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1.
Eur J Radiol ; 168: 111116, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37801998

RESUMO

PURPOSE: To build and validate a predictive model of placental accreta spectrum (PAS) in patients with placenta previa (PP) combining clinical risk factors (CRF) with US and MRI signs. METHOD: Our retrospective study included patients with PP from two institutions. All patients underwent US and MRI examinations for suspicion of PAS. CRF consisting of maternal age, cesarean section number, smoking and hypertension were retrieved. US and MRI signs suggestive of PAS were evaluated. Logistic regression analysis was performed to identify CRF and/or US and MRI signs associated with PAS considering histology as the reference standard. A nomogram was created using significant CRF and imaging signs at multivariate analysis, and its diagnostic accuracy was measured using the area under the binomial ROC curve (AUC), and the cut-off point was determined by Youden's J statistic. RESULTS: A total of 171 patients were enrolled from two institutions. Independent predictors of PAS included in the nomogram were: 1) smoking and number of previous CS among CRF; 2) loss of the retroplacental clear space at US; 3) intraplacental dark bands, focal interruption of the myometrial border and placental bulging at MRI. A PAS-prediction nomogram was built including these parameters and an optimal cut-off of 14.5 points was identified, showing the highest sensitivity (91%) and specificity (88%) with an AUC value of 0.95 (AUC of 0.80 in the external validation cohort). CONCLUSION: A nomogram-based model combining CRF with US and MRI signs might help to predict PAS in PP patients, with MRI contributing more than US as imaging evaluation.


Assuntos
Placenta Acreta , Placenta Prévia , Gravidez , Humanos , Feminino , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/patologia , Placenta Prévia/diagnóstico por imagem , Placenta/patologia , Estudos Retrospectivos , Cesárea , Imageamento por Ressonância Magnética/métodos
2.
J Clin Med ; 11(19)2022 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-36233742

RESUMO

Antiphospholipid Antibody Syndrome (APS) is a systemic autoimmune disease characterized by acquired hypercoagulability with the possible development of venous, arterial, and microvascular thrombosis. We report a rare case of Libman-Sacks tricuspid valve endocarditis in a 38-year-old pregnant woman at 15 weeks gestation with unknown primary antiphospholipid syndrome. During a routine cardiac examination and echocardiography performed for a previous episode of pleuropericarditis, a large, mobile mass with irregular edges was found at the level of the tricuspid valve. Three main differential diagnoses for intramyocardial mass were examined: tumor, infective endocarditis, and nonbacterial thrombotic endocarditis (NTBE). Cardiac magnetic resonance imaging (CMR) with contrast raised the suspicion of a thrombus. The woman was hospitalized urgently at the Cardiac Intensive Care Unit of the Federico II University Hospital, and anticoagulant and antiplatelet therapy were started. The thrombophilic screening performed and medical history confirmed the diagnosis of primary antibody syndrome (APS). A multidisciplinary consultation with obstetricians, cardiologists, anesthetists, and cardiac surgeons was required. The patient decided not to terminate the pregnancy despite the risk to her health and to undergo cardiac surgery during pregnancy. Histological examination confirmed the presence of nonbacterial thrombotic endocarditis. Weekly obstetric scans were performed after surgery to verify fetal well-being. An emergency cesarean section was performed at the 35th week of gestation due to repeated deceleration and abnormal short-term variability on c-CTG in a pregnancy complicated by fetal growth restriction and gestational hypertension. A newborn weighing 1290 g was born. She was hospitalized in Neonatal Intensive Care and discharged after two months; currently, she enjoys good health. The management of patients with antiphospholipid antibody syndrome has not yet been standardized, but there is a general consensus that patients who do not have thrombocytopenia, thromboembolic phenomena, or pregnancy should not undergo any treatment or should take only low doses of acetylsalicylic acid. In the presence of any of the above conditions, various treatment regimens have been used based on the severity and individuality of the case.

