Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 117
Filtrar
1.
BJOG ; 128(5): 900-906, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-32790132

RESUMO

OBJECTIVE: To compare neonatal outcomes of women with a body mass index (BMI) of ≥35 kg/m2 who underwent a trial of labour with those of women who underwent a planned primary caesarean section (CS). DESIGN: A retrospective cohort study of births between April 2012 and March 2014. SETTING: A provincial database: Better Outcomes Registry & Network (BORN) Ontario, Canada. POPULATION: A cohort of 8752 women with a BMI of ≥35 kg/m2 who had a singleton birth at 38-42 weeks of gestation. METHODS: Neonatal outcomes were compared between women who underwent a trial of labour (with either a successful vaginal birth or intrapartum CS) and those who underwent a planned CS. MAIN OUTCOME MEASURE: A composite of any of the following outcomes: intrapartum neonatal death, neonatal intensive care unit admission, 5-minute Apgar score of <7 or umbilical artery pH of <7.1. RESULTS: During the study period, 8433 (96.4%) women had a trial of labour and 319 (3.6%) had a planned CS. Intrapartum CS was performed in 1644 (19.5%) cases. There was no association between planned mode of delivery and the primary outcome (aOR 0.80, 95% CI 0.59-1.07). The primary outcome was lower among women who had a successful trial of labour (aOR 0.67, 95% CI 0.50-0.91) and was higher among women who had a failed trial of labour (aOR 1.74, 95% CI 1.21-2.48), compared with women who underwent a planned CS. CONCLUSIONS: In women with a BMI of ≥35 kg/m2 at a gestational age of 38-42 weeks, neonatal outcomes are comparable between planned vaginal delivery and planned CS, although a failed trial of labour is at risk of adverse neonatal outcome. TWEETABLE ABSTRACT: Neonatal outcomes are not affected by planned mode of delivery in women who are obese, with a BMI of ≥35 kg/m2 .


Assuntos
Índice de Apgar , Cesárea , Mortalidade Infantil , Terapia Intensiva Neonatal/estatística & dados numéricos , Obesidade , Complicações na Gravidez , Prova de Trabalho de Parto , Adulto , Índice de Massa Corporal , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Avaliação de Resultados em Cuidados de Saúde , Gravidez , Estudos Retrospectivos
2.
Ultrasound Obstet Gynecol ; 57(3): 409-416, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33073889

RESUMO

OBJECTIVE: The value of using customized birth-weight centiles to improve the diagnostic accuracy for fetal growth restriction (FGR), in comparison with using population-based charts, remains a matter of debate. One potential explanation for the conflicting data is that most studies used measures of perinatal mortality and morbidity as proxies for placenta-mediated FGR, many of which are not specific and may be confounded by other factors such as prematurity. The aim of this study was to compare the diagnostic accuracy of small-for-gestational age (SGA) at birth, defined according to customized vs population-based charts, for associated abnormal placental pathology. METHODS: This was a secondary analysis of data from a prospective cohort study on risk factors for placenta-mediated complications and abnormal placental pathology in low-risk nulliparous women. All placentae were sent for detailed histopathological examination by two perinatal pathologists. The primary exposure was SGA, defined as birth weight < 10th centile for gestational age using either a customized (SGAcust ) or a population-based (SGApop ) birth-weight reference. The outcomes of interest were one of three types of abnormal placental pathology associated with FGR: maternal vascular malperfusion (MVM), chronic villitis and fetal vascular malperfusion (FVM). Adjusted relative risks (aRR) with 95% CIs were estimated using modified Poisson regression analysis, with adjustment for smoking, body mass index and aspirin treatment. RESULTS: A total of 857 nulliparous women met the study criteria. The proportions of infants identified as SGA based on the customized and population-based charts were 12.6% (108/857) and 11.4% (98/857), respectively. A diagnosis of SGA using either customized or population-based charts was associated with an increased risk of any placental pathology (aRR, 3.04 (95% CI, 2.29-4.04) and 1.60 (95% CI, 1.10-2.31), respectively) and MVM pathology (aRR, 12.33 (95% CI, 6.60-23.03) and 5.29 (95% CI, 2.87-9.76), respectively). SGAcust , but not SGApop , was also associated with an increased risk for chronic villitis (aRR, 1.85 (95% CI, 1.07-3.18)) and FVM pathology (aRR, 2.48 (95% CI, 1.25-4.93)). SGAcust had a higher detection rate for any placental pathology (30.3% vs 17.1%; P < 0.001), MVM pathology (63.2% vs 39.5%; P = 0.003) and chronic villitis (20.8% vs 8.3%; P = 0.007) than did SGApop , for a similar false-positive rate. This was mainly the result of a higher detection rate for abnormal pathology in the white and East-Asian subgroups and a lower false-positive rate for abnormal pathology in the South-Asian subgroup by SGAcust than by SGApop . In addition, pregnancies in the SGAcust group, but not those in the SGApop group, were more likely to be complicated by preterm birth and a low 5-min Apgar score than were the corresponding non-SGA group. CONCLUSION: These findings suggest that customized birth-weight centiles may be superior to population-based birth-weight centiles in detecting FGR that is due to underlying placental disease. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Peso ao Nascer , Retardo do Crescimento Fetal/diagnóstico , Gráficos de Crescimento , Doenças Placentárias/diagnóstico , Diagnóstico Pré-Natal/estatística & dados numéricos , Adulto , Índice de Apgar , Feminino , Desenvolvimento Fetal , Retardo do Crescimento Fetal/etiologia , Idade Gestacional , Humanos , Recém-Nascido de Baixo Peso , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Doenças Placentárias/epidemiologia , Gravidez , Diagnóstico Pré-Natal/métodos , Estudos Prospectivos
3.
BMC Pregnancy Childbirth ; 20(1): 702, 2020 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-33203367

