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2.
Eur J Clin Microbiol Infect Dis ; 41(1): 45-51, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34458947

RESUMO

The aim of the study was to describe the pregnancy outcome of a large cohort of women with toxoplasmosis seroconversion in pregnancy and to investigate the relation between maternal lymphadenopathy and risk of congenital toxoplasmosis (CT). This was a retrospective study involving women with confirmed toxoplasmosis seroconversion in pregnancy between 2001 and 2017. Women were clinically evaluated for lymphadenopathy and classified as follows: lymphadenopathy absent (L-) or lymphadenopathy present (L+). The mothers were treated and followed-up according to local protocol, and neonates were monitored at least for 1 year in order to diagnose CT. A total of 218 women (one twin pregnancy) were included in the analysis. Pregnancy outcome was as follows: 149 (68%) of children not infected, 62 (28.3%) infected, 4 (1.8%) first trimester termination of pregnancy, 2 (0.9%) first trimester miscarriages, and 3 (1.4%) stillbirths (of which one already counted in the infected cohort). 13.8% of women were L+ , and they were nearly three times more likely to have a child with CT compared to L- women (aOR, 2.90; 95%CI, 1.28-6.58). Moreover, the result was still statistically significant when the analysis was restricted to 81 children whose mothers were clinically examined and received treatment within 5 weeks from estimated time of infection. In conclusion, there is a positive association between L+ status in pregnant women, and risk of CT also confirmed when restricting the analysis to women with early diagnosis of seroconversion and treatment. This data could be very useful in counselling pregnant women with toxoplasmosis seroconversion and lead to direct a more specific therapeutic and diagnostic protocol.


Assuntos
Anticorpos Antiprotozoários/sangue , Doenças do Recém-Nascido/diagnóstico , Linfadenopatia/sangue , Complicações Infecciosas na Gravidez/sangue , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Toxoplasmose Congênita/diagnóstico , Toxoplasmose/sangue , Adulto , Feminino , Humanos , Lactente , Recém-Nascido , Doenças do Recém-Nascido/parasitologia , Transmissão Vertical de Doenças Infecciosas , Linfadenopatia/diagnóstico , Linfadenopatia/parasitologia , Masculino , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/parasitologia , Resultado da Gravidez , Efeitos Tardios da Exposição Pré-Natal/parasitologia , Estudos Retrospectivos , Soroconversão , Toxoplasmose/diagnóstico , Toxoplasmose/parasitologia , Toxoplasmose/transmissão , Toxoplasmose Congênita/parasitologia , Adulto Jovem
3.
Acta Obstet Gynecol Scand ; 100 Suppl 1: 3-6, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33811334

RESUMO

Almost 10 years ago, clinicians at multiple locations all over Europe observed an increased number of antenatally undiagnosed cases of placenta accreta spectrum (PAS) resulting in significant morbidity and the occasional maternal death. Even with an improvement in antenatal imaging, the management of severe PAS remains challenging. One solution to improve understanding in rare but potentially lethal conditions is international collaboration. Consequently, a European working group was formed, which over the next few years grew into an international society, the IS-PAS. The collective goals are to develop a large shared database of cases, generate high-quality research into all aspects of PAS, and improve education of both healthcare professionals and patients. The first results of this collaboration are presented within this supplement.


Assuntos
Objetivos , Cooperação Internacional , Placenta Acreta/patologia , Sociedades Científicas/organização & administração , Feminino , História do Século XXI , Humanos , Placenta Acreta/história , Gravidez , Sociedades Científicas/história
4.
Prenat Diagn ; 41(6): 743-753, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33440021

RESUMO

OBJECTIVE: Heart anomalies represent nearly one-third of all congenital anomalies. They are currently diagnosed using ultrasound. However, there is a strong need for a more accurate and less operator-dependent screening method. Here we report a metabolomics characterization of maternal serum in order to describe a metabolomic fingerprint representative of heart congenital anomalies. METHODS: Metabolomic profiles were obtained from serum of 350 mothers (280 controls and 70 cases). Nine classification models were built and optimized. An ensemble model was built based on the results from the individual models. RESULTS: The ensemble machine learning model correctly classified all cases and controls. Malonic, 3-hydroxybutyric and methyl glutaric acid, urea, androstenedione, fructose, tocopherol, leucine, and putrescine were determined as the most relevant metabolites in class separation. CONCLUSION: The metabolomic signature of second trimester maternal serum from pregnancies affected by a fetal heart anomaly is quantifiably different from that of a normal pregnancy. Maternal serum metabolomics is a promising tool for the accurate and sensitive screening of such congenital defects. Moreover, the revelation of the associated metabolites and their respective biochemical pathways allows a better understanding of the overall pathophysiology of affected pregnancies.


