Primary Antiphospholipid Syndrome: Pregnancy Outcome in a Portuguese Population

Introduction:Women with antiphospholipid syndrome(APS) may suffer from recurrent miscarriage, fetal death, fetal growth restriction (FGR), pre-eclampsia, placental abruption, premature delivery and thrombosis. Treatment with aspirin and low molecular weight heparin (LMWH) combined with close maternal-fetal surveillance can change these outcomes. Objective: To assess maternal and perinatal outcome in a cohort of Portuguese women with primary APS. Patients and Methods: A retrospective analysis of 51 women with primary APS followed in our institution (January 1994 to December 2007). Forty one(80.4%) had past pregnancy morbidity and 35.3%(n=18) suffered previous thrombotic events. In their past they had a total of 116 pregnancies of which only 13.79 % resulted in live births. Forty four patients had positive anticardiolipin antibodies and 33 lupus anticoagulant. All women received treatment with low dose aspirin and LMWH. Results: There were a total of 67 gestations (66 single and one multiple). The live birth rate was 85.1%(57/67) with 10 pregnancy failures: seven in the first and second trimesters, one late fetal death and two medical terminations of pregnancy (one APS related). Mean (± SD) birth weight was 2837 ± 812 g and mean gestational age 37 ± 3.3 weeks. There were nine cases of FGR and 13 hypertensive complications(4 HELLP syndromes). 54.4% of the patients delivered by caesarean section. Conclusions: In our cohort, early treatment with aspirin and LMWH combined with close maternal-fetal surveillance was associated with a very high chance of a live newborn.

Ocular Toxoplasmosis Reactivation During Pregnancy – A Case Report

Introduction: Toxoplasmosis is caused by Toxoplasma gondii and may be acquired from food or water contaminated with cat feces or by vertical transmission. Severe fetal complications can overcome during pregnancy. There are also rare case-reports of congenital toxoplasmosis from previously immunized pregnant women; usually these women being had prior retinal toxoplasmic lesions. Immunosuppresion is one of the risk factors which accounts for some of these cases. Case report: 30 year-old pregnant woman, OI 2002, brazilian, previously healthy, admitted in Ophtalmology Department because of sudden left eye amaurosis in June, 2010. The fundoscopy revealed retinal scars suggesting previous infections; she was treated with corticoids and spiramycin for ocular toxoplasmosis reactivation. Previous serum analysis (2008) showed immunity to T. Gondii, but in July the IgM was negative and high levels of specific IgG were found (1227UI/mL). The serologic findings were later confirmed by a more accurate laboratory technique which found the IgM to be also positive. An amniocentesis was performed and it was negative for fetal transmission. Clinical and ultrasound follow-up throughout the rest of the gestational period was normal; daily spiramycin intake was maintained. An uneventful term delivery was performed. Neither the newborn’s serum analysis nor the histopathological study of the placenta were positive for congenital infection. Conclusion: Toxoplasmosis reactivation in pregnant women without immunosuppression is rare but is more likely to occur if previous post-infectious retinal scars are present. T. gondii infection is endemic in Brazil, so the geographical origin is important. If risk factors are present, fundoscopy should be performed every three months during pregnancy and one should always be aware of any visual symptoms. If you suspect reactivation, start medical prophylaxis for fetal transmission, perform amniocentesis and regular ultrasound follow-up.

Hipoglicémia na Gravidez

Hypoglycemia is considered when glycemia values fall below 60 mg/dl and is associated with increased maternal-fetal morbidity and mortality. In a diabetic pregnancy this complication can result from a decrease in caloric ingestion relative to administered insulin. Hypoglycemia can present as a simple adrenergic response or as a neuroglicopenic response that can lead to maternal death and stillbirth. This is the reason why it can rapidly evolve into an obstetric emergency. It is important to possess a pre-defined protocol to guide healthcare professionals regarding the rapid management of this situation. The authors review the scientific literature on the subject of hypoglycemia in pregnancy and propose a protocol to be applied in this situation.