RESUMO

BACKGROUND: In the Twin Birth Study, women at 320/7-386/7 weeks of gestation, in whom the first twin was in cephalic presentation, were randomized to planned vaginal delivery or cesarean section. The study found no significant differences in neonatal or maternal outcomes in the two planned mode of delivery groups. We aimed to compare neonatal and maternal outcomes of twin gestations without spontaneous onset of labor, who underwent induction of labor or pre-labor cesarean section as the intervention of induction may affect outcomes. METHODS: In this secondary analysis of the Twin Birth Study we compared those who had an induction of labor with those who had a pre-labor cesarean section. The primary outcome was a composite of fetal or neonatal death or serious neonatal morbidity. Secondary outcome was a composite of maternal morbidity and mortality. TRIAL REGISTRATION: NCT00187369. RESULTS: Of the 2804 women included in the Twin Birth Study, a total of 1347 (48%) women required a delivery before a spontaneous onset of labor occurred: 568 (42%) in the planned vaginal delivery arm and 779 (58%) in the planned cesarean arm. Induction of labor was attempted in 409 (30%), and 938 (70%) had a pre-labor cesarean section. The rate of intrapartum cesarean section in the induction of labor group was 41.3%. The rate of the primary outcome was comparable between the pre-labor cesarean section group and induction of labor group (1.65% vs. 1.97%; p = 0.61; OR 0.83; 95% CI 0.43-1.62). The maternal composite outcome was found to be lower with pre-labor cesarean section compared to induction of labor (7.25% vs. 11.25%; p = 0.01; OR 0.61; 95% CI 0.41-0.91). CONCLUSION: In women with twin gestation between 320/7-386/7 weeks of gestation, induction of labor and pre-labor cesarean section have similar neonatal outcomes. Pre-labor cesarean section is associated with favorable maternal outcomes which differs from the overall Twin Birth Study results. These data may be used to better counsel women with twin gestation who are faced with the decision of interventional delivery.


Assuntos
Cesárea/estatística & dados numéricos , Doenças do Recém-Nascido/epidemiologia , Trabalho de Parto Induzido/estatística & dados numéricos , Complicações do Trabalho de Parto/prevenção & controle , Gravidez de Gêmeos/estatística & dados numéricos , Adulto , Índice de Apgar , Cesárea/efeitos adversos , Tomada de Decisão Clínica , Aconselhamento , Tomada de Decisão Compartilhada , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Doenças do Recém-Nascido/etiologia , Doenças do Recém-Nascido/prevenção & controle , Trabalho de Parto Induzido/efeitos adversos , Idade Materna , Complicações do Trabalho de Parto/epidemiologia , Complicações do Trabalho de Parto/etiologia , Gravidez , Resultado do Tratamento , Adulto Jovem
4.
Ultrasound Obstet Gynecol ; 55(6): 806-814, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31332850

RESUMO

OBJECTIVES: To evaluate the utility of ultrasound markers in the management of pregnancies complicated by preterm prelabor rupture of membranes (PPROM) between 23 + 0 and 33 + 6 weeks' gestation, and to assess the ability of ultrasound markers to predict adverse neonatal outcomes. METHODS: This was a retrospective cohort study of all patients with PPROM between 23 + 0 and 33 + 6 weeks' gestation and latency period (PPROM to delivery) > 48 h, who delivered before 34 weeks' gestation at a tertiary referral center between 2005 and 2017. All patients underwent a non-stress test daily and an ultrasound scan twice a week for assessment of amniotic fluid volume, biophysical profile (BPP) and umbilical artery (UA) pulsatility index (PI). In patients with suspected fetal growth restriction, fetal middle cerebral artery (MCA)-PI was also assessed and the cerebroplacental ratio (CPR) calculated. The last ultrasound examination performed prior to delivery was analyzed. We compared the characteristics and outcomes between women who were delivered owing to clinical suspicion of chorioamnionitis and those who were not delivered for this indication. The primary objective was to evaluate the utility of ultrasound in the management of patients with PPROM. The secondary objective was to assess the diagnostic performance of ultrasound markers (BPP score < 6, oligohydramnios, UA-PI > 95th percentile, MCA-PI < 5th percentile, CPR < 5th percentile) for the prediction of composite adverse neonatal outcome, which was defined as the presence of one or more of: perinatal death, respiratory distress syndrome, periventricular leukomalacia, intraventricular hemorrhage Grade 3 or 4, necrotizing enterocolitis, hypoxic ischemic encephalopathy, neonatal sepsis or neonatal seizures. RESULTS: A total of 504 women were included in the study, comprising 120 with suspected chorioamnionitis and 384 without. Women with suspected chorioamnionitis, compared with those without, were less likely to be nulliparous (34.2% vs 45.3%; P = 0.03) and more likely to have fever (50.8% vs 2.6%; P < 0.001) and be delivered by Cesarean section (69.2% vs 42.4%; P < 0.001), mainly owing to a history of previous Cesarean section (18.3% vs 9.1%; P = 0.005) and to having non-reassuring fetal heart rate tracings (32.5% vs 14.6%; P < 0.001). No significant differences were found between the two groups with regard to the median amniotic fluid volume, overall BPP score, BPP score < 6, MCA-PI or CPR. Median UA-PI was slightly higher in the suspected-chorioamnionitis group, yet the incidence of UA-PI > 95th percentile was similar between the two groups. There was a higher incidence of composite adverse neonatal outcome in the group with suspected chorioamnionitis than in the group without (78.3% vs 64.3%, respectively; P = 0.004). However, on logistic regression analysis, none of the ultrasound markers evaluated was found to be associated with chorioamnionitis or composite adverse neonatal outcome, and they all had a poor diagnostic performance for the prediction of chorioamnionitis and composite adverse neonatal outcome. CONCLUSIONS: Commonly used ultrasound markers in pregnancies complicated by PPROM were similar between women delivered for suspected chorioamnionitis and those delivered for other indications, and performed poorly in predicting composite adverse neonatal outcome. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.


