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Resumen Se presenta el caso clínico de una paciente del sexo femenino, de 30 años, con adenopatías supraclaviculares y axilares ipsilaterales, quien fue sometida a biopsia excisional con posterior estudio. El análisis histopatológico de la muestra de tejido resecado reveló una serie de características distintivas asociadas con la enfermedad de Castleman variante hialinovascular. La presentación de este caso no solo proporciona información detallada sobre la evolución clínica de la paciente, sino que también sirve como base para ilustrar los aspectos clave del diagnóstico histopatológico y las implicaciones inmunohistoquímicas en la enfermedad de Castleman. Además de hacer una revisión de tema respecto a esta patología poco común, en la cual los informes de casos son fundamentales para aumentar la comprensión de su variabilidad clínica y su abordaje diagnóstico, ilustrando los desafíos en el diagnóstico diferencial y como deben abordarse los mismos.
Abstract The clinical case of a 30-year-old female patient with supraclavicular and ipsilateral axillary lymphadenopathy who underwent excisional biopsy with subsequent study is presented. Histopathological analysis of the resected tissue sample revealed a series of distinctive features associated with hyalinevascular variant Castleman disease. The presentation of this case not only provides detailed information about the clinical evolution of the patient, but also serves as a basis to illustrate Key aspects of histopathological diagnosis and immunohistochemical implications in Castleman disease. In addition to making a review of the topic regarding this rare pathology in which case reports are essential to increase the understanding of its clinical variability and its diagnostic approach, illustrating the challenges in differential diagnosis and how they should be addressed.
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ABSTRACT Biliary atresia (BA) is a fibro-obliterative cholestatic disease of infancy. The presence of cartilage in the resected tissue is an uncommon finding. We documented the presence of both mature and immature hyaline cartilage in the portal plate and the wall of the gallbladder in a 2-month-old girl infant with BA who had undergone Kasai portoenterostomy. The presence of cartilage could be part of a heterotopia or an uncommon connective tissue metaplasia. The presence of immature cartilage with the merging of the perichondrium with the soft tissue highlights a metaplastic etiology in the index case.
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Abstract Objective: Among the mechanisms proposed for the development of bronchopulmonary dysplasia is the increase in the pulmonary inflammatory process and oxidative stress. Thus, the control of this process may result in improvements in bronchopulmonary dysplasia-related outcomes. This study aims to analyze the current scientific evidence regarding the use of budesonide, a potent anti-inflammatory drug, associated with a pulmonary surfactant to prevent bronchopulmonary dysplasia. Methods: A systematic review of the literature was performed on the Embase and MEDLINE platforms, and studies that compared budesonide with pulmonary surfactant versus pulmonary surfactant for treating respiratory distress syndrome were included. The primary outcome was a reduction in bronchopulmonary dysplasia or death. Results: Four randomized clinical trials and two observational studies were included in this systematic review. Three of the randomized clinical trials found a reduction in bronchopulmonary dysplasia or death in the use of budesonide with the surfactant, all the other studies (1 clinical trial and 2 observational studies) found no statistical differences between the groups for the primary outcomes. The three main studies showed a reduction in the primary outcome; however, all studies showed great heterogeneity regarding the type of surfactant (poractant or beractant) and the method of administration. Conclusion: Robust clinical studies, in a heterogeneous population, using porcine surfactant associated with budesonide, with administration by a minimally invasive technique are necessary for there to be a recommendation based on scientific evidence for its widespread use.
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El proceso de respiración y el intercambio gaseoso requiere la interacción de variadas fuerzas en los distintos tejidos y órganos involucrados. La tensión superficial a nivel alveolar provocaría colapso de dichas estructuras de no ser por las características del surfactante que lo recubre. Revisaremos en este articulo la fisiología involucrada en su estructura física, producción y efectos pulmonares.
The process of breathing and gas exchange requires the interaction of various forces in the different tissues and organs involved. The surface tension at the alveolus would cause collapse of these structures without of the surfactant that covers it. We will review in this article the physiology involved in its physical structure, production, and pulmonary effects.
Subject(s)
Humans , Pulmonary Surfactants/metabolism , Lung/physiology , Phospholipids/analysis , Pulmonary Surfactants/chemistry , Proteins/analysis , Lipids/analysisABSTRACT
Castleman disease (CD), first described by Benjamin Castleman as angiofollicular mediastinal lymph杗ode hyperplasia, is a rare benign lymphoproliferative disorder with varied modes of presentation. Its common presentation within the mediastinum misleads the clinician and merits special attention since it is essentially a diagnosis of exclusion. We are sharing our experience with three patients, within a relatively short period of 2 years. All three presented with a mediastinal mass, however, each of them came with an entirely different clinical scenario and diagnosis. All three were successfully operated and Castleman disease [hyaline杤ascular (HV) type] was diagnosed only after the final histopathology.
