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1.
Ultrasound Obstet Gynecol ; 59(2): 153-161, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34396620

RESUMO

OBJECTIVE: To evaluate the postnatal outcome of children with a prenatal diagnosis of apparently isolated agenesis of the septum pellucidum (ASP). METHODS: A retrospective cohort study of cases of prenatally diagnosed ASP followed in two tertiary centers and a meta-analysis combining data from the cohort study with data from published studies identified in a systematic review were carried out. Only cases with apparently isolated ASP on antenatal ultrasound and/or magnetic resonance imaging and with available postnatal follow-up data were considered eligible for inclusion. The following outcomes were analyzed: incidence of chromosomal anomalies, agreement between antenatal and postnatal findings, overall incidence of septo-optic dysplasia (SOD) and incidence of major neurological disability (motor, language, coordination or behavioral disorder or epilepsy) in non-SOD children. The incidence of SOD in infants with apparently normal optic pathways on antenatal imaging was also evaluated. RESULTS: Fifteen cases of isolated ASP, with median postnatal follow-up of 36 months (range, 12-60 months), were selected from the two centers. Six previously published studies met the inclusion criteria for the systematic review and a total of 78 cases were eligible for the analysis, including the 15 cases from our series. Genetic tests were carried out antenatally in 30 fetuses, of which two had an abnormal result (pooled proportion, 9.0% (95% CI, 1.8-20.7%); I2 = 0%). Additional or discordant imaging findings were noted postnatally in 9/70 (pooled proportion, 13.7% (95% CI, 3.5-29.0%); I2 = 63.9%) cases. Of all 78 neonates with available follow-up, SOD was diagnosed postnatally in 14 (pooled proportion, 19.4% (95% CI, 8.6-33.2%); I2 = 51.2%). In 60 cases, the optic pathways were considered to be normal on antenatal imaging, and six of these (pooled proportion, 9.1% (95% CI, 1.1-24.0%); I2 = 62.0%) were diagnosed postnatally with SOD. Of the 46 infants with available neurological follow-up who were not affected by SOD, a major neurological disability was diagnosed in three (pooled proportion, 6.5% (95% CI, 0.5-18.6%); I2 = 40.1%). CONCLUSIONS: In the vast majority of cases with a prenatal diagnosis of apparently isolated ASP, the prognosis is favorable. However, an additional anomaly is detected after birth in about 14% of cases and has a negative impact on clinical outcome. Detailed antenatal assessment of the brain and optic pathways is strongly recommended in order to identify the presence of associated anomalies. Antenatal visualization of apparently normal optic pathways does not rule out SOD. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Diagnóstico Pré-Natal/métodos , Displasia Septo-Óptica/diagnóstico por imagem , Septo Pelúcido/anormalidades , Septo Pelúcido/diagnóstico por imagem , Estudos de Coortes , Feminino , Feto/diagnóstico por imagem , Humanos , Gravidez , Displasia Septo-Óptica/patologia , Ultrassonografia Pré-Natal
2.
BJOG ; 126(11): 1372-1379, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30461153

RESUMO

OBJECTIVE: To investigate the obstetric outcome of women carriers of the oxidative phosphorylation (OXPHOS) disorder mutation. DESIGN: A retrospective cohort study in a single tertiary centre. SETTING: A review of the obstetric history of women referred for prenatal screening of a mitochondrial disorder was performed. POPULATION: Women were divided into three groups: (1) women carrying mitochondrial DNA (mtDNA) mutations; (2) healthy women with a family history of mtDNA-related OXPHOS disorder; and (3) healthy women carrying heterozygote nuclear DNA mutations. METHODS: Obstetric history and pregnancy complications were evaluated separately in the three groups and compared with the control group. MAIN OUTCOME MEASURES PREGNANCY COMPLICATIONS. RESULTS: Seventy-five women were included with 287 cumulative pregnancies. Groups 1 and 3 had a significantly greater proportion of terminations of pregnancy (20 and 13% versus 0.8%, P < 0.001), and a lower percentage of live births (52 and 72% versus 87%, P = 0.001), compared with controls. Apart from this, the rate of obstetric complications in group 3 did not differ from the controls. The obstetric history of women in group 1 was marked by higher rates of early miscarriages (26 versus 11%, P = 0.004), gestational diabetes (14 versus 3%, P = 0.02), intrauterine growth restriction (IUGR, 10 versus 1%, P = 0.008), and postpartum haemorrhage than were reported for controls (12 versus 2%, P = 0.01). CONCLUSION: Women who are heteroplasmic for OXPHOS mutations have a higher incidence of pregnancy losses, gestational diabetes, IUGR, and post postpartum haemorrhage. TWEETABLE ABSTRACT: Women heteroplasmic for mitochondrial DNA mutations have a higher incidence of obstetric complications, compared with the control group.