Assuntos
Cardiopatias Congênitas/diagnóstico , Metabolômica/métodos , Adulto , Feminino , Cardiopatias Congênitas/sangue , Cardiopatias Congênitas/epidemiologia , Humanos , Itália/epidemiologia , Metabolômica/normas , Metabolômica/estatística & dados numéricos , Teste Pré-Natal não Invasivo/métodos , Teste Pré-Natal não Invasivo/estatística & dados numéricos , Gravidez , Estudos Prospectivos
5.
J Matern Fetal Neonatal Med ; 34(22): 3803-3812, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31722581

RESUMO

Histological chorioamnionitis is associated with significant adverse maternal, perinatal and long-term outcome. We performed a meta-analysis of 30 observational studies in order to clarify the association between Histological chorioamnionitis and pulmonary complications, like respiratory distress syndrome and Bronchopulmonary Dysplasia. Unadjusted data extracted from all studies showed that Histological chorioamnionitis has no effect on development of RDS (RR 0.93, 95% CI 1.08-1.67), while it increased the risk of Bronchopulmonary Dysplasia (RR 1.75, 95% CI 1.37-2.23). However, when we restricted the analysis to the studies that adjust for Gestational Age, in order to exclude the influence of prematurity, we found that HCA reduced the risk of respiratory distress syndrome (RR 0.57, CI 95% 0.35-0.93) and it did not affect the development of Bronchopulmonary Dysplasia (RR 0.99, CI 0.76-1.3). Our results confirmed a possible role of prenatal inflammation on lung maturation. However, further prospective studies with a selected population are needed, in order to clarify the role of Histological chorioamnionitis in neonatal pulmonary complications.


Assuntos
Displasia Broncopulmonar , Corioamnionite , Nascimento Prematuro , Síndrome do Desconforto Respiratório do Recém-Nascido , Displasia Broncopulmonar/epidemiologia , Displasia Broncopulmonar/etiologia , Corioamnionite/epidemiologia , Feminino , Humanos , Recém-Nascido , Gravidez , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/etiologia , Estudos Prospectivos , Síndrome do Desconforto Respiratório do Recém-Nascido/epidemiologia , Síndrome do Desconforto Respiratório do Recém-Nascido/etiologia
6.
J Matern Fetal Neonatal Med ; 34(3): 386-389, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30999793

RESUMO

Objective: To evaluate benefits of use of ureteral stents in association with cesarean hysterectomy in case of placenta accreta.Methods: This was a single center, cohort study. Clinical records of singleton pregnancies with placenta accreta who underwent cesarean hysterectomy were included in the study. For this study, pregnancies with diagnoses of placenta accreta, increta, or percreta were considered under the umbrella term of placenta accreta. For all women with placenta accreta, delivery was planned via cesarean hysterectomy at 340-356 weeks, without any attempt to remove the placenta. Reasons for earlier delivery included vaginal bleeding and spontaneous onset of labor. The primary outcome was the incidence of unintentional urinary tract injury. Outcomes were compared in a cohort of women who had planned the placement of ureteral stents and in those who did not.Results: Forty-four singleton gestations with confirmed placenta accreta at the time of cesarean hysterectomy were included in the study. Twenty-four (54.5%) of the included women had the placing of ureteral stents prior to cesarean, while 20 (45.5%) did not. At histological confirmation, most of them had placenta accreta (17/44, 38.6%), 14 placenta increta (31.8%), and 13 placenta percreta (29.6%). Urinary tract injuries occurred in eight cases (18.2%), six in the ureteral stents and two in the non-ureteral stents group (25 versus 10%; p = .21). All the injuries were bladder injuries, while no cases of ureteral injury were recorded. All injuries were recognized intraoperatively.Conclusion: In case of placenta accreta, the use of ureteral stents in association with cesarean hysterectomy does not reduce the risk of urinary tract injury.