Anesthesia for Ex Utero Intrapartum Treatment: Renewed Insight on a Rare Procedure

The ex utero intrapartum treatment is a rare surgical procedure performed in cases of expected postpartum fetal airway obstruction. The technique lies on a safe establishment of a patent airway during labor in anticipation of a critical respiratory event, without interrupting maternal-fetal circulation. Anesthetic management is substantially different from that regarding standard cesarean delivery and its main goals include uterine relaxation, fetal anesthesia and preservation of placental blood flow. We present the case of an ex utero intrapartum treatment procedure performed on a fetus with a large cervical lymphangioma and prenatal evidence of airway compromise. Modifications to the classic ex utero intrapartum treatment management strategies were successfully adopted and will be discussed in the following report.

Restrição do Crescimento Fetal - Casuística de 4 Anos

Overview and aims: Fetal growth restriction (FGR) affects 15% of pregnancies and is associated with both increased perinatal and neonatal morbidity and mortality and long-term effects in adult life. Our aim was to describe cases and outcomes of FGR from a tertiary perinatal care centre and identify the predictors of neonatal morbidity and mortality. Study design: retrospective cohort. Population: pregnancies with early or late FGR caused by placental factors followed from 2006 to 2009 in a tertiary perinatal care centre. Methods: we collected data from clinical records on demographics, clinical history and fetal ultrasound parameters. Perinatal and neonatal outcomes were stratiied according to gestational age (above or below 28 weeks) and we used bivariate analysis to identify any associations with clinical and imaging indings. Results: we included 246 pregnancies; hypertension was the most prevalent maternal risk factor (16%). There were 15 cases of early FGR, 11 of which had cesarean delivery due to deterioration of fetal Doppler parameters. Outcomes in this group included one fetal and three neonatal deaths. Of 231 cases of late FGR, 64% were delivered early given a non-reassuring fetal status i.e. due to changes in Doppler evaluation or altered Manning biophysical proile. There were four cases of perinatal death in this group, three of which delivered at 28 weeks. Neonatal morbidity was associated with lower gestational age, lower birthweight and progressive placental dysfunction (p<0.01). Conclusion: there was an association between neonatal morbidity and gestational age, birthweight and Doppler deterioration, particularly for deliveries below 28 weeks. The assessment of vascular changes through Doppler analysis allows anticipation of fetal deterioration and is a helpful tool in deciding the optimum timing of delivery.

Pré-Eclâmpsia Grave. Compromisso Materno e Fetal

Introdução: A pré-eclâmpsia (PE) é uma síndrome específica da gravidez, associado a morbimortalidade materna e perinatal. Métodos: Estudo retrospectivo descritivo das 134 gestações com PE grave, seguidas na nossa instituição de 2003 a 2005, com o objectivo de avaliar as repercussões maternas e fetais desta patologia. Resultados: Na maioria dos casos houve repercussão sistémica, manifestada por sintomatogia (79%) e valores laboratoriais indicativos de gravidade clínica. Os dados ecográficos revelaram 22,7% de restrição de crescimento intra-uterino e 21,3% de fluxometria doppler patológica. Decidiu-se interromper electivamente a gravidez em 95,3% dos casos, 60,5% nas primeiras 48h, sendo a síndrome materno a principal indicação. Verificaram-se 4 abortos e 5 mortes fetais. O parto ocorreu antes das 34 semanas em 63,1% dos casos. Em 82,8% a via de parto foi cesariana. Salientam-se 4 casos de insuficiência renal aguda e 2 casos de acidente vascular cerebral hemorrágico com morte materna. 20% dos recém-nascidos eram leves para a idade gestacional e verificou-se asfixia neonatal em 7,7%. Conclusão: A pré-eclâmpsia grave continua a ser uma patologia com implicações importantes no desfecho obstétrico.