3.
J Matern Fetal Neonatal Med ; 35(25): 5308-5311, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33504230

RESUMO

BACKGROUND: The optimal gestational age at delivery for stable women with suspected placenta accreta is still subject of debate. OBJECTIVE: To estimate the likelihood of vaginal bleeding necessitating expedited delivery in women with placenta accreta according to gestational age at planned cesarean hysterectomy. STUDY DESIGN: This was a multicenter cohort study. Singleton pregnancies at risk of placenta accreta because of placenta previa in the setting of prior cesarean delivery were included. Outcomes were compared in cohort of women who had planned cesarean hysterectomy at 34 0/7 - 34 6/7 weeks versus at 35 0/7 - 35 6/7 weeks. The primary outcome was incidence of vaginal bleeding severe enough to necessitate delivery. RESULTS: 118 singleton pregnancies with placenta previa in the setting of prior cesarean delivery, and confirmed placenta accreta at the time of delivery were included in the study. Women who had planned cesarean hysterectomy at 34 weeks had lower episodes of vaginal bleeding severe enough to necessitate immediate or emergency delivery (20.6% vs 38.0%; odds ratio (OR) 0.42, 95% confidence interval (CI) 0.19 to 0.96). Eight women (11.8%) in the 34 weeks group and 6 women (12.0%) in the 35 weeks group delivered before the planned date due to onset of spontaneous labor (OR 0.98, 95% CI 0.32 to 3.02). CONCLUSION: In singleton gestations with suspected placenta accreta, planned cesarean hysterectomy at 34 0/7 - 34 6/7 weeks was associated with a decreased chance of unscheduled delivery due to severe vaginal bleeding. CONDENSATION: In case of placenta accreta, planned cesarean hysterectomy at 34 weeks was associated with decreased chance of unscheduled delivery due to severe vaginal bleeding.


Assuntos
Placenta Acreta , Placenta Prévia , Gravidez , Feminino , Humanos , Placenta Acreta/epidemiologia , Placenta Acreta/cirurgia , Placenta Prévia/epidemiologia , Placenta Prévia/cirurgia , Idade Gestacional , Estudos de Coortes , Estudos Retrospectivos , Hemorragia Uterina/epidemiologia , Histerectomia
5.
Arch Gynecol Obstet ; 305(4): 859-867, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34455467

RESUMO

BACKGROUND: The COronaVIrus Disease 2019 (COVID-19) has spread in Italy since February 2020, inducing the government to call for lockdown of any activity, apart primary needs, during the months March-May 2020. During the lockdown, a reduction of admissions and hospitalizations for ischemic diseases was noticed. Purpose of this study was to observe if there has been the same reduction trend in Accident & Emergency (A&E) unit admissions also for obstetric-gynecological conditions. METHODS: Medical records and electronic clinical databases were searched for all patients who were admitted to the obstetric A&E department or hospitalized at the Gynecology and Obstetrics Unit of University hospital of Naples Federico II, during the quarter March-May in the years 2019 and 2020. The mean ± standard deviation (SD) of monthly admission to the obstetric A&E department and hospitalization of the year 2020 was compared with that of the year 2019, using the unpaired T test with α error set to 0.05 and 95% confidence intervals (95% CI). RESULTS: Admissions were 1483 in the year 2020 and 1786 in 2019. Of total, 1225 (37.5%) women were hospitalized: 583 in the year 2020, 642 in 2019. Mean ± SD of patients monthly admitted to our obstetric A&E department was 494 ± 33.7 in the year 2020, and 595.3 ± 30.9 in 2019, with a mean difference of - 101.3 (95% CI - 103.5 to - 99.1; p < 0.0001). Mean ± SD of patients monthly hospitalized to our department was 194 ± 19.1 in the year 2020, 213.7 ± 4.7 in 2019, with a mean difference of - 19.7 (95% CI - 23.8 to - 15.6; p < 0.0001). CONCLUSION: A significant decrease in the mean of monthly admissions and hospitalizations during the COVID-19 pandemic when compared to the previous year was found also for obstetric-gynecological conditions. Further studies are necessary to assess COVID-19 impact and to take the most appropriate countermeasures.