Assuntos
Placenta Acreta , Placenta Prévia , Cesárea/efeitos adversos , Estudos de Coortes , Feminino , Humanos , Histerectomia/efeitos adversos , Placenta Acreta/epidemiologia , Placenta Acreta/cirurgia , Gravidez , Estudos Retrospectivos , Stents/efeitos adversos
7.
J Matern Fetal Neonatal Med ; 34(18): 3089-3093, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31630581

RESUMO

X-linked Opitz G/BBB syndrome (XLOS) is a multiple congenital disorder inherited in an X-linked manner. XLOS may be suspected, in prenatal age, on the basis of sonographic findings in the second and/or third trimester of gestation. Pathogenetic variants in MID1 gene have been reported in individuals with XLOS. Prenatal genetic testing is offered for pregnancies at risk, in which the mutation in the family has been identified. To date no cases of prenatal diagnosis, based on first-trimester ultrasound data, have been reported. We present a case of a fetus at 12 gestational weeks with ultrasound multiple anomalies, including increased nuchal translucency, heart defects, cleft lip and palate, enlarged fourth ventricle absence of ductus venosus and family hystory of XLOS. The genetic prenatal test detected the c(0).1286-1G > T mutation of MID1 gene. Data about prenatal ultrasonographic findings consistent with XLOS are limited to second and third trimester. This is the first case reporting ultrasound detectable midline defects suggestive of XLOS as early as the first trimester of gestation. This case also suggests that when multiple anomalies are detected in a fetus with normal chromosomal structure, the possibility of a monogenic disorder must be considered.


Assuntos
Fenda Labial , Fissura Palatina , Hipertelorismo , Esôfago/anormalidades , Feminino , Doenças Genéticas Ligadas ao Cromossomo X , Humanos , Hipospadia , Gravidez , Primeiro Trimestre da Gravidez , Ultrassonografia Pré-Natal
8.
Pregnancy Hypertens ; 22: 191-195, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33065481

RESUMO

OBJECTIVE: We aimed to compare the haemodynamic profiles of obese and non-obese pregnant women, alongside describing the haemodynamic changes that occur in hypertensive disorders of pregnancies with an Appropriate for Gestational Age Fetus (HDP-AGA) beyond 34 weeks' gestation. STUDY DESIGN: In this prospective case-control study, maternal haemodynamic assessment was carried out by a trained operator using an UltraSonic Cardiac Output Monitor during a routine clinical assessment after 34 weeks of gestation. Indexed and non-indexed parameters were evaluated. MAIN OUTCOME MEASURES: Maternal hemodynamic parameters. RESULTS: Obese and non-obese women did not differ for non-indexed parameters (Cardiac Output, Stroke Volume, Systemic Vascular Resistance). Using indexed parameters, corrected for Body Surface Area, obese women presented significantly lower Cardiac Index z-score (-0.23 ± 0.5 vs 0.26 ± 1.2; p = 0.004), Stroke Volume Index z-score (-0.27 ± 0.8 vs 0.31 ± 1.0; p < 0.0001) and significantly higher Systemic Vascular Resistance Index (0.16 ± 0.8 vs -0.36 ± 0.7; p < 0.0001). In obese women, HDP-AGA (n = 19) had significantly higher Systemic Vascular Resistance Index z-score (1.26 ± 1.7 vs 0.16 ± 0.8; P = 0.009) and significantly lower Stroke Volume Index (-0.68 ± 0.8 vs -0.27 ± 0.8; 0.049). CONCLUSION: Using indexed parameters, differences in haemodynamic profiles between obese and non obese women can be highlighted. Obese women seem to present a cardiac maladapation to the pregnancy (reduced cardiac index and stroke volume and increased vascular resistance) that could explain the increased risk of complications in this subgroup.


