ABSTRACT
Resumen OBJETIVO: Ofrecer al lector información amplia y suficiente acerca de este síndrome, con hincapié en el reconocimiento del daño multiorgánico fetal, que permita darle herramientas para establecer el diagnóstico oportuno y disminuir la morbilidad y mortalidad fetal y neonatal. METODOLOGÍA: Estudio retrospectivo con base en la búsqueda en las bases de datos de PubMed, EBSCO y Ovid de 2016 a 2021 de artículos de revisión, investigaciones originales, guías de práctica clínica y protocolos. Además, artículos clásicos y los correspondientes a búsquedas manuales para lograr la contextualización de los puntos tratados. RESULTADOS: Cuando la infección llega al feto, se despliega una respuesta proinflamatoria con secreción de citocinas, que son la base para el diagnóstico de síndrome de respuesta inflamatoria fetal. Cuando esta respuesta a la infección es desregulada, termina por generar un daño multiorgánico que puede ser reconocido por medio de herramientas no invasivas, como el ultrasonido fetal avanzado. Este reconocimiento permite iniciar la atención oportuna a fin de reducir las tasas de morbilidad y mortalidad perinatal. CONCLUSIÓN: La infección microbiana de la cavidad amniótica y del feto, con la generación subsecuente del síndrome de respuesta inflamatoria fetal, se asocia con daño multiorgánico que puede reconocerse en el ultrasonido avanzado y lograr la atención óptima y mejores desenlaces perinatales.
Abstract OBJECTIVE: To provide the reader with ample and sufficient information about this syndrome, with emphasis on the recognition of fetal multiorgan damage, to provide tools to establish a timely diagnosis and reduce fetal and neonatal morbidity and mortality. METHODOLOGY: Retrospective study based on the search in PubMed, EBSCO and Ovid databases from 2016 to 2021 of review articles, original research, practice guidelines and protocols. In addition, classic articles and those corresponding to manual searches to achieve contextualization of the points discussed. RESULTS: When infection reaches the fetus, a proinflammatory response with cytokine secretion unfolds, which are the basis for the diagnosis of fetal inflammatory response syndrome. When this response to infection is deregulated, it ends up generating multiorgan damage that can be recognized by means of noninvasive tools, such as advanced fetal ultrasound. This recognition allows initiating timely care in order to reduce perinatal morbidity and mortality rates. CONCLUSION: Microbial infection of the amniotic cavity and fetus, with subsequent generation of fetal inflammatory response syndrome, is associated with multiorgan damage that can be recognized on advanced ultrasound and achieve optimal care and better perinatal outcomes.
ABSTRACT
Fetal inflammatory response syndrome(FIRS) is a state of systemic inflammatory response in the fetus, induced by infectious and non-infectious pathways, with increased levels of cytokines represented by interleukin-6.Chorioamnionitis and funisitis are common placental pathological changes of FIRS.FIRS can not only lead to premature birth, but also is closely related to multiple organ damage such as brain injury, lung injury, early-onset sepsis, necrotizing enterocolitis, and cardiovascular system diseases during the neonatal period.Therefore, reducing the damage caused by FIRS to neonates is a common clinical problem that obstetricians and pediatricians will face together.
ABSTRACT
OBJECTIVES: To evaluate the diagnostic value of matrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinase-1 (TIMP-1), and the MMP-9/TIMP-1 ratio in fetal inflammatory response syndrome (FIRS), and determine a possible association with the incidence of bronchopulmonary dysplasia (BPD) and myocardial injury. METHODS: Overall, 61 cases of preterm infants with FIRS were divided into the FIRS group 1 (≤32 weeks) and FIRS group 2 (32 to 37 weeks). Similarly, 57 cases of normal preterm infants were divided into Control group 1 and Control group 2. Levels of interleukin-6 (IL-6), MMP-9, and TIMP-1 were detected by enzyme-linked immunosorbent assay. Spearman's linear correlation was used to analyze the relationship between dependent variables. Pathological changes were examined by hematoxylin and eosin (HE) staining and in amniotic fluid smears. RESULTS: Levels of IL-6, MMP-9, and TIMP-1, and the MMP-9/TIMP-1 ratio were significantly higher in the FIRS group than in the Control groups. IL-6 was positively correlated with MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio. Areas under the curve (AUC) of MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio were 0.92, 0.90, and 0.95, respectively. HE staining and amniotic fluid smears showed the aggregation of inflammatory cells. MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio were closely related to the incidence of BPD (≤32 weeks) and myocardial injury (<37 weeks) in preterm infants. CONCLUSION: MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio revealed a certain diagnostic value for FIRS; combined with gestational age, these parameters were effective for predicting cardiopulmonary injury.
Subject(s)
Humans , Infant, Newborn , Infant , Bronchopulmonary Dysplasia/diagnosis , Biomarkers/analysis , Tissue Inhibitor of Metalloproteinase-1 , Infant, Premature , Gestational Age , Matrix Metalloproteinase 9ABSTRACT
There is no consensus about the relationships between chorioamnionitis and 3 pulmonary outcomes of concern for preterm infants:respiratory distress syndrome,pneumonia/sepsis,and bronchopulmonary dysplasia.Intrauterine infection increases the risk of neonatal infection including sepsis/pneumonia,also increases the incidence of bronchopulmonary dysplasia,but may reduce the incidence and severity of respiratory distress syndrome.In recent years,translational research with various animal models has been helpful to answer basic questions about the effect of antenatal inflammation on maturation and development of the fetal lung and immune system.Although the mechanisms are not entirely clear,chorioamnionitis predisposes infants to premature birth,neonatal sepsis,and other adverse outcomes.In this article,we reviewed the relationship of intrauterine infection and neonatal pulmonary morbidity.
