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1.
Article in English | IMSEAR | ID: sea-40472

ABSTRACT

OBJECTIVES: To summarize the experience and evaluate the performance of the Hat Yai maternal serum screening (MSS) program. SETTING: The Hat Yai MSS program between 16 February 2003 and 11 March 2004. MATERIAL AND METHOD: The uptake of screening was 999 in 1,040 women (96.0%), between 14 to 20 weeks of gestation with the triple markers: Alpha-fetoprotein (AFP), human Chorionic Gonadotropin (hCG), and unconjugated Estriol (uE3) by Immulite chemiluminescent immunoassay system, Diagnostic Product Corporation (DPC). The risk cut-off for Down 's syndrome is one in 250 or greater, based on software for prenatal Down's syndrome risk calculation, by Prisca 3.5 DPC. RESULTS: There were 119 in 999 cases (11.9%) of the triple test positive. Amniocentesis had been performed on voluntary basis, and the uptake rate of amniocentesis following a positive Down's syndrome screening was 104 in 119 cases (87.3%). Based on clinical diagnosis of Down's syndrome in the newborns of non-amniocentesis mothers, assuming that normal looking babies were not Down's syndrome, the sensitivity (SENS), specificity (SPEC), positive predictive value (PPV), and negative predictive value (NPV) of all chromosomal abnormalities were 85.7%, 88.6%, 5.0%, and 99.8% respectively. The false positive rate was 113 in 992 cases (11.4%). Whereas, the SENS, SPEC, PPV and NPV of Down's syndrome were 100%, 88.4%, 3.4%, and 100% respectively. The false positive rate was 115 in 995 cases (11.6%). The mean level, median level, and multiple of median (MoM) of triple markers were demonstrated. CONCLUSION: The Down's syndrome screening is a systematic application of a test to identify subjects at increased risk of a specific disorder; of course it is not diagnostic, but to benefit making decision regarding further amniocentesis. The sensitivity of Prisca 3.5 software was satisfactory but false positive rate was remarkably high. It needs further standardization with adjusted MoM values.


Subject(s)
Adolescent , Adult , Amniocentesis , Chorionic Gonadotropin/analysis , Down Syndrome/diagnosis , Estriol/analysis , Female , Gestational Age , Humans , Infant, Newborn , Middle Aged , Neonatal Screening , Pilot Projects , Pregnancy , Pregnancy Trimester, Second , Risk Factors , Sensitivity and Specificity , Thailand , alpha-Fetoproteins/analysis
2.
Rev. obstet. ginecol. Venezuela ; 67(3): 143-151, sept. 2007. tab
Article in Spanish | LILACS | ID: lil-522906

ABSTRACT

Evaluar las concentraciones de estriol salival, presencia de vaginosis bacteriana y longitud cervical como predictores del parto pretérmino, en pacientes asintomáticas. Estudio descriptivo, prospectivo, comparativo, en embarazadas divididas en dos grupos. El grupo estudio con riesgo (A) y el grupo control (B). Consulta prenatal del Hospital General del Oeste "Dr. José Gregorio Hernández". De las 60 pacientes evaluadas, 5 (8,33 por ciento) presentaron parto pretérmino, de las cuales 4 (80 por ciento) eran del grupo estudio y 1 (20 por ciento) del grupo control. Este último fue inducido por indicaciones médicas. Hubo 3 casos (5,0 por ciento) de amenazas de parto pretérmino pertenecientes al grupo estudio. En las pacientes con parto pretérmino la longitud del cuello uterino entre las 16 y 18 semanas de gestación osciló entre 30 y 445,6 mm con un promedio de 38,05 ± 6,38 mm. Entre las 24 y 28 semanas los valores fueron entre 24 y 25 mm con un promedio de 24,78 ± 0,68 mm. En las pacientes con parto pretérmino la vaginosis bacteriana entre las 16 y 18 semanas se presentó en 3 pacientes; entre las 24 y 28 semanas todas las pacientes tuvieron resultados positivos. Las concentraciones de estriol libre en saliva en las pacientes con parto pretérmino a las 22 semanas osciló entre 0,3 y 3,5 ng/mL con un promedio de 1,55 ± 1,45 ng/mL. A las 29 semanas de 0,8 y 3,7 ng/mL, promedio 1,73 ± 1,0 y a las 36 semanas de 2,3 y 3,2 ng/mL promedio 0,85 ± 1,10 ng/mL . El acortamiento del cuello uterino (menor o igual a 25 mm) determinado a través de ecosonograma transvaginal entre las 24 y 28 semanas, está asociado de manera significante a parto pretérmino en pacientes asintomáticas con alto riesgo. En contraste, el aumento de estriol libre en saliva no está asociado de manera significante con parto pretérmino en estas pacientes. La vaginosis bacteriana se observó con mayor frecuencia en pacientes con riesgo. En contraste, el aumento de estirol libre en saliva no está asociado de...