Assuntos
Aborto Induzido/estatística & dados numéricos , Doenças Mitocondriais/genética , Complicações na Gravidez/genética , Diagnóstico Pré-Natal , Adulto , Feminino , França/epidemiologia , Aconselhamento Genético , Humanos , Incidência , Doenças Mitocondriais/diagnóstico , Doenças Mitocondriais/epidemiologia , Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/epidemiologia , Diagnóstico Pré-Natal/estatística & dados numéricos , Estudos Retrospectivos , Atenção Terciária à Saúde
3.
Ultrasound Obstet Gynecol ; 54(5): 582-588, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30809885

RESUMO

OBJECTIVES: To investigate the ultrasound characteristics and outcome of fetuses with non-visualization of the fetal gallbladder (NVFGB) followed in our tertiary university hospital, and to provide a comprehensive review of the literature on prenatal findings and outcome of NVFGB. METHODS: NVFGB was defined as non-visualization of the gallbladder on two targeted ultrasound examinations performed within a 1-week period. First, we reviewed the medical records of NVFGB cases managed in our center over a 9-year period. Then, we performed a systematic review of the literature to identify studies on NVFGB. The incidence of chromosomal anomalies, later visualization of the gallbladder, gallbladder agenesis, cystic fibrosis and biliary atresia was assessed in fetuses with isolated and non-isolated NVFGB. The role of hepatic enzyme measurements in the diagnosis of cystic fibrosis and biliary atresia in fetuses with NVFGB was also reviewed. RESULTS: Sixteen cases of NVFGB were followed in our center, in 10 (62.5%) of which it was an isolated finding. The incidence of biliary atresia was 12.5% and that of gallbladder agenesis was 12.5%, while no case of cystic fibrosis was reported. The gallbladder was visualized later in pregnancy or postnatally in 43.8% and 25.0% of cases, respectively. A total of seven studies, including our cohort, involving a total of 280 NVFGB cases, met the inclusion criteria for the systematic review. Overall, 20.5% of fetuses had an associated ultrasound anomaly, and the incidence of chromosomal anomaly in this group was 20.4%. In cases with isolated NVFGB, the incidence of chromosomal anomaly was 1.9%. In fetuses with normal karyotype and isolated NVFGB, the gallbladder was later visualized in 70.4% of cases, while the incidence of gallbladder agenesis, cystic fibrosis and biliary atresia was 25.2%, 3.1% and 4.8%, respectively. In fetuses with non-isolated NVFGB, the incidence of cystic fibrosis and biliary atresia was 23.1% and 18.2%, respectively. The negative predictive value of amniotic fluid enzyme levels for the prediction of severe disease (including biliary atresia or cystic fibrosis) ranged between 94% and 100% when evaluated before 22 weeks' gestation, and dropped to 88% after 22 weeks. CONCLUSIONS: In cases with persistent NVFGB, the risk of a severe postnatal condition should be considered. A detailed ultrasound scan should be offered and parents tested for cystic fibrosis gene mutation. An invasive procedure for karyotyping and measurement of liver enzyme concentrations before 22 weeks constitutes a reasonable work-up. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.