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Objective@#To investigate the clinicopathological characteristics, imaging manifestations, genetic manifestations, diagnosis and treatment of juvenile hyaline fibromatosis.@*Methods @# A case of juvenile hyaline fibromatosis was reported, and the patient's clinical manifestations, imaging examinations, histopathological examinations, genetic changes and treatment were summarized and analyzed.@*Results @#Juvenile hyaloid fibromatosis is more common in infants and children. This patient had typical clinical and pathological manifestations, including posterior occipital masses, skin and subcutaneous nodules, gum hyperplasia, joint contractures, and joint osteolytic lesions. The histopathological lesions were characterized by the proliferation of spindle cells in the tissue accompanied by a large amount of amorphous transparent matrix. Genetic testing was performed to confirm an ANTXR2 gene mutation, consistent with the known genetic changes of juvenile hyaline fibromatosis. The 6-month follow-up of the patient showed that there was no obvious recurrence after resection of the gum and facial mass. In addition to surgery, the treatment of this disease requires multidisciplinary symptomatic treatment combined with rehabilitation and supportive treatment to achieve a better prognostic effect.@*Conclusion@# Juvenile hyaline fibromatosis is a rare nonneoplastic autosomal recessive genetic disease. Mutations in the ANTXR2 gene lead to disorders of collagen synthesis and metabolism in the tissues and further cause subcutaneous nodules, gingival hyperplasia, joint contractures and bone dissolution.
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ABSTRACT Jacob's disease or osteochondroma is a rare disease that presents as a pseudo-joint between the coronoid process of the mandible and the posterior surface of the zygomatic bone. The present case report is of an 11-year-old female patient with a maximum mouth opening of 2mm. When evaluating computed tomography with three-dimensional reconstruction, a mushroom-shaped increase in the coronoid process of the mandible on the left side was observed, intimately connected to the zygomatic bone (inferoposterior region of the body of the zygoma), which suggests a pseudoarticulation. Surgical removal of the tumor mass was performed under general anesthesia via intraoral access and is called coronoidectomy. Histopathological, the presence of hyaline cartilage was observed, a condition that is pathognomonic for Jacob's Disease. Jacob's disease case reports are still rare in the literature, with mushroom shape and histopathological confirmation due to the presence of hyaline cartilage.
RESUMO A Doença de Jacob ou osteocondroma é uma doença rara que se apresenta como uma pseudoarticulação entre o processo coronóide da mandíbula e a superfície posterior do osso zigomático. O presente relato de caso é de um paciente, do sexo feminino, com 11 anos de idade e com 2mm de abertura máxima de boca. Ao se avaliar exame de tomografia computadorizada com reconstrução tridimensional foi observado um aumento volumétrico no processo coronóide da mandíbula do lado esquerdo em formato de cogumelo, intimamente ligado ao osso zigomático (região inferoposterior do corpo do zigoma), o que sugere uma pseudoarticulação. A remoção cirúrgica da massa tumoral foi realizada sob anestesia geral por acesso intraoral e é denominada coronoidectomia. Histopatologicamente, observou-se presença de cartilagem hialina, condição é que patognomônica da Doença de Jacob. Ainda são raros os relatos de casos de Doença de Jacob na literatura, com formato de cogumelo e confirmação histopatológica devido à presença de cartilagem hialina.
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Abstract Objective To compare the effects of expectant versus interventionist care in the management of pregnant women with severe preeclampsia remote from term. Data sources An electronic search was conducted in the Medical Literature Analysis and Retrieval System Online (MEDLINE), Excerpta Medica Database (EMBASE), Cochrane Central Register of Controlled Trials (CENTRAL), Latin American and Caribbean Health Sciences Literature (LILACS, for its Spanish acronym), World Health Organization's International Clinical Trials Registry Platform (WHO-ICTRP), and Open- Grey databases. The International Federation of Gynecology and Obstetrics (FIGO, for its French acronym), Royal College of Obstetricians and Gynaecologists (RCOG), American College of Obstetricians and Gynecologists (ACOG), and Colombian Journal of Obstetrics and Gynecology (CJOG) websites were searched for conference proceedings, without language restrictions, up to March 25, 2020. Selection of studies Randomized clinical trials (RCTs), and non-randomized controlled studies (NRSs) were included. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach was used to evaluate the quality of the evidence. Data collection Studies were independently assessed for inclusion criteria, data extraction, and risk of bias. Disagreements were resolved by consensus. Data synthesis Four RCTs and six NRS were included. Low-quality evidence from the RCTs showed that expectant care may result in a lower incidence of appearance, pulse, grimace, activity, and respiration (Apgar) scores<7 at 5 minutes (risk ratio [RR]: 0.48; 95% confidence interval [95%CI]: 0.23%to 0.99) and a higher average birth weight (mean difference [MD]: 254.7 g; 95%CI: 98.5 g to 410.9 g). Very low quality evidence from the NRSs suggested that expectant care might decrease the rates of neonatal death (RR: 0.42; 95%CI 0.22 to 0.80), hyalinemembrane disease (RR: 0.59; 95%CI: 0.40 to 0.87), and admission to neonatal care (RR: 0.73; 95%CI: 0.54 to 0.99). Nomaternal or fetal differences were found for other perinatal outcomes. Conclusion Compared with interventionist management, expectant care may improve neonatal outcomes without increasing maternal morbidity and mortality.
