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1.
Am J Perinatol ; 36(1): 90-96, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-29986345

RESUMO

OBJECTIVE: The objective of this study was to evaluate the negative predictive value (NPV) of a rapid influenza diagnostic test (RIDT) compared with polymerase chain reaction (PCR) in pregnant women. STUDY DESIGN: Retrospective cohort study of pregnant women with a negative RIDT followed by confirmatory PCR for influenza A, H1N1, and B during the influenza seasons from 2012 to 2015. RESULTS: The NPV of the RIDT was 85.4% (211 of 247), 93.5% (231 of 247), and 97.9% (242 of 247) for influenza A, H1N1, and B, respectively. Antiviral treatment was administered to 47.2% (17 of 36) of women with a false-negative RIDT for influenza A compared with 9.0% (19 of 211) of women with a true-negative RIDT (p< 0.001). Patients were more likely to receive antiviral treatment if they were feverish (adjusted odds ratio [aOR]: 6.05, 95% confidence interval [CI]: 1.83-20.03), had cough (aOR: 6.43, 95% CI: 1.06-39.26), dyspnea (aOR: 6.41, 95% CI: 1.63-25.29), or had a subsequently positive PCR (aOR: 9.41, 95% CI: 3.13-28.31). CONCLUSION: Up to 14.5% of women with a negative RIDT in pregnancy had positive influenza A by PCR of whom more than half did not receive antiviral treatment.


Assuntos
Antivirais/uso terapêutico , Vírus da Influenza A Subtipo H1N1/isolamento & purificação , Influenza Humana , Influenzavirus B/isolamento & purificação , Adulto , Testes Diagnósticos de Rotina/estatística & dados numéricos , Reações Falso-Negativas , Feminino , Humanos , Influenza Humana/diagnóstico , Influenza Humana/tratamento farmacológico , Influenza Humana/epidemiologia , Influenza Humana/virologia , Reação em Cadeia da Polimerase/estatística & dados numéricos , Valor Preditivo dos Testes , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/virologia , Estudos Retrospectivos
2.
Am J Perinatol ; 36(6): 555-560, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30452069

RESUMO

OBJECTIVE: To define the temporal relationship between intrapartum intravenous vancomycin administration and vaginal group B streptococcus (GBS) colony counts. STUDY DESIGN: Prospective cohort study conducted from October 2014 to February 2017. Women with antenatal cultures demonstrating GBS colonization and a plan for vancomycin administration were eligible. Intrapartum vaginal cultures were collected prior to the first vancomycin infusion and every 2 hours up to five collections or delivery. Results were analyzed in two groups: participants with at least one positive intrapartum culture and those without any positive intrapartum cultures. RESULTS: A total of 63 women were enrolled. Among consented women, a total of 8 were excluded and 3 participants' cultures were never plated, thus leaving a total of 52 women for analysis. The degree of vaginal GBS colonization varied between subjects and was not normally distributed. Colony counts dropped rapidly from hour 0 to hour 2 (median: 6.0 × 108 vs. 1.0 × 108, p < 0.01). Standardizing hour 0 colony counts to 100%, the percent decline in colony counts from hour 0 to hour 2 was significant (p = 0.03), and at each subsequent time point fell further. CONCLUSION: GBS vaginal colony counts fall rapidly after intrapartum vancomycin administration.


Assuntos
Antibacterianos/uso terapêutico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Infecções Estreptocócicas/tratamento farmacológico , Streptococcus agalactiae/efeitos dos fármacos , Vagina/microbiologia , Vancomicina/uso terapêutico , Adulto , Contagem de Colônia Microbiana , Feminino , Humanos , Injeções Intravenosas , Gravidez , Complicações Infecciosas na Gravidez/microbiologia , Estudos Prospectivos , Streptococcus agalactiae/isolamento & purificação , Fatores de Tempo
3.
Genet Med ; 21(6): 1339-1344, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30410095

RESUMO

PURPOSE: Numerous etiologies may lead to nonimmune hydrops fetalis (NIHF), and the underlying cause often remains unclear. We aimed to determine the proportion of NIHF cases in which the etiology was clearly determined in a large, contemporary, and diverse cohort, as well as to describe the etiologies with a focus on genetic causes. METHODS: Retrospective review of NIHF cases between 2015 and 2017 from the five University of California Fetal-Maternal Consortium sites. Singleton pregnancies with prenatally diagnosed NIHF were included, and cases with maternal alloimmunization were excluded. Cases were categorized as being of confirmed, suspected, or unknown etiology. RESULTS: Sixty-five NIHF cases were identified. Forty-six percent (30/65) remained of unknown etiology, while 9.2% (6/65) had a suspected etiology and 44.6% (29/65) were of confirmed etiology. Among confirmed cases, 11 resulted from aneuploidy; 7 from fetal structural anomalies; 2 each from fetal arrhythmia, Noonan syndrome, and generalized lymphatic dysplasia; and 1 each from arthrogryposis, parvovirus, neonatal alloimmune thrombocytopenia, fetal goiter, and Kasabach-Merritt syndrome. CONCLUSION: In this contemporary, multicenter study, the cause of prenatally diagnosed NIHF was confirmed in only 44% of cases, and a genetic etiology was found in only 25% of those that received standard of care genetic testing.