Assuntos
Hipertensão Induzida pela Gravidez/fisiopatologia , Obesidade/fisiopatologia , Adulto , Índice de Massa Corporal , Débito Cardíaco , Estudos de Casos e Controles , Feminino , Humanos , Obesidade/complicações , Gravidez , Terceiro Trimestre da Gravidez , Estudos Prospectivos , Resistência Vascular
9.
BMC Pregnancy Childbirth ; 19(1): 471, 2019 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-31805895

RESUMO

BACKGROUND: Congenital malformations of the central nervous system (CNS) consist of a wide range of birth defects of multifactorial origin. METHODS: Concentrations of 44 metals were determined by Inductively Coupled Plasma Mass Spectrometry in serum of 111 mothers in the second trimester of pregnancy who carried a malformed fetus and compared them with serum concentrations of the same metals in 90 mothers with a normally developed fetus at the same week of pregnancy. Data are reported as means ± standard deviations. RESULTS: We found a direct relationship between congenital defects of the CNS and maternal serum concentration of aluminum: it was statistically higher in women carrying a fetus with this class of malformation, compared both to mothers carrying a fetus with another class of malformation (6.45 ± 15.15 µg/L Vs 1.44 ± 4.21 µg/L, p < 0.0006) and to Controls (i.e. mothers carrying a normally-developed fetus) (6.45 ± 15.15 µg/L Vs 0.11 ± 0.51 µg/L, p < 0.0006). Moreover, Aluminum abundances were below the limit of detection in the majority of control samples. CONCLUSION: CAluminum may play a role in the onset of central nervous system malformations, although the exact Aluminum species and related specific type of malformation needs further elucidation.


Assuntos
Exposição Materna , Metais Pesados/sangue , Malformações do Sistema Nervoso/sangue , Complicações na Gravidez/sangue , Adulto , Alumínio/sangue , Estudos de Casos e Controles , Sistema Nervoso Central/anormalidades , Aberrações Cromossômicas , Feminino , Feto/anormalidades , Humanos , Espectrometria de Massas , Gravidez , Segundo Trimestre da Gravidez/sangue
10.
BMC Pregnancy Childbirth ; 19(1): 318, 2019 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-31470807

RESUMO

BACKGROUND: Cobalamin metabolism disorders are rare, inherited diseases which cause megaloblastic anaemia and other clinical manifestations. Early diagnosis of these conditions is essential, in order to allow appropriate treatment as early as possible. CASE PRESENTATION: Here we report the case of a patient who was apparently healthy until the age of 20, when she presented with impaired renal function and normocytic anaemia. At the age of 34, when her first pregnancy resulted in an intrauterine death of a morphologically normal growth-restricted foetus, she was diagnosed with homocystinuria and methylmalonic aciduria due to cyanocobalamin C (cblC) defect, which was confirmed by molecular investigation. Consequently, hydroxocobalamin was administered to correct homocysteine plasma levels. This treatment was efficacious in lowering homocysteine plasma levels and restored anaemia and renal function. During a second pregnancy, the patient was also administered a prophylactic dose of low molecular -weight heparin. The pregnancy concluded with a full-term delivery of a healthy male. CONCLUSIONS: This case emphasises the importance of awareness and appropriate management of rare metabolic diseases during pregnancy. We suggest that women with late-onset cblC defect can have a positive pregnancy outcome if this metabolic disease is treated adequately.


Assuntos
Anticoagulantes/uso terapêutico , Enoxaparina/uso terapêutico , Homocistinúria/tratamento farmacológico , Hidroxocobalamina/uso terapêutico , Leucovorina/uso terapêutico , Complicações na Gravidez/tratamento farmacológico , Deficiência de Vitamina B 12/congênito , Complexo Vitamínico B/uso terapêutico , Aborto Espontâneo , Adulto , Feminino , Retardo do Crescimento Fetal , Homocistinúria/diagnóstico , Humanos , Gravidez , Resultado da Gravidez , Deficiência de Vitamina B 12/diagnóstico , Deficiência de Vitamina B 12/tratamento farmacológico
11.
Eur J Obstet Gynecol Reprod Biol ; 240: 316-321, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31404785

