Caracterización de pacientes ingresados a la sala de reanimación de urgencias: estudio descriptivo en un hospital regional chileno, período 2013-2016 / Profile of patients in the emergency reanimation unit: obserbational study in a chilean hospital, 2013 to 2016

Introducción: Las patologías que podrían motivar el ingreso a una Sala de Reanimación (SR) son múltiples, y asimismo, presentarse en cualquier momento, independientemente del sexo y la edad. A pesar de esta versatilidad, no existen investigaciones que describan la realidad chilena y la literatura extranjera es escasa. En consecuencia, nuestro estudio buscó caracterizar clínico-demográficamente a los pacientes ingresados a SR del Hospital San Juan de Dios de Los Andes, Chile. Materiales y métodos: Estudio de corte transversal. Se trabajó con base de datos anonimizada. El tamaño muestral calculado fue de al menos 1014 sujetos (intervalo de confianza de 95%, precisión de 3%). Se incluyeron los ingresos entre enero de 2013 y junio de 2016, obteniendo una muestra de 1018 pacientes. Variables estudiadas: sexo, edad, diagnóstico general, diagnóstico específico, mes y horario. Se trabajó con Microsoft Excel® utilizando estadística descriptiva. Aprobado por comité éticocientífico. Resultados: 58,1% (n=593) hombres; 42,5% (n=434) mayores de 64 años. Diagnósticos generales más frecuentes: cardiovascular (50,3%) (n=512), neurológico (16,3%) (n=166) y traumático (11,7%) (n=119). Diagnósticos específicos más frecuentes: taquiarritmia (15,9%) (n=162) e infarto miocárdico (12,6%) (n=128). La mayor cantidad de ingresos se registró en enero, febrero y junio (promedio 28 ingresos), y entre las 20 y 00 hrs (22,8%) (n=232). Discusión: Existe un amplio predominio de las enfermedades cardiovasculares. La distribución por mes, sexo y edad parece estar supeditada al comportamiento de dicho grupo; no así la distribución por horarios, ya que las enfermedades cardiovasculares suelen presentarse matinalmente. En general, nuestros resultados coinciden con la literatura extranjera disponible.

Introduction: Admission to Resuscitation Room could be engendered by many different pathologies, which could appear at any time without regard to sex and age. Nevertheless, in spite of this versatility, there are no investigations that describe the Chilean reality, and the foreign literature is limited. Thus, our study sought to characterize clinically and demographically the patients admitted to RR of the Hospital San Juan de Dios de Los Andes, Chile. Materials and methods: A cross-sectional study was carried out based on an anonymised database. The calculated sample size was at least 1014 subjects (95% confidence interval, 3% accuracy). Convenience sampling was used, including admissions between January of 2013 and June of 2016, obtaining a sample of 1018 patients. Variables studied: sex, age, general diagnosis, specific diagnosis, month and schedule. We worked with Microsoft Excel® using descriptive statistics. Approved by ethical-scientific committee. Results: 58.1% (n=593) of the sample were men; with a 42.5% (n=434) of the whole sample being older than 64 years of age. Most frequent general diagnoses: cardiovascular (50.3%) (n=512), neurological (16.3%) (n=166) and traumatic (11.7%) (n=119). Most frequent specific diagnoses: tachyarrhythmia (15.9%) (n=162) and myocardial infarction (12.6%) (n= 128). The highest amount of admission was registered in January, February and June (average 28), and between 8 P.M. and midnight (22.8%) (n=232). Discussion: There is an apparent predominance of cardiovascular diseases. The distribution by month, sex and age seems to be contingent on the behavior of this group. This is not the case for the distribution by schedules, since cardiovascular diseases usually appear during the morning. In general, our results coincide with the available foreign literature.

Necesidad de reanimación en prematuros menores de 32 semanas expuestos a sulfato de magnesio para neuroprotección fetal / Need for resuscitation in preterm neonates less than 32 weeks treated with antenatal magnesium sulphate for neuroprotection

Introducción: El empleo de sulfato de magnesio para neuroprotección fetal es un tratamiento cada vez más frecuente. Objetivo: Estudiar la asociación entre sulfato de magnesio administrado a la gestante y la necesidad de reanimación neonatal. Pacientes y método: Estudio prospectivo de un grupo de prematuros menores de 32 semanas expuestos al sulfato de magnesio como neuroprotector y otro grupo retrospectivo inmediatamente anterior al inicio de este tratamiento. En ambos grupos se descartaron los casos que no habían recibido maduración pulmonar con corticoides. Se analizaron y compararon el porcentaje de reanimación y diferentes comorbilidades. Resultados: Se incluyó a 107 prematuros, 56 expuestos al sulfato de magnesio. El porcentaje de reanimación avanzada fue similar en ambos grupos. No se encontraron diferencias en mortalidad, ventilación mecánica invasiva, tiempo de la primera deposición y otras comorbilidades. Conclusiones: El sulfato de magnesio para neuroprotección no aumenta de forma significativa la necesidad de reanimación de los prematuros menores de 32 semanas.