No visualización de la vesícula biliar fetal en la ecografía del segundo trimestre del embarazo: estudio de cohortes y revisión sistemática de la literatura sobre el resultado postnatal OBJETIVOS: Investigar las características ecográficas y los resultados de los fetos con no visualización de la vesícula biliar fetal (NVFGB, por sus siglas en inglés) a los que se ha dado seguimiento en un hospital universitario terciario, y ofrecer una revisión exhaustiva de la literatura sobre los hallazgos prenatales y los resultados de la NVFGB. MÉTODOS: La NVFGB se definió como la no visualización de la vesícula biliar en dos exámenes ecográficos específicos realizados en un período de una semana. Primero, se revisó los registros médicos de los casos de NVFGB tratados en este hospital durante un período de 9 años. Luego, se realizó una revisión sistemática de la literatura para identificar estudios sobre NVFGB. Se evaluó la incidencia de anomalías cromosómicas, la visualización posterior de la vesícula biliar, la agenesia vesicular, la fibrosis quística y la atresia biliar en fetos con NVFGB aislada y no aislada. También se examinó la función de las mediciones de las enzimas hepáticas en el diagnóstico de la fibrosis quística y la atresia biliar en fetos con NVFGB. RESULTADOS: Se siguieron dieciséis casos de NVFGB en este centro hospitalario, lo cual fue un hallazgo aislado en 10 de ellos (62,5%). La incidencia de atresia biliar fue del 12,5% y la de agenesia vesicular del 12,5%, mientras que no se reportó ningún caso de fibrosis quística. La vesícula biliar se visualizó más tarde en el embarazo o después del parto en el 43,8% y 25,0% de los casos, respectivamente. Un total de siete estudios cumplieron los criterios de inclusión para la revisión sistemática, incluidos los de la cohorte del mencionado hospital, con un total de 280 casos de NVFGB. En total, el 20,5% de los fetos presentaban una anomalía ecográfica asociada, y la incidencia de anomalías cromosómicas en este grupo fue del 20,4%. En los casos con NVFGB aislada, la incidencia de anomalías cromosómicas fue del 1,9%. En los fetos con cariotipo normal y NVFGB aislada, la vesícula biliar se visualizó posteriormente en el 70,4% de los casos, mientras que la incidencia de agenesia vesicular, fibrosis quística y atresia biliar fue del 25,2%, 3,1% y 4,8%, respectivamente. En los fetos con NVFGB no aislada, la incidencia de fibrosis quística y atresia biliar fue del 23,1% y 18,2%, respectivamente. El valor predictivo negativo de los niveles de enzimas del líquido amniótico para la predicción de una enfermedad grave (como la atresia biliar o la fibrosis quística) se situó entre el 94% y el 100% cuando se evaluó antes de las 22 semanas de gestación, y bajó al 88% después de las 22 semanas. CONCLUSIONES: En casos con NVFGB persistente, se debe considerar el riesgo de una condición postnatal severa. Se debe ofrecer una ecografía detallada y la madre y el padre deben someterse a pruebas para detectar mutaciones del gen de la fibrosis quística. Un examen diagnóstico razonable incluye un procedimiento invasivo para el cariotipado y la medición de las concentraciones de enzimas hepáticas antes de las 22 semanas.


Assuntos
Vesícula Biliar/diagnóstico por imagem , Vesícula Biliar/embriologia , Ultrassonografia Pré-Natal/métodos , Amniocentese , Atresia Biliar/diagnóstico , Aberrações Cromossômicas , Fibrose Cística/diagnóstico , Feminino , Vesícula Biliar/anormalidades , Humanos , Gravidez , Segundo Trimestre da Gravidez , Estudos Prospectivos , Estudos Retrospectivos
4.
Ultrasound Obstet Gynecol ; 51(5): 580-585, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-28876490