RESUMO

INTRODUCTION: The aim of this study was to evaluate the incidence of toxoplasmosis infection during pregnancy and to describe the characteristics of the serological status, management, follow-up and treatment. MATERIAL AND METHODS: This is a population-based cohort study of women referred for suspected toxoplasmosis during pregnancy from January, 2001 to December, 2012. Suspected toxoplasmosis was defined as positive IgM antibody during pregnancy. Women with suspected toxoplasmosis during pregnancy were classified into three groups: seroconversion, suspected infection, or no infection in pregnancy. Women in the first and second group were treated according to local protocol, and amniocentesis with toxoplasmosis PCR detection and serial detailed ultrasound scans were offered. Neonates were investigated for congenital toxoplasmosis at birth and were monitored for at least one year after birth. RESULTS: During the study period, there were 738,588 deliveries in Campania. Of them 1159 (0.2%) were referred to our Institution for suspected toxoplasmosis during pregnancy: 183 (15.8%) women were classified as seroconversion, 381 (32.9%) were suspected infection, and 595 (51.3%) were not infected in pregnancy. Neonatal outcome was available for 476 pregnancies, including 479 neonates (3 twins, 473 singletons), out of the 564 pregnancies with seroconversion or suspected infection. 384 (80.2%) babies were not infected at birth and at follow-up, 67 (14.0%) had congenital toxoplasmosis, 10 (2.1%) were voluntary induced termination of pregnancy, 15 (3.1%) were spontaneous miscarriage, and 4 (0.8%) were stillbirth (of which one counted already in the infected cohort). Considering cases of congenital toxoplasmosis, the transmission rate in women with seroconversion was 32.9% (52/158), and in women with suspected infection was 4.7% (15/321). CONCLUSIONS: Toxoplasmosis is uncommon in pregnancy with overall incidence of seroconversion and suspected infection in pregnancy of 0.8 per 1000 live births and incidence of congenital toxoplasmosis 0.1 per 1000 live births when applying a strict protocol of screening, follow-up, and treatment. 51.3% (595/1159) of women referred to our center for suspected infection were actually considered not infected.


Assuntos
Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez/epidemiologia , Toxoplasmose/epidemiologia , Adulto , Feminino , Humanos , Incidência , Recém-Nascido , Itália/epidemiologia , Programas de Rastreamento , Triagem Neonatal , Gravidez , Resultado da Gravidez , Soroconversão , Toxoplasmose Congênita/epidemiologia
12.
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
13.
Eur J Obstet Gynecol Reprod Biol ; 237: 7-12, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30978582

RESUMO

Thrombotic Microangiopathies during pregnancy and puerperium are very rare and, if undiagnosed, can be lifethreating. Pregnancy and postpartum can represent a trigger in predisposed patients. Therefore, obstetricians are usually the first to observe clinical symptoms and laboratory abnormalities suggestive of Thrombotic Microangiopathies. The aim of this review is to briefly describe the obstetrical and perinatal outcome of these entities and highlight the clues for a correct diagnosis of pregnancy-related Thrombotic Microangiopathies.


Assuntos
Complicações Hematológicas na Gravidez/diagnóstico , Microangiopatias Trombóticas/diagnóstico , Diagnóstico Diferencial , Feminino , Síndrome HELLP/diagnóstico , Humanos , Gravidez
14.
Am J Obstet Gynecol ; 220(6): 511-526, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30849356

RESUMO

The worldwide incidence of abnormally invasive placenta is rapidly rising, following the trend of increasing cesarean delivery. It is a heterogeneous condition and has a high maternal morbidity and mortality rate, presenting specific intrapartum challenges. Its rarity makes developing individual expertise difficult for the majority of clinicians. The International Society for Abnormally Invasive Placenta aims to improve clinicians' understanding and skills in managing this difficult condition. By pooling knowledge, experience, and expertise gained within a variety of different healthcare systems, the Society seeks to improve the outcomes for women with abnormally invasive placenta globally. The recommendations presented herewith were reached using a modified Delphi technique and are based on the best available evidence. The evidence base for each is presented using a formal grading system. The topics chosen address the most pertinent questions regarding intrapartum management of abnormally invasive placenta with respect to clinically relevant outcomes, including the following: definition of a center of excellence; requirement for antenatal hospitalization; antenatal optimization of hemoglobin; gestational age for delivery; antenatal corticosteroid administration; use of preoperative cystoscopy, ureteric stents, and prophylactic pelvic arterial balloon catheters; maternal position for surgery; type of skin incision; position of the uterine incision; use of interoperative ultrasound; prophylactic administration of oxytocin; optimal method for intraoperative diagnosis; use of expectant management; adjuvant therapies for expectant management; use of local surgical resection; type of hysterectomy; use of delayed hysterectomy; intraoperative measures to treat life-threatening hemorrhage; and fertility after conservative management.