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Fetal inflammatory response syndrome is a sub-clinical state that cause fetal immune sys-tem could be activated and released large amounts of proinflammatory cytokines.Either caused by infection of factors such as chorioamnionitis,fetal sepsis or non-infectious factors such as asphyxia,chronic lack of oxy-gen,which are likely to cause neurological damage in preterm or full-term children .This article reviewed the progress on the mechanism of neonatal encephalopathy caused by fetal inflammatory response syndrome.
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Considerando que la infección intraútero es una de las causas más importantes de morbilidad y mortalidad perinatal, con esta revisión de la bibliografía se pretende ofrecer a los obstetras, algunos conocimientos sobre el síndrome de respuesta inflamatoria fetal, que permitan su identificación adecuada. Se incluyen, además, los aspectos de dicha entidad clínica relacionados con el parto pretérmino, la corioamnionitis y las complicaciones que dañan al producto de la concepción y al recién nacido, a corto y largo plazo, así como los medios de diagnóstico invasivos, menos invasivos y no invasivos, y la utilidad de la intervención temprana. Por último, se concluyó que la garantía de una atención multidisciplinaria posibilitará el logro de una reducción en la morbilidad y mortalidad perinatal, causadas por esta afección.
Considering that intrauterine infection is one of the most important causes of perinatal morbidity and mortality, this literature survey is aimed at providing some knowledge of the fetal inflammatory response syndrome for obstetricians, which allows its adequate identification. Aspects of this clinical entity related to preterm delivery, chorioamnionitis and complications that damage the conceptus and the newborn in the short and long term are also included, as well as invasive, less invasive and non invasive diagnostic means and the usefulness of the early intervention. Finally, it was concluded that the guarantee of a multidisciplinary care will enable the achievement of a reduction in perinatal morbidity and mortality caused by this condition.
ABSTRACT
Antecedentes: El síndrome de respuesta inflamatoria fetal (SRIF) es una entidad relacionada con la presencia de inflamación intrauterina y suele asociarse a infección intraamniótica. Su consecuencia más grave es la lesión cerebral y posterior desarrollo de parálisis cerebral. Objetivo: Evaluar la relación entre el síndrome de respuesta inflamatoria fetal y el desarrollo de complicaciones neonatales. Método: Estudio descriptivo y retrospectivo, realizado en el Hospital Universitario La Paz de Madrid, buscando una aproximación al SRIF desde la corioamnionitis histológica/funiculitis. El grupo de estudio constituido por 35 gestaciones simples pretérmino recogidas durante el primer semestre de 2008 y en las que la anatomía patológica de la placenta y anexos ovulares demostró la presencia de una corioamnionitis histológica y/o funiculitis. Resultados: Siete casos (20 por ciento) presentaban clínica sospechosa de infección intraamniótica, si bien en 28 gestantes (80 por ciento) existían factores de riesgo asociados al síndrome de respuesta inflamatoria fetal. Mortalidad perinatal en el grupo estudiado fue de 11,4 por ciento (4 casos). Sólo en 2 pacientes (5,7 por ciento) se pudo relacionar la muerte con el SRIF. En 28 recién nacidos (80 por ciento) se encontró algún tipo de patología, siendo la misma inherente a dicho síndrome en 17 casos (48,6 por ciento), destacando sepsis neonatal (40 por ciento), leucomalacia periventricular (14,3 por ciento) y displasia broncopulmonar (5,7 por ciento). Conclusión: Se comprueba el alto riesgo neonatal del SRIF. El conocimiento de esta condición, abre una serie de controversias diagnósticas y terapéuticas que obliga a una reevaluación de los protocolos actuales de manejo de la amenaza de parto pretérmino y la rotura prematura de membranas de pretérmino.
Background: The fetal inflammatory response syndrome (FIRS) is an entity related to intrauterine inflammation which is commonly associated with intraamniotic infection. The most serious consequence is the neurologic damage and the subsequent development of cerebral palsy. Aims: To evaluate the relationship between the fetal inflammatory response syndrome and the development of neonatal complications. Method: Descriptive and retrospective study realized in "La Paz" University Hospital of Madrid, looking for an approximation to the FIRS from histologic chorioamnionitis/funisitis. Group of study constituted by 35 single preterm gestations collected during the first semester of 2008 and in which the pathologic anatomy study of the placenta and annexes showed the presence of histological corioamnionitis and / or funisitis. Results: Suspicious clinic was found in 7 cases (20 percent) but in 28 cases (80 percent) risk factors associated to FIRS were present. Perinatal mortality found was 11.4 percent (4 cases). Only in 2 cases (5.7 percent) the cause was relationated with FIRS. Pathology associated was found in 28 newborn (80 percent), being 17 cases (48.6 percent) pathology associated with the fetal inflammatory response syndrome, enhancing neonatal sepsis (40 percent), periventricular leukomalacia (14.3 percent), and bronchopulmonar dysplasia (5.7 percent). Conclusion: It is verified that FIRS enteals a high neonatal risk. The knowledge of this entity opens some diagnostic and therapeutic controversies. Current management protocols of preterm labor and preterm premature rupture of membranes should be revised.