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1.
Int J Mol Sci ; 25(5)2024 Feb 24.
Artigo em Inglês | MEDLINE | ID: mdl-38473883

RESUMO

Congenital cytomegalovirus (CMV) infection is the main cause of non-hereditary sensorineural hearing loss (SNHL). In order to shed light on SNHL pathophysiology, we examined the auditory pathway in CMV-infected fetuses; the temporal lobe, in particular the auditory cortex, and the inner ear. We investigated both inner ears and temporal lobes of 20 human CMV-infected fetuses at 21 weeks of gestation. As a negative group, five fetuses from spontaneous miscarriages without CMV infection were studied. Inner ears and temporal lobes were histologically examined, immunohistochemistry for CMV and CMV-PCR were performed. On the auditory cortex, we evaluated the local microglial reaction to the infection. CMV-positive cells were found in 14/20 brains and the damage was classified as severe, moderate, or mild, according to histological features. Fetuses with severe brain damage had a statistically higher temporal lobe viral load and a higher number of activated microglial cells in the auditory cortex compared to fetuses with mild brain damage (p: 0.01; p: 0.01). In the inner ears, the marginal cells of the stria vascularis were the most CMV positive. In our study, CMV affected the auditory pathway, suggesting a tropism for this route. In addition, in the auditory cortex, microglial activation may favor further tissue damage contributing to hearing loss.


Assuntos
Infecções por Citomegalovirus , Perda Auditiva Neurossensorial , Humanos , Citomegalovirus , Vias Auditivas/patologia , Perda Auditiva Neurossensorial/etiologia , Feto/patologia
2.
Cell Mol Neurobiol ; 43(3): 1385-1399, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35933637

RESUMO

Human cytomegalovirus (HCMV) causes congenital neurological lifelong disabilities. To date, the neuropathogenesis of brain injury related to congenital HCMV (cCMV) infection is poorly understood. This study evaluates the characteristics and pathogenetic mechanisms of encephalic damage in cCMV infection. Ten HCMV-infected human fetuses at 21 weeks of gestation were examined. Specifically, tissues from different brain areas were analyzed by: (i) immunohistochemistry (IHC) to detect HCMV-infected cell distribution, (ii) hematoxylin-eosin staining to evaluate histological damage and (iii) real-time PCR to quantify tissue viral load (HCMV-DNA). The differentiation stage of HCMV-infected neural/neuronal cells was assessed by double IHC to detect simultaneously HCMV-antigens and neural/neuronal markers: nestin (a marker of neural stem/progenitor cells), doublecortin (DCX, marker of cells committed to the neuronal lineage) and neuronal nuclei (NeuN, identifying mature neurons). HCMV-positive cells and viral DNA were found in the brain of 8/10 (80%) fetuses. For these cases, brain damage was classified as mild (n = 4, 50%), moderate (n = 3, 37.5%) and severe (n = 1, 12.5%) based on presence and frequency of pathological findings (necrosis, microglial nodules, microglial activation, astrocytosis, and vascular changes). The highest median HCMV-DNA level was found in the hippocampus (212 copies/5 ng of human DNA [hDNA], range: 10-7,505) as well as the highest mean HCMV-infected cell value (2.9 cells, range: 0-23), followed by that detected in subventricular zone (1.7 cells, range: 0-19). These findings suggested a preferential viral tropism for both neural stem/progenitor cells and neuronal committed cells, residing in these regions, confirmed by the expression of DCX and nestin in 94% and 63.3% of HCMV-positive cells, respectively. NeuN was not found among HCMV-positive cells and was nearly absent in the brain with severe damage, suggesting HCMV does not infect mature neurons and immature neural/neuronal cells do not differentiate into neurons. This could lead to known structural and functional brain defects from cCMV infection.


Assuntos
Lesões Encefálicas , Infecções por Citomegalovirus , Humanos , Nestina/metabolismo , Tropismo Viral , Infecções por Citomegalovirus/metabolismo , Infecções por Citomegalovirus/patologia , Citomegalovirus/genética , Citomegalovirus/metabolismo , Encéfalo/metabolismo
3.
Eur J Pediatr ; 182(10): 4467-4476, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37490110

