Publications by authors named "Vlasin P"

Importance: Prenatal cardiac screening of the first and second trimesters has had a major impact on postnatal prevalence of congenital heart defects (CHDs), rates of termination of pregnancy (TOP), and outcomes among children born alive with CHDs.

Objective: To examine the prenatal and postnatal incidence of major CHDs (ie, necessitating intervention within the first year of life), detection rate trends, rates of TOP, and the association of cardiac screening with postnatal outcomes.

Design, Settings, And Participants: In this cross-sectional study, 3827 fetuses with antenatally diagnosed major CHDs in the Czech Republic (population 10.

View Article and Find Full Text PDF

We present a comprehensive review dealing with rare genetic skeletal disorders. More than 400 entities are included in the latest classification. The most severe or lethal phenotypes are identifiable in the prenatal period and the pregnancy can be terminated.

View Article and Find Full Text PDF

Objective: Noonan syndrome (NS), one of the most common RASopathies, has an estimated incidence of 1 in 1,000-2,500 live births. In the prenatal period increased nuchal translucency, hygroma colli, hydrops fetus, congenital heart disease, kidney defects, larger amount of amniotic fluid can be observed in affected fetuses with this syndrome. In the fetuses with normal karyotype and no microdeletion/microduplication syndromes the examination of selected genes for RASopathies was added.

View Article and Find Full Text PDF

We present our experience with four cases of fetal autopsies with abnormal prenatal ultrasound findings and suspicion of Noonan syndrome. These were fetuses from the 17th to the 24th age of gestation (GA). In all cases, prenatal ultrasound examination recorded increased nuchal translucency (NT) and presence of lymphatic neck sacs.

View Article and Find Full Text PDF

Background: The study analyzed the impact of first-trimester screening on the spectrum of congenital heart defects (CHDs) later in pregnancy and on the outcome of fetuses and children born alive with a CHD.

Methods: The spectrum of CHDs, associated comorbidities, and outcome of fetuses, either diagnosed with a CHD in the first trimester (Group I, 127 fetuses) or only in the second-trimester screening (Group II, 344 fetuses), were analyzed retrospectively between 2007 and 2013. Second-trimester fetuses diagnosed with a CHD between 2007 and 2013 were also compared with Group III (532 fetuses diagnosed with a CHD in the second trimester from 1996 to 2001, the period before first-trimester screening was introduced).

View Article and Find Full Text PDF

Hypertext atlas of fetal and neonatal pathology is a free resource for pregraduate students of medicine, pathologists and other health professionals dealing with prenatal medicine. The atlas can be found at http://www.muni.

View Article and Find Full Text PDF

Background: In this prospective study, we assessed the feasibility of fetal RH genotyping by analysis of DNA extracted from maternal plasma samples of alloimmunized pregnant women using real-time PCR and primers and probes targeted toward RHD (exon 7 and exon 10) and RHCE (intron 2 and exon 5) genes.

Methods: We analysed 23 alloimmunized pregnant women (16 anti-D, 5 anti-D + C, 2 anti-E) at risk of haemolytic disease of the newborn (HDN) within 11th and 37th week of pregnancy and correlated the results with serological analysis of cord blood.

Results And Conclusion: Detection of the presence of the RHD gene, the C and/or E alleles of the RHCE gene in maternal plasma samples is highly accurate and enables implementation in a clinical diagnostic algorithm for following pregnancies at risk for HDN.

View Article and Find Full Text PDF

Obstructive uropathy was diagnosed in a fetus in the 31st week of gestation. Good renal functioning and a low L/S index (lecithin/sphingomyelin) in amniotic fluid having been found, a vesocoamniotic shunt was inserted percutaneously. Draining through the shunt lasted for three weeks; then the gravidity was terminated due to stent dislocation while the lung maturity was good.

View Article and Find Full Text PDF