Digit Ratio (2D:4D) in Newborns: Influences of Prenatal Testosterone and Maternal Environment

Introduction: The 2D:4D digit ratio is sexually-dimorphic, probably due to testosterone action through the perinatal period. We characterize the 2D:4D ratio in newborn (NB) infants, in between the pre- and postnatal surges of testosterone, and relate it to the mother's 2D:4D and to testosterone levels in the amniotic fluid (AF). Subjects and methods: Testosterone was assayed in samples of maternal plasma and AF collected at amniocentesis. Shortly after birth, 106 NBs and their mothers were measured for 2D:4D ratio. Results: NB males had lower mean 2D:4D ratios than females but this dimorphism was significant only for the left hand (males: 0.927; females: 0.950; p=0.004). Mothers who had sons had lower 2D:4D ratios than those who had daughters and the mother's 2D:4D were higher than those of NBs regardless of sex. Both hands of NB females were negatively correlated with AF testosterone and positively correlated with the mother's 2D:4D, but males showed no significant associations. Maternal plasma testosterone also showed a negative weak correlation with NB's digit ratio in both sexes. Conclusions: Sexual dimorphism at birth was only significant for the left hand, in contrast with reports of greater right hand dimorphism, suggesting that postnatal testosterone is determinant for 2D:4D stabilization. The lower 2D:4D ratios in mothers who had sons support claims that hormone levels in parents are influential for determining their children's sex. NB female's digit ratio, but not males', was associated to the level of AF testosterone. The mother's 2D:4D ratios were positively correlated with their daughters' 2D:4D, but the same was not observed for male NBs, suggesting that prenatal testosterone levels in male fetus lead their 2D:4D ratios to stray from their mothers' with high individual variability.

Validação da Importância dos Critérios de Referenciação Propostos pela Direcção Geral de Saúde para Realização de Ecocardiografia Fetal

Introdução: A malformação congénita mais frequente é a cardíaca, afectando cerca de 5-8 recém-nascidos/mil nados vivos. Actualmente é possível obter um diagnóstico pré-natal destas anomalias através do ecocardiograma fetal (EcoF), porém, porque os recursos em Saúde são limitados, este exame deve ser pedido de acordo com os critérios estabelecidos pela Direcção Geral de Saúde (DGS). Objectivos: Avaliar a importância dos critérios de referenciação propostos pela DGS para detecção de anomalias cardíacas. Determinar as taxas de prevalência e mortalidade nos fetos com doença cardíaca. Material e Métodos: Revisão casuística de uma amostra de 733 fetos aos quais foi realizado EcoF em consulta de Cardiologia Pré-natal num centro terciário de Cardiologia Pediátrica, no período de 2006 a 2008. Foram avaliados dados demográficos, motivo de referenciação (MR), resultados da EcoF e evolução. Classificámos os MR em dois grupos: (I) concordantes com as indicações da DGS- causas major (familiar, materna, fetal) e causas minor (outras situações); (II) não concordantes. Resultados: Realizaram-se 871 EcoF a 705 grávidas. A mediana da idade materna foi de 32 anos (15-45 anos) e a média da idade gestacional foi de 26 semanas (±4 sem). O grupo I incluiu 89% das grávidas. Identificaram-se 52 fetos (7%) com anomalias cardíacas: 42 estruturais, 8 de ritmo e 2 derrames pericárdicos. Estas anomalias distribuíram-se da seguinte forma: grupo I - causa familiar (3), causa materna (3), causa fetal (39), causas minor (5) e no grupo II (2). Observou-se um maior número de anomalias cardíacas no grupo I (6,8% vs 0,3%) (p> 0.05), sobretudo nos fetos referenciados por causa fetal (p<0,05). Perderam-se no controlo evolutivo 10 casos positivos, realizaram-se 3 interrupções médicas da gravidez e ocorreram 3 mortes. Mantêm-se em seguimento na consulta de Cardiologia Pediátrica 11 casos positivos. Conclusões: Na maioria dos casos cumpriram-se os critérios de referenciação da DGS, no entanto não se observou uma diferença estatisticamente significativa na prevalência de anomalias cardíacas fetais nas grávidas com e sem factores de risco. A causa fetal foi a que melhor se correlacionou com a presença de anomalia cardíaca. A prevalência destas anomalias e a taxa de mortalidade aferida na amostra pode estar subestimada por perda de casos positivos no controlo evolutivo.