Assuntos
Parto Obstétrico/estatística & dados numéricos , Ruptura Prematura de Membranas Fetais/diagnóstico por imagem , Ultrassonografia Pré-Natal/estatística & dados numéricos , Adulto , Líquido Amniótico , Biomarcadores/análise , Cesárea/estatística & dados numéricos , Corioamnionite/diagnóstico por imagem , Feminino , Retardo do Crescimento Fetal/diagnóstico por imagem , Humanos , Recém-Nascido , Oligo-Hidrâmnio/diagnóstico por imagem , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez , Terceiro Trimestre da Gravidez , Fluxo Pulsátil , Estudos Retrospectivos , Ultrassonografia Pré-Natal/métodos , Artérias Umbilicais/diagnóstico por imagem , Artérias Umbilicais/embriologia
6.
Ultrasound Obstet Gynecol ; 54(6): 767-773, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30834608

RESUMO

OBJECTIVE: Amniotic fluid volume (AFV) plays an important role in early fetal lung development, and oligohydramnios in early pregnancy is associated with pulmonary hypoplasia. The aim of this study was to evaluate the association between AFV at the time of presentation with early preterm prelabor rupture of membranes (PPROM) and severe neonatal respiratory morbidity and other adverse pregnancy outcomes. METHODS: This was a retrospective study of all women with a singleton pregnancy, admitted to a single tertiary referral center between 2004 and 2014, for expectant management of PPROM at 20 + 0 to 28 + 6 weeks' gestation. The primary exposure was AFV at presentation, classified according to sonographic maximum vertical pocket (MVP) as: normal AFV (> 2 cm), oligohydramnios (≤ 2 cm and > 1 cm) or severe oligohydramnios (≤ 1 cm). The primary outcome was a composite variable of severe respiratory morbidity, defined as either of the following: (1) need for respiratory support in the form of mechanical ventilation using an endotracheal tube for ≥ 72 h and need for surfactant; or (2) bronchopulmonary dysplasia, defined as requirement for oxygen at postmenstrual age of 36 weeks or at the time of transfer to a Level-II facility. Adjusted odds ratios (aOR) and 95% CI for the primary and secondary outcomes were calculated for each AFV-at-presentation group (using normal AFV as the reference), adjusting for gestational age (GA) at PPROM, latency period, birth weight, mode of delivery and chorioamnionitis. RESULTS: In total, 580 women were included, of whom 304 (52.4%) had normal AFV, 161 (27.8%) had oligohydramnios and 115 (19.8%) had severe oligohydramnios at presentation. The rates of severe respiratory morbidity were 16.1%, 26.7% and 45.2%, respectively. Compared with normal AFV at presentation, oligohydramnios (aOR, 3.27; 95% CI, 1.84-5.84) and severe oligohydramnios (aOR, 4.11; 95% CI, 2.26-7.56) at presentation were associated independently with severe respiratory morbidity. Other variables that were associated independently with the primary outcome were GA at PPROM (aOR, 0.54; 95% CI, 0.43-0.69), latency period (aOR, 0.94; 95% CI, 0.91-0.98) and Cesarean delivery (aOR, 2.01; 95% CI, 1.21-3.32). CONCLUSIONS: In women with early PPROM, AFV at presentation, as assessed by the MVP on ultrasound examination, is associated independently with severe neonatal respiratory morbidity. This information may be taken into consideration when counseling women with early PPROM regarding neonatal outcome and management options. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.


Assuntos
Líquido Amniótico/diagnóstico por imagem , Ruptura Prematura de Membranas Fetais/diagnóstico , Oligo-Hidrâmnio/diagnóstico , Síndrome Respiratória Aguda Grave/mortalidade , Anormalidades Múltiplas/etiologia , Adulto , Líquido Amniótico/fisiologia , Peso ao Nascer/fisiologia , Displasia Broncopulmonar/diagnóstico , Displasia Broncopulmonar/epidemiologia , Displasia Broncopulmonar/terapia , Cesárea/métodos , Corioamnionite/diagnóstico , Corioamnionite/epidemiologia , Corioamnionite/etiologia , Parto Obstétrico/tendências , Feminino , Ruptura Prematura de Membranas Fetais/tratamento farmacológico , Ruptura Prematura de Membranas Fetais/epidemiologia , Idade Gestacional , Humanos , Lactente , Mortalidade Infantil , Recém-Nascido , Pulmão/anormalidades , Pneumopatias/etiologia , Oligo-Hidrâmnio/epidemiologia , Oligo-Hidrâmnio/etiologia , Gravidez , Resultado da Gravidez/epidemiologia , Segundo Trimestre da Gravidez , Respiração Artificial/métodos , Respiração Artificial/estatística & dados numéricos , Estudos Retrospectivos , Síndrome Respiratória Aguda Grave/terapia , Centros de Atenção Terciária
7.
Int J Obstet Anesth ; 37: 29-35, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30482719