Introduction: Magnesium sulphate administration is recommended for foetal neuroprotection in pregnant women at imminent risk of early preterm birth. Objective: To evaluate the relationship between intrapartum magnesium sulphate for foetal neuroprotection and delivery room resuscitation of preterm infants less 32 weeks. Patients and method: A prospective observational study was conducted on preterm infants less 32 weeks exposed to magnesium sulphate for neuroprotection, and a comparison made with another historic group immediately before starting this treatment. Cases in both groups that had not reached lung maturity with corticosteroids were rejected. The rates of resuscitation, morbidity and mortality for each of the groups were analysed and compared. Results: There was a total of 107 preterm, with 56 exposed to magnesium sulphate. Rate of advanced resuscitation were similar between the two groups. There were no other differences in mortality, invasive mechanical ventilation, time to first stool, and other comorbidities. Conclusions: Intrapartum magnesium sulphate for foetal neuroprotection was not associated with an increased need for intensive delivery room resuscitation and other morbidities in these cohorts of less than 32 weeks preterm infants.

Factors associated with the need for ventilation at birth of neonates weighing >/=; 2, 500 g

OBJECTIVES: Approximately 20-40% of annual global neonatal deaths occur among infants with birthweights ≥2,500 g, and most of these deaths are associated with intrapartum asphyxia in low- and middle-income countries. This study aims to evaluate the peripartum variables associated with the need for resuscitation at birth of neonates weighing ≥2,500 g. METHOD: This case-control retrospective study was performed on data from all public reference maternity units in the state of Ceará, Northeast Brazil, between March 2009 and March 2010. The subjects were singleton neonates without malformations weighing ≥2,500 g, who required positive-pressure ventilation in the delivery room. The controls had a 1-minute Apgar score of ≥8 and did not undergo resuscitation. Variables associated with positive-pressure ventilation in the delivery room were evaluated via conditional multivariate logistic regression. RESULTS: Of the 2,233 live births with birth weights ≥2,500 g, 1-minute Apgar scores ≤7, and no malformations, 402 patients met the inclusion criteria, and they were paired with 402 controls. Risk variables for positive-pressure ventilation at birth were a gestational age <37 weeks (OR: 3.54; 95% CI: 1.14-10.92) and meconium-stained amniotic fluid (8.53; 4.17-17.47). Cervical examination at maternal admission (0.57; 0.38-0.84) and a written follow-up of the labor (0.68; 0.46-0.98) were identified as protective variables. CONCLUSIONS: Significant flaws in obstetric care are associated with the need for positive-pressure ventilation at birth for neonates weighing ≥2,500 g.

Labor stimulation with oxytocin: effects on obstetrical and neonatal outcomes / Estimulação do parto com oxitocina: efeitos nos resultados obstétricos e neonatais / Estimulación del parto con oxitocina: efectos en los resultados obstétricos y neonatales

Abstract Objective: to evaluate the effects of labor stimulation with oxytocin on maternal and neonatal outcomes. Method: descriptive and analytical study with 338 women who gave birth at a tertiary hospital. Obstetric and neonatal variables were measured and compared in women submitted and non-submitted to stimulation with oxytocin. Statistics were performed using Chi-square test, Fisher exact test, Student t-test; and crude Odds Ratio with 95% confidence interval were calculated. A p < 0.05 was considered statistically significant. Results: stimulation with oxytocin increases the rates of cesarean sections, epidural anesthesia and intrapartum maternal fever in primiparous and multiparous women. It has also been associated with low pH values of umbilical cord blood and with a shorter duration of the first stage of labor in primiparous women. However, it did not affect the rates of 3rd and 4th degree perineal lacerations, episiotomies, advanced neonatal resuscitation, 5-minute Apgar scores and meconium. Conclusion: stimulation with oxytocin should not be used systematically, but only in specific cases. These findings provide further evidence to health professionals and midwives on the use of oxytocin during labor. Under normal conditions, women should be informed of the possible effects of labor stimulation with oxytocin.