RESUMO

OBJECTIVE: To investigate the ultrasound characteristics and outcome of pregnancies with fetal intra-abdominal umbilical vein varix (FIUVV). METHODS: Cases of FIUVV managed at our tertiary university hospital over an 8-year period were reviewed. Information retrieved included gestational age and diameter of the umbilical varix at diagnosis, increase in varix diameter, associated ultrasound or chromosomal anomalies and pregnancy outcome. Furthermore, a systematic review and meta-analysis of series of FIUVV in the literature was performed to assess the incidence of chromosomal anomalies, small-for-gestational age infants and intrauterine fetal demise (IUFD), and to pool odds ratio (OR) estimates on the relationship between the incidence of these outcomes and the presence of additional associated ultrasound anomalies. RESULTS: Thirteen cases of FIUVV were included in the cohort study. Additional ultrasound anomalies were found in two (15.4%) of 13 cases. One case of IUFD was observed and no case of chromosomal anomaly or thrombosis of varix was recorded. A total of five studies comprising 254 cases met the inclusion criteria of the systematic review. FIUVV was associated with additional ultrasound anomalies (non-isolated FIUVV) in 19% (95% CI, 10.9-29.1%) of cases. No case of chromosomal abnormality or IUFD was reported in fetuses with isolated FIUVV. In contrast, in the group of non-isolated FIUVV, the incidence of chromosomal anomalies was 19.6% and that of IUFD was 7.3%, with ORs of 14.8 (95% CI, 2.9-73.0) and 8.2 (95% CI, 1.05-63.1), respectively, when compared with the group of isolated FIUVV. CONCLUSION: When isolated, the outcome of cases affected by FIUVV is usually favorable. In about 20% of cases, additional ultrasound anomalies are found, which are associated with an increased risk for chromosomal abnormalities and IUFD. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.


Assuntos
Doenças Fetais/diagnóstico por imagem , Feto/irrigação sanguínea , Veias Umbilicais/anormalidades , Varizes/diagnóstico por imagem , Adulto , Feminino , Idade Gestacional , Humanos , Gravidez , Estudos Retrospectivos , Ultrassonografia Doppler em Cores , Ultrassonografia Pré-Natal , Veias Umbilicais/diagnóstico por imagem , Varizes/patologia
5.
Prenat Diagn ; 35(4): 354-61, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25487821

RESUMO

OBJECTIVE: The objective is to study the course and outcome of fetuses with congenital atrioventricular block (AVB) in a single centre. METHODS: Retrospective analysis of cases diagnosed prenatally with second and third degree AVB. The clinical characteristics and outcome of fetal AVB were evaluated including in utero treatment. RESULTS: Sixty-two cases were studied. AVB was associated with a congenital heart defect (CHD-AVB) in 17 cases (27%), whereas it was isolated (i-AVB) in 45 (73%), 42 of which were associated with maternal antibodies. There were nine (52.9%) live births in the CHD-AVB group, five of which (55%) resulted in infant deaths. In the i-AVB group, there were 40/45 (88.9%) live births and 1/40 (2.5%) infant death; 36 (90%) babies required a permanent pacemaker. The only factor predictive of postnatal death was the presence of CHD (5/9 vs 1/39 or 48.7 [3.6; 1457.7], p < 0.001). Nineteen fetuses (40.5%) with i-AVB received steroids in utero. No difference in outcome was found between the AVB treated in utero versus the no-treatment group in terms of permanent pacemaker placement, postnatal death or development of dilated cardiomyopathy. CONCLUSION: The most important prognostic factor for congenital AVB is the association with CHD. In utero treatment remains questionable.


Assuntos
Bloqueio Atrioventricular/diagnóstico , Glucocorticoides/uso terapêutico , Cardiopatias Congênitas/diagnóstico , Adulto , Bloqueio Atrioventricular/tratamento farmacológico , Pré-Escolar , Feminino , Feto , Humanos , Lactente , Recém-Nascido , Gravidez , Resultado da Gravidez , Diagnóstico Pré-Natal , Prognóstico , Estudos Retrospectivos
6.
BJOG ; 119(1): 102-9, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22017923