RESUMO

BACKGROUND: Spinal hypotension causes decreased regional cerebral oxygen saturation (ScO2) in women undergoing cesarean delivery. In this study we aimed to measure the change in ScO2 using near infrared spectroscopy in women receiving a prophylactic phenylephrine infusion during cesarean delivery under spinal anesthesia. METHODS: This was a prospective, observational cohort study. Fifty-three women had ScO2 measurements at the following time points: preoperatively, in the supine position with 30° of left lateral tilt; one and five minutes after spinal anesthesia; at the time of skin incision; immediately after delivery; one minute after commencing the oxytocin infusion; at completion of surgery, and one hour after surgery. Spinal anesthesia and a prophylactic phenylephrine infusion were administered according to a standard treatment protocol. Statistical analysis used the Wilcoxon Signed Rank test with Bonferroni's correction for multiple comparisons. RESULTS: Blood pressure was maintained within 20% of baseline throughout surgery. The baseline mean (range) ScO2 was 61.5% (54.0-66.3%). It decreased significantly at all subsequent measurement points. The maximum decrease was five minutes after spinal anesthesia. Thirty-four (64.2%) of the parturients exhibited ScO2 values <20% of baseline, or a decrease to below an absolute value of 50%. There was no significant correlation between systolic blood pressure and mean ScO2. CONCLUSION: Spinal anesthesia with phenylephrine infusion during cesarean delivery is associated with a significant decrease in ScO2 levels, maximal five minutes later. Further studies are required to establish the clinical significance of this finding.


Assuntos
Anestesia Obstétrica/efeitos adversos , Raquianestesia/efeitos adversos , Encéfalo/metabolismo , Cesárea , Hipotensão/prevenção & controle , Oxigênio/metabolismo , Fenilefrina/uso terapêutico , Adulto , Feminino , Humanos , Gravidez , Estudos Prospectivos
8.
Arch Gynecol Obstet ; 297(6): 1405-1413, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29453654

RESUMO

PURPOSE: Uterine activity plays a crucial role in labor, especially when utero-tonic materials are administered. We aimed to determine the electrical responsiveness of the uterine musculature to labor augmentation with oxytocin using electrical uterine myography (EUM) technology, and to assess whether the kinetics of the EUM device may serve as a predictor for successful vaginal delivery. METHODS: EUM prospectively measured electrical uterine activity in women with singleton gestations at term (≥ 37 + 0 weeks) undergoing labor augmentation by oxytocin administration. The results were reported as the EUM index, which represented the mean electrical activity in 10-min intervals and measured in units of microwatt per second (mW/s). Measurements were performed at least 30 min before oxytocin initiation and until at least four contractions per 10 min were recorded by standard tocodynamometry. The delta EUM index was defined as the difference between the mean EUM index before and after the initiation of oxytocin. RESULTS: The mean EUM index increased significantly during oxytocin augmentation in all the parturients (P < 0.001). Mean and minimum (but not maximum) uterine electrical activity during oxytocin infusion correlated with the baseline uterine activity. The delta EUM index was not significantly affected by demographic or obstetric parameters. There was no correlation between the delta EUM index and time to delivery or the mean EUM index during oxytocin administration and time to delivery. CONCLUSIONS: Uterine electrical activity as evaluated by EUM is significantly intensified following oxytocin administration, regardless of obstetrical characteristics, and is correlated with the baseline uterine electrical activity prior to oxytocin infusion.


Assuntos
Eletromiografia/métodos , Miométrio/fisiologia , Ocitocina/administração & dosagem , Tocolíticos/farmacologia , Contração Uterina/efeitos dos fármacos , Monitorização Uterina , Útero/efeitos dos fármacos , Adulto , Feminino , Humanos , Trabalho de Parto Induzido/métodos , Trabalho de Parto , Ocitocina/farmacologia , Gravidez , Estudos Prospectivos , Tocolíticos/uso terapêutico , Contração Uterina/metabolismo , Útero/fisiologia
9.
J Perinatol ; 37(12): 1285-1291, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28906497

RESUMO

OBJECTIVE: The sonographic prediction of fetal macrosomia affects obstetrical decision regarding the timing and mode of delivery. We aimed to compare the accuracy of various formulas for prediction of macrosomia at different thresholds. STUDY DESIGN: This was a retrospective cohort study of singleton gestations at term, with fetal biometrical measurements taken up to 7 days prior to delivery (2007 to 2014). Sonographic estimated fetal weight was calculated using 20 previously published formulas. Macrosomia prediction was evaluated for every formula utilizing: (1) measures of accuracy (sensitivity, specificity and so on); (2) comparison of the systematic and random errors (SE and RE), and the proportion of estimates within 10% of actual birth weight for macrosomic and non-macrosomic neonates. Performance measurements were evaluated for different macrosomia thresholds: 4000, 4250 and 4500 g. Best performing formula for every threshold was defined as the one with the lowest Euclidean distance (=SQRT(SE2+RE2)). RESULTS: Out of 7977 women who met the inclusion criteria, 754 (9.4%) delivered a neonate weighing ⩾4000 g, 266 (3.3%) delivered a neonate weighing⩾4250 g and 75 (0.9%) delivered a neonate weighing⩾4500 g. Considerable variability was noted between the accuracy parameters of the different formulas, with Woo's formula integrating Abdominal circumference (AC) and femur length (FL) as the most sensitive formula with the highest negative predictive value for all thresholds and Woo's formula using AC, FL and biparietal diameter (BPD) as the most specific for all thresholds. The same formula also demonstrated the best overall accuracy. Regardless of threshold chosen, 80% or more of formulas demonstrated negative systematic error, meaning lower EFW than actual birthweight. As for the Euclidean distance, Hadlock's formula (AC, FL and BPD) ranked the highest for the 4000 and 4250 g thresholds, whereas Shepard's formula (AC and BPD) ranked the highest for the 4500 g threshold. CONCLUSION: Considerable variability exist between formulas for prediction of neonatal macrosomia. Formulas by Hadlock's and Shepard's utilizing AC, BPD±FL were most accurate for macrosomia prediction at 4000, 4250 and 4500 g thresholds, respectively.