Resumo Objetivo: avaliar os efeitos da estimulação do parto com oxitocina nos resultados maternos e neonatais. Método: estudo descritivo e analítico, com 338 mulheres que deram à luz em um hospital de nível terciário. Variáveis obstétricas e neonatais foram medidas e comparadas em mulheres com e sem estimulação com oxitocina. Estatísticas foram feitas utilizando-se o teste Qui-quadrado, teste exato de Fisher e o teste t-Student; e as Odds Ratio brutas com intervalo de confiança de 95% foram calculadas. Um valor de p < 0,05 foi considerado estatisticamente significativo. Resultados: a estimulação com oxitocina aumentou as taxas de cesarianas, anestesia peridural, febre materna intraparto em primíparas e multíparas. Ela também foi associada com baixos valores de pH do cordão umbilical e com uma menor duração da primeira fase do parto em primíparas. No entanto, ela não afetou as taxas de laceração perineal de terceiro e quarto graus, a episiotomia, a reanimação neonatal avançada, o teste de Apgar de 5 minutos e o mecônio. Conclusão: a estimulação com oxitocina não deveria ser utilizada de maneira sistemática, mas apenas em casos muito específicos. Estes resultados fornecem evidências adicionais aos profissionais de saúde e às parteiras sobre o uso de oxitocina durante o parto. Em condições normais, as mulheres deveriam ser informadas sobre os possíveis efeitos da estimulação com oxitocina.

Resumen Objetivo: valorar los efectos de la estimulación del parto con oxitocina en los resultados maternos y neonatales. Método: estudio descriptivo y analítico con 338 mujeres que parieron en un hospital de tercer nivel. Variables obstétricas y neonatales fueron medidas y comparadas en mujeres con y sin estimulación con oxitocina. Estadísticos Chi-cuadrado, test exacto de Fisher, test t-Student, Odd Ratio cruda y un intervalo de confianza del 95% fueron calculados. Un valor p < 0,05 se consideró estadísticamente significativo. Resultados: la estimulación con oxitocina incrementó el ratio de cesáreas, analgesia epidural, fiebre materna intraparto en primíparas y multíparas; también se relacionó con bajos valores de pH de cordón umbilical, y menor duración de la primera fase del parto en primíparas. Sin embargo no afectó la tasa de desgarros de 3-4 grado, episiotomías, reanimación neonatal avanzada, test de Apgar a los 5 minutos o meconio. Conclusión: la estimulación con oxitocina no debería emplearse de forma sistemática, sino solo en casos muy indicados. Estos hallazgos proporcionan mayor evidencia a los profesionales y matronas a cerca del uso de oxitocina durante el parto. En condiciones normales, las mujeres deberían estar informadas de los posibles efectos de la estimulación con oxitocina.

Caracterización de recién nacidos reanimados durante el año 2011 en el Hospital Clínico Regional de Concepción / Characterization of neonatal resuscitation during 2011 at Regional Clinical Hospital of Concepcion

INTRODUCCIÓN: La asfixia es responsable del 19 por ciento de las muertes neonatales que ocurren en el mundo. La reanimación neonatal disminuye la mortalidad en estos Recién Nacidos (RN). 10 por ciento de los RN requieren maniobras de reanimación, de éstos, 1 por ciento requiere reanimación avanzada. OBJETIVOS: Caracterizar los RN reanimados durante el año 2011 en un hospital público. Materiales y métodos: Estudio descriptivo retrospectivo, con historias clínicas correspondientes a la totalidad de RN durante el 2011 en el Hospital Clínico Regional de Concepción. Se seleccionaron RN que requirieron maniobras de reanimación desde ventilación a presión positiva. Se analizaron datos demográficos, Apgar, maniobras realizadas y antecedentes maternos. RESULTADOS: Del total de RN vivos (4095) fueron reanimados 130 (3,17 por ciento), de estos últimos un 57,69 por ciento de término. El 11,5 por ciento fue de muy bajo peso y el 11,5 por ciento de extremo bajo peso al nacer. Hubo parto vaginal en 49,6 por ciento y cesárea urgencia 40,8 por ciento. En relación al Apgar al (1’) resultó <7 en 93,18 por ciento de los RN. Se utilizó Ventilación a Presión Positiva (VPP) en 66,15 por ciento; reanimándose sólo con aire un 12,9 por ciento de RN de término y todos los RN Pretérmino fueron reanimados con oxígeno, regulado por oximetría de pulso. Se realizó intubación endotraqueal en 26,92 por ciento; 6,92 por ciento requirió masaje cardiaco y medicamentos. El 96,15 por ciento sobrevivió y 48,15 por ciento fueron hospitalizados en UCI. DISCUSIÓN: El porcentaje de RN reanimados fue bajo en comparación a lo señalado en la literatura, pese a ser un centro de referencia. La mayoría de los reanimados fue de término. La maniobra más utilizada fue la VPP.