Resumo Objetivo Comparar os efeitos dos cuidados expectantes versus intervencionistas no manejo de gestantes com pré-eclâmpsia grave distante do termo. Fontes de dados Foi realizada uma busca eletrônica no Medical Literature Analysis and Retrieval System Online (MEDLINE), Excerpta Medica Database (EMBASE), Cochrane Central Register of Controlled Trials (CENTRAL), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS, para o espanhol) acrônimo), Plataforma Internacional de Registro de Ensaios Clínicos da Organização Mundial da Saúde (OMS-ICTRP) e bancos de dados OpenGrey. Foram pesquisados os sites da Federação Internacional de Ginecologia e Obstetrícia (FIGO, por sua sigla em francês), do Royal College of Obstetricians e Ginecologistas (RCOG), do American College of Obstetricians e Ginecologistas (ACOG) e do Colombian Journal of Obstetrics and Gynecology (CJOG) procedimentos da conferência, sem restrições de idioma, até 25 de março de 2020. Seleção de estudos Ensaios clínicos randomizados (RCTs) e estudos controlados não randomizados (NRSs) foram incluídos. A abordagem de Classificação de Recomendações, Avaliação, Desenvolvimento e Avaliação (GRADE) foi usada para avaliar a qualidade da evidência. Coleta de dados Os estudos foram avaliados de forma independente quanto aos critérios de inclusão, extração de dados e risco de viés. As discordâncias foram resolvidas por consenso. Síntese de dados Quatro RCTs e seis NRS foram incluídos. Evidências de baixa qualidade dos ECRs mostraram que o cuidado expectante pode resultar em uma incidência menor de pontuações de aparência, pulso, careta, atividade e respiração (Apgar) <7 em 5 minutos (razão de risco [RR]: 0,48; intervalo de confiança de 95% [IC 95%]: 0,23% a 0,99) e um peso médio ao nascer superior (diferença média [MD]: 254,7 g; IC 95%: 98,5 ga 410,9 g). Evidências de qualidade muito baixa dos NRSs sugeriram que os cuidados expectantes podem diminuir as taxas de morte neonatal (RR: 0,42; IC de 95% 0,22 a 0,80), doença da membrana hialina (RR: 0,59; IC de 95%: 0,40 a 0,87) e admissão à assistência neonatal (RR: 0,73; IC 95%: 0,54 a 0,99). Nenhuma diferença materna ou fetal foi encontrada para outros resultados perinatais. Conclusão Em comparação com o manejo intervencionista, o cuidado expectante pode melhorar os resultados neonatais sem aumentar a morbidade e mortalidade materna.
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Humans , Female , Pregnancy , Infant, Newborn , Pre-Eclampsia/therapy , Birth Weight , Watchful WaitingABSTRACT
RESUMEN Fundamento: la neumonía por COVID-19 es una enfermedad recién conocida que se ha extendido de manera rápida por todo el mundo. Los fundamentos patogénicos y los cambios histopatológicos que provoca el COVID-19 no se comprenden en su totalidad, lo cual atenta contra la identificación clínica adecuada de los pacientes y la implementación de estrategias terapéuticos eficaces. Objetivo: describir los hallazgos histopatológicos hallados en autopsia de casos confirmados de COVID-19. Métodos: la evidencia se recopiló mediante una búsqueda en PubMed de publicaciones en idioma inglés, utilizando las palabras claves: coronavirus, COVID-19, autopsy y síndrome de dificultad respiratoria aguda en varias combinaciones en el año 2020. Solo se hallaron cinco artículos con información sobre los resultados de las autopsias de casos confirmados con COVID-19. Resultados: desde el inicio de la pandemia en diciembre de 2019 se han publicado siete informes de autopsias de casos confirmados con COVID-19, recogidos en cuatro artículos. Todas las autopsias han coincidido en el principal hallazgo: daño alveolar difuso con formación de membrana hialina, lo cual se correlaciona con las manifestaciones clínicas del síndrome de dificultad respiratoria aguda. Conclusiones: el COVID-19 produce principalmente daño alveolar, el cual consiste en edema pulmonar con formación de membrana hialina que se expresa clínicamente como un síndrome de dificultad respiratoria aguda.