Assuntos
Macrossomia Fetal/diagnóstico por imagem , Peso Fetal , Ultrassonografia Pré-Natal/métodos , Abdome/diagnóstico por imagem , Abdome/embriologia , Adulto , Peso ao Nascer , Feminino , Fêmur/diagnóstico por imagem , Fêmur/embriologia , Macrossomia Fetal/classificação , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Osso Parietal/diagnóstico por imagem , Osso Parietal/embriologia , Valor Preditivo dos Testes , Gravidez , Estudos Retrospectivos
10.
J Perinatol ; 37(5): 513-517, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28151496

RESUMO

OBJECTIVE: As sonographic estimation of fetal weight (EFW) carries substantial impact, especially in large-for-gestational-age (LGA) neonates, we aimed to compare the accuracy of various formulas for prediction of LGA neonates. STUDY DESIGN: Retrospective cohort study of singleton gestations at term, with EFW up to 7 days before delivery (2007 to 2014). Small-for-gestational-age neonates were excluded. LGA prediction for various formulas was evaluated by: (i) measures of performance (sensitivity, specificity, etc.); (ii) systematic and random errors (SE and RE) and the proportion of estimates (POEs) exceeding 10% of actual birth weight. Best performing formula was defined as the one with the lowest Euclidean distance [=square root of (SE2+RE2)]. RESULTS: Out of 62 102 deliveries, 7996 met inclusion criteria, of which 1618 neonates were LGA (22%). There was a considerable variation in sensitivity (74.6±16.3%, 23.5% to 99%), specificity (86.3±10.6%, 51.7% to 99.6%), positive predictive value (64.9±12.4%, 35.6% to 93.8%), positive likelihood ratio (LR; 9.3±10.9, 2.1 to 54.2) and negative LR (0.3±0.16, 0.02 to 0.8), a mild variation in the negative predictive value (92.9±3.7%, 82.3% to 99.5%) and a minimal variation in the area under the curve (94.3%, 93.0 to 95.1; mean±s.d., range for all). Absolute SE was higher for the LGA group in 11/20 formulas (55%). The RE and POE were lower in 19/20 (95%) and 14/20 (70%) for the LGA neonates, respectively. CONCLUSION: There is a wide variation in EFW formulas performance for detecting LGA. Hadlock's formula (1985) combining abdominal circumference, femur length and biparietal diameter ranked highest.


Assuntos
Peso ao Nascer , Peso Fetal , Feto/diagnóstico por imagem , Idade Gestacional , Ultrassonografia Pré-Natal/normas , Adulto , Feminino , Humanos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Israel , Masculino , Gravidez , Estudos Retrospectivos , Sensibilidade e Especificidade , Centros de Atenção Terciária , Ultrassonografia Pré-Natal/métodos
11.
Clin Exp Obstet Gynecol ; 44(3): 440-443, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29949289

RESUMO

PURPOSE: To develop and evaluate an algorithm for computerized evaluation and measurement of the endometrial-myometrial junction (EMJ). MATERIALS AND METHODS: The advanced image processing toolbox of the Matlab software package was used for identificiation and quantitative analysis of the EMJ area on three-dimensional (3D) rendered coronal plane uterine images, with clear-cut borders of the EMJ. The algorithm was used to process the images and calculate the geometric parameters characterizing the identified EM The manual measurements of the maximum thickness of the EMJ were compared to automated measurements performed by the algorithm on the same images. RESULTS: For all three interfaces, the mean maximum manual measurement was less than the mean maximui computed measurement. The differences between the two measurements were not statistically significant (p = 0.275, 0.608 and 0.41 for the right wall, left wall, and fundus, respectively). The mean systematic and random errors ranged from 5.4% tol9.3% and 20.4 to 48.6%, respectively. Pearson correlations for the right wall, left wall and fundus (r = 0.642, p = 0.001; r = 0.730, p < 0.001, and r 0.694, p < 0.001, respectively) were good. CONCLUSIONS: Maximum EMJ thickness measurements performed by the innovative Matla software algorithm are as accurate as manual measurements, and have the potential to reduce inter-observer variability.