RESUMO

OBJECTIVE: To establish a correlation between prenatal ultrasound findings and postnatal outcome in neonates with gastroschisis (GS). DESIGN: Retrospective case-control study. SETTING: Prenatal ultrasound reports, labour and neonatal intensive care unit notes, and paediatric surgical clinic records were reviewed. POPULATION: Neonates with an antenatal diagnosis of isolated GS. METHODS: The neonates were divided into two groups: one with associated bowel complications including intestinal atresia, perforation, necrosis or volvulus ('complex' GS), and the second without bowel complication ('simple' GS). Prenatal ultrasound markers: small-for-gestational-age, intra-abdominal and extra-abdominal bowel dilatation (>6 mm), thickened intestinal wall and stomach dilatation were correlated with outcome. MAIN OUTCOME MEASURES: Fetal or neonatal death in complex versus simple GS. Time on parenteral nutrition and duration of hospital stay were also noted. RESULTS: In all, 105 cases were eligible for analysis. Survival rate was 101/105 (96.2%). None of the ultrasound markers was predictive of fetal or neonatal death. Fourteen of 103 live-born babies (14.6%) had complex GS, which was associated with longer time on parenteral nutrition [8.0 (51.5-390) versus 33.5 (25.3-53.3) days, P<0.001] and longer duration of hospital stay [85.3 (55.5-210) versus 41.5 (33.0-64.8) days, P<0.001]. Infants with complex GS were more likely to require bowel resection and stoma placement (P<0.05). Intra-abdominal bowel dilatation was the only predictive ultrasound marker of complex GS (odds ratio 4.13, 95% CI 1.32-12.90; P=0.018). Receiver operating characteristic curve for observed/expected bowel diameter yielded 6 as the cutoff value for predicting complex GS (odds ratio 7.9, 95% CI 2.3-27.3; P=0.001) with 54% and 88% for sensibility and specificity, respectively. CONCLUSIONS: Intra-abdominal bowel dilatation is the only ultrasound marker predictive of complex GS but it is a strong marker.


Assuntos
Gastrosquise/diagnóstico por imagem , Ultrassonografia Pré-Natal , Adulto , Estudos de Casos e Controles , Dilatação Patológica/diagnóstico por imagem , Feminino , Gastrosquise/mortalidade , Idade Gestacional , Humanos , Tempo de Internação , Nutrição Parenteral/estatística & dados numéricos , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez , Curva ROC , Estudos Retrospectivos , Adulto Jovem
7.
Prenat Diagn ; 32(8): 789-96, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22653694

RESUMO

OBJECTIVES: To audit the practice of daily fetal heart rate home monitoring (FHM) in pregnancies complicated by fetal gastroschisis (GS). METHODS: Prenatal records and pregnancy outcome were reviewed of all cases with fetal GS between 1999 and 2010, managed with a consistent protocol, which included weekly fetal cardiotocography and ultrasound examinations after 30 weeks, and option of daily FHM. Data were collected including gestational age (GA) at FHM and the presence of fetal heart rate anomaly. Follow-up included fetal growth, amniotic fluid volume, gastrointestinal appearance and cardiotocography findings. RESULTS: One hundred five cases of GS were identified. Stillbirth rate was 1.9% (2/105). FHM was performed in 97/105 (92.4%) cases. Abnormal FHM was recorded in 24 cases. Fetuses with abnormal versus normal FHM were more likely to have C-section for fetal heart rate anomaly (50% vs 24%, p=0.025) at an earlier gestational age (34.9 ± 1.7 vs 35.8 ± 1.4 weeks, p=0.016). There was no difference in Apgar score or umbilical artery pH at birth. CONCLUSION: Fetal heart rate abnormalities are frequent in fetuses with GS. FHM appears useful in detecting fetal distress necessitating expedited delivery. However, the impact of a daily FHM policy on neonatal outcome should be evaluated in a randomized study.