Assuntos
COVID-19 , Obstetrícia , Acidentes , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Feminino , Hospitalização , Hospitais , Humanos , Itália/epidemiologia , Pandemias , Gravidez , Estudos Retrospectivos , SARS-CoV-2
6.
Artigo em Inglês | MEDLINE | ID: mdl-36612551

RESUMO

Background: Although current guidelines recommend that mothers with suspected or confirmed SARS-CoV-2 infection should be encouraged to initiate and continue breastfeeding, up-to-date literature shows conflicting data regarding breastfeeding experiences in infected women. This survey aimed to report on the psychological impact of SARS-CoV-2 infection on breastfeeding practice and medical counselling in a single tertiary center in Southern Italy. Methods: One-hundred breastfeeding women with SARS-CoV-2 infection at delivery were given an anonymous questionnaire regarding breastfeeding and women's perception of the impact of COVID-19 on breastfeeding. Results: 75% of women reported they had difficulty breastfeeding; among them, 66 (66%) declared that separation from their babies after delivery affected their ability to breastfeed. Incidence of reported difficulties in breastfeeding was higher in women who underwent caesarean section compared to women with vaginal delivery (56/65, 86.2% vs. 19/35, 54.3%, χ2 = 12.322, p < 0.001) and in women with a hospital stay of more than 5 days (48/57, 84.2% vs. 23/37, 62.2%, χ2 = 5.902, p = 0.015). Furthermore, the incidence of difficulties in breastfeeding was higher in women who subsequently decided to use exclusively infant formula compared to women who mixed maternal milk with infant formula and women who breastfed exclusively with maternal milk (48/49, 98% vs. 20/25, 80% vs. 7/26, 26.9%, χ2 = 46.160, p < 0.001). Conclusions: Our survey highlights the importance of healthcare support and information on hygiene practices to decrease the perceived stress related to breastfeeding for infected mothers under restrictions, especially in women undergoing cesarean section and with a long hospital stay.


Assuntos
COVID-19 , Complicações Infecciosas na Gravidez , Lactente , Feminino , Humanos , Gravidez , Aleitamento Materno , COVID-19/epidemiologia , SARS-CoV-2 , Cesárea , Gestantes , Complicações Infecciosas na Gravidez/epidemiologia , Inquéritos e Questionários , Transmissão Vertical de Doenças Infecciosas
7.
Pregnancy Hypertens ; 26: 62-64, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34536701

RESUMO

Singleton pregnancies obtained by assisted reproductive technology (ART) are at increased risk of adverse pregnancy outcome. Aim of this pilot study was to compare maternal hemodynamic profile in ART and spontaneous singleton pregnancies. Patients were enrollered during a third trimester routine obstetric examination. Maternal haemodynamic assessment was carried out by a single trained operator using an UltraSonic Cardiac Output Monitor in standardized conditions. Our pilot data suggests that women conceived after ART may have significantly lower Cardiac Output and significantly higher Systemic Vascular Resistance when compared to those conceiving spontaneously. These differences, if confirmed in larger studies, might explain the increased prevalence of adverse outcome, especially hypertensive disorders of pregnancy, in singleton ART pregnancies.


Assuntos
Hemodinâmica/fisiologia , Técnicas de Reprodução Assistida/efeitos adversos , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Projetos Piloto , Gravidez , Estudos Prospectivos
8.
Radiol Med ; 126(9): 1216-1225, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34156592