INTRODUCTION: Asphyxia is responsible for 19 percent of neonatal deaths that occur worldwide. Neonatal resuscitation contributes to lower morbidity and mortality in newborns. 10 percent of newborns require some assistance to begin breathing at birth; of this group less than 1 percent require extensive resuscitative measures. OBJECTIVE: To characterize newborns resuscitated during2011 in a public hospital. Material and method: Descriptive retrospective study, including all infants born during 2011 in Regional Clinical Hospital of Concepción. Neonates that required resuscitation measures were selected from positive ventilation pressure. Demographic data, Apgar score, resuscitation measures and maternal history were analyzed. RESULTS: Out of the 4095 living newborns, 130 of them (3.17 percent) were resuscitated. Of this group, 57.69 percent were of term gestation, 11.5 percent of them were very low weight and 11.5 percent extremely low weight. Vaginal delivery ocurred in 49.6 percent and urgency cesarean section in 40.8 percent. Apgar score at (1’) resulted <7 in 93.18 percent of neonates. Positive-pressure ventilation was used in 66.15 percent; using air in 12.9 percent of term infants. All preterm infants were resuscitated with oxygen, regulated by pulse oximetry. Endotracheal intubation was used in 6.92 percent; whereas 6.92 percent required cardiac massage and drugs. 96.15 percent survived and 48.15 percent were admitted to ICU. DISCUSSION: The percentage of resuscitated neonates was low in comparison to the pointed out in literature, despite being a reference center. The majority of resuscitated infants had term gestation. The most used resuscitation measure was positive pressure ventilation.

Material and human resources for neonatal resuscitation in public maternity hospitals in Brazilian state capitals / Recursos materiais e humanos para a reanimação neonatal nas maternidades públicas das capitais brasileiras

CONTEXT AND OBJECTIVE: In 2002, the early neonatal mortality rate in Brazil was 12.42 per thousand live births. Perinatal asphyxia was the greatest cause of neonatal death (about 23 percent). This study aimed to evaluate the availability of the resources required for neonatal resuscitation in delivery rooms of public hospitals in Brazilian state capitals. DESIGN AND SETTING: Multicenter cross-sectional study involving 36 hospitals in 20 Brazilian state capitals in June 2003. METHODS: Each Brazilian region was represented by 1-4 percent of its live births. A local coordinator collected data regarding physical infrastructure, supplies and professionals available for neonatal resuscitation in the delivery room. The information was analyzed using the Statistical Package for the Social Sciences, version 10. RESULTS: Among the 36 hospitals, 89 percent were referral centers for high-risk pregnancies. Each institution had a monthly mean of 365 live births (3 percent < 1,500 g and 15 percent < 2,500 g). The 36 hospitals had 125 resuscitation tables (3-4 per hospital), all with overhead radiant heat, oxygen and vacuum sources. Appropriate equipment for pulmonary ventilation was available for more than 90 percent of the 125 resuscitation tables. On average, one pediatrician, three nurses and five nursing assistants per shift worked in the delivery rooms of each institution. Out of the 874 pediatricians and 1,037 nursing personnel that worked in the delivery rooms of the 36 hospitals, 94 percent and 22 percent, respectively, were trained in neonatal resuscitation. CONCLUSIONS: The main public maternity hospitals in Brazilian state capitals have the resources to resuscitate neonates at birth.

CONTEXTO E OBJETIVO: Em 2002, a mortalidade neonatal precoce brasileira foi 12,42 para cada mil nascidos vivos e a asfixia perinatal foi responsável por 23 por cento dessas mortes. Este estudo visa avaliar a disponibilidade dos recursos necessários para a reanimação neonatal nas salas de parto de hospitais públicos brasileiros. TIPO DE ESTUDO E LOCAL: Estudo transversal multicêntrico de 36 maternidades, em 20 capitais brasileiras, em junho de 2003. MÉTODOS: As maternidades selecionadas em cada região brasileira representaram 1-4 por cento dos nascidos vivos da região. O coordenador local da pesquisa respondeu a um questionário estruturado com dados a respeito da estrutura física, os equipamentos e o pessoal disponível para a reanimação neonatal em cada maternidade. A análise descritiva foi feita por meio do programa Statistical Package for Social Science 10.0. RESULTADOS: 89 por cento das 36 maternidades eram referência para gestação de risco. Cada hospital tinha um número médio mensal de 365 nascimentos (3 por cento < 1.500 g e 15 por cento < 2.500 g). Os 36 hospitais tinham 125 mesas de reanimação (3-4/hospital), todas com calor radiante, fonte de oxigênio e vácuo. Equipamento adequado para ventilação pulmonar estava disponível em mais de 90 por cento das 125 mesas. Em média, um pediatra, três enfermeiras e cinco auxiliares de enfermagem trabalhavam por turno nas salas de parto de cada instituição. Dos 874 pediatras e 1.037 profissionais de enfermagem que atuavam nas salas de parto, 94 por cento e 22 por cento haviam recebido treinamento em reanimação neonatal respectivamente. CONCLUSÕES: As maternidades públicas das capitais brasileiras apresentam salas de parto com infra-estrutura adequada para a reanimação neonatal.