Assuntos
Cesárea , Histerectomia , Placenta Acreta/terapia , Hemorragia Pós-Parto/prevenção & controle , Corticosteroides/uso terapêutico , Tratamento Conservador , Técnica Delphi , Gerenciamento Clínico , Feminino , Idade Gestacional , Hospitalização , Humanos , Ocitócicos/uso terapêutico , Ocitocina/uso terapêutico , Posicionamento do Paciente , Hemorragia Pós-Parto/terapia , Gravidez , Stents , Ureter , Conduta Expectante
15.
Eur J Obstet Gynecol Reprod Biol ; 234: 200-206, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30721786

RESUMO

OBJECTIVES: Early-onset preeclampsia is a form of preeclampsia requiring delivery before 34 weeks of gestation. The etiology is unknown, but placental dysfunction appears crucial. We evaluated the immunohistochemical expression of the antiapoptotic protein Bcl-2, the angiogenetic factors VEGF and PlGF, and the epithelial factors HGF, c-Met and STAT3 in placental samples of pregnancies complicated by early-onset preeclampsia. MATERIALS AND METHODS: Placental sections were obtained from 41 women with early-onset preeclampsia (cases) and from 31 uncomplicated pregnancies (controls). A standard haematoxylin and eosin stain was used to assess histological structure. Immunohistochemical expression of Bcl-2, VEGF, PlGF, HGF, c-Met and STAT3 was analyzed. RESULTS: Mean gestational age was 32 weeks in cases and 39 weeks in controls. Microscopically, sections from women with preeclampsia showed a disorder of villous development as a distal villous hypoplasia with placental undergrowth. The immunoistochemical expression of Bcl-2 (p < 0.0001), VEGF (p = 0.0323), PlGF (p = 0.002), HGF (p < 0.0001), c-Met (p < 0.0001) and STAT3 (p = 0.0004) were significantly lower in placentas of complicated pregnancies compared to uncomplicated ones. CONCLUSIONS: Early-onset preeclampsia is associated with a disorder of villous development. Apoptotic, angiogenetic and epithelial mechanisms are simultaneously impaired and contribute to placental dysfunctions.


Assuntos
Placenta/irrigação sanguínea , Pré-Eclâmpsia/patologia , Adulto , Apoptose , Feminino , Genes bcl-2 , Idade Gestacional , Fator de Crescimento de Hepatócito/metabolismo , Humanos , Proteínas de Membrana/metabolismo , Neovascularização Patológica , Placenta/patologia , Gravidez , Proteínas Proto-Oncogênicas c-met/metabolismo , Fator de Transcrição STAT3/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo , Adulto Jovem
16.
J Matern Fetal Neonatal Med ; 32(3): 369-376, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28889776

RESUMO

OBJECTIVE: To compare the mean transvaginal ultrasound (TVU) cervical length (CL) at midtrimester in screening for preterm birth in in vitro (IVF)-conceived twin pregnancies versus spontaneously-conceived twin pregnancies. METHODS: This was a retrospective cohort study. Potential study subjects were identified at the time of a routine second trimester fetal ultrasound exam at 18 0/7 to 23 6/7-week gestation. All women with twin diamniotic pregnancies screened with a single TVU CL for this trial were included. Mean TVU CLs were compared between IVF-conceived twin pregnancies and spontaneously-conceived twin pregnancies. The relationship of TVU CL with gestational age at delivery was assessed. Incidence of short TVU CL, defined as TVU CL ≤30 mm, was also calculated in the two groups. The primary outcome was the mean of TVU CL. Distribution of CL was determined and normality was examined in both groups Results: A total of 668 women with diamniotic twin pregnancies who underwent TVU CL screening between 18 0/6 and 23 6/7 weeks were included. 158 (23.7%) were IVF-conceived pregnancies, and 510 (76.3%) were spontaneously-conceived pregnancies. No women received progesterone, pessary, or cerclage for preterm birth prevention during pregnancy. The mean TVU CL was significantly lower in the IVF-conceived group (32.2 ± 10.5 mm) compared to the spontaneously-conceived group (34.1 ± 9.1 mm) (mean difference (MD) - 1.90 mm, 95%CI -3.72 to -0.08). The incidence of TVU CL ≤30 mm was 30.4% in the IVF-conceived group and 21.6% in the spontaneously-conceived group (adjusted odds ratio (aOR) 1.59, 95%CI 1.06-2.37). IVF-conceived twins had a significantly higher risk of spontaneous preterm birth <34 weeks (32.9 versus 21.2%; aOR 1.83, 95% confidence interval (CI) 1.23-2.71) and higher rate of delivery due to spontaneous onset of labor (64.5 versus 54.9%; aOR 1.50, 95%CI 1.03-2.17). For any given TVU CL measured between 18 0-7 and 23 6/7 weeks, gestational age at delivery for IVF-conceived twins was earlier by about 1 week on average compared with spontaneously-conceived twins. CONCLUSIONS: The higher rate of spontaneous preterm birth in IVF-conceived twin pregnancies is predicted by lower midtrimester TVU CL, as well as by the lower gestational age at birth per any given CL in the IVF-conceived compared to the spontaneously-conceived twin pregnancies.