To evaluate the salivary estriol concentration, presence of bacterial vaginosis and cervical length as predictors of preterm labor in asymptomatic patients. Descriptive, prospective and comparative study, in pregnant patients divided into two groups. The study group (A) and the control group (B). Outpatient prenatal clinic at the "Hospital General del Oeste "Dr. Jose Gregorio Hernandez". From 60 patients evaluated, 5 (8.33 percent) had preterm delivery, 4 (80 percent) belong to the group A and 1 (20 percent) to the group B. The last one was induced by medical reasons. There were 3 cases (5.0 percent) of threatening of preterm delivery from the group A. In the patients with preterm delivery the length of the uterine cervix between 16 to 18 weeks of gestation ranged from 30 to 45.6 mm with mean of 38.05 ± 6.38 mm. Between the 24 and 28 weeks the values were between 24 and 25 mm with mean of 24.78 ± 0.68 mm. In the patients with preterm delivery the bacterial vaginosis between 16 and 18 weeks was present in 3 patients; between 24 and 28 weeks all patients had positive results. The concentrations of free estradiol in saliva in patients with preterm delivery ranged from 0.3 to 3.5 ng/mL, with a mean of 1,55 ± 1,45 ng/mL. At 29 weeks from 0.8 to 3.7 ng/mL, mean 1.73 ± 1.0 and at 36 weeks from 2.3 and 3.2 ng/mL with mean of 0.85 ± 1.10 ng/mL. The shortening of uterine cervix (lower or equal to 25 mm) determined by transvaginal ultrasound between 24 and 28 weeks, is significatly associated to preterm delivery in asymptomatic patients with high risk. On the other hand, the increase of free estriol in saliva is not significantly associated to preterm delivery in these patients. Bacterial vaginosis was observed more frequently in patients with high risk of preterm delivery


Subject(s)
Humans , Female , Pregnancy , Cervix Uteri , Estriol/analysis , Premature Birth , Obstetric Labor, Premature , Vaginosis, Bacterial/pathology , Obstetrics
3.
Femina ; 35(6): 391-397, jun. 2007. tab
Article in Portuguese | LILACS | ID: lil-490805

ABSTRACT

Diversos estudos apontam que a prematuridade espontânea possui vários mecanismos desencadeantes: infecção decidual ou corioamnionite, distensão uterina patológica, ativação do eixo hipotálamo-hipófise-adrenal materno-fetal e o sangramento decidual. A detecção precoce do parto prematuro possibilita a atuação do obstetra na sua prevenção. Vários marcadores do parto prematuro já foram sugeridos, embora alguns freqüentemente citados na literatura tenham sido pouco utilizados na prática, tais como: estriol salivar, hormônio liberador de corticotrofinas (CRH)e alguns mediadores inflamatórios como as interleucinas (IL) e o fator de necrose tumoral (FNT). Os estudos que foram realizados utilizando estes marcadores relatam que estes podem ser úteis em gestantes sintomáticas. Por outro lado, sua utilização no grupo de gestantes assintomáticas ainda mostra elevado número de resultados falso-positivos.


Subject(s)
Female , Pregnancy , C-Reactive Protein , Corticotropin-Releasing Hormone , Cytokines , Estriol/analysis , Metalloproteases , Biomarkers/blood , Obstetric Labor, Premature/diagnosis , Obstetric Labor, Premature/prevention & control , Prognosis
4.
Rev. ginecol. obstet ; 5(1): 34-45, jan. 1994.
Article in Portuguese | LILACS | ID: lil-154459

ABSTRACT

Analise do estriol salivar feita em 18 gestantes, sendo nove gravidas, com OGTT-3hs alterado durante o periodo pre-natal, controladas somente com dieta, classe A de Priscilla White, pertencentes ao grupo um de estudo, e nove gestantes que fizeram uso de insulina durante a gravidez, sendo tres tipo II e seis tipo I (insulino-dependentes), pertencentes ao grupo II de estudo, acompanhadas no pre-natal da Escola Paulista de Medicina no periodo de janeiro de 1987 a julho de 1989. A coleta foi realizada semanalmente, obtendo-se tres amostras, em intervalos de duas horas...