RESUMO

This study aims to assess the impact of time of onset and features of early foetal growth restriction (FGR) with absent end-diastolic flow (AEDF) on pregnancy outcomes and on preterm infants' clinical and neurodevelopmental outcomes up to 2 years corrected age. This is a retrospective, cohort study led at a level IV Obstetric and Neonatal Unit in Bologna, Italy. Pregnant women were eligible if having singleton pregnancies, with no major foetal anomaly detected, and diagnosed with early FGR + AEDF (defined as FGR + AEDF detected before 32 weeks gestation). Early FGR + AEDF was further classified according to time of onset and specific features into very early and persistent (VEP, FGR + AEDF first detected at 20-24 weeks gestation and persistent at the following scans), very early but transient (VET, FGR + AEDF detected at 20-24 weeks gestation and progressively improving at the following scans) and later (LA, FGR + AEDF detected between 25 and 32 weeks gestation). Pregnancy and neonatal outcomes and infant follow-up data were collected and compared among groups. Neurodevelopment was assessed using the revised Griffiths Mental Developmental Scales (GMDS-R) 0-2 years. A regression analysis was performed to identify early predictors of preterm infants' neurodevelopmental impairment. Fifty-two pregnant women with an antenatal diagnosis of early FGR + AEDF were included in the study (16 VEP, 14 VET, 22 LA). Four intrauterine foetal deaths occurred, all in the VEP group (p = 0.010). Compared to LA infants, VEP infants were born with lower gestational age and lower birth weight, had lower arterial cord blood pH and were at higher risk for intraventricular haemorrhage and periventricular leukomalacia (p < 0.05 for all comparisons). At 12 months, VEP infants had worse GMDS-R scores, both in the general quotient (mean [SD] 91.8 [12.4] vs 104.6 [8.7] in LA) and in the performance domain (mean [SD] 93.3 [15.4] vs 108.8 [8.8] in LA). This latter difference persisted at 24 months (mean [SD] 68.3 [17.0] vs 92.9 [17.7] in LA). In multivariate analysis, at 12 months corrected age, PVL was found to be an independent predictor of impaired general quotient, while the features and timing of antenatal Doppler alterations predicted worse scores in the performance domain.   Conclusion: Timing of onset and features of early FGR + AEDF might impact differently on neonatal clinical and neurodevelopmental outcomes. Shared awareness of the importance of FGR + AEDF features between obstetricians and neonatologists may offer valuable tools for antenatal counselling and for tailoring pregnancy management and neonatal follow-up in light of specific antenatal and neonatal risk factors. What is Known: • Foetal growth restriction (FGR), together with antenatal umbilical Doppler abnormalities, is known to affect maternal and neonatal outcomes. • Infants born preterm and growth-restricted face the highest risk for neurodevelopmental impairment, especially when FGR occurs early during pregnancy (early FGR, before 32 weeks gestation). What is New: • The timing of onset and features of FGR and antenatal umbilical Doppler abnormalities impact differently on maternal and neonatal outcomes; when FGR and Doppler abnormalities occur very early, at the limit of neonatal viability, and persist until delivery, infants face the highest risk for neurodevelopmental impairment. • Shared knowledge between obstetricians and neonatologists about timing of onset and features of FGR would provide a valuable tool for informed antenatal counselling in high-risk pregnancies.


Assuntos
Retardo do Crescimento Fetal , Recém-Nascido Prematuro , Lactente , Gravidez , Feminino , Recém-Nascido , Humanos , Retardo do Crescimento Fetal/diagnóstico , Estudos de Coortes , Estudos Retrospectivos , Artérias Umbilicais/diagnóstico por imagem , Idade Gestacional , Ultrassonografia Pré-Natal
4.
Eur J Clin Microbiol Infect Dis ; 41(3): 505-509, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34999975

RESUMO

Among 733 pregnant women with HIV followed between 2013 and 2021, only 8 (1.1%) had prior HPV vaccination. One had low-grade squamous intraepithelial lesions [LSIL], and none had HPV type information. Among the 725 non-vaccinated women, 578 (79.7%) had information on cervical cytology. Rate of cytologic abnormalities in this group was 20.6% (0.2% atypical glandular cells of undetermined significance [AGC], 1.7% atypical squamous cells of undetermined significance [ASC-US], 11.1% LSIL, and 7.6% high-grade squamous intraepithelial lesions [HSIL]). Among 56 women with HPV type information, 75.0% carried high risk types, with similar occurrence in women with and without cytologic abnormalities, 30.4% had multiple high-risk types, and 75.9% carried at least one of the types included in the currently recommended 9-valent vaccine.


Assuntos
Infecções por HIV , Infecções por Papillomavirus , Neoplasias do Colo do Útero , Feminino , Infecções por HIV/epidemiologia , Humanos , Papillomaviridae/genética , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Gravidez , Gestantes , Prevalência , Vacinação
5.
J Infect Dis ; 221(Suppl 1): S74-S85, 2020 03 05.
Artigo em Inglês | MEDLINE | ID: mdl-32134488

RESUMO

Human cytomegalovirus (HCMV) infections are among the most common complications arising in transplant patients, elevating the risk of various complications including loss of graft and death. HCMV infections are also responsible for more congenital infections worldwide than any other agent. Congenital HCMV (cCMV) infections are the leading nongenetic cause of sensorineural hearing loss and a source of significant neurological disabilities in children. While there is overlap in the clinical and laboratory approaches to diagnosis of HCMV infections in these settings, the management, follow-up, treatment, and diagnostic strategies differ considerably. As yet, no country has implemented a universal screening program for cCMV. Here, we summarize the issues, limitations, and application of diagnostic strategies for transplant recipients and congenital infection, including examples of screening programs for congenital HCMV that have been implemented at several centers in Japan, Italy, and the United States.