Assuntos
Algoritmos , Processamento de Imagem Assistida por Computador , Imageamento Tridimensional , Software , Útero/diagnóstico por imagem , Útero/patologia , Feminino , Humanos , Projetos Piloto
12.
Eur J Clin Microbiol Infect Dis ; 35(3): 443-6, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26740325

RESUMO

The purpose of this investigation was to evaluate the patient characteristics, clinical manifestations, microbiology, and modes of treatment of a large cohort of women with acute Bartholin's abscess, from a single medical center. A retrospective study was undertaken of all women diagnosed with acute Bartholin's gland abscess who were admitted to the gynecology department in a university-affiliated tertiary hospital in central Israel from January 2004 to December 2013. A total of 267 women were included in the study. The mean age at diagnosis was 33.5 ± 12.1 years and the mean hospitalization period was 1.4 ± 0.9 days. Pain presented in 152 (56.9 %), swelling in 81 (30.3 %), and fever in 34 (12.7 %). Leukocytosis was detected in 149 (55.8 %). The three main treatment modalities were: antibiotics (75.7 %), abscess drainage (19.1 %), and marsupialization (80.9 %). Bacterial infections were detected in 154 (57.7 %) cultures, Escherichia coli presented in 59 (22.1 %), and Streptococcus species in 27 (10.1 %). The clinical and patient characteristics were similar between women with bacterial and sterile Bartholin's abscesses, though leukocytosis was more prevalent among women with bacterial infections. E. coli was the single most frequent pathogen in cultures of acute Bartholin's abscess. Respiratory tract-associated organisms were also common. This study indicates the polymicrobial spectrum of acute Bartholin's abscess.


Assuntos
Abscesso/diagnóstico , Abscesso/microbiologia , Glândulas Vestibulares Maiores/microbiologia , Glândulas Vestibulares Maiores/patologia , Abscesso/cirurgia , Doença Aguda , Adulto , Infecções Bacterianas/diagnóstico , Infecções Bacterianas/microbiologia , Infecções Bacterianas/cirurgia , Estudos de Coortes , Terapia Combinada , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Adulto Jovem
13.
Ultrasound Obstet Gynecol ; 47(2): 217-23, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25728404

RESUMO

OBJECTIVE: To determine the association between sonographic assessment of fetal biparietal diameter (BPD) and pregnancy outcome. METHODS: This was a retrospective cohort study of pregnancies at 37-42 weeks of gestation which had antepartum sonographic measurement of BPD within 7 days before delivery. Eligibility was limited to singleton pregnancies with neither known structural or chromosomal abnormalities nor prelabor Cesarean delivery (CD). The association of BPD with outcome was analyzed using multivariate logistic regression, receiver-operating characteristics curves and stratification according to BPD quartiles. RESULTS: In total, 3229 women were eligible for analysis, of whom 2483 (76.9%) had a spontaneous vaginal delivery (SVD), 418 (12.9%) underwent operative vaginal delivery (OVD) and 328 (10.2%) underwent CD. The mean BPD in the obstetric intervention groups (OVD and CD) was significantly higher than that in the SVD group (P < 0.001). After adjusting for confounders, increased BPD was an independent risk factor such that higher values of BPD were associated with progressively higher risk of obstetric intervention (adjusted odds ratio, 1.05 for each 1-mm increase in BPD (95% CI, 1.02-1.09)), but no clear cut-off value for obstetric intervention was found. The fourth quartile group (BPD ≥ 97 mm) was associated with a significantly lower SVD rate (P < 0.001) and higher OVD rate (P = 0.04), relative to the first (BPD 88-90 mm) and second (BPD 91-93 mm) quartile groups, with no apparent adverse impact on immediate neonatal outcome. CONCLUSIONS: Increased BPD within the week prior to delivery is an independent risk factor such that higher values of BPD are associated with progressively higher risk of obstetric intervention; however, in our experience, no adverse neonatal outcome resulted from such intervention. Thus, increased BPD should not discourage a trial of vaginal delivery.


Assuntos
Parto Obstétrico/estatística & dados numéricos , Desenvolvimento Fetal , Lobo Parietal/diagnóstico por imagem , Resultado da Gravidez , Ultrassonografia Pré-Natal/métodos , Adulto , Parto Obstétrico/métodos , Feminino , Humanos , Modelos Logísticos , Análise Multivariada , Complicações do Trabalho de Parto/etiologia , Tamanho do Órgão , Lobo Parietal/embriologia , Lobo Parietal/crescimento & desenvolvimento , Valor Preditivo dos Testes , Gravidez , Curva ROC , Estudos Retrospectivos , Fatores de Risco
14.
Int J Surg ; 20: 75-9, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26079498

RESUMO

INTRODUCTION: We investigated parameters associated with recurrence after partial (Le Fort) colpocleisis surgery for severe pelvic organ prolapse (POP) in elderly women. METHODS: A retrospective cohort study included all women who underwent partial colpocleisis in a single tertiary center from February 2007 through July 2013 for stage 3 or 4 triple compartment prolapse. Inclusion criteria were age over 60, sexually inactive, medical comorbidities, increased risk for comprehensive reconstructive pelvic surgery, and refusal or failure to use a pessary as a conservative non-surgical treatment. Exclusion criteria were post-menopausal bleeding, pelvic malignancy, and the desire to preserve coital function. RESULTS: The study group included 47 women of mean age 77.3 ± 8.2 (range 61-91 years). All had medical comorbidities. Fourteen patients (29.8%) had undergone previous hysterectomy. All patients underwent partial colpocleisis and perineorrhaphy. Seven women (14.9%) underwent mid-urethral sling for urinary incontinence. Mean follow-up was 14.8 ± 10.3 months (range, 2-37 months) and mean hospitalization, 3.5 ± 1.5 days (range, 2-9 days). There were no intraoperative complications. Postoperative complications comprised lower urinary tract infection (n = 2). Objective cure (according to vaginal examination) was 80.9% (38/47), and subjective (according to symptoms), 91.5% (43/47). No patient regretted the loss of sexual function. The main reasons for prolapse recurrence were statistically significant longer post-operative vaginal length and wider genital hiatus. CONCLUSIONS: Objective and subjective cure rates of Le Fort colpocleisis for the treatment of severe POP were high with low morbidity. Parameters associated with prolapse recurrence were longer postoperative vaginal length and wider genital hiatus.


