VERA LUCIA JORNADA KREBS
Projetos de Pesquisa
Unidades Organizacionais
Instituto da Criança, Hospital das Clínicas, Faculdade de Medicina
LIM/36 - Laboratório de Pediatria Clínica, Hospital das Clínicas, Faculdade de Medicina
LIM/36 - Laboratório de Pediatria Clínica, Hospital das Clínicas, Faculdade de Medicina
11 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 11
- Nonimmune fetal ascites: identification of ultrasound findings predictive of perinatal death(2016) BACCEGA, Felipe; BRIZOT, Maria de Lourdes; KREBS, Vera Lucia Jornada; FRANCISCO, Rossana Pulcineli Vieira; ZUGAIB, MarceloAim: To determine the ultrasonographic findings that predict death in fetal ascites. Methods: This was a retrospective cohort study involving pregnancies with ultrasonographic findings related to fetal ascites. The inclusion criteria were as follows: single pregnancy with a live fetus; ultrasound findings of ascites; ascites unrelated to maternal fetal alloimmunization; and pregnancy follow-up at our institution. The chi(2)-test was used to evaluate the association of ultrasound findings and death. Multiple logistic regression analysis was performed to determine the ultrasound findings that are predictive of death prior to hospital discharge. Results: A total of 154 pregnancies were included in the study. In 8 (5.19%) cases, ascites was an isolated finding, and in 146 cases, other alterations were observed during the ultrasound evaluation. Death before hospital discharge occurred in 117 cases (76.00%). The following ultrasonographic findings were significantly associated with death: gestational age at diagnosis <24 weeks (P < 0.0001); stable/progressive ascites evolution (P = 0.004); the presence of hydrops (P < 0.0001); and the presence of cystic hygroma (P < 0.0001). The presence of hydrops, the presence of respiratory tract malformations, and stable/progressive ascites evolution were significantly associated with the prediction of death. Conclusions: Based on ultrasound examination, the presence of hydrops, malformation of the respiratory tract, and stable/progressive evolution of ascites increase the chances of death in cases of fetal ascites.
- Can thrombophilia worsen maternal and perinatal outcomes in cases of severe preeclampsia?(2018) BAPTISTA, Fernanda Spadotto; BORTOLOTTO, Maria Rita de Figueiredo Lemos; BIANCHINI, Fabiola Roberta Marim; KREBS, Vera Lucia Jornada; ZUGAIB, Marcelo; FRANCISCO, Rossana Pulcinelli VieiraObjective: To evaluate whether thrombophilia worsens maternal and foetal outcomes among patients with severe preeclampsia (PE). Method: From October 2009 to October 2014, an observational retrospective cohort study was performed on pregnant women with severe PE diagnosed before 34 weeks of gestation and their newborns hospitalized at the Clinics Hospital, FMUSP. Patients who had no heart disease, nephropathies, pre-gestational diabetes, gestational trophoblastic disease, foetal malformation, or twin pregnancy and who underwent thrombophilia screening during the postnatal period were included. New pregnancies of the same patient; cases of foetal morphological, genetic, or chromosomal abnormalities after birth; and women who used heparin or acetylsalicylic acid during pregnancy were excluded. Factor V Leiden, G20210A prothrombin mutation, antithrombin, protein C, protein S, homocysteine, lupus anticoagulant, and anticardiolipin IgG and IgM antibodies were analysed. The groups with and without thrombophilia were compared regarding their maternal clinical and laboratory parameters and perinatal outcomes. Results: Of the 127 patients selected, 30 (23.6%) had thrombophilia (hereditary or acquired). We found more white patients in thrombophilia group (p = .036). Analysis of maternal parameters showed a tendency of thrombophilic women to have more thrombocytopenia (p = .056) and showed worsening of composite laboratory abnormalities (aspartate aminotransferase >= 70 mg/dL, alanine aminotransferase >= 70 mg/dL, platelets < 100,000/mm(3), serum creatinine >= 1.1 mg/dL; p = .017). There were no differences in foetal perinatal outcomes. Conclusion: The presence of thrombophilia leads to worsening of maternal laboratory parameters among patients with severe forms of PE but without worsening perinatal outcomes.