Assuntos
Infecções por Citomegalovirus/diagnóstico , Infecções por Citomegalovirus/etiologia , Citomegalovirus , Testes Diagnósticos de Rotina , Algoritmos , Tomada de Decisão Clínica , Citomegalovirus/genética , Citomegalovirus/imunologia , Infecções por Citomegalovirus/transmissão , Testes Diagnósticos de Rotina/métodos , Gerenciamento Clínico , Feminino , Interações Hospedeiro-Patógeno , Humanos , Recém-Nascido , Transmissão Vertical de Doenças Infecciosas , Técnicas de Diagnóstico Molecular , Triagem Neonatal , Transplante de Órgãos/efeitos adversos , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/etiologia , Diagnóstico Pré-Natal
6.
Am J Obstet Gynecol ; 223(1): 36-41, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32311350

RESUMO

OBJECTIVE: This study aimed to conduct a systematic review of the clinical outcomes reported for pregnant patients with coronavirus disease 2019. DATA SOURCES: The PubMed, CINAHL, and Scopus databases were searched using a combination of key words such as "Coronavirus and/or pregnancy," "COVID and/or pregnancy," "COVID disease and/or pregnancy," and "COVID pneumonia and/or pregnancy." There was no restriction of language to allow collection of as many cases as possible. STUDY ELIGIBILITY CRITERIA: All studies of pregnant women who received a coronavirus disease 2019 diagnosis using acid nucleic test, with reported data about pregnancy, and, in case of delivery, reported outcomes, were included. STUDY APPRAISAL AND SYNTHESIS METHODS: All the studies included have been evaluated according to the tool for evaluating the methodological quality of case reports and case series described by Murad et al. RESULTS: Six studies that involved 51 pregnant women were eligible for the systematic review. At the time of the report, 3 pregnancies were ongoing; of the remaining 48 pregnant women, 46 gave birth by cesarean delivery, and 2 gave birth vaginally; in this study, 1 stillbirth and 1 neonatal death were reported. CONCLUSION: Although vertical transmission of severe acute respiratory syndrome coronavirus 2 infection has been excluded thus far and the outcome for mothers and neonates has been generally good, the high rate of preterm delivery by cesarean delivery is a reason for concern. Cesarean delivery was typically an elective surgical intervention, and it is reasonable to question whether cesarean delivery for pregnant patients with coronavirus disease 2019 was warranted. Coronavirus disease 2019 associated with respiratory insufficiency in late pregnancies certainly creates a complex clinical scenario.


Assuntos
Infecções por Coronavirus/diagnóstico , Pneumonia Viral/diagnóstico , Complicações Infecciosas na Gravidez/virologia , Adulto , Betacoronavirus , COVID-19 , Cesárea , Infecções por Coronavirus/complicações , Feminino , Humanos , Recém-Nascido , Transmissão Vertical de Doenças Infecciosas , Pandemias , Pneumonia Viral/complicações , Gravidez , Resultado da Gravidez , SARS-CoV-2
7.
J Perinat Med ; 48(9): 950-958, 2020 11 26.
Artigo em Inglês | MEDLINE | ID: mdl-32975205

RESUMO

Objectives To evaluate the strength of association between maternal and pregnancy characteristics and the risk of adverse perinatal outcomes in pregnancies with laboratory confirmed COVID-19. Methods Secondary analysis of a multinational, cohort study on all consecutive pregnant women with laboratory-confirmed COVID-19 from February 1, 2020 to April 30, 2020 from 73 centers from 22 different countries. A confirmed case of COVID-19 was defined as a positive result on real-time reverse-transcriptase-polymerase-chain-reaction (RT-PCR) assay of nasal and pharyngeal swab specimens. The primary outcome was a composite adverse fetal outcome, defined as the presence of either abortion (pregnancy loss before 22 weeks of gestations), stillbirth (intrauterine fetal death after 22 weeks of gestation), neonatal death (death of a live-born infant within the first 28 days of life), and perinatal death (either stillbirth or neonatal death). Logistic regression analysis was performed to evaluate parameters independently associated with the primary outcome. Logistic regression was reported as odds ratio (OR) with 95% confidence interval (CI). Results Mean gestational age at diagnosis was 30.6±9.5 weeks, with 8.0% of women being diagnosed in the first, 22.2% in the second and 69.8% in the third trimester of pregnancy. There were six miscarriage (2.3%), six intrauterine device (IUD) (2.3) and 5 (2.0%) neonatal deaths, with an overall rate of perinatal death of 4.2% (11/265), thus resulting into 17 cases experiencing and 226 not experiencing composite adverse fetal outcome. Neither stillbirths nor neonatal deaths had congenital anomalies found at antenatal or postnatal evaluation. Furthermore, none of the cases experiencing IUD had signs of impending demise at arterial or venous Doppler. Neonatal deaths were all considered as prematurity-related adverse events. Of the 250 live-born neonates, one (0.4%) was found positive at RT-PCR pharyngeal swabs performed after delivery. The mother was tested positive during the third trimester of pregnancy. The newborn was asymptomatic and had negative RT-PCR test after 14 days of life. At logistic regression analysis, gestational age at diagnosis (OR: 0.85, 95% CI 0.8-0.9 per week increase; p<0.001), birthweight (OR: 1.17, 95% CI 1.09-1.12.7 per 100 g decrease; p=0.012) and maternal ventilatory support, including either need for oxygen or CPAP (OR: 4.12, 95% CI 2.3-7.9; p=0.001) were independently associated with composite adverse fetal outcome. Conclusions Early gestational age at infection, maternal ventilatory supports and low birthweight are the main determinants of adverse perinatal outcomes in fetuses with maternal COVID-19 infection. Conversely, the risk of vertical transmission seems negligible.