Assuntos
Gastrosquise/fisiopatologia , Frequência Cardíaca Fetal , Adulto , Cardiotocografia , Cesárea/estatística & dados numéricos , Feminino , Gastrosquise/diagnóstico por imagem , Humanos , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Ultrassonografia Pré-Natal , Adulto Jovem
8.
Prenat Diagn ; 32(9): 888-92, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22718102

RESUMO

OBJECTIVES: To assess the perinatal outcome of fetuses with gastroschisis complicated by secondary bladder herniation. POPULATION AND MATERIALS: This was a retrospective study of all cases of isolated gastroschisis associated with bladder herniation managed at our institution. Prenatal ultrasound, obstetrical and perinatal information were collected. Pathology reports were also gathered. RESULTS: Out of 105 cases of gastroschisis managed at our institution, six (5.7%) were associated with secondary bladder herniation, two of them being diagnosed postnatally. Median gestational age at diagnosis of bladder herniation was 33.6 weeks (range 31-36) in five female and one male fetuses. Bladder herniation was associated with bowel dilatation in four cases (67%) and with pyelic dilatation in one case (17%). Despite increased surveillance, one male fetus died in utero. In four other cases, cesarean section was performed for fetal distress (three cases) or hyperechogenic bowels (one case). The five survivors had primary abdominal closure (n = 2) or staged repair (n = 3) with uneventful follow-up. CONCLUSION: Bladder herniation was present in 6% of apparently isolated gastroschisis. There was one intrauterine fetal death and four other cases were delivered for fetal distress. Increased surveillance seems justified.


Assuntos
Monitorização Fetal/métodos , Gastrosquise/terapia , Hérnia/terapia , Resultado da Gravidez/epidemiologia , Doenças da Bexiga Urinária/terapia , Adulto , Estudos de Coortes , Feminino , Morte Fetal/epidemiologia , Doenças Fetais/diagnóstico , Doenças Fetais/epidemiologia , Doenças Fetais/terapia , Gastrosquise/complicações , Gastrosquise/diagnóstico , Gastrosquise/epidemiologia , Idade Gestacional , Hérnia/complicações , Hérnia/diagnóstico , Hérnia/epidemiologia , Humanos , Recém-Nascido , Masculino , Gravidez , Estudos Retrospectivos , Ultrassonografia Pré-Natal , Doenças da Bexiga Urinária/complicações , Doenças da Bexiga Urinária/diagnóstico , Doenças da Bexiga Urinária/epidemiologia , Adulto Jovem
9.
Ultrasound Obstet Gynecol ; 38(5): 581-5, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21225666

RESUMO

OBJECTIVE: To evaluate longitudinally a cohort of twin pregnancies and to assess whether the occurrence of adverse pregnancy outcome may be related to specific maternal cardiac findings. METHODS: Women with twin pregnancies were enrolled prospectively and underwent serial maternal echocardiography at 20-23 weeks, 26-29 weeks and 30-33 weeks of gestation. Patients were excluded if delivery took place prior to 34 weeks. Cardiac findings were compared between patients with uneventful pregnancy outcome and those who developed one of the following complications: pre-eclampsia or gestational hypertension; small-for-gestational age (SGA) neonates (birth weight of one or both twins < 5(th) centile for gestational age). RESULTS: A group of 28 twin gestations was obtained for analysis, including eight complicated cases. At each visit, mean ± SD cardiac output (CO) was significantly higher in uncomplicated than complicated twin pregnancies (6.55 ± 0.82 vs 4.99 ± 0.67 L/min, P < 0.001 at 20-23 weeks; 7.31 ± 0.74 vs 5.66 ± 1.17 L/min, P < 0.001 at 26-29 weeks; 7.50 ± 0.89 vs 5.32 ± 0.74 L/min, P < 0.001 at 30-33 weeks), as was stroke volume (83.4 ± 12.2 vs 64.5 ± 9.2 mL, P = 0.001 at 20-23 weeks; 84.4 ± 15.6 vs 64.5 ± 12.0 mL, P = 0.003 at 26-29 weeks; 85.0 ± 19.2 vs 65.6 ± 10.7 mL, P = 0.013 at 30-33 weeks), whereas total vascular resistance (TVR) was lower (1005 ± 137 vs 1406 ± 159 dynes × s/cm(5) , P < 0.001 at 20-23 weeks; 924 ± 100 vs 1249 ± 231 dynes × s/cm(5) , P < 0.001 at 26-29 weeks; 929 ± 96 vs 1400 ± 244 dynes × s/cm(5) , P < 0.001 at 30-33 weeks). Moreover, CO, blood pressure (BP), heart rate (HR) and TVR remained stable throughout the assessed pregnancy interval in women developing a complication, whereas significant changes (rise in CO, HR and BP; fall in TVR) were noted in the uncomplicated group. CONCLUSIONS: Maternal cardiac function in twin pregnancies complicated by pre-eclampsia or SGA neonates apparently does not undergo the profound longitudinal changes that occur in uneventful twin pregnancies.