RESUMO

OBJECTIVES: To predict placental accreta spectrum (PAS) in patients with placenta previa (PP) evaluating clinical risk factors (CRF), ultrasound (US) and magnetic resonance imaging (MRI) findings. METHODS: Seventy patients with PP were retrospectively selected. CRF were retrieved from medical records. US and MRI images were evaluated to detect imaging signs suggestive of PAS. Univariable analysis was performed to identify CRF, US and MRI signs associated with PAS considering histology as standard of reference. Receiver operating characteristic curve (ROC) analysis was performed, and the area under the curve (AUC) was calculated. Multivariable analysis was also performed. RESULTS: At univariable analysis, the number of previous cesarean section, smoking, loss of the retroplacental clear space, myometrial thinning < 1 mm, placental lacunae, intraplacental dark bands (IDB), focal interruption of myometrial border (FIMB) and abnormal vascularity were statistically significant. The AUC in predicting PAS progressively increased using CRF, US and MRI signs (0.69, 0.79 and 0.94, respectively; p < 0.05); the accuracy of MRI alone was similar to that obtained combining CRF, US and MRI variables (AUC = 0.97) and was significantly higher (p < 0.05) than that combining CRF and US (AUC = 0.83). Multivariable analysis showed that only IDB (p = 0.012) and FIMB (p = 0.029) were independently associated with PAS. CONCLUSIONS: MRI is the best modality to predict PAS in patients with PP independently from CRF and/or US finding. It is reasonable to propose the combined assessment of CRF and US as the first diagnostic level to predict PAS, sparing MRI for selected cases in which US findings are uncertain for PAS.


Assuntos
Imageamento por Ressonância Magnética , Placenta Acreta , Placenta Prévia/diagnóstico por imagem , Ultrassonografia Pré-Natal , Adulto , Análise de Variância , Área Sob a Curva , Feminino , Humanos , Pessoa de Meia-Idade , Placenta Acreta/diagnóstico por imagem , Gravidez , Curva ROC , Estudos Retrospectivos , Fatores de Risco
9.
Am J Obstet Gynecol MFM ; 3(4): 100352, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33771762

RESUMO

BACKGROUND: Since coronavirus disease 2019 vaccines have been distributed, a debate has raised on whether pregnant women should get the vaccine. No available data exist so far regarding the safety, efficacy, and toxicology of these vaccines when administered during pregnancy. Most of the Obstetrics and Gynecology societies suggested that pregnant could agree to be vaccinated, after a thorough counseling of risks and benefits with their gynecologists, thus leading to an autonomous decision. OBJECTIVE: This study aimed to evaluate the attitude to coronavirus disease 2019 vaccination in pregnant and breastfeeding women in Italy. STUDY DESIGN: A survey was made at the University of Naples Federico II and the Ospedale Cristo Re, Tor Vergata University of Rome, on pregnant and breastfeeding women asking their perspectives on the available vaccines after reading the recommendations issued by our national Obstetrics, Gynecology, and Neonatology societies. The questionnaire included 12 items finalized to evaluate general features of the women and 6 items specifically correlated to their attitudes toward the severe acute respiratory syndrome coronavirus 2 vaccination. Chi-square or Fisher's exact tests were used to compare group differences of categorical variables and Wilcoxon signed rank or Mann-Whitney U test for continuous variables. The study was approved by the institutional review boards of the University of Naples Federico II (ref. no. 409/2020) and the Ospedale Cristo Re, Tor Vergata University of Rome (ref. #Ost4-2020). RESULTS: Most of the included women did not agree to eventually receive severe acute respiratory syndrome coronavirus 2 vaccine during pregnancy (40 [28.2%] vs 102 [71.8%]). Being pregnant was considered a determinant factor to refuse the vaccine prophylaxis (99 [69.7%] vs 43 [30.3%]; chi-square test=24.187; P<.001), even if a very large percentage declared to be generally in favor of vaccines (128 [90.1%] vs 14 [9.9%]; chi-square test=6.091; P=.014) and most of them confirmed they received or would receive other recommended vaccines during pregnancy (75 [52.8%] vs 67 [47.2%]; chi-square test=10.996; P=.001). CONCLUSION: Urgent data are needed on the safety, efficacy, and toxicology of severe acute respiratory syndrome coronavirus 2 vaccines during pregnancy to modify this trend and to help obstetricians during the counseling. Furthermore, pregnant women should be included in future vaccine development trials to not incur again in such uncertainty.