- Conjoined twins pregnancies: experience with 36 cases from a single center(2011) BRIZOT, M. L.; LIAO, A. W.; LOPES, L. M.; OKUMURA, M.; MARQUES, M. S.; KREBS, V.; SCHULTZ, R.; ZUGAIB, M.Objective To review a single center's experience in the management of twin pregnancies with conjoined fetuses. Methods Retrospective study describing prenatal findings, delivery details, surgical treatment and perinatal outcome. Results The study included 36 twin pregnancies with conjoined twins seen over a period of 12 years in a single tertiary hospital: 69.4% were thoracopagus, 13.9% parapagus, 8.3% omphaloischiopagus 5.6% omphalopagus and 2.8% cephalopagus. Cardiac defects were present in 91.6% of twin pairs and associated malformations were present in 61.8% of the cases: limb abnormalities in 36.1%, abdominal wall defects in 25.0%, cleft lip and/ or palate in 13.9% and congenital diaphragmatic hernia in 5.5%. Surgical separation was considered not feasible and prognosis lethal in 30 (83.3%) cases. Termination of pregnancy was performed in 12 pregnancies of poor prognosis. Cesarean section was performed in all remaining cases. Five sets of twins underwent surgical separation and six children survived. Overall survival in our series was 8.3% and, among the livebirths, 13.6%. Conclusion Conjoined twin pregnancies should be referred to tertiary centers for detailed fetal anomaly and echocardiographic assessment to evaluate prognosis and determine the possibility of postnatal surgical separation.
- Should We Measure Fetal Omphalocele Diameter for Prediction of Perinatal Outcome?(2014) KIYOHARA, Marina Y.; BRIZOT, Maria L.; LIAO, Adolfo W.; FRANCISCO, Rossana P. V.; TANNURI, Ana C. A.; KREBS, Vera L. J.; ZUGAIB, MarceloObjective: To evaluate the fetal omphalocele diameter/abdominal circumference ratio (OD/AC) as a predictor of adverse perinatal outcome. Methods: Analysis involving 47 singleton pregnancies with fetal omphalocele, normal karyotype and absence of other major abnormalities. The OD/AC ratio was determined antenatally by ultrasound and the best cutoff for the prediction of neonatal death was determined by receiver operating characteristic curve analysis. Additional secondary outcomes included need for oral intubation in the first 24 h of life, two-step surgery or use of synthetic mesh, reoperation, parenteral feeding and need for respiratory assistance >21 days, time to first oral feed, and time to hospital discharge. Results: Fetal OD/AC did not change significantly with gestational age. Postnatal death occurred in 10 (21.3%) cases and the best cutoff for prediction was an OD/AC ratio >= 0.26 In pregnancies with the first ultrasound evaluation performed before 31 weeks' gestation and an OD/AC >= 0.26, the likelihood ratio for needing intubation in the first 24 h of life was 2.6 (95% CI: 1.2-5.7), needing two-step surgery or use of mesh was 4.9 (95% Cl: 1.9-14.4), and postnatal death was 4 (95% Cl: 1.9-7.5). Conclusion: A fetal ultrasound OD/AC ratio >= 0.26 is associated with increased postnatal morbidity and mortality. (C) 2013 S. Karger AG, Basel
- Pregnancy outcomes in severe polyhydramnios: no increase in risk in patients needing amnioreduction for maternal pain or respiratory distress(2016) KLEINE, Rodolpho Truffa; BERNARDES, Lisandra Stein; CARVALHO, Mariana Azevedo; CARVALHO, Mario Henrique Burlachini de; KREBS, Vera Lucia; FRANCISCO, Rossana Pulcineli VieiraIntroduction: Polyhydramnios is a common complication of fetal malformations and has been described to have high risk of pregnancy complications such as prematurity and placental abruption. In a subgroup of women severe polyhydramnios may lead to maternal dyspnea or untreatable pain, and amnioreduction is the procedure