Assuntos
Débito Cardíaco , Ecocardiografia , Coração/fisiopatologia , Hipertensão Induzida pela Gravidez/fisiopatologia , Recém-Nascido Pequeno para a Idade Gestacional , Pré-Eclâmpsia/fisiopatologia , Adulto , Eletrocardiografia , Feminino , Retardo do Crescimento Fetal/fisiopatologia , Idade Gestacional , Humanos , Hipertensão Induzida pela Gravidez/diagnóstico por imagem , Recém-Nascido , Estudos Longitudinais , Masculino , Trabalho de Parto Prematuro , Pré-Eclâmpsia/diagnóstico por imagem , Gravidez , Resultado da Gravidez , Gravidez de Gêmeos , Estudos Prospectivos
10.
Ultrasound Obstet Gynecol ; 38(5): 575-80, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21240915

RESUMO

OBJECTIVE: To investigate maternal cardiac function in a cohort of uncomplicated twin gestations assessed longitudinally. METHODS: Women with twin pregnancies were enrolled prospectively and underwent serial maternal echocardiography at 20-23 weeks, 26-29 weeks and 30-33 weeks of gestation. Patients were excluded if any of these complications occurred after recruitment: delivery < 34 weeks; pre-eclampsia or gestational hypertension; small-for-gestational age neonates (birth weight of one or both twins < 5(th) centile for gestational age). Cardiac findings were compared with those obtained at the same gestational age periods in a group of singleton gestations. RESULTS: A group of 20 uncomplicated twin gestations was obtained for analysis and 10 singleton pregnancies were then selected as controls. At each visit, mean ± SD cardiac output (CO) was significantly higher in twins than in singletons (6.55 ± 0.82 vs 5.62 ± 0.82 L/min, P = 0.007 at 20-23 weeks; 7.31 ± 0.74 vs 6.39 ± 0.74 L/min, P = 0.003 at 26-29 weeks; 7.50 ± 0.89 vs 6.68 ± 0.65 L/min, P = 0.015 at 30-33 weeks), whereas total vascular resistance (TVR) was lower (1005 ± 137 vs 1179 ± 199 dynes × s/cm(5) , P = 0.009 at 20-23 weeks; 924 ± 100 vs 1070 ± 138 dynes × s/cm(5), P = 0.003 at 26-29 weeks; 929 ± 96 vs 1031 ± 122 dynes × s/cm(5), P = 0.018 at 30-33 weeks). In both twins and singletons, CO showed a significant increase while TVR decreased significantly throughout the assessed pregnancy time period. CONCLUSION: In twin gestation, maternal cardiac function apparently undergoes more profound changes compared with in singleton gestation, as testified by higher CO and lower TVR values at each stage of pregnancy starting from the mid-trimester.