Assuntos
Aborto Espontâneo/epidemiologia , Betacoronavirus , Infecções por Coronavirus/complicações , Morte Fetal , Morte Perinatal , Pneumonia Viral/complicações , Complicações Infecciosas na Gravidez/virologia , Betacoronavirus/genética , Betacoronavirus/isolamento & purificação , COVID-19 , Teste para COVID-19 , Vacinas contra COVID-19 , Técnicas de Laboratório Clínico , Estudos de Coortes , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Pandemias , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Resultado da Gravidez , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Fatores de Risco , SARS-CoV-2
8.
Subst Use Misuse ; 55(7): 1165-1172, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32100603

RESUMO

Background: Few studies have evaluated in pregnant women with HIV the prevalence of smoking and its associations with maternal and neonatal outcomes. Objectives: to assess the prevalence of smoking among women with HIV in early pregnancy and the association between smoking and pregnancy outcomes in this particular population. Methods: We used data from a multicenter observational study to define the prevalence of smoking in women with HIV in early pregnancy, and the role of smoking status and intensity as risk factors for adverse maternal and neonatal outcomes. Main outcome measures were fetal growth restriction [FGR], preterm delivery [PD] and low birthweight [LB], evaluated in univariate and multivariate analyses. Results: The overall (2001-2018) prevalence of reported smoking (at least one cigarette/day) was 25.6% (792/3097), with a significant decrease in recent years (19.0% in 2013-2018). Women who smoked were less commonly African, had lower body mass index, older age, a longer history of HIV infection and higher CD4 counts. In univariate analyses, smokers were significantly more likely to have PD, LB, FGR and detectable HIV viral load at third trimester. Multivariable analyses confirmed for smokers a significantly higher risk of LB (adjusted odds ratio [AOR]: 1.69, 95%CI 1.22-2.34) and FGR (AOR 1.88, 95%CI 1.27-2.80), while the associations with detectable HIV and PD were not maintained. Conclusions: The common prevalence of smoking among pregnant women with HIV and its association with adverse outcomes indicates that smoking cessation programs in this population may have a significant impact on neonatal and maternal health.


Assuntos
Infecções por HIV/epidemiologia , Gestantes , Fumar/epidemiologia , Adulto , Peso ao Nascer , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Itália/epidemiologia , Masculino , Gravidez , Resultado da Gravidez , Prevalência , Prevenção do Hábito de Fumar
10.
Infection ; 47(6): 981-990, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31286456

RESUMO

PURPOSE: To evaluate the maternal and neonatal safety of vaginal delivery in women with HIV following the implementation of a national protocol in Italy. METHODS: Vaginal delivery was offered to all eligible women who presented antenatally at twelve participating clinical sites. Data collection and definition of outcomes followed the procedures of the National Program on Surveillance on Antiretroviral Treatment in Pregnancy. Pregnancy outcomes were compared according to the mode of delivery, classified as vaginal, elective cesarean (ECS) and non-elective cesarean section (NECS). RESULTS: Among 580 women who delivered between January 2012 and September 2017, 142 (24.5%) had a vaginal delivery, 323 (55.7%) had an ECS and 115 (19.8%) had an NECS. The proportion of vaginal deliveries increased significantly over time, from 18.9% in 2012 to 35.3% in 2017 (p < 0.001). Women who delivered vaginally were younger, more commonly nulliparous, diagnosed with HIV during current pregnancy, and antiretroviral-naïve, but had a slightly longer duration of pregnancy, with significantly higher birthweight of newborns. NECS was associated with adverse pregnancy outcomes. The rate of HIV transmission was minimal (0.4%). There were no differences between vaginal and ECS about delivery complications, while NECS was more commonly associated with complications compared to ECS. CONCLUSIONS: Vaginal delivery in HIV-infected women with suppressed viral load appears to be safe for mother and children. No cases of HIV transmission were observed. Despite an ongoing significant increase, the rate of vaginal delivery remains relatively low compared to other countries, and further progress is needed to promote this mode of delivery in clinical practice.


Assuntos
Cesárea/estatística & dados numéricos , Parto Obstétrico/estatística & dados numéricos , Infecções por HIV/virologia , Carga Viral , Adulto , Feminino , Humanos , Itália , Adulto Jovem
11.
Fetal Diagn Ther ; 45(2): 111-117, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29684915