Assuntos
Hidropisia Fetal/etiologia , Hidropisia Fetal/genética , Adolescente , Adulto , Aneuploidia , California , Estudos de Coortes , Feminino , Feto , Humanos , Recém-Nascido , Masculino , Gravidez , Primeiro Trimestre da Gravidez , Cuidado Pré-Natal , Estudos Retrospectivos , Ultrassonografia Pré-Natal
4.
Am J Med Genet A ; 176(12): 2829-2834, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30244526

RESUMO

Nonimmune hydrops fetalis (NIHF) is a rare disorder with a high perinatal mortality of at least 50%. One cause of NIHF is generalized lymphatic dysplasia (GLD), a rare form of primary lymphedema of the extremities and systemic involvement including chylothoraces and pericardial effusions. An autosomal recessive form of GLD has been described, caused by variants in the PIEZO1 gene. It has been reported clinically to cause NIHF and childhood onset of facial and limb lymphedema, most of which were diagnosed postnatally. We present a case of a woman with recurrent pregnancies affected by NIHF because of novel compound heterozygous variants in the PIEZO1 gene diagnosed prenatally using exome sequencing (ES). Two variants in PIEZO1 (c.3206G>A and c.6208A>C) were identified that were inherited from the father and mother, and are predicted to cause a nonsense and missense change, respectively, in the PIEZO1 subunits. Ultrasound demonstrated severe bilateral pleural effusions, whole body edema and polyhydramnios. Histopathology revealed an increased number of lymphatic channels, many of which showed failure of luminal canalization. Sanger sequencing confirmed the same variants in a prior fetal demise. We provide phenotypic correlation with ultrasound and autopsy finding, review PIEZO1 variants as a cause of GLD and discuss the uses of prenatal ES to date.


Assuntos
Exoma , Variação Genética , Hidropisia Fetal/diagnóstico , Hidropisia Fetal/genética , Canais Iônicos/genética , Adulto , Autopsia , Biópsia , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Recém-Nascido , Gravidez , Ultrassonografia Pré-Natal , Sequenciamento Completo do Exoma
5.
Obstet Gynecol ; 129(4): 720-726, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28277360

RESUMO

OBJECTIVE: To evaluate use (both appropriate and inappropriate) of rescue corticosteroids before and after the implementation of a guideline for their use. METHODS: We conducted a retrospective cohort study using a pharmacy log to identify women who received an initial course of antenatal corticosteroids in the year before (2008) and in the 4 years (2009-2012) after implementation of the guideline. The charts were then reviewed to determine eligibility and assess receipt of rescue corticosteroids according to the guideline. Our primary study outcome was a temporal change in the percentage of appropriate rescue corticosteroid administration. RESULTS: Of 2,528 women who received a first course of corticosteroids, 142 (5.6%) were eligible for a rescue course, of whom 103 (73%) received it. The rate of appropriate administration increased from 18.2% (95% confidence interval [CI] 5-40%) in 2008 to 65.4% (95% CI 44-83%) in 2009, 93.5% (95% CI 79-99%) in 2010, 96.1% (95% CI 80-99%) in 2011, and 75.7% (95% CI 59-88%) in 2012 (P for test of trend <.001). Only 25 of these 103 eligible women (24.3%) delivered within 2-7 days of receipt of the rescue course. The rate of inappropriate administration among women who were not eligible for a rescue course (n=2,381) also rose from 0.4% (95% CI 0.04-1.4%) in 2008 to 1.9% (95% CI 0.9-3.5%) in 2009, 1.8% (95% CI 0.8-3.6%) in 2010, 2.4% (95% CI 1.2-4.3%) in 2011, and 2.2% (95% CI 1.1-4.0%) in 2012 (P for test of trend=.03). Among all recipients of rescue corticosteroids, 28% (41/144) were ineligible according to the guideline. CONCLUSION: Implementation of an institutional guideline for rescue corticosteroids was associated with a high rate of use among eligible women.


Assuntos
Betametasona , Doenças do Prematuro/prevenção & controle , Conduta do Tratamento Medicamentoso , Adulto , Betametasona/administração & dosagem , Betametasona/uso terapêutico , Definição da Elegibilidade , Feminino , Glucocorticoides/administração & dosagem , Glucocorticoides/uso terapêutico , Humanos , Conduta do Tratamento Medicamentoso/estatística & dados numéricos , Conduta do Tratamento Medicamentoso/tendências , Avaliação de Processos e Resultados em Cuidados de Saúde , Guias de Prática Clínica como Assunto , Gravidez , Resultado da Gravidez , Cuidado Pré-Natal/métodos , Cuidado Pré-Natal/estatística & dados numéricos , Cuidado Pré-Natal/tendências , Estudos Retrospectivos , Estados Unidos
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