indicated to relieve those symptoms. There is a lack of information concerning the increase in the risk for the pregnancy when the procedure is indicated. Therefore, this study sought to evaluate the risk of complications in pregnancies with severe polyhydramnios that needed amnioreduction in relation to the basal risk for the pregnancy of having polyhydramnios without the need for the procedure.Materials and methods: Patients with singleton pregnancies and severe polyhydramnios followed in our fetal medicine center were evaluated retrospectively. Pregnancy complications (prematurity rate, fetal death, premature rupture of membranes, placental abruption and chorioamnionitis) were studied in the group of patients needing the procedure and their risk was compared to the risk of having a pregnancy with severe polyhydramnios but with no need for the procedure.Results: One hundred and thirty-five patients were evaluated. Forty-four patients (32.6%) needed amnioreduction. There was no increase in the risk of having complications when the procedure was needed OR=1.4 (CI 0.46-1.26).Conclusion: Amnioreduction performed to relieve maternal symptoms did not statistically increase the risk of pregnancy complications with severe polyhydramnios in single pregnancies.
- Sonographic Markers in the Prediction of Fetal Complex Gastroschisis(2018) ANDRADE, Walkyria S.; BRIZOT, Maria L.; RODRIGUES, Agatha S.; TANNURI, Ana C.; KREBS, Vera L.; NISHIE, Estela N.; FRANCISCO, Rossana P. V.; ZUGAIB, MarceloObjective: To investigate the ultrasound (US) markers predictive of complex gastroschisis (CG), mortality, and morbidity in fetuses with gastroschisis. Materials and Methods: This was a retrospective cohort study of 186 pregnancies with isolated fetal gastroschisis. Eight US markers were analyzed. The predictions and associations of US markers with CG, mortality, and morbidity were assessed. Combinations of US markers predictive of CG were investigated. Results: Extra-abdominal bowel dilatation (EABD), intra-abdominal bowel dilatation (IABD), and polyhydramnios were predictive of CG. EABD between 25 and 28 weeks had a sensitivity of 64%, a specificity of 89%, a positive predictive value (PPV) of 56.2%, and negative predictive value (NPV) of 91.8%. The predictions of IABD were sensitivity = 26.7%, specificity = 96.7%, PPV = 61.5%, and NPV = 86.8%. The odds ratios for CG in the presence of 1 and 2 US markers, compared with the absence of a US marker, were 18.3 (95% CI, 3.83-87.64) and 73.3 (95% CI, 6.14-876), respectively. Conclusion: US markers predictive of CG were established. The combination of these markers increases the probability of CG. (C) 2017 S. Karger AG, Basel
- Evaluation of the effectiveness of antenatal corticoid in preterm twin and single pregnancies: a multicenter cohort study(2022) GONCALVES-FERRI, Walusa Assad; MARTINEZ, Francisco Eulogio; MARTINS-CELINI, Fabia Pereira; ALMEIDA, Joao Henrique Carvalho Leme de; PROCIANOY, Renato; DUARTE, Jose Luiz Muniz Bandeira; CARVALHO, Elaine Alvarenga Almeida; FERREIRA, Daniela Marques de Lima Mota; ALVES FILHO, Navantino; SANTOS, Juliana Paula; GIMENEZ, Carolina Boschi; SANTOS, Cristina Nunes do; FERRARI, Ligia S. Lopes; VENZON, Paulyne Stadler; MENESES, Jucille; VALE, Marynea Silva do; RUGOLO, Ligia Maria Suppo de Souza; ALMEIDA, Maria Fernando Branco de; KREBS, Vera Lucia Jornada; DINIZ, Edna Maria de Albuquerque; FIORI, Humberto Holmer; MARBA, Sergio Tadeu MartinsBackground The effects of antenatal corticosteroids (ANSs) on twins are not well established. Objective To determine the impact of ANS use according to the number of fetuses. Methods Retrospective cohort study of newborns between 23 and 33 weeks of gestational age, birth weight from 