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Revista Brasileira de Ginecologia e Obstetrícia. 2016;38(4):196-200
Cytomegalovirus (CMV) is the most common congenital viral infection, causing hearing, visual and psychomotor impairment. Preexisting maternal CMV immunity substantially reduces, but not eliminates, the risk of fetal infection and affectation. This article is about a case of nonprimary maternal CMV infection during pregnancy, with vertical transmission, resulting in severe fetal affectation. Preconceptional analysis indicated maternal CMV past infection. Pregnancy progressed uneventfully until the 20th week ultrasound (US), which revealed cerebral abnormalities: thin and hyperechogenic cerebral cortex with prominent lateral ventricles, bilateral periventricular hyperechogenicities, cerebellar vermis hypoplasia and absent corpus callosum. The MRI suggested these findings were compatible with congenital infection rather than primary brain malformation.
The fetal karyotype was normal. The title of CMV's IgG antibodies almost tripled. Since the first semester,analysisof the polymerasechainreaction(PCR)forCMVDNAintheamniotic fluid was negative. The pregnancy was terminatedat 23weeks. Neuropathologicalfindings at autopsy showed severe brain lesions associated with CMV infection.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2016;38(4):196-200
Cytomegalovirus (CMV) is the most common congenital viral infection, causing hearing, visual and psychomotor impairment. Preexisting maternal CMV immunity substantially reduces, but not eliminates, the risk of fetal infection and affectation. This article is about a case of nonprimary maternal CMV infection during pregnancy, with vertical transmission, resulting in severe fetal affectation. Preconceptional analysis indicated maternal CMV past infection. Pregnancy progressed uneventfully until the 20th week ultrasound (US), which revealed cerebral abnormalities: thin and hyperechogenic cerebral cortex with prominent lateral ventricles, bilateral periventricular hyperechogenicities, cerebellar vermis hypoplasia and absent corpus callosum. The MRI suggested these findings were compatible with congenital infection rather than primary brain malformation.
The fetal karyotype was normal. The title of CMV's IgG antibodies almost tripled. Since the first semester,analysisof the polymerasechainreaction(PCR)forCMVDNAintheamniotic fluid was negative. The pregnancy was terminatedat 23weeks. Neuropathologicalfindings at autopsy showed severe brain lesions associated with CMV infection.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2015;37(6):252-257
DOI 10.1590/SO100-720320150005278
To determine the feasibility of evaluation of the right subclavian artery during
the first trimester ultrasound scan, as well as to describe the technique for its
evaluation and, in case of aberrant right subclavian artery (ARSA) identification,
to determine its association with chromosomal abnormalities and/or cardiac
malformations and its management.
A prospective study for evaluation of the right subclavian artery during the
first trimester ultrasound scan (crown-to-rump length between 45 and 84 mm), in
all consecutive single pregnancies, by a single examiner, using a Voluson E8
system (GE Healthcare, Zipf, Austria) with a 2 to 8 MHz RAB 4-8-D transabdominal
probe, within a short period of time (less than 2 minutes), in a general low risk
population. Color and/or power Doppler flow mapping was used to classify the right
subclavian artery as normal or aberrant. Regression analysis with the IBM SPSS
Statistics software for Windows, version 20.0 was used to determine the
significance of the association between failure to examine/classify the right
subclavian artery and both fetal crown-rump length and maternal body mass index.
Median maternal age was 30 years (range: 17-43 years) and median gestational age
at the time of evaluation of the right subclavian artery was 12 weeks (range:
11-13 weeks). The evaluation of the right subclavian artery was successful in
138/176 (78.4%) of the cases. ARSA was diagnosed in a single case (0.7%). This
fetus with ARSA also presented a hyperechogenic focus on the left cardiac
ventricle. Fetal echocardiography at 16 weeks of gestation was performed and
confirmed ARSA and the hyperechogenic focus. Amniocentesis revealed a normal 46,
XX karyotype.
ARSA can be identified during a routine first trimester ultrasound scan. Our
single ARSA case had a normal karyotype and no associated cardiac
malformations.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2015;37(6):252-257
DOI 10.1590/SO100-720320150005278
To determine the feasibility of evaluation of the right subclavian artery during
the first trimester ultrasound scan, as well as to describe the technique for its
evaluation and, in case of aberrant right subclavian artery (ARSA) identification,
to determine its association with chromosomal abnormalities and/or cardiac
malformations and its management.
A prospective study for evaluation of the right subclavian artery during the
first trimester ultrasound scan (crown-to-rump length between 45 and 84 mm), in
all consecutive single pregnancies, by a single examiner, using a Voluson E8
system (GE Healthcare, Zipf, Austria) with a 2 to 8 MHz RAB 4-8-D transabdominal
probe, within a short period of time (less than 2 minutes), in a general low risk
population. Color and/or power Doppler flow mapping was used to classify the right
subclavian artery as normal or aberrant. Regression analysis with the IBM SPSS
Statistics software for Windows, version 20.0 was used to determine the
significance of the association between failure to examine/classify the right
subclavian artery and both fetal crown-rump length and maternal body mass index.
Median maternal age was 30 years (range: 17-43 years) and median gestational age
at the time of evaluation of the right subclavian artery was 12 weeks (range:
11-13 weeks). The evaluation of the right subclavian artery was successful in
138/176 (78.4%) of the cases. ARSA was diagnosed in a single case (0.7%). This
fetus with ARSA also presented a hyperechogenic focus on the left cardiac
ventricle. Fetal echocardiography at 16 weeks of gestation was performed and
confirmed ARSA and the hyperechogenic focus. Amniocentesis revealed a normal 46,
XX karyotype.
ARSA can be identified during a routine first trimester ultrasound scan. Our
single ARSA case had a normal karyotype and no associated cardiac
malformations.