ABSTRACT Background: COVID-19 pneumonia is a recently recognized disease that has spread rapidly throughout the world. The pathogenic foundations and histopathological changes caused by COVID-19 are not fully understood, which undermines the proper clinical identification of patients and the implementation of effective therapeutic strategies. Objective: to describe the histopathological findings found at autopsy of confirmed cases of COVID-19. Methods: evidence was collected by searching PubMed for English language publications, using the keywords: coronavirus, COVID-19, autopsy and acute respiratory distress syndrome in various combinations in 2020. Only five articles were found with information on the autopsy results of confirmed cases with COVID-19. Results: since the start of the pandemic in December 2019, seven autopsy reports of confirmed cases with COVID-19 have been published, collected in 4 articles. All autopsies have agreed on the main finding: diffuse alveolar damage with hyaline membrane formation, which correlates with the clinical manifestations of acute respiratory distress syndrome. Conclusions: COVID-19 mainly produces alveolar damage, which consists of pulmonary edema with hyaline membrane formation, which is clinically expressed as an acute respiratory distress syndrome.
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Introduction: Respiratory distress (RD) is a common causeof admission in the neonatal unit. Early recognition of RDand initiation of appropriate treatment is important to ensureoptimal outcomes. RD is one of the most common causes ofmorbidity in newborn. Aim of the present research was tostudy clinical profile of neonatal respiratory distress (RD),to find out most common etiology of respiratory distress innewborn and to assess the immediate clinical outcome of RDin our neonatal intensive care unit (NICU).Material and Methods: A prospective study was conductedat Tertiary Care Hospital, Guntur from May 2019 to October2019 and study includes 200 cases. Term, pre-term and postterm babies both in-born and out-born cases were included inthe study.Results: The study showed among the 720 newborns admittedin NICU, 200 (28 %) cases were admitted with Respiratorydistress. Of them, 116 babies (58%) were delivered vaginallyand 84 (42%) by lower segment caesarean section. There were122 (61%) pre-term babies, 68 (34%) term and 10 (5%) postterm neonates who were admitted with respiratory distress. Themajority of cases were clinically presented with tachypnea,flaring of alae nasi, and chest indrawing. The respiratorydistress resolved on the 4th day in majority of cases.Conclusion: Respiratory Distress is one of the commonestcause of NICU admissions. Transient tachypnea of thenewborn is the most common cause of respiratory distress interm babies whereas Hyaline membrane disease is common inpreterm babies. The survival rate was 90% among RD casesadmitted to NICU.
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To explore the clinicopathological and immunohistochemical characteristics of follicular dendritic cell sarcoma(FDCS)and the expressions of IgG and IgG4. We retrospectively analyzed the clinicopathological and immunohistochemical data of 9 pathologically confirmed FDCS cases in Peking Union Medical College Hospital from January 2005 to December 2018.Immunohistochemical staining of IgG and IgG4 were performed,and Epstein-Barr virus(EBV)-encoded RNA(EBER)in situ hybridization were carried out. Nine cases of FDCS included 4 men and 5 women aged 16-53 years [mean(38.2±9.7)years].The clinical manifestations included masses,lymph node enlargement,rash,and fever.The tumors were located in lymph node,retroperitoneal region,adrenal gland,neck,axillary region,and liver,respectively.Ultrasound showed clear boundary cystic or solid mass with maximum diameters of 1.5-15.0 cm.Microscopically,the spindle tumor cells were arranged in solid and storiform patterns with abundant and slightly stained cytoplasm,vacuolated nuclei,and small nucleoli.The mitosis was 1-3/10 high power fields,and necrosis was found in 5 cases.Immunohistochemically,the tumor cells were positive for CD21(6/9),CD35(6/9),and CD23(7/9). FDCS is a rare malignant tumor,which is easy to be missed.The combination of CD21,CD35,and CD23 is helpful for diagnosis.Hyaline-vascular type Castleman's disease may be the precursor of FDCS,and there may be only a small number of IgG4-positive plasma cells in FDCS.Surgical resection remains the main treatment for FDCS.