Assuntos
Colpotomia/efeitos adversos , Prolapso de Órgão Pélvico/cirurgia , Idoso , Idoso de 80 Anos ou mais , Colpotomia/métodos , Feminino , Humanos , Histerectomia , Pessoa de Meia-Idade , Prolapso de Órgão Pélvico/complicações , Prolapso de Órgão Pélvico/patologia , Complicações Pós-Operatórias/etiologia , Recidiva , Estudos Retrospectivos , Fatores de Risco , Incontinência Urinária/etiologia , Incontinência Urinária/cirurgia , Vagina/patologia , Vagina/cirurgia
15.
Eur J Pain ; 19(9): 1382-8, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26032446

RESUMO

BACKGROUND: Quantitative sensory testing (QST) measures response to painful stimuli and has been used to predict post-caesarean pain. Pain reported upon intravenous cannulation was shown to predict epidural analgesic use and pain intensity during labour. We hypothesized that pain intensity reported by women upon local anaesthesia injection (ILA) for spinal anaesthesia may predict acute pain after caesarean delivery (CD). METHODS: In a prospective observational trial, 229 women undergoing elective CD under spinal anaesthesia were enrolled. Using standardized script before ILA, women received ILA (lidocaine 1% 2.5 mL via 25 G needle), and provided an ILA score after the injection [verbal numeric pain scale (VNPS); 0-100]. Demographic data, average, peak pain (at rest, with movement and uterine cramping) and analgesic requests were recorded for the first 24 h. RESULTS: Fourteen percent of women experienced severe pain (VNPS ≥70) upon ILA. Good correlation was noted between ILA and pain scores at rest and upon mobilization during the 24 h following surgery (average resting pain r = 0.529, p < 0.001, average pain at mobilization r = 0.483, p < 0.0001). Severe acute postoperative pain (VNPS ≥70) was predicted by severe ILA pain with a sensitivity of 91.6% and specificity of 93.3%. CONCLUSION: This is the first study evaluating a clinical measure to predict post-caesarean pain. Our main findings were that 14% of women experience severe pain upon ILA, which was associated with increased pain during the first 24 h.


Assuntos
Dor Aguda/diagnóstico , Raquianestesia/efeitos adversos , Cesárea/efeitos adversos , Medição da Dor/métodos , Dor Pós-Operatória/diagnóstico , Dor Aguda/etiologia , Adulto , Anestésicos Locais/administração & dosagem , Feminino , Humanos , Lidocaína/administração & dosagem , Gravidez , Prognóstico , Estudos Prospectivos
16.
Eur Psychiatry ; 27(6): 470-5, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22512931

RESUMO

OBJECTIVES: This study sought to determine the clinical correlates of adolescents with cannabis use and no additional drug use (CU) compared to adolescents with no drug use (NDU) among a group of adolescent psychiatric inpatients in Israel. METHODS: Two hundred and thirty-six patients consecutively admitted to an adolescent inpatient unit at a university-affiliated mental health center in Israel during a 3-year period were screened. Individuals with polydrug use were excluded from the study. RESULTS: Prevalence of cannabis use was 13%. In the CU group, 39% were diagnosed with attention deficit and disruptive behavior disorders compared with 16% in the NDU group. Antipsychotics were the most common medications prescribed in both groups. Mood stabilizers were more frequently prescribed to CU than to NDU patients (39% vs 16%, respectively). A higher prevalence of alcohol abuse and criminal behaviors was found among CU compared to NDU patients (61% and 39% vs 6% and 4%, respectively). CONCLUSIONS: The high prevalence of disruptive behaviors and frequent treatment with antipsychotics and mood stabilizers in the CU group may be related to the strong association between externalizing behavior and cannabis use and the non-specific pharmacological treatment of disruptive behaviors. Formal screening for cannabis use should be considered in psychiatric facilities. Specifically, adolescents with disruptive behaviors could benefit from early interventions, before and after cannabis initiation.


Assuntos
Pacientes Internados , Abuso de Maconha/diagnóstico , Abuso de Maconha/epidemiologia , Adolescente , Alcoolismo/epidemiologia , Criança , Feminino , Humanos , Israel/epidemiologia , Masculino , Transtornos Mentais/epidemiologia , Prevalência , Adulto Jovem
17.
Qual Saf Health Care ; 12(1): 35-9, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12571343

RESUMO

The development of a medical risk management programme based on the aviation safety approach and its implementation in a large ambulatory healthcare organisation is described. The following key safety principles were applied: (1). errors inevitably occur and usually derive from faulty system design, not from negligence; (2). accident prevention should be an ongoing process based on open and full reporting; (3). major accidents are only the "tip of the iceberg" of processes that indicate possibilities for organisational learning. Reporting physicians were granted immunity, which encouraged open reporting of errors. A telephone "hotline" served the medical staff for direct reporting and receipt of emotional support and medical guidance. Any adverse event which had learning potential was debriefed, while focusing on the human cause of error within a systemic context. Specific recommendations were formulated to rectify processes conducive to error when failures were identified. During the first 5 years of implementation, the aviation safety concept and tools were successfully adapted to ambulatory care, fostering a culture of greater concern for patient safety through risk management while providing support to the medical staff.