Assuntos
Fertilização in vitro , Gravidez de Gêmeos/estatística & dados numéricos , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/etiologia , Gêmeos , Adulto , Feminino , Fertilização/fisiologia , Fertilização in vitro/estatística & dados numéricos , Humanos , Recém-Nascido , Gravidez , Resultado da Gravidez/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
17.
J Matern Fetal Neonatal Med ; 32(11): 1893-1900, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29251025

RESUMO

INTRODUCTION: Postpartum hemorrhage (PPH) is the leading cause of maternal mortality worldwide with a prevalence rate of approximately 6%. Although most cases of PPH have no identifiable risk factors, the incidence of PPH has been associated to the thromboprophylaxis in pregnancy with low molecular weight heparin (LMWH). Thus, the aim of the study is to evaluate the risk of PPH in cases of pregnant women exposed to LMWH. MATERIALS AND METHODS: Electronic research was performed in OVID, Scopus, ClinicalTrials.gov, MEDLINE, the PROSPERO International Prospective Register of Systematic Reviews, EMBASE, and the Cochrane Central Register of Controlled Trials through April 2016. We included randomized controlled trials, cohort and case-control studies of women who underwent thromboprophylaxis with LMWH during pregnancy compared to a control group (either placebo or no treatment). The primary outcome was the incidence of PPH. The summary measures were reported as relative risk (RR) or as mean differences (MD) with 95% confidence interval (CI). RESULTS: Eight studies including 22,162 women were analyzed. Of the 22,162 women, 1320 (6%) were administered LMWH, 20,842 (94%) women formed the nonexposed group (control group). Women treated with LMWH had a higher risk of PPH (RR 1.45, 95%CI 1.02-2.05) compared to controls; there was no difference in mean of blood loss at delivery (MD -32.90, 95%CI 68.72-2.93) and in risk of blood transfusion at delivery (RR 1.24, 95%CI 0.62-2.51), respectively. CONCLUSIONS: Women who receive LMWH during pregnancy have a significantly higher risk of developing PPH. Women who receive LMWH during pregnancy have neither significantly higher mean blood loss at delivery nor higher risk of blood transfusion.


Assuntos
Anticoagulantes/efeitos adversos , Heparina de Baixo Peso Molecular/efeitos adversos , Hemorragia Pós-Parto/induzido quimicamente , Feminino , Humanos , Gravidez , Risco
18.
J Matern Fetal Neonatal Med ; 32(18): 3012-3015, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29631463

RESUMO

Objective: To assess the risk of preeclampsia in women who underwent chorionic villus sampling (CVS). Study design: This is a retrospective, single-center, cohort study. All consecutive singleton gestations who underwent chorionic villus sampling from January 2014 to January 2016 were included in the study. The primary outcome was the incidence of preeclampsia. Subgroup analysis in women with beta thalassemic trait was performed. Logistic regression, presented as adjusted odds ratio (aOR) with the 95% of confidence interval (CI), was performed. Results: Five hundred forty-seven women who underwent CVS, and 1532 women who did not were analyzed. Women who underwent CVS had a significantly lower risk of preeclampsia (4.4 versus 8.0%; aOR 0.53, 95%CI 0.34-0.83), and late-onset preeclampsia (3.3 versus 6.1%; aOR 0.52, 95%CI 0.31-0.87). No statistically significant differences were found in preeclampsia with severe features, early-onset preeclampsia, and preterm birth (PTB). Women who underwent CVS due to thalassemic trait had a lower incidence of preeclampsia compare to those women who did not undergo CVS (3.3 versus 8.0%; aOR 0.39, 95%CI 0.14-0.87), while no differences were found comparing women who underwent CVS due to thalassemic trait with women who underwent CVS due to other reasons. Conclusions: Women who underwent first trimester CVS had a lower risk of preeclampsia compared to those who did not.