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Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Dendritic Cell Sarcoma, Follicular , In Situ Hybridization , Liver , Lymph Nodes , Retrospective StudiesABSTRACT
La enfermedad de membrana hialina se debe a la deficiencia de surfactante en los pulmones de los recién nacidos especialmente los menores de 37 semanas de gestación. El manejo materno con corticoides prenatales en este grupo, disminuye la morbimortalidad asociada a esta patología neonatal. Se analiza desde el punto de la evidencia actualmente existente la administración de surfactante a estos prematuros y se revisa el tipo de surfactante a administrar, cuando es el mejor momento para administrarlo, la dosis y la forma de administrarlo.
Hyaline membrane disease is due to surfactant deficiency in the lungs of newborns, especially those younger than 37 weeks gestation. Maternal management with prenatal corticosteroids in this group reduces the morbidity and mortality associated with this neonatal pathology. The administration of surfactant to these preterm infants is analyzed from the point of the currently existing evidence and the type of surfactant to be administered is reviewed, when is the best time to administer it, the dose and the form of administration.
Subject(s)
Humans , Infant, Newborn , Infant , Hyaline Membrane Disease/physiopathology , Hyaline Membrane Disease/drug therapy , Pulmonary Surfactants/therapeutic use , Treatment Outcome , Infant, Premature, Diseases/drug therapyABSTRACT
Background: Respiratory distress is a medical emergency responsible for most of the admissions in NICUs during neonatal period. It is a major contributor to neonatal morbidity and mortality and results from a variety of respiratory and non-respiratory etiology. It occurs in 0.96 to 12% of live births and responsible for about 20% of neonatal mortality. Aim of study to find out the proportion of patients with different etiology of respiratory distress in neonates.Methods: The present study is a prospective, descriptive study which was carried out at neonatal units attached to SMS Medical College, Jaipur. All the neonates with respiratory distress admitted in NICU admitted from April 2012 to March 2013were selected for the present study. Detailed history including antenatal history, natal history, postnatal history with thorough clinical examinations and investigations done in each case and were recorded in the performa.Results: A total of 500 neonates were admitted and among them 375 were inborn (delivered in our hospitals) and 125 out-born (referred to our hospitals from outside). In inborn group hyaline membrane disease (HMD) was the most common cause (32%) of respiratory distress and in out-born congenital pneumonia/septicaemia (34.4%). There was male preponderance in both inborn and out-born groups with male: female ratio 1.45:1 and 1.6:1 respectively.Conclusions: Majority of cases in both inborn and out-born groups were preterm (56.8% and 54.4% respectively) which emphasises the need for care of mother during antenatal period for prevention of premature delivery.
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Abstract Objective: The stable microbubble test on gastric aspirate and on amniotic fluid has been used for the diagnosis of respiratory distress syndrome in the newborn. However, no study has performed this test on oral aspirates from premature infants. The objective of this study was to evaluate the performance of the stable microbubble test on oral aspirates from preterm newborns to predict respiratory distress syndrome. Method: This study included infants with gestational age <34 weeks. Oral fluids were obtained immediately after birth and gastric fluids were collected within the first 30 minutes of life. The samples were frozen and tested within 72 hours. Results: The sample was composed of paired aspirates from 64 newborns, who were divided into two groups: respiratory distress syndrome group (n = 21) and control group (n = 43). The median (interquartile range) of the stable microbubble count in the oral samples of infants with respiratory distress syndrome was significantly lower than that of infants who did not develop respiratory symptoms: respiratory distress syndrome group = 12 (8 -22) stable microbubbles/mm2; control group = 100 (48 -230) microbubbles/mm2 (p < 0.001). The correlation between microbubble count in gastric and oral aspirates was 0.90 (95% confidence interval = 0.85 -0.95; p < 0.001). Considering a cut-off point of 25 microbubbles/mm2, the sensitivity and the specificity of the stable microbubble test were 81.4% and 85.7%, respectively. Conclusion: The study suggests that the stable microbubble test performed on oral aspirate is a reliable alternative to that performed on gastric fluid for the prediction of respiratory distress syndrome in the newborn.