Assuntos
Assistência Ambulatorial/normas , Aviação/normas , Difusão de Inovações , Erros Médicos/prevenção & controle , Gestão de Riscos , Gestão da Segurança/métodos , Pesquisa sobre Serviços de Saúde , Humanos , Israel , Avaliação de Processos em Cuidados de Saúde , Desenvolvimento de Programas , Gestão da Qualidade Total/métodos
18.
Early Pregnancy (Cherry Hill) ; 5(3): 153-63, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11753529

RESUMO

To determine whether there is a correlation between the proportion of aneuploid cells in peripheral lymphocytes and the karyotype of the abortus in recurrent miscarriage. 40 couples with recurrent miscarriage and their abortuses were cytogenetically analyzed according to the analysis of 60 cells per proband. Women were divided into two groups according to the proportion of chromosomally abnormal cells in the abortus. Chromosomal analysis was performed using G-banding with trypsin-Giemsa in parental peripheral blood and in the abortus. 20 of the 40 abortuses had a chromosomally abberant karyotype. 65% of parents aborting an embryo with with an increased proportion of chromosomally aberrant cells, had more than 10% aneuploid cells in their peripheral lymphocytes. However, only 12.5% of couples aborting an embryo with chromosomally normal cells had increased rates of aneuploidy. An increased proportion of aneuploid cells was found in the lymphocytes of recurrently aborting couples who repeatedly abort chromosomally abnormal fetuses. Mitotic instability in the lymphocytes may indicate a predisposition to instability at meiosis leading to a chromosomal abberations in the embryo and its subsequent abortion.


Assuntos
Aborto Habitual/genética , Aneuploidia , Aberrações Cromossômicas , Pais , Placenta/patologia , Adulto , Células Cultivadas , Técnicas de Cultura , Feminino , Testes Genéticos , Humanos , Cariotipagem , Masculino , Pessoa de Meia-Idade , Placenta/química , Placenta/metabolismo , Gravidez
19.
Eur J Haematol ; 66(4): 263-71, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11380606

RESUMO

B-chronic lymphocytic leukemia (B-CLL) is a disease caused primarily by defects in the apoptosis mechanism. AN-9, a butyric acid (BA) derivative, is a potent differentiating and an anti-cancer drug that induces apoptosis in HL-60 cells. Herein we show the affect of AN-9, alone and in combination with doxorubicin, on cell cultures from B-CLL patients. Cells from 17 patients were cultured and tested for viability, apoptosis, bcl-2 and bax protein expression. Exposure of B-CLL cell cultures to AN-9 was accompanied by apoptosis and a marked viability loss (up to 46%, p=0.0017). AN-9 reduced up to 51% (p=0.0017) the levels of bcl-2 in 57% of the cultures that express bcl-2. The combination of low concentrations of AN-9 and doxorubicin more than additively enhanced apoptosis and reduced bcl-2 levels in B-CLL cultures which were resistant to AN-9. AN-9 enhanced bax expression up to 58%(p=0.008) in cultures from 53% of the patients, but had no effect on bax levels when combined with doxorubicin. In conclusion, AN-9 alone reduced bcl-2 and enhanced bax expression in cultures from B-CLL patients, and the reduction of bcl-2 levels in combination with doxorubicin was greater than additive. These results may be beneficial in possible future combination therapy with AN-9 in B-CLL.


Assuntos
Butiratos/farmacologia , Doxorrubicina/farmacologia , Leucemia Linfocítica Crônica de Células B/patologia , Proteínas Proto-Oncogênicas c-bcl-2/efeitos dos fármacos , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Sobrevivência Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Citometria de Fluxo , Humanos , Leucemia Linfocítica Crônica de Células B/metabolismo , Proteínas Proto-Oncogênicas/efeitos dos fármacos , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Células Tumorais Cultivadas/efeitos dos fármacos , Proteína X Associada a bcl-2
20.
Fertil Steril ; 75(4): 678-82, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11287018

RESUMO

OBJECTIVE: To assess the chromosomal aberrations in the abortus in recurrent miscarriage and the live birth rate after a euploid or aneuploid miscarriage. DESIGN: Retrospective analysis. SETTING: Tertiary referral unit in university hospital. PATIENT(S): One hundred sixty-seven patients with 3 to 16 miscarriages before 20 weeks. INTERVENTION(S): Material collected at curettage from 167 abortuses was analyzed by standard G-banding techniques. MAIN OUTCOME MEASURE(S): The incidence of aberrations and the outcome of the subsequent pregnancy were assessed according to the embryonic karyotype. RESULT(S): In this study 125 specimens were successfully karyotyped. Of these, 29% (36 of 125) had chromosome aberrations; 94% of the aberrations were aneuploidy, and 6% were structural. The most prevalent anomalies were chromosome 16, 18, and 21 trisomies, triploidy, and monosomy X. After an aneuploid miscarriage, there was a 68% subsequent live birth rate (13 of 19) compared to the 41% (16 of 39) rate after a euploid abortion. CONCLUSION(S): The low (29%) incidence of aberrations indicates that alternative mechanisms may be responsible for the majority of recurrent miscarriages. These figures provide a basis for assessing the efficacy of therapy for recurrent miscarriage. If further studies confirm that patients with karyotypically abnormal fetuses have a good prognosis, an informed decision can be made as to whether further investigations and treatment should be undertaken.


Assuntos
Aborto Habitual/genética , Aberrações Cromossômicas , Cariotipagem , Adulto , Aneuploidia , Feminino , Feto , Hospitais Universitários , Humanos , Recém-Nascido , Israel , Pessoa de Meia-Idade , Monossomia , Razão de Chances , Poliploidia , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Aberrações dos Cromossomos Sexuais , Translocação Genética , Trissomia , Cromossomo X
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...