Confined Placental Mosaicism in Chorionic Vilus Sampling - Case Report

Objectives: Chorionic Vilus Sampling (CVS) has several advantages over amniocentesis: it may be performed at an earlier gestational age, the results are quicker to obtain and there’s a lower miscarriage risk – 1%. However, the higher prevalence of discrepant fetal and vilus sampling material’s karyotype findings is a disadvantage of this technique – 0.5%. This is caused, amongst other causes, by placental mosaicism which consists of two genetically different cell lines. There are three types of placental mosaicism according to the abnormal cell line location: Type I – in the cytotrophoblast; Type II – in the vilus’ stroma; Type III – in both the above locations. Material and Methods: We present a case report about a 36-year-old pregnant woman going through our Department’s 1st trimester combined screening program; a CVS was performed, which showed Confined Placental Mosaicism (CPM). Results and Conclusion: Although the pregnant woman was in the low-risk group for aneuploidy, the patient wanted the cytogenetic study to be performed in order to reduce maternal anxiety. CVS was performed at the gestational age of 12 weeks + 5 days and the karyotype was 47XY+2/46XY. For the correct interpretation of this data an amniocentesis was performed at the gestational age of 15 weeks + 6 days, which showed a 46XY karyotype. We therefore conclude that the cytogenetic analysis of the CVS was the result of a CPM. A careful follow-up including fetal echocardiogram and seriated ultrasonographic monitoring was used to safely exclude malformations and fetal growth restriction. We verified no occurences throughout pregnancy, delivery and perinatal period. CVS practice was recently implemented in our country and has many advantages over amniocentesis. Besides the fact that an earlier gestational age usually means less affective bonding to the fetus and therefore makes medical termination of pregnancy somewhat less difficult, one should consider specific situations like the one reported in which CPM may be diagnosed. This condition is associated with increased risk of fetal growth restriction, so the clinician should be aware of the need for a more careful follow-up, since perinatal complications, which should be anticipated and treated, can be expected in 16-21% of these cases.

Sotalol no Tratamento da Taquicardia Fetal

A taquicardia fetal é uma situação rara, que, quando mantida coloca em risco a vida do feto. O modo de tratamento não é consensual, existindo várias modalidades farmacológicas. O objectivo deste estudo foi avaliar a eficácia e segurança do sotalol no tratamento de taquicardias fetais. Material e métodos: Estudo retrospectivo, com base nos registos de consulta e entrevista às mães dos fetos com taquicardia supraventricular, referenciados ao Serviço de Cardiologia Pediátrica do Hospital de Santa Marta, durante um período de dez anos. Resultados: Foram diagnosticados oito fetos com taquicardia supraventricular, dos quais seis foram tratados com sotalol. A idade média de gestação na apresentação foi de 30 semanas. Nenhum feto apresentava cardiopatia estrutural, em dois verificou-se hidropisia fetal e outro apresentou hidrocefalia. A taquicardia era supraventricular em todos, sendo em dois por flutter auricular. Em todos os casos, excepto um, houve conversão a ritmo sinusal, não se registando efeitos secundários nas mães nem mortalidade fetal. No período neonatal em três crianças foram registados episódios de taquicardia supraventricular paroxística. Conclusão: O sotalol mostrou-se seguro e eficaz no tratamento das taquicardias fetais, mas, dada a pequenez da amostra, outros estudos mais alargados são necessários para se tirarem conclusões válidas.