Resumo Objetivo: O teste das microbolhas estáveis no aspirado gástrico e no líquido amniótico foi usado no diagnóstico da síndrome do desconforto respiratório do recém-nascido. Contudo, nenhum estudo fez esse teste nos aspirados bucais de neonatos prematuros. O objetivo deste estudo foi avaliar o desempenho do teste das microbolhas estáveis em aspirados bucais de recém-nascidos prematuros para prever síndrome do desconforto respiratório. Método: Este estudo incluiu neonatos com idade gestacional < 34 semanas. Os fluidos orais foram obtidos imediatamente após o nascimento e os fluidos gástricos foram coletados nos primeiros 30 minutos de vida. As amostras foram congeladas e testadas em 72 horas. Resultados: A amostra foi composta de aspirados pareados de 64 recém-nascidos, divididos em dois grupos: grupo de síndrome do desconforto respiratório (n = 21) e grupo de controle (n = 43). A mediana (intervalo interquartil) da contagem das microbolhas estáveis nas amostras de fluido oral dos neonatos com síndrome do desconforto respiratório foi significativamente menor que a dos neonatos que não desenvolveram sintomas respiratórios: grupo de síndrome do desconforto respiratório = 12 (8-22) microbolhas estáveis/mm2; grupo de controle = 100 (48-230) microbolhas/mm2 (p < 0,001). A correlação entre a contagem das microbolhas nos aspirados gástricos e bucais foi 0,90 (intervalo de confiança de 95% = 0,85-0,95; p < 0,001). Considerando um ponto de corte de 25 microbolhas/mm2, a sensibilidade e a especificidade do teste das microbolhas estáveis foram 81,4% e 85,7%, respectivamente. Conclusão: O estudo sugere que o teste das microbolhas estáveis feito no aspirado bucal é uma opção confiável ao fluido gástrico para a predição da síndrome do desconforto respiratório do recém-nascido.
Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Respiratory Distress Syndrome, Newborn/diagnosis , Saliva/chemistry , Pulmonary Surfactants/analysis , Microbubbles , Diagnostic Tests, Routine/methods , Infant, Premature, Diseases/diagnosis , Infant, Premature , Case-Control Studies , Gestational Age , Gastric Juice/chemistry , Infant, Newborn, Diseases/diagnosisABSTRACT
Background: Juvenile Hyaline Fibromatosis is a rare autosomal recessive connective tissue disorder. Case Characteristics: Three year old girl with multiple facial nodules, gingival hypertrophy and multiple joint contractures. Her sibling, male child also had similar findings which was progressive and he died at 2 years. Outcome: Nodule biopsy showed extensively hyalinised dermis with PAS positivity. Message: Juvenile Hyaline Fibromatosis is a differential diagnosis for children presenting with multiple nodular lesions.
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RESUMEN Introducción: El estándar para inducción de madurez pulmonar en fetos con riesgo de nacer prematuramente es la administración de 12 mg de betametasona acetato/fosfato por dos veces espaciada cada 24 horas. El uso establecido en algunos hospitales públicos en Chile es con dos dosis de 12 mg betametasona fosfato aunque no existen estudios publicados sólo con betametasona fosfato sobre la incidencia de Síndrome de Distress Respiratorio (SDR). Objetivo: Evaluar efecto de betametasona en su forma fosfato como tratamiento antenatal para inducción de madurez fetal pulmonar en la incidencia SDR debido a membrana hialina en prematuros menores de 34 semanas de edad gestacional. Comparar el efecto de betametasona fosfato con el efecto publicado de betametasona acetato/fosfato. Material y método: Análisis de incidencia de SDR en prematuros nacidos en Hospital Padre Hurtado entre 24+0 y 34+0 semanas que recibieron betametasona fosfato para madurez pulmonar y aquellos que no la recibieron. Resultados: De 1.265 neonatos estudiados, 722 completaron dos dosis (57,5%); 436 sólo una dosis (34,5%) y 107 (8,5%) no recibieron corticoides antenatales. La incidencia de SDR debido a membrana hialina en el grupo con dos dosis fue 8,7%, una dosis 25,3% y 32,7% en los no tratados (p<0,001). Para SDR severo las incidencias fueron 6,7%, 12,6% y 16,8% respectivamente (p<0,001). Conclusiones: Inducción de madurez fetal pulmonar con betametasona fosfato en dos dosis de 12 mg IM separadas por 24 horas otorga una reducción significativa de incidencia de SDR semejante a la publicada con betametasona acetato/fosfato en iguales dosis.