RESUMO

BACKGROUND: The Congenital Human Cytomegalovirus Infection Prevention (CHIP) study, a randomized, blinded, placebo-controlled trial, demonstrated that the efficacy of hyperimmune globulin (HIG) was not different from that of placebo regarding transmission of cytomegalovirus (CMV) from mothers to newborns. Our aim was to analyze histologically HIG effects on placentas collected for the CHIP study. MATERIALS AND METHODS: Virological and histological analyses were performed on 40 placentas from transmitter and nontransmitter HIG-treated and untreated mothers by assessing the number of CMV-positive cells, tissue viral load, tissue damage, and compensatory mechanisms. RESULTS: The HIG and placebo groups showed no significant differences in the number of CMV-positive cells (median number in 10 fields at 10 high-power fields: 2.5 vs. 2, p = 0.969) and viral load (median load: 5 copies/5 ng vs. 10.5 copies/5 ng, p = 0.874). Regarding histological examination, the scores of parameters related to tissue damage and hypoxic parenchymal compensation were higher in transmitters except for chorangiosis, with statistically significant differences observed for chronic villitis (p = 0.007), calcification (p = 0.011), and the total score of tissue damage (p < 0.001). The HIG and placebo groups showed no significant differences for all tissue damage and compensation parameters and overall scores. DISCUSSION: HIGs are not able to reduce placental viral load and histological damage, which was significantly associated only with infection.


Assuntos
Infecções por Citomegalovirus/transmissão , Imunoglobulinas Intravenosas/uso terapêutico , Placenta/virologia , Complicações Infecciosas na Gravidez/virologia , Citomegalovirus/imunologia , Infecções por Citomegalovirus/prevenção & controle , Infecções por Citomegalovirus/terapia , Feminino , Humanos , Imunoterapia , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Placenta/patologia , Gravidez , Carga Viral
12.
J Neurol Neurosurg Psychiatry ; 89(9): 983-988, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29549194

RESUMO

OBJECTIVES: To assess the prevalence of antiepileptic drug (AED) exposure in pregnant women and the comparative risk of terminations of pregnancy (TOPs), spontaneous abortions, stillbirths, major birth defects (MBDs), neonatal distress and small for gestational age (SGA) infants following intrauterine AED exposure in the Emilia Romagna region, Italy (4 459 246 inhabitants on 31 December 2011). METHODS: We identified all deliveries and hospitalised abortions in Emilia Romagna in the period 2009-2011 from the certificate of delivery assistance registry (Certificato di Assistenza al Parto- CedAP) and the hospital discharge card registry, exposure to AEDs from the reimbursed drug prescription registries, MBDs from the regional registry of congenital malformations, and Apgar scores and cases of SGA from the CedAP. Records from different registries were linked. RESULTS: We identified 145 243 pregnancies: 111 284 deliveries, 16 408 spontaneous abortions and 17 551 TOPs. Six hundred and eleven pregnancies (0.42%; 95% Cl 0.39 to 0.46) were exposed to AEDs. In the AED-exposed group 21% of pregnancies ended in TOPs vs 12% in the non-exposed women (OR: 2.24; 95% CI 1.41 to 3.56). Rates of spontaneous abortions, stillbirths, neonatal distress and SGA were comparable. Three hundred and fifty-three babies (0.31%; 95% CI 0.28 to 0.35) were exposed to AEDs during the first trimester. MBD rates were 2.3% in the exposed vs 2.0% in the non-exposed pregnancies (OR: 1.12, 95% CI 0.55 to 2.55). CONCLUSION: The Emilia Romagna prevalence of AED exposure in pregnancy was 0.42%, comparable with previous European studies. Rates of spontaneous abortions, stillbirths, neonatal distress, SGA and MBDs following AED exposure were not significantly increased. The rate of TOPs was significantly higher in the AED-exposed women.


Assuntos
Anticonvulsivantes/uso terapêutico , Epilepsia/tratamento farmacológico , Doenças do Recém-Nascido/epidemiologia , Complicações na Gravidez/tratamento farmacológico , Epilepsia/epidemiologia , Feminino , Humanos , Recém-Nascido , Itália/epidemiologia , Masculino , Gravidez , Complicações na Gravidez/epidemiologia , Resultado da Gravidez , Estudos Retrospectivos
13.
Fetal Diagn Ther ; 43(4): 291-296, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28715806

RESUMO

OBJECTIVE: To evaluate the efficiency of real-time volume contrast imaging in the A plane (VCI-A) of fetal extremities, compared with conventional two-dimensional ultrasound (2D). METHODS: This was a randomized controlled trial of 100 patients undergoing midtrimester sonography. The fetal limbs were imaged with either 2D or VCI-A with a four-dimensional (4D) electronic probe. Time required for the examination, number of images stored, and quality of the documentation were compared. During the study, 6 fetuses with abnormal extremities were scanned with both 2D and VCI-A, and the diagnostic accuracy and quality of the images were also compared. RESULTS: In the VCI-A group, the fetal extremities were imaged more rapidly (2.3 ± 1.1 vs. 3.3 ± 0.9 min, p < 0.0001), less images were required to document the examination (5.6 ± 1.4 vs. 7.3 ± 1.6), and an optimal documentation was more frequently obtained (84 vs. 54%, p < 0.0001) compared with the 2D group. In malformed fetuses, a precise diagnosis was achieved with both techniques, although images obtained with VCI-A were found to be of superior quality. CONCLUSIONS: Real-time VCI-A with a 4D electronic probe is an effective tool for imaging the fetal extremities in midtrimester examinations and carries some advantages over conventional 2D sonography.