Assuntos
Amostra da Vilosidade Coriônica/estatística & dados numéricos , Pré-Eclâmpsia/epidemiologia , Adulto , Estudos de Casos e Controles , Amostra da Vilosidade Coriônica/efeitos adversos , Feminino , Humanos , Gravidez , Primeiro Trimestre da Gravidez , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Adulto Jovem
19.
J Nephrol ; 32(1): 17-25, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30159857

RESUMO

Pregnancy can be a dangerous trigger for patients with paroxysmal nocturnal hemoglobinuria (PNH), atypical hemolytic uremic syndrome (aHUS), or hemolysis, elevated liver enzymes and low platelet (HELLP) syndrome. Due to the possibility of several serious complications, pregnancy is somewhat discouraged in the presence of the above diseases. Eculizumab is a humanized antibody that may dramatically change the clinical course of PNH, aHUS and HELLP syndrome. However, data on the safety of eculizumab in pregnancy are scarce. In this narrative overview, we summarize current evidence on the use of eculizumab during pregnancy in women with PNH, aHUS and HELLP syndrome. Eculizumab is not present in breast milk, and the levels observed in umbilical cord blood samples are not sufficient to affect the concentrations of complement in newborns. Therefore, eculizumab may be regarded as safe in pregnancy. Nonetheless, given that data on eculizumab in pregnancy are limited, it is not possible to completely exclude risks for both mother and fetus in treating PNH, aHUS and HELLP syndrome.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Síndrome Hemolítico-Urêmica Atípica/tratamento farmacológico , Inativadores do Complemento/uso terapêutico , Síndrome HELLP/tratamento farmacológico , Hemoglobinúria Paroxística/tratamento farmacológico , Anticorpos Monoclonais Humanizados/efeitos adversos , Síndrome Hemolítico-Urêmica Atípica/diagnóstico , Síndrome Hemolítico-Urêmica Atípica/imunologia , Inativadores do Complemento/efeitos adversos , Feminino , Síndrome HELLP/diagnóstico , Síndrome HELLP/imunologia , Hemoglobinúria Paroxística/diagnóstico , Hemoglobinúria Paroxística/imunologia , Humanos , Segurança do Paciente , Gravidez , Medição de Risco , Fatores de Risco , Resultado do Tratamento
20.
Eur J Obstet Gynecol Reprod Biol ; 232: 30-32, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30465928

RESUMO

OBJECTIVE: The aim of our study is to evaluate if pregestational diabetes affects fetal heart rate (FHR) readings at 11-14 weeks of pregnancy. STUDY DESIGN: For each patient, we recorded age, body mass index (BMI), presence of pregestational diabetes, nuchal translucency (NT), FHR, crown-rump length (CRL), biparietal diameter (BPD) and gestational age. Pregnancies were grouped according to the presence or absence of pregestational diabetes and maternal and fetal variables were compared. Ordinal regression analysis was performed to assess the influence of maternal and fetal variables on the FHR. RESULTS: We included 994 pregnancies from 2009 to 2016. Kruskal-Wallis test showed that median FHR was higher in women with pregestational diabetes than in controls (161; IQR 11 vs. 158; IQR 10, χ2 = 5.13, p = 0.02). Ordinal regression analysis showed that differences in FHR were significantly correlated with the presence of pregestational diabetes (p = 0.007) and the CRL (p = 0.042) but not with the maternal BMI, maternal age, gestational age, BPD and NT. CONCLUSIONS: First trimester FHR is higher in diabetic pregnancies than in non-diabetic pregnancies. Therefore, further research is needed to assess whether these pregnancies may benefit from a correction of FHR for a better estimation of the chromosomal abnormalities risk.


Assuntos
Diabetes Mellitus/fisiopatologia , Frequência Cardíaca Fetal/fisiologia , Primeiro Trimestre da Gravidez/fisiologia , Gravidez em Diabéticas/fisiopatologia , Adulto , Estatura Cabeça-Cóccix , Ecocardiografia , Feminino , Humanos , Gravidez , Ultrassonografia Pré-Natal
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