ABSTRACT The standard for induction of lung maturity in fetuses at risk of being born prematurely is the administration of 12 mg of betamethasone acetate/phosphate two doses separated by 24 hours. The established use in some public hospitals in Chile is with two doses of 12 mg betamethasone phosphate although there are no studies published with betamethasone phosphate alone on the incidence of respiratory distress syndrome (RDS). Objective: To evaluate the effect of betamethasone in its phosphate form as antenatal treatment for the induction of fetal lung maturity in the incidence of RDS due to hyaline membrane in preterm infants less than 34 weeks of gestational age. To compare the effect of betamethasone phosphate with the published effect of betamethasone acetate/phosphate. Material and method: Analysis of the incidence of RDS in preterm infants born at Hospital Padre Hurtado between 24 + 0 and 34 + 0 weeks who received betamethasone phosphate for lung maturity and those who did not receive it. Results: Of 1,265 infants studied, 722 completed two doses (57.5%); 436 only one dose (34.5%) and 107 (8.5%) did not receive antenatal corticosteroids. The incidence of RDS due to hyaline membrane in the group with two doses was 8.7%, one dose 25.3% and 32.7% in the untreated ones (p <0.001). For severe RDS, incidences were 6.7%, 12.6% and 16.8% respectively (p <0.001). Conclusions: Induction of fetal lung maturity with betamethasone phosphate in two doses of 12 mg IM separated by 24 hours gives a significant reduction in the incidence of RDS similar to that published with betamethasone acetate/phosphate in equal doses.
Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Respiratory Distress Syndrome, Newborn/prevention & control , Betamethasone/analogs & derivatives , Premature Birth , Glucocorticoids/administration & dosage , Prenatal Care/methods , Respiratory Distress Syndrome, Newborn/epidemiology , Betamethasone/administration & dosage , Incidence , Retrospective Studies , Hospitals, Public , Hyaline Membrane Disease/prevention & control , Lung/drug effectsABSTRACT
Objective Preterm birth is the major cause for neonatal deaths in low and middle income countries. The aim of this report is to evaluate the proportions of deaths of moderate to late preterm infants born at 32 to 36 weeks of gestations as well as the neonates with low birth weights weighing from 1500g to 2499g among the total neonatal deaths and analyze their causes of deaths in Lempira province, the Republic of Honduras. Study design A secondary analysis based on the data sets from the regional office of Ministry of Health.Methods We obtained data sets on infant mortality from January 2015 to June 2017 compiled by a regional office of Ministry of Health in Lempira province. We then calculated proportions of each cause of death in the groups of newborn infants stratified by gestational weeks and birth weights.Results During the study period, a total of 253 neonatal deaths were recorded, comprising 66.9% of the total infant deaths (n=378). The number of the newborn infants who died during early neonatal period was 201 (79.4%). The number of preterm newborn infants who died during neonatal period was 146 (57.7%) and 70 (27.6%) were born at moderate to late preterm periods. 103 (40.7%) were born with their birth-weights below 2500g, and the number of those weighing from 1500g to 2499g were 61 (24.1%). The leading cause of deaths of moderate to late preterm infants was hyaline membrane disease (n=25/48: 52.1%), as was the case with low birth weight infants weighing from 1500g to 2499g. Conclusion It was shown that approximately one fourths of neonatal deaths occurred in moderate to late preterm infants in Lempira province during the study period. Approximately half of these preterm infants died of hyaline membrane disease, who could have been saved with simple and low-cost equipment such as bubble continuous positive airway pressure.
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INTRODUCCIÓN: Múltiples factores influyen en el riesgo de morbimortalidad del prematuro con restricción del crecimiento intrauterino (RCIU). La comparación de gemelos con crecimiento intrauterino discordante permite evaluar su efecto, excluyendo factores maternos y manejo prenatal. Nuestro objetivo fue evaluar el efecto de la RCIU sobre la morbilidad aguda, crónica y mortalidad, en parejas de recién nacidos gemelares prematuros extremos. PACIENTES Y MÉTODO: Gemelos menores de 1500 g y 30 semanas de gestación, de la Red Neocosur. Se realizaron análisis separados de pares de gemelos concordantes, discordantes leves y severos, evaluando el efecto de la RCIU sobre morbi-mortalidad. Se realizó análisis multivariado para establecer magnitud del efecto. RESULTADOS: 459 pares de gemelos, 227 concordantes, 110 discordantes leves y 122 severos. Entre los concordantes solo hubo diferencia en uso de oxígeno a las 36 semanas. En discordantes leves, el menor tuvo menos enfermedad de membrana hialina y requirió menos dosis de surfactante, pero tuvo un mayor riesgo de Displasia broncopulmonar (DBP) o muerte. En discordantes severos, el menor presentó mayor mortalidad, sepsis, utilización y permanencia en ventilación mecánica, pese a menor frecuencia de enfermedad de membrana hialina. En regresión múltiple, el riesgo combinado de DBP o muerte fue mayor en gemelo menor y discordante severo. CONCLUSIÓN: En gemelos discordantes, la patología respiratoria aguda fue más frecuente en el gemelo mayor, aunque el riesgo de DBP o muerte fue mayor en el gemelo con RCIU.