Assuntos
Imageamento Tridimensional/métodos , Deformidades Congênitas dos Membros/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Pé Torto Equinovaro/diagnóstico por imagem , Feminino , Humanos , Gravidez , Segundo Trimestre da Gravidez
14.
Fetal Diagn Ther ; 43(2): 138-142, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28697499

RESUMO

OBJECTIVE: To evaluate perinatal outcomes in case of non-primary maternal cytomegalovirus (CMV) infection. METHODS: We performed a retrospective cohort study of pregnant women with active CMV infection referred to our unit over a 15-year period (January 2000 to December 2014). Non-primary infection was diagnosed on the basis of the results of confirmatory serological and virological tests (avidity test, immunoblotting, real-time PCR-DNA). The vertical transmission rate and the percentage of symptomatic congenital infection were determined in this group of patients. RESULTS: A total of 205 pregnant women were enrolled. Congenital infection occurred in 7 (3.4%) fetuses/neonates. Symptomatic disease was present at birth in 3 of the 7 congenitally infected neonates (1.5%). Two out of 3 symptomatic newborns presented a pathologic second-trimester ultrasound scan. CONCLUSION: Maternal immunity offers substantial protection against intrauterine transmission of CMV infection, but not against disease once the fetus is infected.


Assuntos
Infecções por Citomegalovirus/diagnóstico por imagem , Citomegalovirus , Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez/diagnóstico por imagem , Ultrassonografia Pré-Natal/tendências , Estudos de Coortes , Citomegalovirus/isolamento & purificação , Infecções por Citomegalovirus/epidemiologia , Feminino , Seguimentos , Humanos , Recém-Nascido , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
15.
Clin Infect Dis ; 64(2): 207-210, 2017 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-27986666

RESUMO

BACKGROUND: Human Cytomegalovirus (HCMV) is the most common cause of childhood hearing loss and can lead to neurodevelopmental delay. To date, few studies have examined the correlation between maternal viremia and congenital HCMV infection. The aim of our study was to ascertain if HCMV DNA in the peripheral blood of pregnant women with primary HCMV infection at the time of amniocentesis may have a prognostic value in terms of congenital infection and neonatal symptomatic disease. METHODS: We performed a prospective observational study of pregnant women referred to our maternal-fetal medicine division with suspected HCMV infection. Primary infection was diagnosed based on seroconversion for HCMV and/or HCMV immunoglobulin M-positive and low or moderate HCMV immunoglobulin G avidity. At the time of amniocentesis, maternal blood samples were collected and analyzed by means of real-time polymerase chain reaction to determine the presence of viral DNAemia. Fetuses and newborns were evaluated for the presence of congenital infection and symptomatic disease. RESULTS: A total of 239 pregnant women were enrolled; 32 blood samples (13.4%) were positive, and 207 (86.6%) were negative for HCMV DNA. The overall rate of transmission was 23.4%. Fifteen infected patients (26.8%) were symptomatic. Vertical transmission occurred in 14 women (43.8%) with positive and 42 (20.3%) with negative results for HCMV DNAemia (P = .006; odds ratio, 3.06; 95% confidence interval, 1.41-6.64). Symptomatic infection occurred in 6 (42.9%) infected fetuses or newborns from women with and in 9 (21.4%) from women without viral DNAemia (P = .16). CONCLUSION: Maternal viremia at amniocentesis is associated with a 3-fold greater chance of congenital infection, but it is not correlated with symptomatic disease.


Assuntos
Amniocentese , Infecções por Citomegalovirus/transmissão , Infecções por Citomegalovirus/virologia , Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez , Viremia/virologia , Anticorpos Antivirais/sangue , Anticorpos Antivirais/imunologia , Citomegalovirus/imunologia , Infecções por Citomegalovirus/diagnóstico , Infecções por Citomegalovirus/mortalidade , DNA Viral , Feminino , Humanos , Recém-Nascido , Razão de Chances , Gravidez , Prognóstico , Estudos Prospectivos , Carga Viral
16.
Am J Obstet Gynecol ; 217(6): 633-641, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28743440

RESUMO

Fetal malpositions and cephalic malpresentations are well-recognized causes of failure to progress in labor. They frequently require operative delivery, and are associated with an increased probability of fetal and maternal complications. Traditional obstetrics emphasizes the role of digital examinations, but recent studies demonstrated that this approach is inaccurate and intrapartum ultrasound is far more precise. The objective of this review is to summarize the current body of literature and provide recommendations to identify malpositions and cephalic malpresentations with ultrasound. We propose a systematic approach consisting of a combination of transabdominal and transperineal scans and describe the findings that allow an accurate diagnosis of normal and abnormal position, flexion, and synclitism of the fetal head. The management of malpositions and cephalic malpresentation is currently a matter of debate, and individualized depending on the general clinical picture and expertise of the provider. Intrapartum sonography allows a precise diagnosis and therefore offers the best opportunity to design prospective studies with the aim of establishing evidence-based treatment. The article is accompanied by a video that demonstrates the sonographic technique and findings.


