformation on parents and on parents-infant relati…
2017
La malformación de labio y paladar hendido (CL/P) es una de las malformaciones cráneo-faciales más frecuentes en humanos. Aunque esta condición médica no es una de las principales causas de mortalidad en los países desarrollados, conlleva una considerable morbilidad al paciente e impone una carga sustancial sobre la salud, la calidad de vida y el bienestar socioeconómico de los infantes y sus familias. En la actualidad, ningún protocolo genérico ha sido reconocido por toda la comunidad médica para el tratamiento de los infantes con CL/P y sus familias. Por tanto, cada paciente y su familia son atendidos dependiendo de la experiencia y la toma de decisiones del equipo médico. Además, el apoy…
Prenatalny okres życia człowieka
2020
Rozwój człowieka w prenatalnym okresie życia interesował ludzi już w czasach starożytności. I choć do dziś prowadzi się wiele dyskusji na temat początku ludzkiego życia, należy stwierdzić, że rozwój poczętego dziecka oraz jego kompetencje wskazują na to, że od początku swojego istnienia jest to osoba aktywna i samosterowalna, która czuje, zapamiętuje, uczy się, posiada pewien poziom świadomości. Radzi sobie z trudnościami hamującymi jego rozwój, przystosowuje do zmiennych warunków życia nie tylko wewnątrz-, ale i zewnątrzmacicznego, nabywa pewnych nawyków i przyzwyczajeń, reaguje w indywidualny, charakterystyczny dla siebie sposób
Ultrasound bioeffects in rats: quantification of cellular damage in the fetal liver after pulsed Doppler imaging
2011
Objective To determine whether pulsed Doppler examination of the ductus venosus in rat fetuses could damage exposed tissue. Methods On gestational day 18, the livers of a mean of approximately five fetuses per mother (n = 5.14, SD = 1.6), in a cohort of 35 pregnant female rats, were exposed individually to pulsed Doppler and these were considered the 'exposed group'. The remaining fetuses in each pregnant rat (n = 5.16, SD = 2.1) formed the 'control group'. We tested for 600, 300, 60, 20, 15, 10 and 3 s of exposure of the fetal ductus venosus and the damage was evaluated measuring a cell death index of apoptotic activity at 7 h post-exposure (n = 16). In addition, subgroups of mothers were …
Exposición prenatal a manganeso y a arsénico y efectos en el desarrollo neuropsicológico en niños y niñas participantes en la cohorte INMA
2022
Introducción: El manganeso (Mn) es un elemento esencial, indispensable para el desarrollo durante la etapa fetal. Por su parte, el arsénico (As) es un tóxico para el ser humano, siendo su forma inorgánica (iAs) la considerada más tóxica. La principal vía de exposición a ambos compuestos en población general es a través de la dieta. Una vez es absorbido, el iAs es biotransformado en ácido monometilarsónico (MMA) y ácido dimetilarsínico (DMA). Diversos estudios epidemiológicos han relacionado la exposición prenatal a estos metales con efectos adversos en el desarrollo neuropsicológico durante la infancia, aunque la evidencia actual no es concluyente. Además, la mayoría de estos estudios se ha…