RESUMEN
The Actim Partus test has been shown to be a useful predictor of pre-term birth in symptomatic women, but limited research has been carried out in high-risk asymptomatic women. This is a pilot study to evaluate the use of this test as a direct comparator with the fetal fibronectin test. All asymptomatic high-risk women attending a pre-term surveillance clinic over a 9-month period, took an Actim Partus and fetal fibronectin test, between 23(+0)-24(+6) weeks' gestation. A total of 45 women were eligible. The positive and negative predictive values of the Actim Partus test for delivery at ≤ 37 weeks' gestation were 0% and 70%, respectively, compared with the fetal fibronectin test, with values of 67% and 79%, respectively. It was concluded that the Actim Partus test did not perform well as a predictor of pre-term birth in high-risk asymptomatic women.
Asunto(s)
Nacimiento Prematuro/diagnóstico , Frotis Vaginal , Adulto , Biomarcadores/análisis , Femenino , Fibronectinas/análisis , Humanos , Proteína 1 de Unión a Factor de Crecimiento Similar a la Insulina/análisis , Proyectos Piloto , Valor Predictivo de las Pruebas , Embarazo , Factores de Riesgo , Sensibilidad y EspecificidadRESUMEN
OBJECTIVE: To assess the accuracy of fetal fibronectin (fFN) testing for prediction of preterm labour in asymptomatic high-risk women with a cervical cerclage. DESIGN: Retrospective observational study. SETTING: United Kingdom. POPULATION: Nine hundred and ten asymptomatic women at high-risk of Preterm birth referred to specialist antenatal clinics and undergoing fFN testing between November 1997 and December 2007. METHODS: Women had fFN tests taken between 23(+0) and 27(+6) weeks' gestation, on one or more occasions. MAIN OUTCOME MEASURES: Sensitivity, specificity, positive predictive values and negative predictive values of fFN testing for predicting delivery <30 and <37 weeks were compared in those with and without cerclage. RESULTS: For delivery <30 weeks' gestation, the specificity of fFN testing was significantly lower in women with cervical cerclage (77% vs 90%; P < or = 0.00001). The sensitivity of the test was similar between the groups (78.6 (no-cerclage) vs 60% (cerclage); P > 0.4). The negative predictive value of the fFN test for delivery <30 weeks was high in both groups (>98%). CONCLUSIONS: Asymptomatic high-risk women with cerclage in situ are more likely to have a false positive fFN test. The negative predictive value is similar.
Asunto(s)
Cerclaje Cervical , Fibronectinas/análisis , Trabajo de Parto Prematuro/diagnóstico , Adulto , Biomarcadores/análisis , Métodos Epidemiológicos , Reacciones Falso Positivas , Femenino , Humanos , Tamizaje Masivo/métodos , Trabajo de Parto Prematuro/prevención & control , Embarazo , Atención Prenatal/métodos , Pronóstico , Adulto JovenRESUMEN
Paraneoplastic syndromes are a collection of disorders affecting an organ or tissue caused by cancer but occurring at a site distant from the primary or metastases. Dermatomyositis can occur in association with malignancy as a paraneoplastic phenomenon. We present a case of a patient presenting simultaneously with an advanced carcinosarcoma of the uterus and dermatomyositis. The diagnoses, pathophysiology and treatment of these two conditions are discussed and current published studies reviewed.
Asunto(s)
Carcinosarcoma/complicaciones , Dermatomiositis/complicaciones , Síndromes Paraneoplásicos/complicaciones , Neoplasias Uterinas/complicaciones , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinosarcoma/diagnóstico por imagen , Carcinosarcoma/tratamiento farmacológico , Carcinosarcoma/cirugía , Cisplatino/administración & dosificación , Ciclofosfamida/administración & dosificación , Dermatomiositis/diagnóstico , Dermatomiositis/tratamiento farmacológico , Doxorrubicina/administración & dosificación , Femenino , Humanos , Persona de Mediana Edad , Síndromes Paraneoplásicos/diagnóstico , Síndromes Paraneoplásicos/tratamiento farmacológico , Pelvis/diagnóstico por imagen , Radiografía , Neoplasias Uterinas/diagnóstico por imagen , Neoplasias Uterinas/tratamiento farmacológico , Neoplasias Uterinas/cirugíaAsunto(s)
Trabajo de Parto Prematuro , Nacimiento Prematuro , Medición de Longitud Cervical , Femenino , Fibronectinas , Humanos , Recién Nacido , EmbarazoRESUMEN
In a randomized double-blind trial of alpha-tocopherol (vitamin E), we investigated the effects of alpha-tocopherol supplementation on lipid- and water-soluble antioxidants in plasma and DNA repair activities in peripheral mononuclear leukocytes. Baseline levels of antioxidants and DNA repair activities were assessed twice before alpha-tocopherol intervention: on day 1 (visit 1) and day 3 (visit 2). During the second visit, participants were randomized to receive one of three dosages of alpha-tocopherol, 15, 60, or 200 mg/day for 4 weeks. The same biochemical measurements as at baseline were repeated twice after intervention: on day 17 (visit 3) and day 31 (visit 4). A total of 31 healthy volunteers were eligible for the study, completed all four visits and were included in the final data analysis. At baseline, no appreciable differences of dietary intake of vitamin E and plasma alpha-tocopherol were observed among the three dosage groups. In general, supplementation of alpha-tocopherol for 2-4 weeks resulted in a dose-dependent increase of plasma level of alpha-tocopherol (compared to baseline); significant increases of plasma alpha-tocopherol at visits 3 and 4 were observed in the two higher dosage groups, 60 and 200 mg, but not in the lowest dosage group, 15 mg. At visit 4 (but not visit 3), plasma glutathione levels were significantly elevated (compared to baseline) in the two higher dosage groups, 60 and 200 mg, but not in the lowest dosage group, 15 mg. In addition, there was an increase in the lipid protection ratio by supplementation of alpha-tocopherol for 2-4 weeks in the two higher dosage groups, 60 and 200 mg, but not in the lowest dosage group, 15 mg. In general, there were no consistent effects of alpha-tocopherol on DNA repair activities in peripheral mononuclear leukocytes after being adjusted for baseline DNA repair activities. Results from this study demonstrate the interrelationship between alpha-tocopherol and other antioxidants in plasma; total plasma antioxidants can be modulated by short-term dietary supplementation of alpha-tocopherol.