Assuntos
Distocia/diagnóstico por imagem , Apresentação no Trabalho de Parto , Complicações do Trabalho de Parto/diagnóstico por imagem , Parto Obstétrico , Distocia/etiologia , Extração Obstétrica , Feminino , Humanos , Gravidez , Ultrassonografia Pré-Natal
17.
Am J Obstet Gynecol ; 216(5): 525.e1-525.e12, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28153662

RESUMO

BACKGROUND: Antiphospholipid syndrome is an autoimmune, hypercoagulable state that is caused by antiphospholipid antibodies. Anticardiolipin antibodies, anti-ß2 glycoprotein-I, and lupus anticoagulant are the main autoantibodies found in antiphospholipid syndrome. Despite the amassed body of clinical knowledge, the risk of obstetric complications that are associated with specific antibody profile has not been well-established. OBJECTIVE: The purpose of this study was to assess the risk of obstetric complications in women with primary antiphospholipid syndrome that is associated with specific antibody profile. STUDY DESIGN: The Pregnancy In Women With Antiphospholipid Syndrome study is a multicenter, retrospective, cohort study. Diagnosis and classification of antiphospholipid syndrome were based on the 2006 International revised criteria. All women included in the study had at least 1 clinical criteria for antiphospholipid syndrome, were positive for at least 1 antiphospholipid antibody (anticardiolipin antibodies, anti-ß2 glycoprotein-I, and/or lupus anticoagulant), and were treated with low-dose aspirin and prophylactic low molecular weight heparin from the first trimester. Only singleton pregnancies with primary antiphospholipid syndrome were included. The primary outcome was live birth, defined as any delivery of a live infant after 22 weeks gestation. The secondary outcomes were preeclampsia with and without severe features, intrauterine growth restriction, and stillbirth. We planned to assess the outcomes that are associated with the various antibody profile (test result for lupus anticoagulant, anticardiolipin antibodies, and anti-ß2 glycoprotein-I). RESULTS: There were 750 singleton pregnancies with primary antiphospholipid syndrome in the study cohort: 54 (7.2%) were positive for lupus anticoagulant only; 458 (61.0%) were positive for anticardiolipin antibodies only; 128 (17.1%) were positive for anti-ß2 glycoprotein-I only; 90 (12.0%) were double positive and lupus anticoagulant negative, and 20 (2.7%) were triple positive. The incidence of live birth in each of these categories was 79.6%, 56.3%, 47.7%, 43.3%, and 30.0%, respectively. Compared with women with only 1 antibody positive test results, women with multiple antibody positive results had a significantly lower live birth rate (40.9% vs 56.6%; adjusted odds ratio, 0.71; 95% confidence interval, 0.51-0.90). Also, they were at increased risk of preeclampsia without (54.5% vs 34.8%; adjusted odds ratio, 1.56; 95% confidence interval, 1.22-1.95) and with severe features (22.7% vs 13.8%, adjusted odds ratio, 1.66; 95% confidence interval, 1.19-2.49), of intrauterine growth restriction (53.6% vs 40.8%; adjusted odds ratio, 2.31; 95% confidence interval, 1.17-2.61) and of stillbirth (36.4% vs 21.7%; adjusted odds ratio, 2.67; 95% confidence interval, 1.22-2.94). In women with only 1 positive test result, women with anti-ß2 glycoprotein-I positivity present alone had a significantly lower live birth rate (47.7% vs 56.3% vs 79.6%; P<.01) and a significantly higher incidence of preeclampsia without (47.7% vs 34.1% vs 11.1%; P<.01) and with severe features (17.2% vs 14.4% vs 0%; P=.02), intrauterine growth restriction (48.4% vs 40.1% vs 25.9%; P<.01), and stillbirth (29.7% vs 21.2% vs 7.4%; P<.01) compared with women with anticardiolipin antibodies and with women with lupus anticoagulant present alone, respectively. In the group of women with >1 antibody positivity, triple-positive women had a lower live birth rate (30% vs 43.3%; adjusted odds ratio,0.69; 95% confidence interval, 0.22-0.91) and a higher incidence of intrauterine growth restriction (70.0% vs 50.0%; adjusted odds ratio,2.40; 95% confidence interval, 1.15-2.99) compared with double positive and lupus anticoagulant negative women. CONCLUSION: In singleton pregnancies with primary antiphospholipid syndrome, anticardiolipin antibody is the most common sole antiphospholipid antibody present, but anti-ß2 glycoprotein-I is the one associated with the lowest live birth rate and highest incidence of preeclampsia, intrauterine growth restriction, and stillbirth, compared with the presence of anticardiolipin antibodies or lupus anticoagulant alone. Women with primary antiphospholipid syndrome have an increased risk of obstetric complications and lower live birth rate when <1 antiphospholipid antibody is present. Despite therapy with low-dose aspirin and prophylactic low molecular weight heparin, the chance of a liveborn neonate is only 30% for triple-positive women.