400 to 1499 g, without malformations, delivered at 20 public university hospitals from 2010 to 2014. Exposed group: Received ANS (any time, any dose) and no exposed group: no received ANS. Analysis of birth conditions and clinical outcomes. Association of variables, relative risks, and 95% confidence intervals estimated from the adjustment of log-binomial regression models. Results About 7165 premature infants were analyzed: 5167 singleton, 937 twins, and 104 triplets. Characteristics of gestations with one, two, or three fetuses not receiving ANS were similar. Reduced hemodynamic instability in single and twins gestations in the first 72 h were observed (Adj R-2 Twins = 0.78; 95% CI = 0.69-0.86) (Adj R-2 Singles = 0.79; 95% CI = 0.62-0.99). Reduced peri-intraventricular hemorrhage (Adj R-2 Twins = 0.54; 95% CI = 0.36-0.78) (Adj R-2 singles = 0.54; 95% CI = 0.36-0.78); and early sepsis reduction on single and triplex gestations (Adj R-2 triplex = 0.51; 95% CI = 0.27-0.94) (Adj single R-2 = 0.51; 95% CI = 0.27-0.94) were observed. Conclusions This study demonstrates ANS produces an important protective factor for severe intraventricular hemorrhage and hemodynamic instability in single and multiple pregnancies. ANS had a protective effect on death and birth conditions improvement just in single gestations. Regarding respiratory aspects was not observed the protective effect in the single or multiple gestations.
- Prediction of intrauterine death and severe preterm delivery in twin pregnancies discordant for major fetal abnormality(2014) KANG, Helenice J.; LIAO, Adolfo W.; BRIZOT, Maria L.; FRANCISCO, Rossana P. V.; KREBS, Vera L. J.; ZUGAIB, MarceloObjective: To investigate predictors of spontaneous fetal death and preterm delivery in twin pregnancies with one fetus affected by a major structural malformation. Study design: Retrospective study (1999-2012) conducted at a tertiary teaching hospital involving 51 twin pregnancies (dichorionic = 31, monochorionic diamniotic = 15, monochorionic monoamniotic = 4, not established = 1) with a major fetal abnormality, enrolled before 26 weeks and managed expectantly. Primary outcomes: spontaneous fetal death, and/or delivery before 32 weeks. Prediction was examined with stepwise logistic regression analysis, and independent variables included: maternal age, gestational age at diagnosis, chorionicity, fetal gender, number and type of fetal abnormalities. Significance level was set at 0.15. Results: Fetal abnormalities were diagnosed at a mean gestation of 21.5 3.7 weeks: cardiac abnormalities were observed in 31.4% of abnormal fetuses, abdominal wall defects in 29.4%, central nervous system 21.5%, spine 17.6%, effusions 17.6%, noncardiac thoracic abnormalities 15.7%, genital and urinary system 13.7%, limbs and soft tissue 3.9%, intestinal 1.9% and facial defects 1.9%. Fetal death occurred in 15 (29.4%) abnormal fetuses and was significantly correlated with the number of fetal malformations (p = 0.02, OR = 2.54, 95% CI = 1.14-5.62), presence of effusion/hydrops (p = 0.06, OR = 4.7, 95% CI = 0.95-24) and monochorionic placenta (p = 0.11, OR= 2.8, 95% CI = 0.78-9.8). Normal co-twin fetal death occurred in four cases (7.8%) and was related to monochorionic pregnancies (p = 0.14, OR = 5.8, 95% CI = 0.56-61). Delivery before 32 weeks was observed in 14 (27.5%) pregnancies and was related to presence of effusion/ hydrops (p = 0.04, OR = 5.5, 95% CI = 1.07-28). Conclusion: Spontaneous fetal death and/or delivery before 32 weeks in twin pregnancies with one fetus affected by a major structural malformation are related to the number of abnormalities diagnosed and presence of fetal effusion or hydrops. 2014 Elsevier Ireland Ltd. All rights reserved.