Subject(s)
Humans , Female , Pregnancy , Diabetes Mellitus/physiopathology , Estriol/analysis , Saliva , Blood Glucose/analysis , Estriol/administration & dosage , Estriol/metabolism , Fetal Distress/prevention & control , Fetal Monitoring , Prospective Studies , Radioimmunoassay
5.
Arq. méd. ABC ; 14(1): 7-13, 1991. ilus, tab
Article in Portuguese | LILACS | ID: lil-102796

ABSTRACT

Conceituando o sofrimento fetal como complexa alteraçäo metabólica, além da anoxia que prejudica o concepto em graus variados, é discutida a etiologia patogenia, diagnóstico, prognóstico e tratamento


Subject(s)
Humans , Female , Pregnancy , Fetal Distress , Philippines , Placenta/enzymology , Cardiotocography , Estriol/analysis , Fetal Hypoxia/complications , Fetal Blood/chemistry , Fetal Death/complications , Fetal Distress/diagnosis , Fetal Distress/etiology , Fetal Distress/therapy , Maternal-Fetal Exchange , Heart Rate, Fetal , Amniotic Fluid/chemistry , Prognosis
8.
Obstet. ginecol. latinoam ; 44(9/10): 348-50, set.-oct. 1986.
Article in Spanish | LILACS | ID: lil-46136

ABSTRACT

Se presenta un estudio prospectivo realizado en nueve mujeres embarazadas con hipertensión inducida por el embarazo, en las que se realizaron mediciones de estriol total, progesterona y HPL, por métodos de RIA, a las 32, 34 y semanas de gestación. Los valores obtenidos en las tres hormonas dosadas resultaron significativamente más bajas que los habituales para el mismo laboratorio utilizado, por lo que se concluye que resultan de valor en la prevención, pronóstico y manejo de la patología gestósica del embarazo


Subject(s)
Pregnancy , Humans , Female , Estriol/analysis , Hypertension/diagnosis , Placental Lactogen/analysis , Pregnancy Complications, Cardiovascular , Progesterone/analysis , Radioimmunoassay
9.
Rev. bras. ginecol. obstet ; 7(4): 148-53, jul.-ago. 1985. tab
Article in Portuguese | LILACS | ID: lil-32236

ABSTRACT

Foi objetivo deste trabalho estabelecer o comportamento do estriol salivar em gestantes normais. A coleta do material foi realizada sempre após a avaliaçäo clínica. Constituíram-se três grupos: Grupo 1: 209 amostras de gestantes em diferentes idades gestacionais que parturiram recém-nascidos normais. Grupo 2: 14 pacientes em diferentes idades gestacionais, com amostras colhidas durante cinco dias seguidos, uma por dia, entre 8 e 10h da manhä. Grupo 3: Quatro pacientes que colheram amostras durante o mesmo dia (mínimo de quatro, máximo de nove). Foi analisado um total de 69 amostras em 10 períodos. A interpretaçäo conjunta dos achados do estriol salivar nos três grupos leva-nos a estabelecer que: a. valores isolados näo devem ser interpretados; säo necessárias múltiplas amostras (no mínimo, três) seriadas e espaçadas de pelo menos duas horas; b. a paciente deve ser analisada em funçäo do seu padräo individual, isto é, seus valores anteriores representam a referência para a interpretaçäo do atual; c. as flutuaçöes diárias em gestantes podem ser täo grandes quanto 45%; d. as flutuaçöes episódicas diurnais säo quantitativamente mais importantes; e. as variaçöes diurnais do estriol, bem como as observadas no fluido salivar no evoluir da gravidez, säo semelhantes às relatadas no soro


Subject(s)
Humans , Estriol/analysis , Pregnancy , Saliva/analysis , Gestational Age
10.
Journal of the Faculty of Medicine-Baghdad. 1983; 25 (3-4): 49-59
in English | IMEMR | ID: emr-3369

ABSTRACT

Total serum [free and conjugated] estriol in normal and hypertensive pregnant Iraqi women during the third trimester, was studied using radioimmunoassay. A uniform rise in total serum estriol level was found in normal pregnancy until term. Low estriol values were found in fetal growth retardation of hypertensive pregnancies and other fetal jeopardy


Subject(s)
Estriol/analysis , Comparative Study , Hypertension
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