Assuntos
Pressão Sanguínea , Débito Cardíaco , Cesárea , Ecocardiografia , Coração/fisiologia , Gravidez de Gêmeos , Adulto , Feminino , Idade Gestacional , Humanos , Incidência , Estudos Longitudinais , Gravidez , Complicações Cardiovasculares na Gravidez/diagnóstico por imagem , Complicações Cardiovasculares na Gravidez/fisiopatologia , Resultado da Gravidez , Estudos Prospectivos
11.
Ultrasound Obstet Gynecol ; 38(4): 395-9, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21337443

RESUMO

OBJECTIVES: To evaluate pregnancy outcome in patients with increased uterine artery (UtA) pulsatility at 34 weeks' gestation as an isolated finding. METHODS: Normotensive women attending at 34 weeks' gestation for fetal growth assessment were enrolled in the study if fetal growth was appropriate for age and mean UtA pulsatility index (PI) was persistently above the 95(th) centile for gestational age. Patients were excluded with any of the following conditions: multiple pregnancy, sonographic suspicion of fetal anomaly or fetal growth restriction, history of chronic maternal disease, hypertensive disorder or diabetes in the current pregnancy or one or more adverse events in their past obstetric history. The control group consisted of age- and body mass index-matched low-risk women attending at 34 weeks with normal uterine artery Doppler since the midtrimester. RESULTS: Sixty-six normotensive patients with normal fetal growth and increased UtA-PI at 34 weeks were included in the study group. Women with abnormal Doppler findings compared with controls showed significantly lower gestational age at delivery (38.2 ± 1.6 vs. 38.9 ± 1.3 weeks, P = 0.006), birth weight (2942 ± 583 vs. 3404 ± 469 g, P < 0.001), birth-weight Z-score (-0.61 ± 1.07 vs. 0.19 ± 1.05, P < 0.001) and increased risk of a small-for-gestational-age (SGA) newborn (13/66 vs. 1/66, P < 0.001). The occurrence of late pre-eclampsia (3/66 vs. 0/66, P = 0.24), admission to the neonatal intensive care unit (6/66 vs. 4/66, P = 0.74), rate of induction of labor (16/66 vs. 14/66, P = 0.83) and rate of Cesarean section due to fetal distress (6/66 vs. 3/66, P = 0.49) were comparable between the two groups. CONCLUSION: Increased UtA-PI as an isolated finding at 34 weeks' gestation is associated with an increased risk of delivering an SGA neonate.


Assuntos
Pressão Sanguínea , Retardo do Crescimento Fetal/fisiopatologia , Fluxo Pulsátil , Ultrassonografia Doppler de Pulso , Artéria Uterina/fisiopatologia , Adulto , Feminino , Retardo do Crescimento Fetal/diagnóstico por imagem , Idade Gestacional , Humanos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Gravidez , Resultado da Gravidez , Estudos Prospectivos , Medição de Risco , Ultrassonografia Pré-Natal , Artéria Uterina/diagnóstico por imagem
14.
Ultrasound Obstet Gynecol ; 30(5): 778-82, 2007 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17899576

RESUMO

OBJECTIVE: To evaluate the feasibility of three-dimensional multiplanar sonography in the local staging of cervical carcinoma. METHODS: Between January 2005 and May 2006, 14 patients with invasive cervical carcinoma underwent transvaginal volume ultrasound examination prior to primary surgery. Parametrial invasion was evaluated in the coronal plane, while both bladder and rectal invasion were evaluated in the sagittal plane. Ultrasound findings were compared with surgical and histological results. RESULTS: In 12 of the 14 cases, three-dimensional ultrasound findings were compatible with pathology results. In the remaining two cases, either infiltration of right parametrium or rectal invasion were suspected at ultrasound but not confirmed at pathology. CONCLUSIONS: Despite the small number of patients evaluated, three-dimensional multiplanar sonography appears to be a promising technique in the local staging of cervical carcinoma.


Assuntos
Neoplasias do Colo do Útero/diagnóstico por imagem , Adulto , Idoso , Estudos de Viabilidade , Feminino , Humanos , Imageamento Tridimensional/métodos , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias/métodos , Neoplasias Retais/diagnóstico por imagem , Neoplasias Retais/patologia , Sensibilidade e Especificidade , Resultado do Tratamento , Ultrassonografia , Neoplasias da Bexiga Urinária/diagnóstico por imagem , Neoplasias da Bexiga Urinária/patologia , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/terapia
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