- Kidney impairment in fetal growth restriction: three-dimensional evaluation of volume and vascularization(2020) SENRA, Janaina Campos; YOSHIZAKI, Carlos Tadashi; DORO, Giovana Farina; RUANO, Rodrigo; GIBELLI, Maria Augusta Bento Cicaroni; RODRIGUES, Agatha Sacramento; KOCH, Vera Hermina Kalika; KREBS, Vera Lucia Jornada; ZUGAIB, Marcelo; FRANCISCO, Rossana Pulcineli Vieira; BERNARDES, Lisandra SteinObjectives Renal development is impaired in fetal growth restriction (FGR). Renal size can be considered a surrogate of renal function in childhood, and could be impaired in that condition. Our aim was to evaluate the ratio of total renal volume, measured by three-dimensional ultrasound, to estimated fetal weight (TRV/EFW) among fetuses with and without growth restriction. Furthermore, we correlated TRV/EFW with fetal Doppler velocimetry and renal vascularization indexes and evaluated the association of renal volume and vascular parameters with adverse neonatal events in growth-restricted fetuses. Methods In a retrospective cohort, TRV and renal vascularization of growth-restricted and normal fetuses were evaluated by three-dimensional ultrasonography and VOCAL technique. Independent samples t-tests and Mann-Whitney test were used for comparisons between groups. Logistic regression model was applied to evaluate the association between renal characteristics and adverse neonatal events. Results Seventy-one growth-restricted fetuses were compared to 194 controls. The TRV/EFW was lower in the growth-restricted group (P < .001). In our sample, this ratio did not correlate with Doppler velocimetry parameters, renal vascular indexes or any adverse neonatal events. Conclusion The TRV/EFW ratio is decreased in FGR. Further studies are needed to investigate the association of this ratio with long-term renal outcomes.
- Fetal ductus arteriosus constriction and closure: analysis of the causes and perinatal outcome related to 45 consecutive cases(2016) LOPES, Lilian Maria; CARRILHO, Milene Carvalho; FRANCISCO, Rossana Pulcineli Vieira; LOPES, Marco Antonio Borges; KREBS, Vera Lucia Jornada; ZUGAIB, MarceloObjective: The aim of this study was to analyze the causes and perinatal outcome related to fetal ductus arteriosus constriction or closure at a single center over a 26-year period.Methods: This was a retrospective analysis of 45 consecutive cases of constriction (n=41) and closure (n=4) from 1987 through 2013. Patients were divided into Group A (maternal use of non-steroidal anti-inflammatory drugs (NSAID), n=29), Group B (idiopathic, n=8), and Group C (other drugs not previously described, n=8).Results: The median gestational age at diagnosis was 34 weeks (range, 27-38), mean systolic and diastolic velocity in the ductus arteriosus was 2.010.66m/s and 0.71 +/- 0.46m/s, respectively. Among the 29 cases of NSAIDs, 27.5% (8/29) have taken a single day use and 75% multiple days/doses. Right ventricular dilatation was present in 82.2% of the fetuses, tricuspid insufficiency in 86.6%, and heart failure in 22.2%. Neonatal persistent pulmonary hypertension occurred in 17.7% of the patients. Late follow-up showed all 43 survivors alive and healthy with only two deaths from unrelated causes.Conclusions: The results of this study indicate that clinically significant ductal constriction may follow maternal exposure to single doses of NSAIDs. Unknown causes or other new substances were also described, such as naphazoline, fluoxetine, isoxsuprine, caffeine and pesticides. Echocardiographic diagnosis of ductal constriction led to an active medical approach that resulted in low morbidity of this group of patients.