Assuntos
COVID-19 , SARS-CoV-2 , Vacinas contra COVID-19 , Feminino , Humanos , Itália , Gravidez , Gestantes
11.
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
13.
Prenat Diagn ; 40(11): 1482-1488, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32683755

RESUMO

OBJECTIVE: To compare women's experience of first-trimester combined screening (FTCS), with women's experience of an approach that uses the combination of a detailed early anatomy scan and cell-free DNA (cfDNA) analysis. METHODS: This was single-center, open label, parallel group, randomized clinical trial. Pregnant women were randomized at the time of their first prenatal visit to either a policy of first-trimester risk assessment based on FTCS, or to a policy of first-trimester risk assessment based on ultrasound findings and cfDNA. FTCS included ultrasound evaluation with crown-rump length, nuchal translucency (NT) measurement, and a detailed ultrasound scan, along with biochemistry (PAPP-A and free beta hCG). In this group, invasive diagnostic testing was offered to patients with risk >1 in 100, or NT >3.5 mm, or any fetal abnormalities on ultrasound. Women randomized in the intervention group received an approach of first-trimester risk assessment based on ultrasound findings and cfDNA. cfDNA analysis included a simultaneous microarray-based assay of non-polymorphic (chromosomes 13, 18, 21, X and Y) and polymorphic loci to estimate chromosome proportion and fetal fraction. In the intervention group, invasive diagnostic testing was offered to patients with abnormal cfDNA screening results, or NT >3.5 mm, or any fetal abnormalities on ultrasound. Participants received pre-test and post-test questionnaires regarding to measure reassurance, satisfaction, and anxiety. The primary outcome was the post-test reassurance, defined as mean score of reassurance post-test questionnaire. The effect of the assigned screening test on the mean of each outcome was quantified as mean difference (MD) with 95% confidence interval (CI). RESULTS: Forty women with singleton gestations were enrolled in the trial. Mean score for reassurance was significantly higher in the cfDNA group compared to the FTCS group in the pre-test questionnaire (MD 0.80 points, 95% CI 0.27 to 1.33) and in the post-test questionnaire (MD 16.50 points, 95% CI 2.18 to 30.82). Women randomized to the cfDNA group had higher satisfaction and lower mean anxiety score as assessed in the STAI pre-test questionnaire. CONCLUSIONS: First-trimester risk assessment for fetal aneuploidy with a combination of a detailed ultrasound examination and cfDNA is associated with better maternal reassurance and better maternal satisfaction compared to the standard first-trimester combined screening with nuchal translucency, and biochemistry. TRIAL REGISTRATION: Clinicaltrials.gov NCT04077060.


Assuntos
Teste Pré-Natal não Invasivo , Primeiro Trimestre da Gravidez/psicologia , Ultrassonografia Pré-Natal/psicologia , Adulto , Ácidos Nucleicos Livres/análise , Feminino , Humanos , Gravidez , Adulto Jovem
14.
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
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.
Neuropsychiatr Dis Treat ; 11: 1157-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26005350

RESUMO

The practice of inhaling liquefied petroleum gas (LPG) to commit suicide is uncommon and almost exclusively a prerogative of the prison population. Numerous cases of sudden deaths caused by intentional propane and/or butane inhalation have been described, but these cases survived and a description of the consequences is very rare. We describe a prisoner who survived after voluntary inhalation of LPG, and who developed ataxia, Parkinsonism, and dystonia. Brain MRI showed bilateral hyperintensity in the basal ganglia and in the cerebellar hemispheres. The clinical evolution and the MRI abnormalities are similar to those described in cases of poisoning by CO where the mechanism of brain injury is related to histotoxic hypoxia. We believe that LPG, considered until now a mixture of gas with low neurotoxic power, may have caused direct toxic damage to the brain, mediated by a mechanism of hypoxia, such as in CO intoxication.

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