Late Stillbirth: a Ten Year Cohort Study

Introduction: Late fetal death is a desolating event that inspite the effort to implement new surveillance protocols in perinatal continues to defy our clinical pratice. Objective: To examine etiological factors contributing to main causes and conditions associated with fetal death in late pregnancies over a 10-year period. Methods: Retrospective cohort analysis of 208 late singleton stillbirth delived in a tertiary-perinatal referral maternity over a 10-year period. Clinical charts, laboratory data and feto-placental pathology findings were systematically reviewed. Results: The incidence of late fetal demise was 3.5 per 1000 pregnancies. No significant trend in the incidence of stillbirth was demonstrated during the study period. Stillbirth was intrapartum in 12 (5.8%) cases and 72 (35%) were term pregnancies. Fourteen percent of cases were undersurveilled pregnancies. Mean gestacional age at diagnosis was 34 weeks. The primary cause of death was fetal, it was present in 59 cases, 25% were considered small for gestational age. Stillbirths were unexplained in 24.5% of cases. Maternal medical disorders were identified in 21%. Hypertensive disorders were frequent and associated with early gestacional age (p = 0.028). Conclusion: There was no change in the incidence of late stillbirth during the 10 years under evaluation. The incidence was 3.5 ‰ which was identical to that described in developed countries. About one quarter of the stillbirths was unexplained. The most frequent maternal pathology was chronic hypertension.

Gravidez após Colocação de Banda Gástrica para Tratamento da Obesidade Mórbida

Obesity is known to have a negative impact on pregnancy outcome, as it is associated with an increase in the incidence of gestational diabetes, hypertension, preeclampsia, neural tube defects, macrosomia, and late fetal death. Gastric banding is considered an appropriate intervention for morbid obesity when other weight-loss measures are unsuccessful, and this treatment has been shown to be effective in causing a sustainable weight loss. Some women will become pregnant after bariatric surgery, and the nutritional and metabolic challenges brought by gastric banding may have a profound impact on maternal health and pregnancy outcome. The authors report the case of a 27 year old pregnant woman, with a past medical history of gastric banding surgery for morbid obesity. At 18 weeks of gestation, the patient started complaining of severe nausea and vomiting, The situation deteriorated three weeks later when she rapidly developed severe desnutrition, dehydration and early signs of liver and renal failure. Migration of the gastric band was diagnosed, and laparoscopy conducted to remove it. In the day following surgery the patient complained of absent fetal movements, and an intrauterine demise was diagnosed on ultrasound. Pathological examination of the fetus and placenta failed to reveal the cause of death, but no growth restriction was documented, suggesting the occurrence of an acute event.

Diabetes e Gravidez. Experiência da Consulta de Medicina Materno-Fetal do Serviço de Obstetricia e Ginecologia do Hospital de Dona Estefânia

Os autores realizaram um estudo retrospectivo das 87 grávidas vigiadas na Consulta de Diabetes do Hospital de Dona Estefânia com diabetes pré-gestacional tipo 1 e 2 e diabetes gestacional, durante um período de 2 anos. Analisararn a idade das grávidas, raça, paridade, tipo de diabetes, patologia associ ada, antecedentes familiares de diabetes, idade gestacional em que foi feito o diagnóstico de diabetes, insulinoterapia, evolução da gravidez, idade gestacional na altura do parto, características do parto e dos recém-nascidos e controlo no pós parto. A maioria das grávidas inscritas na consulta tinha idade superior a 30 anos (76%). A diabetes gestacional foi o tipo de diabetes mais frequente na consulta, tendo ocorrido sobretudo no 3° trirnestre. A hipertensão arterial crónica foi a patologia associada dominante, complicando-se em cinco casos de pré-eclâmpsia.Para além da pré-eclâmpsia, outra das complicacções mais frequentes foi a infecçãoo urinária. A cesariana foi o tipo de parto mais frequente. As suas principais indicações foram a cesariana electiva, a pré-eclâmpsia agravada e a distoócia. A macrossomia fetal só ocorreu em 5 dos 60 partos, refletindo um bom controlo metabólico.

Morte Fetal Tardia: Aspectos Obstétricos

A morte fetal tardia constitui um desafio para todos os obstetras. Apesar de intervenções efectivas no diagnóstico e terapêutica de algumas patologias como a diabetes gestacional, a pré-eclâmpsia e a taxa de morte fetal tardia mantêm-se desde há uma década relativamente constante, contribuindo de uma forma significativa para a mortalidade perinatal. Neste artigo é efectuada uma revisão de alguns aspectos obstétricos, uma reflexão sobre o conhecimento actual do tema.