Assuntos
Anticorpos Antifosfolipídeos/sangue , Síndrome Antifosfolipídica/epidemiologia , Complicações na Gravidez/sangue , Adulto , Anticoagulantes/uso terapêutico , Síndrome Antifosfolipídica/diagnóstico , Aspirina/uso terapêutico , Estudos de Coortes , Feminino , Retardo do Crescimento Fetal/epidemiologia , Heparina de Baixo Peso Molecular , Humanos , Itália/epidemiologia , Nascido Vivo/epidemiologia , Inibidores da Agregação Plaquetária/uso terapêutico , Pré-Eclâmpsia/epidemiologia , Gravidez , Complicações na Gravidez/epidemiologia , Estudos Retrospectivos , Natimorto/epidemiologia , beta 2-Glicoproteína I/imunologia
18.
Fetal Diagn Ther ; 41(1): 1-7, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27174184

RESUMO

OBJECTIVES: To analyze the role of middle cerebral artery (MCA) peak systolic velocity (PSV) in the prediction of severe fetomaternal hemorrhage (FMH) and to compare it with standard biophysical assessment. DATA SOURCES: Retrospective review of cases of FMH seen in our unit and systematic review of the literature. RESULTS: We followed the MOOSE guidelines to review the literature. From 838 articles, 16 were selected. In total, 35 women, including 3 cases from our center and 32 obtained from the literature search were included. Diagnosis of FMH was always confirmed by laboratory tests. Patients were seen at 31 ± 5 weeks' gestation (range 16-39) and the most frequent indication for referral was decreased perception of fetal movements. Cardiotocography (CTG) upon admission was sinusoidal in 18 cases, nonreactive in 6, decelerative in 2 and tachycardic in one. MCA-PSV was abnormal in all cases but one. There were 2 perinatal deaths. The mean hemoglobin concentration at birth or at intrauterine transfusion was 4.8 ± 1.9 g/dl. DISCUSSION: The most accurate predictor of FMH was fetal MCA-PSV. CTG was always abnormal but the pattern was frequently nonspecific. We suggest including fetal cerebral Doppler in the evaluation of patients with decreased fetal movements, particularly in those cases with ambiguous results of biophysical testing.


Assuntos
Transfusão Feto-Materna/diagnóstico por imagem , Adulto , Transfusão de Sangue Intrauterina , Feminino , Citometria de Fluxo , Humanos , Gravidez , Estudos Retrospectivos , Ultrassonografia Doppler , Ultrassonografia Pré-Natal
19.
Fetal Diagn Ther ; 42(4): 249-256, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28399531

RESUMO

OBJECTIVE: To evaluate the ability of intrapartum ultrasound to differentiate occipitoposterior (OP) rotation with normal flexion of the head from deflexion, to compare the accuracy of ultrasound with the digital examination, and to assess the outcome of labor according to the type of presentation. PATIENTS AND METHODS: A retrospective study of patients with abnormal labor because of either prolongation and/or abnormal cardiotocography and OP rotation who underwent intrapartum sonography. RESULTS: Normal flexion was inferred in 36/42 cases by a longitudinal sonographic view of the fetal face demonstrating the chin approaching the chest. In the remaining 6, deflexion was diagnosed by visualizing the chin separate and distant from the chest. In 3 of these cases, the orbits were at the same level of the pubis suggesting brow presentation. In the remaining 3 cases, the orbits were above the pubis, and sinciput presentation was inferred. Head deflexion was diagnosed more accurately with ultrasound than clinically and always required a cesarean section versus 36% of cases with OP flexed presentation (p = 0.0052). CONCLUSIONS: Fetuses with abnormal labor and OP rotation had deflexed presentations in 14% of cases and were never delivered vaginally. Sonography was far more accurate than the digital examination.


Assuntos
Apresentação no Trabalho de Parto , Ultrassonografia Pré-Natal , Feminino , Humanos , Gravidez , Estudos Retrospectivos
20.
Fetal Diagn Ther ; 42(3): 198-203, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28237993

RESUMO

OBJECTIVES: To compare the accuracy of the INTERGROWTH-21st (IG-21) with the Italian Society of Ultrasound in Obstetrics and Gynecology (SIEOG) abdominal circumference (AC) standards in the detection of small-for-gestational-age (SGA) fetuses in a high-risk population. MATERIAL AND METHODS: Our study included all pregnant patients with an increased risk of placental insufficiency that were seen in two Italian university hospitals between 2014 and 2015. The accuracy of IG-21 and SIEOG AC standards in the detection of SGA neonates was analyzed by means of the area under the receiver operating characteristic curve (ROC-AUC) at 4 gestational age intervals (24-27, 28-31, 32-35, >35 weeks). RESULTS: We enrolled 428 patients (278 Italians). There was no significant difference between the ROC-AUC of AC according to IG-21 and SIEOG standards for all birthweight thresholds and gestational intervals that were considered. The diagnostic performance was similar in Italian and non-Italian patients. The accuracy was, however, limited, with values of ROC-AUC ranging between 0.80 and 0.89. CONCLUSIONS: The IG-21 and SIEOG AC standards are interchangeable for the diagnosis of SGA fetuses. The diagnostic accuracy is, however, limited. We provide figures that can be used to stratify the probability that an infant will be SGA in an obstetric population at increased risk of growth restriction.


Assuntos
Abdome/diagnóstico por imagem , Recém-Nascido Pequeno para a Idade Gestacional , Ultrassonografia Pré-Natal/normas , Abdome/embriologia , Abdome/crescimento & desenvolvimento , Desenvolvimento Fetal , Idade Gestacional , Humanos , Itália
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