INTRODUCTION: Multiple factors influence the risk of morbidity and mortality of premature infants with intrauterine growth restriction (IUGR). The comparison of twins with different intrauterine growth allows evaluating the effect of the restriction, excluding maternal factors and prenatal mana gement. Our objective was to assess the effect of IUGR on acute and chronic morbidity, and mortality of extreme preterm twins. PATIENTS AND METHOD: Twins weighing less than 1500 grams and gesta tion equal to or less than 30 weeks, of the Neocosur Network. Separate analyses were performed on concordant twin pairs, and on mild and severe discordant twins, evaluating the effect of IUGR on morbidity and mortality. A multivariate analysis was performed in order to establish the impact of this effect. RESULTS: 459 twin pairs, 227 concordant twins, 110 of mild discordance, and 122 of severe discordance. Among the concordant ones, there was only a difference in oxygen uptake at 36 weeks. In those of mild discordance, the smaller twin presented a lower frequency of hyaline membrane disease and required fewer doses of surfactant, but had a higher risk of bronchopulmonary dysplasia (BPD) or death. In severe discordant twins, the smaller one presented higher mortality, sepsis, use and permanence in mechanical ventilation, despite the lower frequency of hyaline membrane disease. In multiple regression analysis, the combined risk of BPD or death was higher in the smaller twin and of severe discordance. CONCLUSION: In discordant twins, the acute respiratory pathology was more frequent in the larger one, although the risk of BPD or death was higher in the one with IUGR.
Subject(s)
Humans , Male , Female , Infant, Newborn , Bronchopulmonary Dysplasia/etiology , Diseases in Twins/etiology , Fetal Growth Retardation/physiopathology , Neonatal Sepsis/etiology , Prognosis , Bronchopulmonary Dysplasia/diagnosis , Bronchopulmonary Dysplasia/mortality , Infant, Premature , Case-Control Studies , Logistic Models , Retrospective Studies , Risk Factors , Infant, Very Low Birth Weight , Diseases in Twins/diagnosis , Diseases in Twins/mortality , Neonatal Sepsis/diagnosis , Neonatal Sepsis/mortalityABSTRACT
Context: Neonatal period is the single most hazardous period of life. The major causes of neonatal death are prematurity and respiratory distress syndrome. We report a series of neonatal autopsies in our Neonatal Intensive Care Unit with special emphasis on pulmonary pathology. The spectrum of pathological changes in the lungs and thyroid transcription factor-1 (TTF-1) expression was studied in detail with reference to its spatial distribution. Aims: This study aims to analyze the causes of neonatal death with special attention to pulmonary pathology along with associated histopathological changes in lungs. We also evaluated the expression of TTF-1 at different levels of the airway. Materials and Methods: After taking consent and anthropometric measurements, autopsy was performed. Weights of all organs were taken, and histological sections were examined under hematoxylin and eosin stain. TTF-1 immunostaining was done on lung sections. Localization of TTF-1 was evaluated at the intrapulmonary level of terminal bronchioles (TBs), distal bronchioles, and alveoli. Results: We performed a series of 25 autopsies in neonates. In our series, most of the neonates were preterm (64%), had low birth weight (44%), and died within the first 7 days of life (80%). Majority (60%) of the neonates died due to pulmonary causes, followed by septicemia (24%), congenital anomalies (12%), and birth injury (4%). Among the respiratory causes, hyaline membrane disease (HMD) was diagnosed in maximum number of cases (32%), followed by pneumonia (12%) and pulmonary hemorrhage (12%). The TTF-1 expression in TBs, distal airways, and alveoli was significantly reduced or absent in cases of HMD compared to the control group. Conclusions: In this study, we observed that HMD is the most common cause of perinatal death among respiratory disorders, and in this disease, the expression of TTF-1 is significantly reduced in TBs, distal airways, and alveoli compared to the control group.
ABSTRACT
Chondroid syringoma (CS) also known as mixed tumor of the skin, is a rare benign adnexal tumor accounting for < 0.098%. Epithelial cells arranged in cords and tubules set in myxoid or chondroid stroma. Differentiation such as osteoid, sebaceous or mature adipocytes can be seen rarely. Hyaline cell rich is a rare variant of CS composed of cells with eosinophilic hyaline cytoplasm and plasmacytoid features. CS can have benign, atypical and malignant variants. The term atypical mixed tumor is recommended for those tumors which have histological features of malignancy such as infiltrative margin, satellite tumor nodules and tumor necrosis but without proven metastasis. Very few case reports of hyaline cellrich benign CS have been reported in the past, but to the best of our knowledge, possibly it is the first case of atypical hyaline cellrich CS of the little finger in a 65 year-old female showing divergent differentiation.